opendj-maven-plugin/src/main/resources/config/xml/org/forgerock/opendj/server/config/JEBackendConfiguration.xml
@@ -726,6 +726,15 @@ all the property parameters is available in the example.properties file of Berkeley DB Java Edition distribution. </adm:description> <adm:requires-admin-action> <adm:none> <adm:synopsis> A change of a property which Berkeley DB Java Edition does not accept while the environment runs takes effect when the backend is restarted, and the change result says so. </adm:synopsis> </adm:none> </adm:requires-admin-action> <adm:default-behavior> <adm:undefined /> </adm:default-behavior> opendj-maven-plugin/src/main/resources/config/xml/org/forgerock/opendj/server/config/PDBBackendConfiguration.xml
@@ -254,6 +254,9 @@ disk, but also potentially causes recovery from an abrupt termination (crash) to take more time. </adm:description> <adm:requires-admin-action> <adm:component-restart /> </adm:requires-admin-action> <adm:default-behavior> <adm:defined> <adm:value>15s</adm:value> opendj-server-legacy/src/main/java/org/opends/server/backends/jeb/ConfigurableEnvironment.java
@@ -378,7 +378,25 @@ static EnvironmentConfig parseConfigEntry(JEBackendCfg cfg) throws ConfigException { validateDbCacheSize(cfg.getDBCacheSize()); final EnvironmentConfig envConfig = toEnvironmentConfig(cfg); // The JE loggers are shared by every environment of the JVM: their level is set by the open, not // built into the configuration of one environment. Logger.getLogger("com.sleepycat.je").setLevel(parseLoggingLevel(cfg.getDBLoggingLevel(), cfg.dn())); return envConfig; } /** * Build the environment configuration the given configuration describes, and nothing else: no * check of the cache size against the memory quota, no level set on the JE loggers. What a * configuration change is checked as, applied to a running environment and held against, is * built here. * * @param cfg The configuration to be parsed. * @return An environment config instance corresponding to the configuration. * @throws ConfigException If there is an error in the provided configuration. */ static EnvironmentConfig toEnvironmentConfig(JEBackendCfg cfg) throws ConfigException { EnvironmentConfig envConfig = defaultConfig(); setDurability(envConfig, cfg.isDBTxnNoSync(), cfg.isDBTxnWriteNoSync()); setJEProperties(cfg, envConfig, cfg.dn().rdn().getFirstAVA().getAttributeValue()); @@ -389,6 +407,19 @@ return setJEProperties(envConfig, cfg.getJEProperty(), attrMap); } /** * Get the name a JE property is configured under: the property of the backend configuration * which is mapped to it, or the JE property's own name when it is set through je-property alone. * * @param jeProperty The JE property name. * @return The name the operator changes it by. */ static String configuredNameOf(String jeProperty) { final String attrName = attrMap.get(jeProperty); return attrName != null ? attrName.substring(ConfigConstants.NAME_PREFIX_CFG.length()) : jeProperty; } private static void validateDbCacheSize(long dbCacheSize) throws ConfigException { if (dbCacheSize != 0) @@ -430,6 +461,12 @@ { envConfig.setDurability(Durability.COMMIT_WRITE_NO_SYNC); } else { // What JE falls back on when a configuration sets none - but set, so that a change back from // either flag replaces the durability the environment runs with rather than leaving it be. envConfig.setDurability(Durability.COMMIT_SYNC); } } private static void setJEProperties(BackendCfg cfg, EnvironmentConfig envConfig, ByteString backendId) @@ -447,18 +484,22 @@ private static void setDBLoggingLevel(EnvironmentConfig envConfig, String loggingLevel, DN dn, boolean loggingFileHandlerOn) throws ConfigException { Logger parent = Logger.getLogger("com.sleepycat.je"); // Refused as a whole here; the level itself is set on the JE loggers by the open. parseLoggingLevel(loggingLevel, dn); final Level level = loggingFileHandlerOn ? Level.ALL : Level.OFF; envConfig.setConfigParam(FILE_LOGGING_LEVEL, level.getName()); } private static Level parseLoggingLevel(String loggingLevel, DN dn) throws ConfigException { try { parent.setLevel(Level.parse(loggingLevel)); return Level.parse(loggingLevel); } catch (Exception e) { throw new ConfigException(ERR_JEB_INVALID_LOGGING_LEVEL.get(loggingLevel, dn)); } final Level level = loggingFileHandlerOn ? Level.ALL : Level.OFF; envConfig.setConfigParam(FILE_LOGGING_LEVEL, level.getName()); } /** opendj-server-legacy/src/main/java/org/opends/server/backends/jeb/JEStorage.java
@@ -42,6 +42,7 @@ import java.util.NoSuchElementException; import java.util.Objects; import java.util.Set; import java.util.TreeMap; import java.util.concurrent.ConcurrentHashMap; import java.util.concurrent.ConcurrentMap; import java.util.concurrent.TimeUnit; @@ -52,6 +53,7 @@ import org.forgerock.opendj.config.server.ConfigException; import org.forgerock.opendj.ldap.ByteSequence; import org.forgerock.opendj.ldap.ByteString; import org.forgerock.opendj.ldap.ResultCode; import org.forgerock.util.Reject; import org.forgerock.opendj.config.server.ConfigurationChangeListener; import org.forgerock.opendj.server.config.server.JEBackendCfg; @@ -95,6 +97,8 @@ import com.sleepycat.je.OperationStatus; import com.sleepycat.je.Transaction; import com.sleepycat.je.TransactionConfig; import com.sleepycat.je.config.ConfigParam; import com.sleepycat.je.config.EnvironmentParams; /** Berkeley DB Java Edition (JE for short) database implementation of the {@link Storage} engine. */ public final class JEStorage implements Storage, Backupable, ConfigurationChangeListener<JEBackendCfg>, @@ -721,6 +725,12 @@ private final ServerContext serverContext; private final File backendDirectory; /** * The mode last written to the directory the storage runs on. A mode changed along with a move of * db-directory is written to the directory moved to alone, so the configuration as last changed * does not say what the running directory has. */ private String runningDirectoryPermissions; private JEBackendCfg config; private AccessMode accessMode; @@ -791,6 +801,7 @@ this.maxRetries = maxRetries; this.retryWindowNanos = retryWindowNanos; backendDirectory = getBackendDirectory(cfg); runningDirectoryPermissions = cfg.getDBDirectoryPermissions(); config = cfg; cfg.addJEChangeListener(this); } @@ -988,6 +999,7 @@ private void open0() throws ConfigException { setupStorageFiles(backendDirectory, config.getDBDirectoryPermissions(), config.dn()); runningDirectoryPermissions = config.getDBDirectoryPermissions(); try { env = new Environment(backendDirectory, envConfig); @@ -1209,7 +1221,9 @@ @Override public File getDirectory() { return getBackendDirectory(config); // The directory the storage runs on: a db-directory moved while it runs is used from the next open, // which a new storage makes. return backendDirectory; } private static File getBackendDirectory(JEBackendCfg cfg) @@ -1470,7 +1484,8 @@ final MemoryQuota quota = serverContext.getMemoryQuota(); return (newSize <= Math.max(reservedCacheSize, computeSize(config)) || quota.isMemoryAvailable(newSize - reservedCacheSize)) && checkConfigurationDirectories(newCfg, unacceptableReasons); && checkConfigurationDirectories(newCfg, unacceptableReasons) && checkEnvironmentConfiguration(newCfg, unacceptableReasons); } private long computeSize(JEBackendCfg cfg) @@ -1506,7 +1521,28 @@ return false; } } return checkConfigurationDirectories(cfg, unacceptableReasons); return checkConfigurationDirectories(cfg, unacceptableReasons) && checkEnvironmentConfiguration(cfg, unacceptableReasons); } /** * Whether an environment can be configured from the given configuration. A durability which * sets both flags, or a native property JE does not know, is refused here, before the change * is written - rather than by the next open of the backend, which is where a configuration * nothing checked used to fail. */ private static boolean checkEnvironmentConfiguration(JEBackendCfg cfg, List<LocalizableMessage> unacceptableReasons) { try { ConfigurableEnvironment.toEnvironmentConfig(cfg); return true; } catch (ConfigException e) { unacceptableReasons.add(e.getMessageObject()); return false; } } private static boolean checkConfigurationDirectories(JEBackendCfg cfg, @@ -1533,9 +1569,12 @@ try { File newBackendDirectory = getBackendDirectory(cfg); // Against the directory the storage runs on rather than the configuration as last changed, so // that a later change still asks for the restart a move is waiting for. final boolean moved = !newBackendDirectory.equals(backendDirectory); // Create the directory if it doesn't exist. if (!cfg.getDBDirectory().equals(config.getDBDirectory())) if (moved) { checkDBDirExistsOrCanCreate(newBackendDirectory, ccr, false); if (!ccr.getMessages().isEmpty()) @@ -1544,23 +1583,29 @@ } ccr.setAdminActionRequired(true); ccr.addMessage(NOTE_CONFIG_DB_DIR_REQUIRES_RESTART.get(config.getDBDirectory(), cfg.getDBDirectory())); ccr.addMessage(NOTE_CONFIG_DB_DIR_REQUIRES_RESTART.get(backendDirectory, newBackendDirectory)); } if (!cfg.getDBDirectoryPermissions().equalsIgnoreCase(config.getDBDirectoryPermissions()) || !cfg.getDBDirectory().equals(config.getDBDirectory())) if (!cfg.getDBDirectoryPermissions().equalsIgnoreCase(runningDirectoryPermissions) || moved) { checkDBDirPermissions(cfg.getDBDirectoryPermissions(), cfg.dn(), ccr); if (!ccr.getMessages().isEmpty()) // By its result code: the note of a moved directory is in the result already, and the rest of // the change is still applied and reported alongside it. if (ccr.getResultCode() != ResultCode.SUCCESS) { return ccr; } setDBDirPermissions(newBackendDirectory, cfg.getDBDirectoryPermissions(), cfg.dn(), ccr); if (!ccr.getMessages().isEmpty()) if (ccr.getResultCode() != ResultCode.SUCCESS) { return ccr; } if (!moved) { runningDirectoryPermissions = cfg.getDBDirectoryPermissions(); } } final long newCacheSize = computeSize(cfg); if (env != null && newCacheSize != configuredCacheSize) @@ -1572,6 +1617,12 @@ ccr.addMessage( NOTE_CONFIG_DB_CACHE_REQUIRES_RESTART.get(cfg.getBackendId(), configuredCacheSize, newCacheSize)); } // An import runs the environment on a configuration of its own, which goes with it: the backend // opens again on the configuration as changed once the import is over. if (env != null && envConfig.getTransactional()) { applyToEnvironment(cfg, ccr); } registerMonitoredDirectory(cfg); config = cfg; } @@ -1582,6 +1633,99 @@ return ccr; } /** * Applies to the running environment what JE takes while it runs, and asks for a restart for what * it takes at the open alone. The environment is configured when it opens, from the configuration * as it is then: a change of a property JE accepts as mutable is handed to the environment here, * and a change of one it does not is reported - the change result reaches the error log, where a * change reported as applied while the environment ran on unchanged until its next open did not. * <p> * The cache is the one mutable setting left where the open put it: it is sized with the memory * reserved for it, and a change of its size asks for a restart above, at which the next open * reserves the new size. */ private void applyToEnvironment(JEBackendCfg cfg, ConfigChangeResult ccr) throws ConfigException { final EnvironmentConfig next = ConfigurableEnvironment.toEnvironmentConfig(cfg); final EnvironmentConfig running = env.getConfig(); for (ConfigParam param : new TreeMap<>(EnvironmentParams.SUPPORTED_PARAMS).values()) { // Replication parameters are not set through an environment configuration; a multi-value // parameter is not read as one value. Neither is set by this storage. if (param.isForReplication() || param.isMultiValueParam()) { continue; } final String runningValue = running.getConfigParam(param.getName()); final String nextValue = next.getConfigParam(param.getName()); if (Objects.equals(runningValue, nextValue) || (param.isMutable() && !switchesOffHeapCache(param.getName(), runningValue, nextValue) && (next.isConfigParamSet(param.getName()) || resetsToDefault(next, param.getName(), nextValue)))) { continue; } ccr.setAdminActionRequired(true); ccr.addMessage(NOTE_CONFIG_DB_PROPERTY_REQUIRES_RESTART.get( ConfigurableEnvironment.configuredNameOf(param.getName()), cfg.getBackendId(), runningValue, nextValue)); } next.setConfigParam(MAX_MEMORY, running.getConfigParam(MAX_MEMORY)); next.setConfigParam(MAX_MEMORY_PERCENT, running.getConfigParam(MAX_MEMORY_PERCENT)); // The off-heap cache is switched on or off by the next open alone, which the change asks for above. final String offHeapRunning = running.getConfigParam(MAX_OFF_HEAP_MEMORY); if (switchesOffHeapCache(MAX_OFF_HEAP_MEMORY, offHeapRunning, next.getConfigParam(MAX_OFF_HEAP_MEMORY))) { next.setConfigParam(MAX_OFF_HEAP_MEMORY, offHeapRunning); } // What JE takes while it runs, of the properties the configuration sets; the rest it ignores. env.setMutableConfig(next); } /** * Tells whether a change of the given parameter switches JE's off-heap cache on or off. JE takes a * change of the off-heap cache size while it runs, but not one between zero and non-zero: it throws * once it has already taken the new value as its own, and so throws again on every change which * follows, until the next open - which does it. * * @param name the name of the parameter * @param runningValue the value the environment runs with * @param nextValue the value configured * @return whether the change switches the off-heap cache on or off */ private static boolean switchesOffHeapCache(String name, String runningValue, String nextValue) { return MAX_OFF_HEAP_MEMORY.equals(name) && (Long.parseLong(runningValue) > 0) != (Long.parseLong(nextValue) > 0); } /** * Sets a mutable parameter the configuration no longer sets - a je-property removed - to JE's * default, since the environment keeps the value it runs with of every parameter it is not handed. * A default JE does not take as a value, such as the 0 of je.cleaner.readSize, which JE reads as * "computed at the open", leaves the parameter to the next open. * * @param next the environment configuration handed to the running environment * @param name the name of the parameter * @param defaultValue JE's default of the parameter, as the configuration reads it * @return whether the default is handed to the environment along with the rest */ private static boolean resetsToDefault(EnvironmentConfig next, String name, String defaultValue) { if (defaultValue == null) { return false; } try { next.setConfigParam(name, defaultValue); return true; } catch (IllegalArgumentException e) { return false; } } private void registerMonitoredDirectory(JEBackendCfg cfg) { diskMonitor.registerMonitoredDirectory( opendj-server-legacy/src/main/java/org/opends/server/backends/pdb/PDBStorage.java
@@ -51,6 +51,8 @@ import org.forgerock.opendj.config.server.ConfigurationChangeListener; import org.forgerock.opendj.ldap.ByteSequence; import org.forgerock.opendj.ldap.ByteString; import org.forgerock.opendj.ldap.ResultCode; import org.forgerock.opendj.server.config.meta.PDBBackendCfgDefn; import org.forgerock.opendj.server.config.server.PDBBackendCfg; import org.forgerock.util.Reject; import org.opends.server.api.Backupable; @@ -999,6 +1001,12 @@ private final ServerContext serverContext; private final File backendDirectory; /** * The mode last written to the directory the storage runs on. A mode changed along with a move of * db-directory is written to the directory moved to alone, so the configuration as last changed * does not say what the running directory has. */ private String runningDirectoryPermissions; private CommitPolicy commitPolicy; private AccessMode accessMode; /** It is NULL when opening the storage READ-ONLY and no files have been created yet. */ @@ -1066,6 +1074,7 @@ this.maxRetries = maxRetries; this.retryWindowNanos = retryWindowNanos; backendDirectory = getBackendDirectory(cfg); runningDirectoryPermissions = cfg.getDBDirectoryPermissions(); config = cfg; cfg.addPDBChangeListener(this); } @@ -1233,6 +1242,7 @@ private void open0(final Configuration dbCfg) throws ConfigException { setupStorageFiles(backendDirectory, config.getDBDirectoryPermissions(), config.dn()); runningDirectoryPermissions = config.getDBDirectoryPermissions(); try { db = new Persistit(dbCfg); @@ -1335,7 +1345,9 @@ @Override public File getDirectory() { return getBackendDirectory(config); // The directory the storage runs on: a db-directory moved while it runs is used from the next open, // which a new storage makes. return backendDirectory; } private static File getBackendDirectory(PDBBackendCfg cfg) @@ -1621,9 +1633,12 @@ try { File newBackendDirectory = getBackendDirectory(cfg); // Against the directory the storage runs on rather than the configuration as last changed, so // that a later change still asks for the restart a move is waiting for. final boolean moved = !newBackendDirectory.equals(backendDirectory); // Create the directory if it doesn't exist. if(!cfg.getDBDirectory().equals(config.getDBDirectory())) if (moved) { checkDBDirExistsOrCanCreate(newBackendDirectory, ccr, false); if (!ccr.getMessages().isEmpty()) @@ -1632,23 +1647,29 @@ } ccr.setAdminActionRequired(true); ccr.addMessage(NOTE_CONFIG_DB_DIR_REQUIRES_RESTART.get(config.getDBDirectory(), cfg.getDBDirectory())); ccr.addMessage(NOTE_CONFIG_DB_DIR_REQUIRES_RESTART.get(backendDirectory, newBackendDirectory)); } if (!cfg.getDBDirectoryPermissions().equalsIgnoreCase(config.getDBDirectoryPermissions()) || !cfg.getDBDirectory().equals(config.getDBDirectory())) if (!cfg.getDBDirectoryPermissions().equalsIgnoreCase(runningDirectoryPermissions) || moved) { checkDBDirPermissions(cfg.getDBDirectoryPermissions(), cfg.dn(), ccr); if (!ccr.getMessages().isEmpty()) // By its result code: the note of a moved directory is in the result already, and the rest of // the change is still applied and reported alongside it. if (ccr.getResultCode() != ResultCode.SUCCESS) { return ccr; } setDBDirPermissions(newBackendDirectory, cfg.getDBDirectoryPermissions(), cfg.dn(), ccr); if (!ccr.getMessages().isEmpty()) if (ccr.getResultCode() != ResultCode.SUCCESS) { return ccr; } if (!moved) { runningDirectoryPermissions = cfg.getDBDirectoryPermissions(); } } final long newCacheSize = computeSize(cfg); if (db != null && newCacheSize != configuredCacheSize) @@ -1660,6 +1681,15 @@ ccr.addMessage( NOTE_CONFIG_DB_CACHE_REQUIRES_RESTART.get(cfg.getBackendId(), configuredCacheSize, newCacheSize)); } if (db != null && cfg.getDBCheckpointerWakeupInterval() != db.getConfiguration().getCheckpointInterval()) { // The checkpoint interval is set on the PersistIt configuration when the database opens, and // PersistIt takes no configuration once one is set: the next open of the backend applies it. ccr.setAdminActionRequired(true); ccr.addMessage(NOTE_CONFIG_DB_PROPERTY_REQUIRES_RESTART.get( PDBBackendCfgDefn.getInstance().getDBCheckpointerWakeupIntervalPropertyDefinition().getName(), cfg.getBackendId(), db.getConfiguration().getCheckpointInterval(), cfg.getDBCheckpointerWakeupInterval())); } registerMonitoredDirectory(cfg); config = cfg; commitPolicy = config.isDBTxnNoSync() ? SOFT : GROUP; opendj-server-legacy/src/messages/org/opends/messages/backend.properties
@@ -1173,3 +1173,5 @@ NOTE_CONFIG_DB_CACHE_REQUIRES_RESTART_630=The change to the database cache of backend %s will not take effect \ until the backend is restarted: until then the cache keeps the size the backend was opened with, which the \ memory quota counts as %d bytes, and the next open reserves the %d bytes the quota counts for the new configuration NOTE_CONFIG_DB_PROPERTY_REQUIRES_RESTART_631=The change to %s of backend %s from %s to %s will not take \ effect until the backend is restarted: the database takes that setting when it opens, not while it runs opendj-server-legacy/src/test/java/org/opends/server/backends/jeb/JEStorageTest.java
@@ -15,26 +15,54 @@ */ package org.opends.server.backends.jeb; import static com.sleepycat.je.EnvironmentConfig.CLEANER_MIN_AGE; import static com.sleepycat.je.EnvironmentConfig.CLEANER_MIN_UTILIZATION; import static com.sleepycat.je.EnvironmentConfig.CLEANER_READ_SIZE; import static com.sleepycat.je.EnvironmentConfig.CLEANER_THREADS; import static com.sleepycat.je.EnvironmentConfig.ENV_RUN_CLEANER; import static com.sleepycat.je.EnvironmentConfig.EVICTOR_CORE_THREADS; import static com.sleepycat.je.EnvironmentConfig.EVICTOR_KEEP_ALIVE; import static com.sleepycat.je.EnvironmentConfig.EVICTOR_MAX_THREADS; import static com.sleepycat.je.EnvironmentConfig.LOG_FILE_MAX; import static com.sleepycat.je.EnvironmentConfig.LOG_ITERATOR_READ_SIZE; import static com.sleepycat.je.EnvironmentConfig.MAX_OFF_HEAP_MEMORY; import static org.assertj.core.api.Assertions.assertThat; import static org.assertj.core.api.Assertions.fail; import static org.assertj.core.api.Assertions.failBecauseExceptionWasNotThrown; import static org.forgerock.opendj.config.ConfigurationMock.mockCfg; import static org.forgerock.opendj.ldap.ByteString.valueOfUtf8; import static org.mockito.Matchers.any; import static org.mockito.Matchers.anyLong; import static org.mockito.Matchers.anyString; import static org.mockito.Mockito.atLeastOnce; import static org.mockito.Mockito.mock; import static org.mockito.Mockito.verify; import static org.mockito.Mockito.when; import static org.opends.messages.BackendMessages.ERR_CONFIG_JEB_DURABILITY_CONFLICT; import static org.opends.messages.BackendMessages.NOTE_CONFIG_DB_CACHE_REQUIRES_RESTART; import static org.opends.messages.BackendMessages.NOTE_CONFIG_DB_DIR_REQUIRES_RESTART; import static org.opends.messages.BackendMessages.NOTE_CONFIG_DB_PROPERTY_REQUIRES_RESTART; import static org.opends.messages.ConfigMessages.ERR_CONFIG_BACKEND_INSANE_MODE; import static org.opends.messages.ConfigMessages.ERR_CONFIG_JE_PROPERTY_INVALID; import static org.opends.server.util.CollectionUtils.newTreeSet; import static org.opends.server.util.StaticUtils.MB; import static org.opends.server.util.StaticUtils.getFileForPath; import static org.opends.server.util.StaticUtils.recursiveDelete; import java.io.File; import java.lang.reflect.Field; import java.nio.file.FileSystems; import java.nio.file.Files; import java.nio.file.attribute.PosixFilePermissions; import java.util.ArrayList; import java.util.Arrays; import java.util.List; import java.util.concurrent.CountDownLatch; import java.util.concurrent.CyclicBarrier; import java.util.concurrent.TimeUnit; import java.util.concurrent.atomic.AtomicInteger; import java.util.concurrent.atomic.AtomicReference; import java.util.TreeSet; import org.forgerock.i18n.LocalizableMessage; import org.forgerock.opendj.config.server.ConfigChangeResult; @@ -43,9 +71,12 @@ import org.forgerock.opendj.ldap.DN; import org.forgerock.opendj.ldap.ResultCode; import org.forgerock.opendj.server.config.server.JEBackendCfg; import org.mockito.ArgumentCaptor; import org.opends.server.DirectoryServerTestCase; import org.opends.server.TestCaseUtils; import org.opends.server.api.DiskSpaceMonitorHandler; import org.opends.server.backends.pluggable.spi.AccessMode; import org.opends.server.backends.pluggable.spi.Importer; import