Apply SleepyCat recommendations regarding JE default tunings. The max log s...

ludovicp

05.40.2010 66088ec1b70555e734f274d0b4d5e0229c5205f6

Apply SleepyCat recommendations regarding JE default tunings.
The max log size is decreased to 10MB and checkpointer to 20MB.
Also increases the number of cleaners to match the default number of workers.
These new settings are helping with reducing the etimes on write operations

 opendj-sdk/opends/resource/config/config.ldif

@@ -193,10 +193,10 @@
ds-cfg-db-cleaner-min-utilization: 50
ds-cfg-db-evictor-lru-only: true
ds-cfg-db-evictor-nodes-per-scan: 10
ds-cfg-db-log-file-max: 100 megabytes
ds-cfg-db-log-file-max: 10 megabytes
ds-cfg-db-logging-file-handler-on: true
ds-cfg-db-logging-level: CONFIG
ds-cfg-db-checkpointer-bytes-interval: 100 megabytes
ds-cfg-db-checkpointer-bytes-interval: 20 megabytes
ds-cfg-db-checkpointer-wakeup-interval: 30 seconds

dn: cn=Index,ds-cfg-backend-id=userRoot,cn=Backends,cn=config

 opendj-sdk/opends/src/admin/defn/org/opends/server/admin/std/LocalDBBackendConfiguration.xml

@@ -570,7 +570,7 @@
    </adm:requires-admin-action>
    <adm:default-behavior>
      <adm:defined>
        <adm:value>100mb</adm:value>
        <adm:value>10mb</adm:value>
      </adm:defined>
    </adm:default-behavior>
    <adm:syntax>
@@ -653,7 +653,7 @@
    </adm:requires-admin-action>
    <adm:default-behavior>
      <adm:defined>
        <adm:value>100mb</adm:value>
        <adm:value>20mb</adm:value>
      </adm:defined>
    </adm:default-behavior>
    <adm:syntax>

 opendj-sdk/opends/src/server/org/opends/server/backends/jeb/ConfigurableEnvironment.java

@@ -318,9 +318,11 @@

        if (attrName.equals(ATTR_NUM_CLEANER_THREADS) && value == null)
        {
          // Automatically choose based on the number of processors.
          // Automatically choose based on the number of processors. We will use
          // similar heuristics to those used to define the default number of
          // worker threads.
          int cpus = Runtime.getRuntime().availableProcessors();
          value = Integer.valueOf(Math.max(2, cpus / 2));
          value = Integer.valueOf(Math.max(24, cpus * 2));

          Message message =
              INFO_ERGONOMIC_SIZING_OF_JE_CLEANER_THREADS.get(String
@@ -335,7 +337,7 @@
          // We'll assume that the user has also allowed automatic
          // configuration of cleaners and workers.
          int cpus = Runtime.getRuntime().availableProcessors();
          int cleaners = Math.max(2, cpus / 2);
          int cleaners = Math.max(24, cpus * 2);
          int workers = Math.max(24, cpus * 2);
          BigInteger tmp = BigInteger.valueOf((cleaners + workers) * 2);
          value = tmp.nextProbablePrime();