private boolean extractVersion(PutAllEntryData entry) {

      VersionTag versionTag = entry.versionTag;
      // version tag can be null if only keys are sent in InitialImage.
      if (versionTag != null) {
        add(versionTag);
        // Add entry without version tag in entries array.
        entry.versionTag = null;
        return true;
      }

      return false;
    }
change event id into fake event id The algorithm is to change the threadid into
bucketid*MAX_THREAD_PER_CLIENT+oldthreadid. So from the log, we can derive the original
thread id.

@return wether current event id is fake or not new bucket id
geode-core/src/main/java/org/apache/geode/internal/cache/DistributedPutAllOperation.java