[HDFS-9532] Detailed exception info is lost in reportTo method of ErrorReportAction and ReportBadBlockAction

• Type: Improvement
• Status: Resolved
• Priority: Trivial
• Resolution: Fixed
• Fix Version/s: 2.8.0, 3.0.0-alpha1
• Component/s: datanode
• Labels: supportability
• Hadoop Flags: Reviewed
• Assignee: Yongjun Zhang
• Reporter: Yongjun Zhang
• Created: 09/Dec/15 18:55
• Updated: 30/Aug/16 01:22
• Resolved: 12/Dec/15 02:37

Description

See code below

    try {
      bpNamenode.reportBadBlocks(locatedBlock);
    } catch (RemoteException re) {
      DataNode.LOG.info("reportBadBlock encountered RemoteException for "
          + "block:  " + block , re);
    } catch (IOException e) {
      throw new BPServiceActorActionException("Failed to report bad block "
          + block + " to namenode: ");
    }
  }

When IOException e is thrown, the information of e is not reported back to caller.