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  1. Hadoop HDFS
  2. HDFS-14942

Change Log Level to debug in JournalNodeSyncer#syncWithJournalAtIndex

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    Details

    • Type: Improvement
    • Status: Resolved
    • Priority: Minor
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 3.3.0, 3.1.4, 3.2.2
    • Component/s: None
    • Labels:
      None
    • Hadoop Flags:
      Reviewed

      Description

      when hadoop 2.x upgrades to hadoop 3.x,  InterQJournalProtocol is newly added,so  throw Unknown protocol. 

      the newly InterQJournalProtocol is used to sychronize past log segments to JNs that missed them.  And that an error occurs does not affect normal service. I think it should not be a ERROR log,and that log a warn log is more reasonable.

       private void syncWithJournalAtIndex(int index) {
        ...
          GetEditLogManifestResponseProto editLogManifest;
          try {
            editLogManifest = jnProxy.getEditLogManifestFromJournal(jid,
                nameServiceId, 0, false);
          } catch (IOException e) {
            LOG.error("Could not sync with Journal at " +
                otherJNProxies.get(journalNodeIndexForSync), e);
            return;
          }
      
      2019-10-30,15:11:17,388 ERROR org.apache.hadoop.hdfs.qjournal.server.JournalNodeSyncer: Could not sync with Journal at mos1-hadoop-prc-ct17.ksru/10.85.3.59:111002019-10-30,15:11:17,388 ERROR org.apache.hadoop.hdfs.qjournal.server.JournalNodeSyncer: Could not sync with Journal at mos1-hadoop-prc-ct17.ksru/10.85.3.59:11100org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.security.authorize.AuthorizationException): Unknown protocol: org.apache.hadoop.hdfs.qjournal.protocol.InterQJournalProtocol
      at org.apache.hadoop.ipc.Client.getRpcResponse(Client.java:1565)
      at org.apache.hadoop.ipc.Client.call(Client.java:1511)
      at org.apache.hadoop.ipc.Client.call(Client.java:1421)
      at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:228)
      at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:116)
      at com.sun.proxy.$Proxy16.getEditLogManifestFromJournal(Unknown Source)
      at org.apache.hadoop.hdfs.qjournal.protocolPB.InterQJournalProtocolTranslatorPB.getEditLogManifestFromJournal(InterQJournalProtocolTranslatorPB.java:75)
      at org.apache.hadoop.hdfs.qjournal.server.JournalNodeSyncer.syncWithJournalAtIndex(JournalNodeSyncer.java:250)
      at org.apache.hadoop.hdfs.qjournal.server.JournalNodeSyncer.syncJournals(JournalNodeSyncer.java:226)
      at org.apache.hadoop.hdfs.qjournal.server.JournalNodeSyncer.lambda$startSyncJournalsDaemon$0(JournalNodeSyncer.java:186)
      at java.lang.Thread.run(Thread.java:748)
      

        Attachments

        1. HDFS-14942.001.patch
          1 kB
          Lisheng Sun
        2. HDFS-14942.002.patch
          1 kB
          Lisheng Sun
        3. HDFS-14942.003.patch
          1 kB
          Lisheng Sun
        4. HDFS-14942.004.patch
          1 kB
          Lisheng Sun

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              • Assignee:
                leosun08 Lisheng Sun
                Reporter:
                leosun08 Lisheng Sun
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                Dates

                • Created:
                  Updated:
                  Resolved: