Scan of metadata table failed because tablet closed
---------------------------------------------------
Key: ACCUMULO-331
URL: https://issues.apache.org/jira/browse/ACCUMULO-331
Project: Accumulo
Issue Type: Bug
Components: tserver
Environment: Running random walk test on 10 node cluster
Reporter: Keith Turner
Assignee: Keith Turner
Fix For: 1.4.0
The security random walk test failed to drop a table.
{noformat}
19 05:56:04,122 [randomwalk.Framework] ERROR: Error during random walk
java.lang.Exception: Error running node Security.xml
at
org.apache.accumulo.server.test.randomwalk.Module.visit(Module.java:253)
at
org.apache.accumulo.server.test.randomwalk.Framework.run(Framework.java:61)
at
org.apache.accumulo.server.test.randomwalk.Framework.main(Framework.java:114)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.accumulo.start.Main$1.run(Main.java:89)
at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.Exception: Error running node security.TableOp
at
org.apache.accumulo.server.test.randomwalk.Module.visit(Module.java:253)
at
org.apache.accumulo.server.test.randomwalk.Module.visit(Module.java:249)
... 8 more
Caused by: org.apache.accumulo.core.client.AccumuloException: Internal error
processing waitForTableOperation
at
org.apache.accumulo.core.client.admin.TableOperationsImpl.doTableOperation(TableOperationsImpl.java:293)
at
org.apache.accumulo.core.client.admin.TableOperationsImpl.doTableOperation(TableOperationsImpl.java:261)
at
org.apache.accumulo.core.client.admin.TableOperationsImpl.delete(TableOperationsImpl.java:508)
at
org.apache.accumulo.server.test.randomwalk.security.DropTable.dropTable(DropTable.java:66)
at
org.apache.accumulo.server.test.randomwalk.security.TableOp.visit(TableOp.java:204)
at
org.apache.accumulo.server.test.randomwalk.Module.visit(Module.java:249)
... 9 more
Caused by: org.apache.thrift.TApplicationException: Internal error processing
waitForTableOperation
at
org.apache.thrift.TApplicationException.read(TApplicationException.java:108)
at
org.apache.accumulo.core.master.thrift.MasterClientService$Client.recv_waitForTableOperation(MasterClientService.java:684)
at
org.apache.accumulo.core.master.thrift.MasterClientService$Client.waitForTableOperation(MasterClientService.java:665)
at sun.reflect.GeneratedMethodAccessor19.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at cloudtrace.instrument.thrift.TraceWrap$2.invoke(TraceWrap.java:83)
at $Proxy1.waitForTableOperation(Unknown Source)
at
org.apache.accumulo.core.client.admin.TableOperationsImpl.waitForTableOperation(TableOperationsImpl.java:233)
at
org.apache.accumulo.core.client.admin.TableOperationsImpl.doTableOperation(TableOperationsImpl.java:275)
... 14 more
{noformat}
Looking in the master logs see the following indicating a scan failed while
trying to delete the table.
{noformat}
19 05:56:04,098 [thrift.MasterClientService$Processor] ERROR: Internal error
processing waitForTableOperation
java.lang.RuntimeException:
org.apache.accumulo.core.client.impl.AccumuloServerException: Error on server
xxx.xxx.xxx.xxx:9997
at
org.apache.accumulo.core.client.impl.TabletServerBatchReaderIterator.hasNext(TabletServerBatchReaderIterator.java:188)
at
org.apache.accumulo.server.master.state.MetaDataTableScanner.hasNext(MetaDataTableScanner.java:97)
at
org.apache.accumulo.server.master.tableOps.CleanUp.isReady(DeleteTable.java:94)
at
org.apache.accumulo.server.master.tableOps.CleanUp.isReady(DeleteTable.java:55)
at
org.apache.accumulo.server.master.tableOps.TraceRepo.isReady(TraceRepo.java:50)
at
org.apache.accumulo.server.fate.Fate$TransactionRunner.run(Fate.java:62)
at
org.apache.accumulo.core.util.LoggingRunnable.run(LoggingRunnable.java:34)
at java.lang.Thread.run(Thread.java:662)
Caused by: org.apache.accumulo.core.client.impl.AccumuloServerException: Error
on server xxx.xxx.xxx.xxx:9997
at
org.apache.accumulo.core.client.impl.TabletServerBatchReaderIterator.doLookup(TabletServerBatchReaderIterator.java:579)
at
org.apache.accumulo.core.client.impl.TabletServerBatchReaderIterator$QueryTask.run(TabletServerBatchReaderIterator.java:335)
at cloudtrace.instrument.TraceRunnable.run(TraceRunnable.java:47)
at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
... 1 more
Caused by: org.apache.thrift.TApplicationException: Internal error processing
startMultiScan
at
org.apache.thrift.TApplicationException.read(TApplicationException.java:108)
at
org.apache.accumulo.core.tabletserver.thrift.TabletClientService$Client.recv_startMultiScan(TabletClientService.java:298)
at
org.apache.accumulo.core.tabletserver.thrift.TabletClientService$Client.startMultiScan(TabletClientService.java:274)
