[HDFS-8296] BlockManager.getUnderReplicatedBlocksCount() is not giving correct count if namenode in safe mode.

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Not A Problem
• Affects Version/s: 2.6.0
• Component/s: namenode
• Labels: BB2015-05-RFC
• Assignee: Surendra Singh Lilhore
• Reporter: Surendra Singh Lilhore
• Created: 30/Apr/15 07:12
• Updated: 17/Dec/15 04:36
• Resolved: 17/Dec/15 04:36

Description

underReplicatedBlocksCount update by the updateState() API.

 void updateState() {
    pendingReplicationBlocksCount = pendingReplications.size();
    underReplicatedBlocksCount = neededReplications.size();
    corruptReplicaBlocksCount = corruptReplicas.size();
  }
 

but this will not call when NN in safe mode. This is happening because "computeDatanodeWork()" we will return 0 if NN in safe mode

  int computeDatanodeWork() {
   .........
    if (namesystem.isInSafeMode()) {
      return 0;
    }
    ....................
    ....................
    this.updateState();
    ....................
    ....................
  }