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From "binlijin (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-8706) Some improvement in snapshot
Date Fri, 07 Jun 2013 09:26:21 GMT
binlijin created HBASE-8706:
-------------------------------

             Summary: Some improvement in snapshot
                 Key: HBASE-8706
                 URL: https://issues.apache.org/jira/browse/HBASE-8706
             Project: HBase
          Issue Type: Bug
          Components: snapshots
    Affects Versions: 0.95.0, 0.94.8
            Reporter: binlijin


(1)timeout for Procedure can not be configured.
{code}
Procedure's timeout
ProcedureCoordinator
  final static long TIMEOUT_MILLIS_DEFAULT = 60000;
   createProcedure(ForeignExceptionDispatcher fed, String procName, byte[] procArgs,
      List<String> expectedMembers) {
    // build the procedure
    return new Procedure(this, fed, WAKE_MILLIS_DEFAULT, TIMEOUT_MILLIS_DEFAULT,
        procName, procArgs, expectedMembers);
  }

RegionServerSnapshotManager:
  /** Conf key for max time to keep threads in snapshot request pool waiting */
  public static final String SNAPSHOT_TIMEOUT_MILLIS_KEY = "hbase.snapshot.region.timeout";
  /** Keep threads alive in request pool for max of 60 seconds */
  public static final long SNAPSHOT_TIMEOUT_MILLIS_DEFAULT = 60000;

  public Subprocedure buildSubprocedure(SnapshotDescription snapshot) {
    long timeoutMillis = conf.getLong(SNAPSHOT_TIMEOUT_MILLIS_KEY,
        SNAPSHOT_TIMEOUT_MILLIS_DEFAULT);
    case FLUSH:
      SnapshotSubprocedurePool taskManager =
        new SnapshotSubprocedurePool(rss.getServerName().toString(), conf);
  }
{code}

(2)TakeSnapshotHandler
after snapshotRegions we should call monitor.rethrowException(); to check if there is exception
and if there is we can skip the verifySnapshot

(3)too much error message when error happened in some place.


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