org.opends.server.backends.pluggable.spi.ReadOperation; import org.opends.server.backends.pluggable.spi.ReadableTransaction; import org.opends.server.backends.pluggable.spi.StorageRuntimeException; @@ -55,18 +86,23 @@ import org.opends.server.core.MemoryQuota; import org.opends.server.core.ServerContext; import org.opends.server.extensions.DiskSpaceMonitor; import org.testng.SkipException; import org.testng.annotations.AfterMethod; import org.testng.annotations.BeforeClass; import org.testng.annotations.BeforeMethod; import org.testng.annotations.Test; import com.sleepycat.je.Durability; import com.sleepycat.je.Environment; import com.sleepycat.je.EnvironmentMutableConfig; import com.sleepycat.je.LockConflictException; import com.sleepycat.je.LockTimeoutException; /** * Tests what a {@link JEStorage} takes as it opens and gives back when the open fails - the twin * of the same cases on {@code PDBStorageTest} - and the replay of a {@link JEStorage#write} whose * transaction JE ends with a {@link LockConflictException}. * of the same cases on {@code PDBStorageTest} - what a configuration change reaches of the * environment it runs, and the replay of a {@link JEStorage#write} whose transaction JE ends with a * {@link LockConflictException}. * <p> * The conflicts are the engine's own. A deadlock is made by two writers locking two records in opposite order, * which JE resolves by throwing at a random victim; a conflict on every attempt is made by a transaction which @@ -86,6 +122,8 @@ * what a backend whose directory the server cannot use meets. */ private static final String BLOCKED_DB_DIRECTORY = BACKEND_ID + "-blocked"; /** Where a change moves db-directory to; the environment stays where it opened until a restart. */ private static final String MOVED_DB_DIRECTORY = BACKEND_ID + "-moved"; /** A window no run of replays can spend, so that a test of the attempt cap is only ever ended by the cap. */ private static final long UNREACHABLE_RETRY_WINDOW_NANOS = 300L * 1000L * 1000L * 1000L; //5 min /** A window a single attempt outlasts, so that a test of the window reaches it without seconds of build time. */ @@ -338,6 +376,7 @@ storage.open(AccessMode.READ_WRITE); final JEBackendCfg unchangedCache = createBackendCfg(0L, 10); when(unchangedCache.isDBTxnNoSync()).thenReturn(true); when(unchangedCache.isDBTxnWriteNoSync()).thenReturn(false); final ConfigChangeResult unchanged = storage.applyConfigurationChange(unchangedCache); assertThat(unchanged.adminActionRequired()).isFalse(); @@ -383,6 +422,7 @@ storage.open(AccessMode.READ_WRITE); final JEBackendCfg unchangedCache = createBackendCfg(SMALL_CACHE); when(unchangedCache.isDBTxnNoSync()).thenReturn(true); when(unchangedCache.isDBTxnWriteNoSync()).thenReturn(false); final ConfigChangeResult ccr = storage.applyConfigurationChange(unchangedCache); @@ -448,6 +488,7 @@ openWithTheReservationRefused(); final JEBackendCfg unchangedCache = createBackendCfg(SMALL_CACHE); when(unchangedCache.isDBTxnNoSync()).thenReturn(true); when(unchangedCache.isDBTxnWriteNoSync()).thenReturn(false); assertThat(storage.isConfigurationChangeAcceptable(unchangedCache, new ArrayList<LocalizableMessage>())) .isTrue(); @@ -532,6 +573,534 @@ assertThat(quota.getAvailableMemory()).isEqualTo(availableBefore); } /** * What JE takes while it runs - the cleaner, the evictor pool and the durability - is applied * to the running environment by a configuration change, and the operator is asked for nothing. * Built at the open and never touched again, the environment ran on unchanged until the next * open while the change was reported as applied. */ @Test public void aChangeOfWhatJETakesWhileItRunsReachesTheEnvironment() throws Exception { final Environment env = environmentOf(storage); assertThat(env.getMutableConfig().getConfigParam(CLEANER_MIN_UTILIZATION)).isEqualTo("50"); final JEBackendCfg cfg = createBackendCfg(); when(cfg.getDBCleanerMinUtilization()).thenReturn(60); when(cfg.isDBRunCleaner()).thenReturn(false); when(cfg.getDBEvictorCoreThreads()).thenReturn(2); when(cfg.getDBEvictorMaxThreads()).thenReturn(4); when(cfg.getDBEvictorKeepAlive()).thenReturn(120L); when(cfg.getDBNumCleanerThreads()).thenReturn(3); final ConfigChangeResult ccr = storage.applyConfigurationChange(cfg); assertThat(ccr.getResultCode()).isEqualTo(ResultCode.SUCCESS); assertThat(ccr.adminActionRequired()).isFalse(); assertThat(ccr.getMessages()).isEmpty(); final EnvironmentMutableConfig running = env.getMutableConfig(); assertThat(running.getConfigParam(CLEANER_MIN_UTILIZATION)).isEqualTo("60"); assertThat(running.getConfigParam(ENV_RUN_CLEANER)).isEqualTo("false"); assertThat(running.getConfigParam(EVICTOR_CORE_THREADS)).isEqualTo("2"); assertThat(running.getConfigParam(EVICTOR_MAX_THREADS)).isEqualTo("4"); // a JE duration, in microseconds assertThat(running.getConfigParam(EVICTOR_KEEP_ALIVE)).isEqualTo("120000000"); assertThat(running.getConfigParam(CLEANER_THREADS)).isEqualTo("3"); } /** * The durability follows the change every way. It is what the transactions of this storage * commit with, taken from the environment handle: a change set on the handle reaches the next * transaction - a change which sets neither flag included, which commits synchronously, set as * such rather than left to what JE falls back on, since JE leaves a durability it has in place * when it is handed none. */ @Test public void aChangeOfTheDurabilityReachesTheEnvironmentEveryWay() throws Exception { final Environment env = environmentOf(storage); // db-txn-write-no-sync is on by default assertThat(env.getConfig().getDurability()).isEqualTo(Durability.COMMIT_WRITE_NO_SYNC); final JEBackendCfg noSync = createBackendCfg(); when(noSync.isDBTxnNoSync()).thenReturn(true); when(noSync.isDBTxnWriteNoSync()).thenReturn(false); assertThat(storage.applyConfigurationChange(noSync).getMessages()).isEmpty(); assertThat(env.getConfig().getDurability()).isEqualTo(Durability.COMMIT_NO_SYNC); final JEBackendCfg sync = createBackendCfg(); when(sync.isDBTxnWriteNoSync()).thenReturn(false); assertThat(storage.applyConfigurationChange(sync).getMessages()).isEmpty(); assertThat(env.getConfig().getDurability()).isEqualTo(Durability.COMMIT_SYNC); assertThat(storage.applyConfigurationChange(createBackendCfg()).getMessages()).isEmpty(); assertThat(env.getConfig().getDurability()).isEqualTo(Durability.COMMIT_WRITE_NO_SYNC); } /** * A native property set through je-property is applied when JE takes it while it runs, and * asks for a restart when JE takes it at the open alone: the change result names the property, * what the environment runs with and what is now configured, and the environment keeps the * former. */ @Test public void aNativePropertyIsAppliedOrAsksForARestartAsJETakesIt() throws Exception { final Environment env = environmentOf(storage); final String readSizeAtOpen = env.getConfig().getConfigParam(LOG_ITERATOR_READ_SIZE); assertThat(readSizeAtOpen).isNotEqualTo("16384"); final JEBackendCfg cfg = createBackendCfg(); when(cfg.getJEProperty()).thenReturn( new TreeSet<>(Arrays.asList(CLEANER_MIN_AGE + "=5", LOG_ITERATOR_READ_SIZE + "=16384"))); final ConfigChangeResult ccr = storage.applyConfigurationChange(cfg); assertThat(ccr.getResultCode()).isEqualTo(ResultCode.SUCCESS); assertThat(ccr.adminActionRequired()).isTrue(); assertThat(ccr.getMessages()).hasSize(1); assertThat(ccr.getMessages().get(0).toString()).isEqualTo(NOTE_CONFIG_DB_PROPERTY_REQUIRES_RESTART .get(LOG_ITERATOR_READ_SIZE, BACKEND_ID, readSizeAtOpen, "16384").toString()); assertThat(env.getMutableConfig().getConfigParam(CLEANER_MIN_AGE)).isEqualTo("5"); assertThat(env.getConfig().getConfigParam(LOG_ITERATOR_READ_SIZE)).isEqualTo(readSizeAtOpen); } /** * A