0.94.6 is really old. There have been quite a few bug fixes / improvements to snapshot feature since its release.
The error happens when SnapshotDescription corresponding to kiji.prod.table.site.DI... was not found by ProcedureCoordinator. bq. does the timeout necessarily mean that the restore failed or could it be still running asynchronously Can you check region server logs around the time TimeoutException was thrown to see which server was the straggler ? Thanks On Thu, Sep 24, 2015 at 5:13 PM, Alexandre Normand < alexandre.norm...@gmail.com> wrote: > Hey, > We're trying to restore a snapshot of a relatively big table (20TB) using > hbase 0.94.6-cdh4.5.0 and we're getting timeouts doing so. We increased the > timeout configurations(hbase.snapshot.master.timeoutMillis, > hbase.snapshot.region.timeout, hbase.snapshot.master.timeout.millis) to 10 > minutes but we're still experiencing the timeouts. Here's the error and > stack trace (table name obfuscated just because): > > ERROR: org.apache.hadoop.hbase.snapshot.HBaseSnapshotException: > org.apache.hadoop.hbase.snapshot.HBaseSnapshotException: Snapshot { > ss*****-1443136710408 table=******** type=FLUSH } had an error. > kiji.prod.table.site.DI-1019-1443136710408 not found in proclist [] > at > org.apache.hadoop.hbase.master.snapshot.SnapshotManager.isSnapshotDone(SnapshotManager.java:360) > at > org.apache.hadoop.hbase.master.HMaster.isSnapshotDone(HMaster.java:2075) > at sun.reflect.GeneratedMethodAccessor36.invoke(Unknown Source) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) > at java.lang.reflect.Method.invoke(Method.java:606) > at > org.apache.hadoop.hbase.ipc.WritableRpcEngine$Server.call(WritableRpcEngine.java:320) > at > org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:1428) > Caused by: org.apache.hadoop.hbase.errorhandling.TimeoutException via > timer-java.util.Timer@8ad0d5c > :org.apache.hadoop.hbase.errorhandling.TimeoutException: > Timeout elapsed! Source:Timeout caused Foreign Exception > Start:1443136713121, End:1443137313121, diff:600000, max:600000 ms > at > org.apache.hadoop.hbase.errorhandling.ForeignExceptionDispatcher.rethrowException(ForeignExceptionDispatcher.java:85) > at > org.apache.hadoop.hbase.master.snapshot.TakeSnapshotHandler.rethrowExceptionIfFailed(TakeSnapshotHandler.java:285) > at > org.apache.hadoop.hbase.master.snapshot.SnapshotManager.isSnapshotDone(SnapshotManager.java:350) > ... 6 more > Caused by: org.apache.hadoop.hbase.errorhandling.TimeoutException: > Timeout elapsed! Source:Timeout caused Foreign Exception > Start:1443136713121, End:1443137313121, diff:600000, max:600000 ms > at > org.apache.hadoop.hbase.errorhandling.TimeoutExceptionInjector$1.run(TimeoutExceptionInjector.java:68) > at java.util.TimerThread.mainLoop(Timer.java:555) > at java.util.TimerThread.run(Timer.java:505) > > > We could increase the timeout again but we'd like to solicit some feedback > before trying that. First, does the timeout necessarily mean that the > restore failed or could it be still running asynchronously and eventually > completing? What's involved in the snapshot restore that could be useful in > informing what timeout value would be appropriate for this operation? > > Thanks! > > -- > Alex >