[HBASE-17943] The in-memory flush size is different for each CompactingMemStore located in the same region

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.0.0
• Fix Version/s: 2.0.0
• Component/s: regionserver
• Hadoop Flags: Reviewed
• Assignee: Chia-Ping Tsai
• Reporter: Chia-Ping Tsai
• Created: 20/Apr/17 03:43
• Updated: 01/Aug/18 06:20
• Resolved: 22/Apr/17 12:51

Description

  private void initInmemoryFlushSize(Configuration conf) {
    long memstoreFlushSize = getRegionServices().getMemstoreFlushSize();
    int numStores = getRegionServices().getNumStores();
    if (numStores <= 1) {
      // Family number might also be zero in some of our unit test case
      numStores = 1;
    }
    inmemoryFlushSize = memstoreFlushSize / numStores;

We initialize each store in parallel, so the return value from getNumStores() may be different for each CompactingMemStore.