native property JE takes while it runs goes back to JE's default when it is removed from * je-property: the environment keeps the value it runs with of every parameter it is not handed, * so the removal hands it the default explicitly. */ @Test public void aRemovedNativePropertyGoesBackToJEsDefault() throws Exception { final Environment env = environmentOf(storage); final String minAgeAtOpen = env.getMutableConfig().getConfigParam(CLEANER_MIN_AGE); assertThat(minAgeAtOpen).isNotEqualTo("5"); final JEBackendCfg cfg = createBackendCfg(); when(cfg.getJEProperty()).thenReturn(new TreeSet<>(Arrays.asList(CLEANER_MIN_AGE + "=5"))); assertThat(storage.applyConfigurationChange(cfg).getMessages()).isEmpty(); assertThat(env.getMutableConfig().getConfigParam(CLEANER_MIN_AGE)).isEqualTo("5"); final ConfigChangeResult removed = storage.applyConfigurationChange(createBackendCfg()); assertThat(removed.adminActionRequired()).isFalse(); assertThat(removed.getMessages()).isEmpty(); assertThat(env.getMutableConfig().getConfigParam(CLEANER_MIN_AGE)).isEqualTo(minAgeAtOpen); } /** * A native property whose default JE does not take as a value - the 0 of je.cleaner.readSize * stands for "computed at the open" - cannot be put back while the environment runs: its removal * asks for a restart instead of failing the change, and the environment keeps what it runs with. */ @Test public void aRemovedNativePropertyJECannotPutBackWhileItRunsAsksForARestart() throws Exception { final Environment env = environmentOf(storage); final JEBackendCfg cfg = createBackendCfg(); when(cfg.getJEProperty()).thenReturn(new TreeSet<>(Arrays.asList(CLEANER_READ_SIZE + "=16384"))); assertThat(storage.applyConfigurationChange(cfg).getMessages()).isEmpty(); assertThat(env.getMutableConfig().getConfigParam(CLEANER_READ_SIZE)).isEqualTo("16384"); final ConfigChangeResult removed = storage.applyConfigurationChange(createBackendCfg()); assertThat(removed.getResultCode()).isEqualTo(ResultCode.SUCCESS); assertThat(removed.adminActionRequired()).isTrue(); assertThat(removed.getMessages()).hasSize(1); assertThat(removed.getMessages().get(0).toString()).isEqualTo(NOTE_CONFIG_DB_PROPERTY_REQUIRES_RESTART .get(CLEANER_READ_SIZE, BACKEND_ID, "16384", "0").toString()); assertThat(env.getMutableConfig().getConfigParam(CLEANER_READ_SIZE)).isEqualTo("16384"); } /** * JE takes a change of its off-heap cache size while it runs, but not one which switches the cache * on: switching it on asks for a restart, and the environment keeps running without it and takes * the changes which follow. */ @Test public void aNativePropertyWhichSwitchesTheOffHeapCacheOnAsksForARestart() throws Exception { final Environment env = environmentOf(storage); assertThat(env.getConfig().getConfigParam(MAX_OFF_HEAP_MEMORY)).isEqualTo("0"); final JEBackendCfg cfg = createBackendCfg(); when(cfg.getJEProperty()).thenReturn(newTreeSet(MAX_OFF_HEAP_MEMORY + "=" + MB)); final ConfigChangeResult ccr = storage.applyConfigurationChange(cfg); assertThat(ccr.getResultCode()).isEqualTo(ResultCode.SUCCESS); assertThat(ccr.adminActionRequired()).isTrue(); assertThat(ccr.getMessages()).hasSize(1); assertThat(ccr.getMessages().get(0).toString()).isEqualTo(NOTE_CONFIG_DB_PROPERTY_REQUIRES_RESTART .get(MAX_OFF_HEAP_MEMORY, BACKEND_ID, "0", String.valueOf(MB)).toString()); assertThat(env.getConfig().getConfigParam(MAX_OFF_HEAP_MEMORY)).isEqualTo("0"); final ConfigChangeResult removed = storage.applyConfigurationChange(createBackendCfg()); assertThat(removed.getResultCode()).isEqualTo(ResultCode.SUCCESS); assertThat(removed.getMessages()).isEmpty(); } /** * Nor does JE take a change which switches its off-heap cache off: the removal of the native * property asks for a restart, and the environment keeps its cache and takes the changes which * follow - a change of its size among them. */ @Test public void aRemovedNativePropertyWhichSwitchesTheOffHeapCacheOffAsksForARestart() throws Exception { final JEBackendCfg withOffHeapCache = createBackendCfg(); when(withOffHeapCache.getJEProperty()).thenReturn(newTreeSet(MAX_OFF_HEAP_MEMORY + "=" + MB)); closeAndRemove(storage); storage = new JEStorage(withOffHeapCache, serverContext); storage.open(AccessMode.READ_WRITE); final Environment env = environmentOf(storage); assertThat(env.getConfig().getConfigParam(MAX_OFF_HEAP_MEMORY)).isEqualTo(String.valueOf(MB)); final JEBackendCfg resized = createBackendCfg(); when(resized.getJEProperty()).thenReturn(newTreeSet(MAX_OFF_HEAP_MEMORY + "=" + 2 * MB)); assertThat(storage.applyConfigurationChange(resized).getMessages()).isEmpty(); assertThat(env.getConfig().getConfigParam(MAX_OFF_HEAP_MEMORY)).isEqualTo(String.valueOf(2 * MB)); final ConfigChangeResult removed = storage.applyConfigurationChange(createBackendCfg()); assertThat(removed.getResultCode()).isEqualTo(ResultCode.SUCCESS); assertThat(removed.adminActionRequired()).isTrue(); assertThat(removed.getMessages()).hasSize(1); assertThat(removed.getMessages().get(0).toString()).isEqualTo(NOTE_CONFIG_DB_PROPERTY_REQUIRES_RESTART .get(MAX_OFF_HEAP_MEMORY, BACKEND_ID, String.valueOf(2 * MB), "0").toString()); assertThat(env.getConfig().getConfigParam(MAX_OFF_HEAP_MEMORY)).isEqualTo(String.valueOf(2 * MB)); final JEBackendCfg durabilityChanged = createBackendCfg(); when(durabilityChanged.isDBTxnNoSync()).thenReturn(true); when(durabilityChanged.isDBTxnWriteNoSync()).thenReturn(false); assertThat(storage.applyConfigurationChange(durabilityChanged).getResultCode()).isEqualTo(ResultCode.SUCCESS); assertThat(env.getConfig().getDurability()).isEqualTo(Durability.COMMIT_NO_SYNC); } /** * A change which moves db-directory as well is still applied and reported: the note of the moved * directory, which asks for a restart of its own, does not end the change before the rest of it. * The storage keeps naming the directory the environment runs on, which a backup lists and the * disk monitor watches, and the move is held against that directory: a later change still asks for * the restart, and one which moves back asks for nothing. */ @Test public void aChangeWhichMovesTheDirectoryIsStillAppliedToTheEnvironment() throws Exception { final DiskSpaceMonitor monitor = serverContext.getDiskSpaceMonitor(); final Environment env = environmentOf(storage); final File directoryAtOpen = storage.getDirectory(); final String fileMaxAtOpen = env.getConfig().getConfigParam(LOG_FILE_MAX); final JEBackendCfg cfg = createBackendCfg(); when(cfg.getDBDirectory()).thenReturn(MOVED_DB_DIRECTORY); when(cfg.isDBTxnNoSync()).thenReturn(true); when(cfg.isDBTxnWriteNoSync()).thenReturn(false); when(cfg.getDBLogFileMax()).thenReturn(2 * Long.parseLong(fileMaxAtOpen)); try { final ConfigChangeResult ccr = storage.applyConfigurationChange(cfg); assertThat(ccr.getResultCode()).isEqualTo(ResultCode.SUCCESS); assertThat(ccr.adminActionRequired()).isTrue(); assertThat(ccr.getMessages()).hasSize(2); assertThat(ccr.getMessages().get(0).ordinal()).isEqualTo(NOTE_CONFIG_DB_DIR_REQUIRES_RESTART.ordinal()); assertThat(ccr.getMessages().get(1).ordinal()).isEqualTo(NOTE_CONFIG_DB_PROPERTY_REQUIRES_RESTART.ordinal()); assertThat(env.getConfig().getDurability()).isEqualTo(Durability.COMMIT_NO_SYNC); assertThat(storage.getDirectory()).isEqualTo(directoryAtOpen); assertThat(storage.getFilesToBackup().hasNext()).isTrue(); final ConfigChangeResult again = storage.applyConfigurationChange(cfg); assertThat(again.getMessages()).hasSize(2); assertThat(again.getMessages().get(0).ordinal()).isEqualTo(NOTE_CONFIG_DB_DIR_REQUIRES_RESTART.ordinal()); assertThat(storage.applyConfigurationChange(createBackendCfg()).getMessages()).isEmpty(); final ArgumentCaptor<File> registered = ArgumentCaptor.forClass(File.class); verify(monitor, atLeastOnce()).registerMonitoredDirectory( anyString(), registered.capture(), anyLong(), anyLong(), any(DiskSpaceMonitorHandler.class)); assertThat(registered.getAllValues()).containsOnly(directoryAtOpen); } finally { recursiveDelete(getFileForPath(MOVED_DB_DIRECTORY)); } } /** * A storage closed while a move of its directory waits for the restart deregisters from the disk * monitor the directory it ran on, the one it registered. */ @Test public void aStorageClosedWithAMovePendingDeregistersTheDirectoryItRanOn() throws Exception { final DiskSpaceMonitor monitor = serverContext.getDiskSpaceMonitor(); final File directoryAtOpen = storage.getDirectory(); final JEBackendCfg cfg = createBackendCfg(); when(cfg.getDBDirectory()).thenReturn(MOVED_DB_DIRECTORY); try { assertThat(storage.applyConfigurationChange(cfg).getResultCode()).isEqualTo(ResultCode.SUCCESS); storage.close(); verify(monitor).deregisterMonitoredDirectory(directoryAtOpen, storage); } finally { recursiveDelete(getFileForPath(MOVED_DB_DIRECTORY)); } } /** * A mode changed along with a move is written to the directory moved to alone, the one the * environment runs on keeps its own: a later change which moves back with the same mode still * writes it to the running directory. */ @Test public void aModeChangedAlongWithAMoveReachesTheRunningDirectoryWhenMovedBack() throws Exception { if (!FileSystems.getDefault().supportedFileAttributeViews().contains("posix")) { throw new SkipException("the directory mode is POSIX alone"); } final File directoryAtOpen = storage.getDirectory(); final JEBackendCfg movedOut = createBackendCfg(); when(movedOut.getDBDirectory()).thenReturn(MOVED_DB_DIRECTORY); when(movedOut.getDBDirectoryPermissions()).thenReturn("700"); final JEBackendCfg movedBack = createBackendCfg(); when(movedBack.getDBDirectoryPermissions()).thenReturn("700"); try { assertThat(storage.applyConfigurationChange(movedOut).getResultCode()).isEqualTo(ResultCode.SUCCESS); assertThat(Files.getPosixFilePermissions(directoryAtOpen.toPath())) .isEqualTo(PosixFilePermissions.fromString("rwxr-xr-x")); final ConfigChangeResult ccr = storage.applyConfigurationChange(movedBack); assertThat(ccr.getResultCode()).isEqualTo(ResultCode.SUCCESS); assertThat(ccr.getMessages()).isEmpty(); assertThat(Files.getPosixFilePermissions(directoryAtOpen.toPath())) .isEqualTo(PosixFilePermissions.fromString("rwx------")); } finally { recursiveDelete(getFileForPath(MOVED_DB_DIRECTORY)); } } /** * The open writes the configured mode to the directory it runs on, a mode which came with a move * made while the storage was closed as well: a later change back to the former mode writes that * one to the running directory again. */ @Test public void aModeTheOpenWroteIsWhatALaterChangeIsHeldAgainst() throws Exception { if (!FileSystems.getDefault().supportedFileAttributeViews().contains("posix")) { throw new SkipException("the directory mode is POSIX alone"); } final File directoryAtOpen = storage.getDirectory(); final JEBackendCfg movedOut = createBackendCfg(); when(movedOut.getDBDirectory()).thenReturn(MOVED_DB_DIRECTORY); when(movedOut.getDBDirectoryPermissions()).thenReturn("700"); storage.close(); try { assertThat(storage.applyConfigurationChange(movedOut).getResultCode()).isEqualTo(ResultCode.SUCCESS); storage.open(AccessMode.READ_WRITE); assertThat(Files.getPosixFilePermissions(directoryAtOpen.toPath())) .isEqualTo(PosixFilePermissions.fromString("rwx------")); final ConfigChangeResult ccr = storage.applyConfigurationChange(createBackendCfg()); assertThat(ccr.getResultCode()).isEqualTo(ResultCode.SUCCESS); assertThat(ccr.getMessages()).isEmpty(); assertThat(Files.getPosixFilePermissions(directoryAtOpen.toPath())) .isEqualTo(PosixFilePermissions.fromString("rwxr-xr-x")); } finally { recursiveDelete(getFileForPath(MOVED_DB_DIRECTORY)); } } /** * A directory mode the server itself could not use refuses the change whole: nothing of it is * written to the running directory, and nothing else of it reaches the environment. */ @Test public void aChangeToAnInsaneDirectoryModeIsRefusedWhole() throws Exception { final Environment env = environmentOf(storage); final Durability before = env.getConfig().getDurability(); final JEBackendCfg insaneMode = createBackendCfg(); when(insaneMode.getDBDirectoryPermissions()).thenReturn("500"); when(insaneMode.isDBTxnNoSync()).thenReturn(true); when(insaneMode.isDBTxnWriteNoSync()).thenReturn(false); final ConfigChangeResult ccr = storage.applyConfigurationChange(insaneMode); assertThat(ccr.getResultCode()).isNotEqualTo(ResultCode.SUCCESS); assertThat(ccr.getMessages()).hasSize(1); assertThat(ccr.getMessages().get(0).ordinal()).isEqualTo(ERR_CONFIG_BACKEND_INSANE_MODE.ordinal()); assertThat(env.getConfig().getDurability()).isEqualTo(before); assertThat(storage.getDirectory().canWrite()).isTrue(); } /** * The cache a percentage sizes stays where the open put it as well: the percentage the environment * runs with is handed back to it along with its size, or a change of db-cache-percent would resize * the live cache while the quota still holds what the open reserved. */ @Test public void aCachePercentChangedWhileOpenLeavesTheCacheWhereTheOpenReservedIt() throws Exception { final Environment env = environmentOf(storage); final long cacheAtOpen = env.getMutableConfig().getCacheSize(); final JEBackendCfg cfg = createBackendCfg(); when(cfg.getDBCachePercent()).thenReturn(30); assertThat(storage.applyConfigurationChange(cfg).adminActionRequired()).isTrue(); assertThat(env.getMutableConfig().getCacheSize()).isEqualTo(cacheAtOpen); } /** * A property JE takes at the open alone asks for a restart in the change result as well, not * only in the property's definition: the definition reaches the reference documentation, the * change result reaches the error log of the server which took the change. */ @Test public void aChangeOfWhatJETakesAtTheOpenAloneAsksForARestart() throws Exception { final Environment env = environmentOf(storage); final String fileMaxAtOpen = env.getConfig().getConfigParam(LOG_FILE_MAX); final JEBackendCfg cfg = createBackendCfg(); when(cfg.getDBLogFileMax()).thenReturn(2 * Long.parseLong(fileMaxAtOpen)); final ConfigChangeResult ccr = storage.applyConfigurationChange(cfg); assertThat(ccr.getResultCode()).isEqualTo(ResultCode.SUCCESS); assertThat(ccr.adminActionRequired()).isTrue(); assertThat(ccr.getMessages()).hasSize(1); assertThat(ccr.getMessages().get(0).toString()).isEqualTo(NOTE_CONFIG_DB_PROPERTY_REQUIRES_RESTART .get("db-log-file-max", BACKEND_ID, fileMaxAtOpen, String.valueOf(2 * Long.parseLong(fileMaxAtOpen))) .toString()); assertThat(env.getConfig().getConfigParam(LOG_FILE_MAX)).isEqualTo(fileMaxAtOpen); } /** * The cache is the one thing JE takes while it runs which a change leaves alone: it stays at * the size the open reserved, with the reservation, until the next open - the restart the * change result asks for. What is applied to the environment is applied around it. */ @Test public void aChangeWhileOpenLeavesTheCacheWhereTheOpenReservedIt() throws Exception { closeAndRemove(storage); storage = new JEStorage(createBackendCfg(SMALL_CACHE), serverContext); storage.open(AccessMode.READ_WRITE); final Environment env = environmentOf(storage); assertThat(env.getMutableConfig().getCacheSize()).isEqualTo(SMALL_CACHE); final JEBackendCfg cfg = createBackendCfg(2 * SMALL_CACHE); when(cfg.getDBCleanerMinUtilization()).thenReturn(60); final ConfigChangeResult ccr = storage.applyConfigurationChange(cfg); assertThat(ccr.adminActionRequired()).isTrue(); assertThat(ccr.getMessages()).hasSize(1); assertThat(ccr.getMessages().get(0).ordinal()).isEqualTo(NOTE_CONFIG_DB_CACHE_REQUIRES_RESTART.ordinal()); final