[ 
https://issues.apache.org/jira/browse/ACCUMULO-1940?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Josh Elser updated ACCUMULO-1940:
---------------------------------

    Description: 
Found during CI run with agitation.

Got the first two error messages 5 times (assuming in a retry on failure block):

{noformat}
Failed to do close consistency check for tablet c;79d0ab;7870a
        java.lang.RuntimeException: Data file in !METADATA differ from in 
memory data c;79d0ab;7870a  {/t-0005h1j/A0005n8k.rf=797350457 19198312, 
/t-0005h1j/C0005skm.rf=798078368 19322025, /t-0005h1j/C0005tet.rf=89783168 
2196349, /t-0005h1j/C0005u20.rf=90979448 2227972, 
/t-0005h1j/F0005u0v.rf=23410023 582233, /t-0005h1j/F0005u2p.rf=21958551 547159, 
/t-0005h1j/F0005u3g.rf=14395121 358893}  {/t-0005h1j/A0005n8k.rf=797350457 
19198312, /t-0005h1j/C0005skm.rf=798078368 19322025, 
/t-0005h1j/C0005tet.rf=89783168 2196349, /t-0005h1j/C0005u20.rf=90979448 
2227972, /t-0005h1j/F0005u2p.rf=21958551 547159, 
/t-0005h1j/F0005u3g.rf=14395121 358893}
                at 
org.apache.accumulo.server.tabletserver.Tablet.closeConsistencyCheck(Tablet.java:2847)
                at 
org.apache.accumulo.server.tabletserver.Tablet.completeClose(Tablet.java:2780)
                at 
org.apache.accumulo.server.tabletserver.Tablet.close(Tablet.java:2658)
                at 
org.apache.accumulo.server.tabletserver.TabletServer$UnloadTabletHandler.run(TabletServer.java:2357)
                at 
org.apache.accumulo.core.util.LoggingRunnable.run(LoggingRunnable.java:34)
                at 
org.apache.accumulo.trace.instrument.TraceRunnable.run(TraceRunnable.java:47)
                at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
                at 
java.util.concurrent.ThreadPoolExecutor$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:744)
{noformat}

Then, we logged that we failed the consistency check

{noformat}
Consistency check fails, retrying java.lang.RuntimeException: Failed to do 
close consistency check for tablet c;79d0ab;7870a
{noformat}

In the end, we gave up and closed it anyways.

{noformat}
Tablet closed consistency check has failed for c;79d0ab;7870a giving up and 
closing
{noformat}

Before all of this happened, we tried to bring this tablet online after a 
failure on a new tserver. During the minc as part of the recovery process, we 
failed to get the lease on the .rf_tmp file we tried to create. We failed this 
a couple of times, but eventually got the tmp file we needed and the recovery 
process completed and we could bring the tablet online. The difference between 
the in-memory version and the !METADATA version was this one flushed rfile that 
we created during this recovery process.

The problem eventually fixed itself because the tablet was migrated to a 
different server and we just took what was (correctly) in the !METADATA table.

There still is an unknown issue of how we missed the flush RFile in the 
DatafileManager's copy.

  was:
Found during CI run with agitation.

Got the first two error messages 5 times (assuming in a retry on failure block):

{noformat}
Failed to do close consistency check for tablet c;79d0ab;7870a
        java.lang.RuntimeException: Data file in !METADATA differ from in 
memory data c;79d0ab;7870a  {/t-0005h1j/A0005n8k.rf=797350457 19198312, 
/t-0005h1j/C0005skm.rf=798078368 19322025, /t-0005h1j/C0005tet.rf=89783168 
2196349, /t-0005h1j/C0005u20.rf=90979448 2227972, 
/t-0005h1j/F0005u0v.rf=23410023 582233, /t-0005h1j/F0005u2p.rf=21958551 547159, 
/t-0005h1j/F0005u3g.rf=14395121 358893}  {/t-0005h1j/A0005n8k.rf=797350457 
19198312, /t-0005h1j/C0005skm.rf=798078368 19322025, 
/t-0005h1j/C0005tet.rf=89783168 2196349, /t-0005h1j/C0005u20.rf=90979448 
2227972, /t-0005h1j/F0005u2p.rf=21958551 547159, 
/t-0005h1j/F0005u3g.rf=14395121 358893}
                at 
org.apache.accumulo.server.tabletserver.Tablet.closeConsistencyCheck(Tablet.java:2847)
                at 
org.apache.accumulo.server.tabletserver.Tablet.completeClose(Tablet.java:2780)
                at 
org.apache.accumulo.server.tabletserver.Tablet.close(Tablet.java:2658)
                at 
org.apache.accumulo.server.tabletserver.TabletServer$UnloadTabletHandler.run(TabletServer.java:2357)
                at 
org.apache.accumulo.core.util.LoggingRunnable.run(LoggingRunnable.java:34)
                at 
org.apache.accumulo.trace.instrument.TraceRunnable.run(TraceRunnable.java:47)
                at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
                at 
java.util.concurrent.ThreadPoolExecutor$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:744)
{noformat}