at sun.reflect.GeneratedMethodAccessor9.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at cloudtrace.instrument.thrift.TraceWrap$2.invoke(TraceWrap.java:83)
at $Proxy4.startMultiScan(Unknown Source)
at
org.apache.accumulo.core.client.impl.TabletServerBatchReaderIterator.doLookup(TabletServerBatchReaderIterator.java:539)
... 5 more
{noformat}
Looking on the tablet server where the scan failed, see the following
{noformat}
19 05:56:04,062 [tabletserver.Tablet] DEBUG: initiateClose(saveState=true
queueMinC=false disableWrites=false) !0;~;!0<
19 05:56:04,062 [tabletserver.Tablet] DEBUG: completeClose(saveState=true
completeClose=true) !0;~;!0<
19 05:56:04,063 [problems.ProblemReports] DEBUG: Filing problem report !0
FILE_READ /accumulo/tables/!0/table_info/F0002xng.rf
19 05:56:04,072 [tabletserver.Tablet] TABLET_HIST: !0;~;!0< closed
19 05:56:04,072 [tabletserver.TabletServer] DEBUG: Unassigning
!0;~;!0<@(null,192.168.117.13:9997[134d7425fc5940d],null)
19 05:56:04,073 [tabletserver.TabletServer] WARN : lookup failed for tablet
!0;~;!0<
java.io.EOFException
at java.io.DataInputStream.readByte(DataInputStream.java:250)
at
org.apache.accumulo.core.file.rfile.RelativeKey.fastSkip(RelativeKey.java:249)
at
org.apache.accumulo.core.file.rfile.RFile$LocalityGroupReader._seek(RFile.java:677)
at
org.apache.accumulo.core.file.rfile.RFile$LocalityGroupReader.seek(RFile.java:614)
at
org.apache.accumulo.core.iterators.WrappingIterator.seek(WrappingIterator.java:92)
at
org.apache.accumulo.core.iterators.SkippingIterator.seek(SkippingIterator.java:37)
at
org.apache.accumulo.core.iterators.system.ColumnFamilySkippingIterator.seek(ColumnFamilySkippingIterator.java:125)
at
org.apache.accumulo.core.file.rfile.RFile$Reader.seek(RFile.java:1020)
at
org.apache.accumulo.server.problems.ProblemReportingIterator.seek(ProblemReportingIterator.java:94)
at
org.apache.accumulo.core.iterators.system.MultiIterator.seek(MultiIterator.java:105)
at
org.apache.accumulo.core.iterators.WrappingIterator.seek(WrappingIterator.java:92)
at
org.apache.accumulo.core.iterators.system.DeletingIterator.seek(DeletingIterator.java:67)
at
org.apache.accumulo.core.iterators.WrappingIterator.seek(WrappingIterator.java:92)
at org.apache.accumulo.core.iterators.Filter.seek(Filter.java:64)
at
org.apache.accumulo.core.iterators.WrappingIterator.seek(WrappingIterator.java:92)
at org.apache.accumulo.core.iterators.Filter.seek(Filter.java:64)
at
org.apache.accumulo.core.iterators.WrappingIterator.seek(WrappingIterator.java:92)
at
org.apache.accumulo.core.iterators.user.VersioningIterator.seek(VersioningIterator.java:89)
at
org.apache.accumulo.core.iterators.user.WholeRowIterator.seek(WholeRowIterator.java:240)
at
org.apache.accumulo.core.iterators.WrappingIterator.seek(WrappingIterator.java:92)
at
org.apache.accumulo.core.iterators.SkippingIterator.seek(SkippingIterator.java:37)
at
org.apache.accumulo.core.iterators.system.SourceSwitchingIterator.readNext(SourceSwitchingIterator.java:116)
at
org.apache.accumulo.core.iterators.system.SourceSwitchingIterator.seek(SourceSwitchingIterator.java:168)
at
org.apache.accumulo.server.tabletserver.Tablet.lookup(Tablet.java:1607)
at
org.apache.accumulo.server.tabletserver.Tablet.lookup(Tablet.java:1710)
at
org.apache.accumulo.server.tabletserver.TabletServer$ThriftClientHandler$LookupTask.run(TabletServer.java:988)
at cloudtrace.instrument.TraceRunnable.run(TraceRunnable.java:47)
at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
19 05:56:04,120 [tabletserver.TabletServer] INFO : Loading tablet !0;~;!0<
19 05:56:04,128 [tabletserver.Tablet] TABLET_HIST: !0;~;!0< opened
{noformat}
The metadata tablet were being frequently loaded and unloaded as descried in
ACCUMULO-329 when this happened.
The file in question was major compacted away on another tablet server. Shortly
after this.
{noformat}
19 05:57:54,187 [tabletserver.Tablet] DEBUG: Starting MajC !0;~;!0<
[/table_info/A0002xm4.rf, /table_info/C0002xz3.rf, /table_info/C0002y0d.rf,
/table_info/F0002xng.rf, /table_info/M0002xzv.rf, /table_info/M0002y6z.rf] -->
/table_info/A0002y0e.rf_tmp
19 05:57:54,309 [tabletserver.Tablet] TABLET_HIST: !0;~;!0< MajC
[/table_info/A0002xm4.rf, /table_info/C0002xz3.rf, /table_info/C0002y0d.rf,
/table_info/F0002xng.rf, /table_info/M0002xzv.rf, /table_info/M0002y6z.rf] -->
/table_info/A0002y0e.rf
{noformat}
{noformat}
19 06:10:29,546 [gc.SimpleGarbageCollector] DEBUG: Deleting
/accumulo/tables/!0/table_info/F0002xng.rf
{noformat}
The file was garbage collected later. The GC and Majc show that the file
existed while the EOF happened. So this is probably either a bug in RFile fast
skip or a bug related to the tablet closing. Probably related to the close w/
the close temporal relationship.
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