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From "Ted Yu (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-16672) Add option for bulk load to copy hfile(s) instead of renaming
Date Wed, 21 Sep 2016 21:42:20 GMT
Ted Yu created HBASE-16672:
------------------------------

             Summary: Add option for bulk load to copy hfile(s) instead of renaming
                 Key: HBASE-16672
                 URL: https://issues.apache.org/jira/browse/HBASE-16672
             Project: HBase
          Issue Type: Improvement
            Reporter: Ted Yu


While working on HBASE-14417, I found that taking full backup of table which received bulk
loaded hfiles and later gone through incremental restore failed with the following exception:
{code}
2016-09-21 11:33:06,340 WARN  [member: '10.22.9.171,53915,1474482617015' subprocedure-pool7-thread-1]
snapshot.RegionServerSnapshotManager$SnapshotSubprocedurePool(347): Got Exception in SnapshotSubprocedurePool
java.util.concurrent.ExecutionException: java.io.FileNotFoundException: File does not exist:
hdfs://localhost:53901/user/tyu/test-data/48928d44-9757-4923-af29-60288fb8a553/data/ns1/test-1474482646700/
                       d1a93d05a75c596533ba4331a378fb3a/f/3dfb3a37cf6b4b519769b3116d8ab35a_SeqId_205_
  at java.util.concurrent.FutureTask.report(FutureTask.java:122)
  at java.util.concurrent.FutureTask.get(FutureTask.java:192)
  at org.apache.hadoop.hbase.regionserver.snapshot.RegionServerSnapshotManager$SnapshotSubprocedurePool.waitForOutstandingTasks(RegionServerSnapshotManager.java:323)
  at org.apache.hadoop.hbase.regionserver.snapshot.FlushSnapshotSubprocedure.flushSnapshot(FlushSnapshotSubprocedure.java:139)
  at org.apache.hadoop.hbase.regionserver.snapshot.FlushSnapshotSubprocedure.insideBarrier(FlushSnapshotSubprocedure.java:159)
{code}
The cause was that the bulk loaded hfiles were renamed during bulk load step of incremental
restore.

To support incrementally restoring to multiple destinations, this issue adds option which
would always copy hfile(s) during bulk load.



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