Then, we logged that we failed the consistency check

{noformat}
Consistency check fails, retrying java.lang.RuntimeException: Failed to do 
close consistency check for tablet c;79d0ab;7870a
{noformat}

In the end, we gave up and closed it anyways.

{noformat}
Tablet closed consistency check has failed for c;79d0ab;7870a giving up and 
closing
{noformat}

This left me with some table problems, but everything appears to be working 
fine at the moment. Not sure if something was lost silently (until I shut down 
and run a verify), but it certainly looks ominous.


> Data file in !METADATA differs from in memory data
> --------------------------------------------------
>
>                 Key: ACCUMULO-1940
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-1940
>             Project: Accumulo
>          Issue Type: Bug
>          Components: test
>    Affects Versions: 1.5.0
>            Reporter: Josh Elser
>
> Found during CI run with agitation.
> Got the first two error messages 5 times (assuming in a retry on failure 
> block):
> {noformat}
> Failed to do close consistency check for tablet c;79d0ab;7870a
>       java.lang.RuntimeException: Data file in !METADATA differ from in 
> memory data c;79d0ab;7870a  {/t-0005h1j/A0005n8k.rf=797350457 19198312, 
> /t-0005h1j/C0005skm.rf=798078368 19322025, /t-0005h1j/C0005tet.rf=89783168 
> 2196349, /t-0005h1j/C0005u20.rf=90979448 2227972, 
> /t-0005h1j/F0005u0v.rf=23410023 582233, /t-0005h1j/F0005u2p.rf=21958551 
> 547159, /t-0005h1j/F0005u3g.rf=14395121 358893}  
> {/t-0005h1j/A0005n8k.rf=797350457 19198312, /t-0005h1j/C0005skm.rf=798078368 
> 19322025, /t-0005h1j/C0005tet.rf=89783168 2196349, 
> /t-0005h1j/C0005u20.rf=90979448 2227972, /t-0005h1j/F0005u2p.rf=21958551 
> 547159, /t-0005h1j/F0005u3g.rf=14395121 358893}
>               at 
> org.apache.accumulo.server.tabletserver.Tablet.closeConsistencyCheck(Tablet.java:2847)
>               at 
> org.apache.accumulo.server.tabletserver.Tablet.completeClose(Tablet.java:2780)
>               at 
> org.apache.accumulo.server.tabletserver.Tablet.close(Tablet.java:2658)
>               at 
> org.apache.accumulo.server.tabletserver.TabletServer$UnloadTabletHandler.run(TabletServer.java:2357)
>               at 
> org.apache.accumulo.core.util.LoggingRunnable.run(LoggingRunnable.java:34)
>               at 
> org.apache.accumulo.trace.instrument.TraceRunnable.run(TraceRunnable.java:47)
>               at 
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
>               at 
> java.util.concurrent.ThreadPoolExecutor$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:744)
> {noformat}
> Then, we logged that we failed the consistency check
> {noformat}
> Consistency check fails, retrying java.lang.RuntimeException: Failed to do 
> close consistency check for tablet c;79d0ab;7870a
> {noformat}
> In the end, we gave up and closed it anyways.
> {noformat}
> Tablet closed consistency check has failed for c;79d0ab;7870a giving up and 
> closing
> {noformat}
> Before all of this happened, we tried to bring this tablet online after a 
> failure on a new tserver. During the minc as part of the recovery process, we 
> failed to get the lease on the .rf_tmp file we tried to create. We failed 
> this a couple of times, but eventually got the tmp file we needed and the 
> recovery process completed and we could bring the tablet online. The 
> difference between the in-memory version and the !METADATA version was this 
> one flushed rfile that we created during this recovery process.
> The problem eventually fixed itself because the tablet was migrated to a 
> different server and we just took what was (correctly) in the !METADATA table.
> There still is an unknown issue of how we missed the flush RFile in the 
> DatafileManager's copy.



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