OPENDJ-2133 changelogDb purge cannot keep up with sustained modification load

Jean-Noel Rouvignac

11.56.2015 eb04697622586d9b25b7205360a966ea1d345b9b

OPENDJ-2133 changelogDb purge cannot keep up with sustained modification load

Code review: Matthew Swift

ChangelogBackend.java:
In notifyChangeNumberEntryAdded(), exit immediately when there are no persistent searches. This avoids creating an entry that will be immediately discarded.

 opendj-server-legacy/src/main/java/org/opends/server/backends/ChangelogBackend.java

@@ -462,7 +462,8 @@
  public void notifyChangeNumberEntryAdded(DN baseDN, long changeNumber, String cookieString, UpdateMsg updateMsg)
      throws ChangelogException
  {
    if (!(updateMsg instanceof LDAPUpdateMsg))
    if (!(updateMsg instanceof LDAPUpdateMsg)
        || changeNumberBasedPersistentSearches.isEmpty())
    {
      return;
    }