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From "ASF subversion and git services (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (ACCUMULO-2438) deleting all table rows caused tablet load failure
Date Fri, 07 Mar 2014 16:28:45 GMT

    [ https://issues.apache.org/jira/browse/ACCUMULO-2438?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13924023#comment-13924023
] 

ASF subversion and git services commented on ACCUMULO-2438:
-----------------------------------------------------------

Commit 21ab9724f47a036a08a0683096ed4896ba79e24d in accumulo's branch refs/heads/1.6.0-SNAPSHOT
from [~ecn]
[ https://git-wip-us.apache.org/repos/asf?p=accumulo.git;h=21ab972 ]

ACCUMULO-2438 TabletGroupWatchers need to watch separate sets of tables for merges


> deleting all table rows caused tablet load failure
> --------------------------------------------------
>
>                 Key: ACCUMULO-2438
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-2438
>             Project: Accumulo
>          Issue Type: Sub-task
>          Components: master
>         Environment: nightly single-node test
>            Reporter: Eric Newton
>            Assignee: Eric Newton
>            Priority: Critical
>              Labels: 16_qa_bug
>             Fix For: 1.6.0
>
>
> testTrace in ConditionalWriterIT failed:
> {noformat}
> java.lang.Exception: test timed out after 60000 milliseconds
> 	at java.lang.Thread.sleep(Native Method)
> 	at org.apache.accumulo.core.util.UtilWaitThread.sleep(UtilWaitThread.java:26)
> 	at org.apache.accumulo.core.client.impl.ThriftScanner.scan(ThriftScanner.java:240)
> 	at org.apache.accumulo.core.client.impl.ScannerIterator$Reader.run(ScannerIterator.java:84)
> 	at org.apache.accumulo.core.client.impl.ScannerIterator.hasNext(ScannerIterator.java:177)
> 	at org.apache.accumulo.core.trace.TraceDump.printTrace(TraceDump.java:133)
> 	at org.apache.accumulo.test.ConditionalWriterIT.testTrace(ConditionalWriterIT.java:1231)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> 	at java.lang.reflect.Method.invoke(Method.java:622)
> 	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)
> 	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
> 	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
> 	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
> 	at org.junit.internal.runners.statements.FailOnTimeout$StatementThread.run(FailOnTimeout.java:74)
> {noformat}
> Examining the logs, it seems like the client was having a hard time locating the trace
table (table id 9):
> {noformat}
> 2014-03-07 04:33:40,445 [impl.ThriftScanner] TRACE: Failed to locate tablet for table
: 9 row : 9dd07d1bd8b9bc0d
> ...
> 2014-03-07 04:33:40,551 [impl.ThriftScanner] TRACE: Failed to locate tablet for table
: 9 row : 9dd07d1bd8b9bc0d
> {noformat}
> Examining the master logs, I see the trace table being created, assigned, and hosted.
> This test deletes everything in the trace table before tracing an operation:
> {noformat}
>     conn.tableOperations().deleteRows("trace", null, null);
> {noformat}
> The master takes the table offline and re-writes the metadata table information so that
it no longer has any data.
> The master then attempts to put the tablet online, but the operation fails:
> {noformat}
> 2014-03-07 04:33:40,079 [master.Master] ERROR: host1:47630 reports assignment failed
for tablet 9<<
> {noformat}
> The tablet server gives the real problem:
> {noformat}
> 2014-03-07 04:33:40,074 [tserver.TabletServer] WARN : exception trying to assign tablet
9<< file:////local/disk1/jenkins/workspace/accumulo16/test/target/mini-tests/org.apache.accumulo.test.functional.SimpleMacIT/1394184783304_4048/accumulo/tables/9/default_tablet
> java.lang.IllegalArgumentException: Time type unknown : ^@0
>         at org.apache.accumulo.server.tablets.TabletTime.getInstance(TabletTime.java:67)
>         at org.apache.accumulo.tserver.Tablet.<init>(Tablet.java:1296)
>         at org.apache.accumulo.tserver.Tablet.<init>(Tablet.java:1211)
>         at org.apache.accumulo.tserver.Tablet.<init>(Tablet.java:1067)
>         at org.apache.accumulo.tserver.Tablet.<init>(Tablet.java:1056)
>         at org.apache.accumulo.tserver.TabletServer$AssignmentHandler.run(TabletServer.java:2911)
>         at org.apache.accumulo.core.util.LoggingRunnable.run(LoggingRunnable.java:34)
>         at org.apache.accumulo.trace.instrument.TraceRunnable.run(TraceRunnable.java:47)
>         at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1146)
>         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
>         at org.apache.accumulo.trace.instrument.TraceRunnable.run(TraceRunnable.java:47)
>         at org.apache.accumulo.core.util.LoggingRunnable.run(LoggingRunnable.java:34)
>         at java.lang.Thread.run(Thread.java:701)
> {noformat}
> Tablet time should always be "L" or "M".



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