EnvironmentMutableConfig running = env.getMutableConfig(); assertThat(running.getCacheSize()).isEqualTo(SMALL_CACHE); assertThat(running.getConfigParam(CLEANER_MIN_UTILIZATION)).isEqualTo("60"); } /** * An import runs the environment on a configuration of its own, which is thrown away with it: * the backend opens again on the configuration as changed once the import is over, so a change * which lands during one is neither applied to the import's environment nor reported against * it - held to the import's configuration, every property the import sets differently would * ask for a restart. */ @Test public void aChangeDuringAnImportLeavesTheImportsEnvironmentAlone() throws Exception { closeAndRemove(storage); storage = new JEStorage(createBackendCfg(), serverContext); final Importer importer = storage.startImport(); try { final Environment env = environmentOf(storage); final JEBackendCfg cfg = createBackendCfg(); when(cfg.getDBCleanerMinUtilization()).thenReturn(60); final ConfigChangeResult ccr = storage.applyConfigurationChange(cfg); assertThat(ccr.getResultCode()).isEqualTo(ResultCode.SUCCESS); assertThat(ccr.adminActionRequired()).isFalse(); assertThat(ccr.getMessages()).isEmpty(); assertThat(env.getMutableConfig().getConfigParam(CLEANER_MIN_UTILIZATION)).isEqualTo("50"); } finally { importer.close(); } } /** * A configuration no environment can be built from is refused before it is written: a * durability which sets both flags - db-txn-write-no-sync is on by default, so setting * db-txn-no-sync alone is one - and a native property JE does not know. Nothing checked either * before, and the backend failed to open on them at its next restart. */ @Test public void aConfigurationNoEnvironmentCanBeBuiltFromIsRefused() throws Exception { final JEBackendCfg bothFlags = createBackendCfg(); when(bothFlags.isDBTxnNoSync()).thenReturn(true); final List<LocalizableMessage> reasons = new ArrayList<>(); assertThat(storage.isConfigurationChangeAcceptable(bothFlags, reasons)).isFalse(); assertThat(reasons).hasSize(1); assertThat(reasons.get(0).toString()).isEqualTo(ERR_CONFIG_JEB_DURABILITY_CONFLICT.get().toString()); final JEBackendCfg unknownProperty = createBackendCfg(); when(unknownProperty.getJEProperty()).thenReturn(new TreeSet<>(Arrays.asList("je.no.such.property=1"))); reasons.clear(); assertThat(storage.isConfigurationChangeAcceptable(unknownProperty, reasons)).isFalse(); assertThat(reasons).hasSize(1); assertThat(reasons.get(0).ordinal()).isEqualTo(ERR_CONFIG_JE_PROPERTY_INVALID.get("", "").ordinal()); reasons.clear(); assertThat(JEStorage.isConfigurationAcceptable(bothFlags, reasons, serverContext)).isFalse(); assertThat(reasons).hasSize(1); assertThat(reasons.get(0).toString()).isEqualTo(ERR_CONFIG_JEB_DURABILITY_CONFLICT.get().toString()); reasons.clear(); assertThat(JEStorage.isConfigurationAcceptable(unknownProperty, reasons, serverContext)).isFalse(); assertThat(reasons).hasSize(1); assertThat(reasons.get(0).ordinal()).isEqualTo(ERR_CONFIG_JE_PROPERTY_INVALID.get("", "").ordinal()); assertThat(storage.isConfigurationChangeAcceptable(createBackendCfg(), new ArrayList<LocalizableMessage>())).isTrue(); } /** A storage which is closed has no environment to apply a change to: the next open takes it. */ @Test public void aChangeWhileClosedTouchesNoEnvironment() throws Exception { storage.close(); final JEBackendCfg cfg = createBackendCfg(); when(cfg.getDBCleanerMinUtilization()).thenReturn(60); final ConfigChangeResult ccr = storage.applyConfigurationChange(cfg); assertThat(ccr.getResultCode()).isEqualTo(ResultCode.SUCCESS); assertThat(ccr.adminActionRequired()).isFalse(); assertThat(ccr.getMessages()).isEmpty(); } /** The environment of the given storage, which it keeps to itself. */ private static Environment environmentOf(JEStorage storage) throws Exception { final Field env = JEStorage.class.getDeclaredField("env"); env.setAccessible(true); return (Environment) env.get(storage); } /** A storage whose directory is a regular file, which no open of it can use. */ private JEStorage blockedStorage(JEBackendCfg cfg) throws Exception { opendj-server-legacy/src/test/java/org/opends/server/backends/pdb/PDBStorageTest.java
@@ -22,8 +22,13 @@ import static org.opends.server.util.StaticUtils.*; import static org.forgerock.opendj.ldap.ByteString.*; import static org.opends.messages.BackendMessages.*; import static org.opends.messages.ConfigMessages.ERR_CONFIG_BACKEND_INSANE_MODE; import java.io.File; import java.lang.reflect.Field; import java.nio.file.FileSystems; import java.nio.file.Files; import java.nio.file.attribute.PosixFilePermissions; import java.util.ArrayList; import java.util.List; import java.util.concurrent.atomic.AtomicInteger; @@ -33,8 +38,10 @@ import org.forgerock.opendj.config.server.ConfigException; import org.forgerock.opendj.ldap.ByteString; import org.forgerock.opendj.ldap.ResultCode; import org.mockito.ArgumentCaptor; import org.opends.server.DirectoryServerTestCase; import org.opends.server.TestCaseUtils; import org.opends.server.api.DiskSpaceMonitorHandler; import org.forgerock.opendj.server.config.server.PDBBackendCfg; import org.opends.server.backends.pluggable.spi.AccessMode; import org.opends.server.backends.pluggable.spi.ReadOperation; @@ -48,12 +55,14 @@ import org.opends.server.core.MemoryQuota; import org.opends.server.core.ServerContext; import org.opends.server.extensions.DiskSpaceMonitor; import org.testng.SkipException; import org.testng.annotations.AfterMethod; import org.testng.annotations.BeforeClass; import org.testng.annotations.BeforeMethod; import org.testng.annotations.Test; import com.persistit.Exchange; import com.persistit.Persistit; import com.persistit.exception.RollbackException; public class PDBStorageTest extends DirectoryServerTestCase @@ -866,6 +875,225 @@ return createBackendCfg(0L); } /** * The checkpoint interval is set on the PersistIt configuration when the database opens, and * PersistIt takes no configuration once one is set: a change of it asks for a restart, naming * the interval the database runs with and the one now configured, and the database keeps the * former. The property's definition says so as well now, which reaches the reference * documentation; the change result reaches the error log of the server which took the change. */ @Test public void aCheckpointIntervalChangedWhileOpenAsksForARestart() throws Exception { final long intervalAtOpen = createBackendCfg().getDBCheckpointerWakeupInterval(); assertThat(checkpointIntervalOf(storage)).isEqualTo(intervalAtOpen); final PDBBackendCfg cfg = createBackendCfg(); when(cfg.getDBCheckpointerWakeupInterval()).thenReturn(4 * intervalAtOpen); final ConfigChangeResult ccr = storage.applyConfigurationChange(cfg); assertThat(ccr.getResultCode()).isEqualTo(ResultCode.SUCCESS); assertThat(ccr.adminActionRequired()).isTrue(); assertThat(ccr.getMessages()).hasSize(1); assertThat(ccr.getMessages().get(0).toString()).isEqualTo(NOTE_CONFIG_DB_PROPERTY_REQUIRES_RESTART .get("db-checkpointer-wakeup-interval", "PDBStorageTest", intervalAtOpen, 4 * intervalAtOpen) .toString()); assertThat(checkpointIntervalOf(storage)).isEqualTo(intervalAtOpen); // held against the interval the database runs with, not against the configuration the last change left: // a later change which leaves the interval where the first one put it still asks for the restart, assertThat(storage.applyConfigurationChange(cfg).adminActionRequired()).isTrue(); // and one which puts it back to what the database runs with asks for nothing assertThat(storage.applyConfigurationChange(createBackendCfg()).getMessages()).isEmpty(); } /** * A change which moves db-directory as well is still reported whole: the note of the moved * directory, which asks for a restart of its own, does not end the change before the rest of it. * The storage keeps naming the directory it runs on, which a backup lists and the disk monitor * watches, and the move is held against that directory: a later change still asks for the restart, * and one which moves back asks for nothing. */ @Test public void aChangeWhichMovesTheDirectoryStillReportsTheRest() throws Exception { final DiskSpaceMonitor monitor = serverContext.getDiskSpaceMonitor(); final File directoryAtOpen = storage.getDirectory(); final long intervalAtOpen = createBackendCfg().getDBCheckpointerWakeupInterval(); final PDBBackendCfg cfg = createBackendCfg(); when(cfg.getDBDirectory()).thenReturn("PDBStorageTest-moved"); when(cfg.getDBCheckpointerWakeupInterval()).thenReturn(4 * intervalAtOpen); try { final ConfigChangeResult ccr = storage.applyConfigurationChange(cfg); assertThat(ccr.getResultCode()).isEqualTo(ResultCode.SUCCESS); assertThat(ccr.adminActionRequired()).isTrue(); assertThat(ccr.getMessages()).hasSize(2); assertThat(ccr.getMessages().get(0).ordinal()).isEqualTo(NOTE_CONFIG_DB_DIR_REQUIRES_RESTART.ordinal()); assertThat(ccr.getMessages().get(1).ordinal()).isEqualTo(NOTE_CONFIG_DB_PROPERTY_REQUIRES_RESTART.ordinal()); assertThat(storage.getDirectory()).isEqualTo(directoryAtOpen); final ConfigChangeResult again = storage.applyConfigurationChange(cfg); assertThat(again.getMessages()).hasSize(2); assertThat(again.getMessages().get(0).ordinal()).isEqualTo(NOTE_CONFIG_DB_DIR_REQUIRES_RESTART.ordinal()); assertThat(storage.applyConfigurationChange(createBackendCfg()).getMessages()).isEmpty(); final ArgumentCaptor<File> registered = ArgumentCaptor.forClass(File.class); verify(monitor, atLeastOnce()).registerMonitoredDirectory( anyString(), registered.capture(), anyLong(), anyLong(), any(DiskSpaceMonitorHandler.class)); assertThat(registered.getAllValues()).containsOnly(directoryAtOpen); } finally { recursiveDelete(getFileForPath("PDBStorageTest-moved")); } } /** * A storage closed while a move of its directory waits for the restart deregisters from the disk * monitor the directory it ran on, the one it registered. */ @Test public void aStorageClosedWithAMovePendingDeregistersTheDirectoryItRanOn() throws Exception { final DiskSpaceMonitor monitor = serverContext.getDiskSpaceMonitor(); final File directoryAtOpen = storage.getDirectory(); final PDBBackendCfg cfg = createBackendCfg(); when(cfg.getDBDirectory()).thenReturn("PDBStorageTest-moved"); try { assertThat(storage.applyConfigurationChange(cfg).getResultCode()).isEqualTo(ResultCode.SUCCESS); storage.close(); verify(monitor).deregisterMonitoredDirectory(directoryAtOpen, storage); } finally { recursiveDelete(getFileForPath("PDBStorageTest-moved")); } } /** * A mode changed along with a move is written to the directory moved to alone, the one the * database runs on keeps its own: a later change which moves back with the same mode still writes * it to the running directory. */ @Test public void aModeChangedAlongWithAMoveReachesTheRunningDirectoryWhenMovedBack() throws Exception { if (!FileSystems.getDefault().supportedFileAttributeViews().contains("posix")) { throw new SkipException("the directory mode is POSIX alone"); } final File directoryAtOpen = storage.getDirectory(); final PDBBackendCfg movedOut = createBackendCfg(); when(movedOut.getDBDirectory()).thenReturn("PDBStorageTest-moved"); when(movedOut.getDBDirectoryPermissions()).thenReturn("700"); final PDBBackendCfg movedBack = createBackendCfg(); when(movedBack.getDBDirectoryPermissions()).thenReturn("700"); try { assertThat(storage.applyConfigurationChange(movedOut).getResultCode()).isEqualTo(ResultCode.SUCCESS); assertThat(Files.getPosixFilePermissions(directoryAtOpen.toPath())) .isEqualTo(PosixFilePermissions.fromString("rwxr-xr-x")); final ConfigChangeResult ccr = storage.applyConfigurationChange(movedBack); assertThat(ccr.getResultCode()).isEqualTo(ResultCode.SUCCESS); assertThat(ccr.getMessages()).isEmpty(); assertThat(Files.getPosixFilePermissions(directoryAtOpen.toPath())) .isEqualTo(PosixFilePermissions.fromString("rwx------")); } finally { recursiveDelete(getFileForPath("PDBStorageTest-moved")); } } /** * The open writes the configured mode to the directory it runs on, a mode which came with a move * made while the storage was closed as well: a later change back to the former mode writes that * one to the running directory again. */ @Test public void aModeTheOpenWroteIsWhatALaterChangeIsHeldAgainst() throws Exception { if (!FileSystems.getDefault().supportedFileAttributeViews().contains("posix")) { throw new SkipException("the directory mode is POSIX alone"); } final File directoryAtOpen = storage.getDirectory(); final PDBBackendCfg movedOut = createBackendCfg(); when(movedOut.getDBDirectory()).thenReturn("PDBStorageTest-moved"); when(movedOut.getDBDirectoryPermissions()).thenReturn("700"); storage.close(); try { assertThat(storage.applyConfigurationChange(movedOut).getResultCode()).isEqualTo(ResultCode.SUCCESS); storage.open(AccessMode.READ_WRITE); assertThat(Files.getPosixFilePermissions(directoryAtOpen.toPath())) .isEqualTo(PosixFilePermissions.fromString("rwx------")); final ConfigChangeResult ccr = storage.applyConfigurationChange(createBackendCfg()); assertThat(ccr.getResultCode()).isEqualTo(ResultCode.SUCCESS); assertThat(ccr.getMessages()).isEmpty(); assertThat(Files.getPosixFilePermissions(directoryAtOpen.toPath())) .isEqualTo(PosixFilePermissions.fromString("rwxr-xr-x")); } finally { recursiveDelete(getFileForPath("PDBStorageTest-moved")); } } /** * A directory mode the server itself could not use refuses the change whole: nothing of it is * written to the running directory, and the rest of it is not reported as waiting for a restart. */ @Test public void aChangeToAnInsaneDirectoryModeIsRefusedWhole() throws Exception { final long intervalAtOpen = createBackendCfg().getDBCheckpointerWakeupInterval(); final PDBBackendCfg insaneMode = createBackendCfg(); when(insaneMode.getDBDirectoryPermissions()).thenReturn("500"); when(insaneMode.getDBCheckpointerWakeupInterval()).thenReturn(4 * intervalAtOpen); final ConfigChangeResult ccr = storage.applyConfigurationChange(insaneMode); assertThat(ccr.getResultCode()).isNotEqualTo(ResultCode.SUCCESS); assertThat(ccr.getMessages()).hasSize(1); assertThat(ccr.getMessages().get(0).ordinal()).isEqualTo(ERR_CONFIG_BACKEND_INSANE_MODE.ordinal()); assertThat(storage.getDirectory().canWrite()).isTrue(); } /** A storage which is closed has no database to hold a change against: the next open takes it. */ @Test public void aCheckpointIntervalChangedWhileClosedAsksForNothing() throws Exception { storage.close(); final long intervalAtOpen = createBackendCfg().getDBCheckpointerWakeupInterval(); final PDBBackendCfg cfg = createBackendCfg(); when(cfg.getDBCheckpointerWakeupInterval()).thenReturn(4 * intervalAtOpen); final ConfigChangeResult ccr = storage.applyConfigurationChange(cfg); assertThat(ccr.getResultCode()).isEqualTo(ResultCode.SUCCESS); assertThat(ccr.adminActionRequired()).isFalse(); assertThat(ccr.getMessages()).isEmpty(); } /** The checkpoint interval of the database the given storage runs, in seconds. */ private static long checkpointIntervalOf(PDBStorage storage) throws Exception { final Field db = PDBStorage.class.getDeclaredField("db"); db.setAccessible(true); return ((Persistit) db.get(storage)).getConfiguration().getCheckpointInterval(); } /** A configuration whose cache is the given size in bytes, or a fifth of the quota when it is zero. */ private static PDBBackendCfg createBackendCfg(long cacheSize) {