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https://issues.apache.org/jira/browse/ASTERIXDB-1534?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15386127#comment-15386127
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Abdullah Alamoudi commented on ASTERIXDB-1534:
----------------------------------------------
can we have more information?
1. configuration files.
2. data info
3. any other environment info
I have seen this a few times before and I don't have an exact explanation for
it. but if we can reproduce it, we should take this chance to fix it.
> NPE when restart the server
> ---------------------------
>
> Key: ASTERIXDB-1534
> URL: https://issues.apache.org/jira/browse/ASTERIXDB-1534
> Project: Apache AsterixDB
> Issue Type: Bug
> Components: Storage
> Environment: master
> commit a89fae64ac21fb8eefde79f79d2dbe1a0e54c364
> Date: Wed Jul 6 07:58:55 2016 -0700
> Reporter: Jianfeng Jia
> Assignee: Michael Blow
>
> When I stop and start the cluster by managix, I hit the following error:
> {code}
> ERROR:
> /rhome/jianfeng/managix/home/asterix/cloudberry/.nfs00000000021805340000118e
> (No such file or directory)
> j
> {code}
> And no nc and cc got started.
> After a while, I ran the managix start again, the cluster restart
> successfully.
> But one of the dataset can't answer any queries. The simplest select query
> {code}
> for $t in dataset twitter.ds_tweet limit 5 return $t
> {code}
> will give me the following error:
> {code}
> Caused by: org.apache.hyracks.api.exceptions.HyracksDataException:
> org.apache.hyracks.api.exceptions.HyracksDataException:
> java.util.concurrent.ExecutionException:
> org.apache.hyracks.api.exceptions.HyracksDataException:
> java.lang.NullPointerException
> at
> org.apache.hyracks.control.common.utils.ExceptionUtils.setNodeIds(ExceptionUtils.java:45)
> at org.apache.hyracks.control.nc.Task.run(Task.java:319)
> ... 3 more
> Caused by: org.apache.hyracks.api.exceptions.HyracksDataException:
> java.util.concurrent.ExecutionException:
> org.apache.hyracks.api.exceptions.HyracksDataException:
> java.lang.NullPointerException
> at
> org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:218)
> at
> org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.initialize(SuperActivityOperatorNodePushable.java:83)
> at org.apache.hyracks.control.nc.Task.run(Task.java:263)
> ... 3 more
> Caused by: java.util.concurrent.ExecutionException:
> org.apache.hyracks.api.exceptions.HyracksDataException:
> java.lang.NullPointerException
> at java.util.concurrent.FutureTask.report(FutureTask.java:122)
> at java.util.concurrent.FutureTask.get(FutureTask.java:192)
> at
> org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.runInParallel(SuperActivityOperatorNodePushable.java:212)
> ... 5 more
> Caused by: org.apache.hyracks.api.exceptions.HyracksDataException:
> java.lang.NullPointerException
> at
> org.apache.hyracks.storage.am.common.dataflow.IndexSearchOperatorNodePushable.nextFrame(IndexSearchOperatorNodePushable.java:187)
> at
> org.apache.hyracks.dataflow.common.comm.io.AbstractFrameAppender.write(AbstractFrameAppender.java:93)
> at
> org.apache.hyracks.algebricks.runtime.operators.base.AbstractOneInputOneOutputOneFramePushRuntime.flushAndReset(AbstractOneInputOneOutputOneFramePushRuntime.java:63)
> at
> org.apache.hyracks.algebricks.runtime.operators.base.AbstractOneInputOneOutputOneFramePushRuntime.flushIfNotFailed(AbstractOneInputOneOutputOneFramePushRuntime.java:69)
> at
> org.apache.hyracks.algebricks.runtime.operators.base.AbstractOneInputOneOutputOneFramePushRuntime.close(AbstractOneInputOneOutputOneFramePushRuntime.java:55)
> at
> org.apache.hyracks.algebricks.runtime.operators.std.AssignRuntimeFactory$1.close(AssignRuntimeFactory.java:122)
> at
> org.apache.hyracks.algebricks.runtime.operators.std.EmptyTupleSourceRuntimeFactory$1.close(EmptyTupleSourceRuntimeFactory.java:60)
> at
> org.apache.hyracks.algebricks.runtime.operators.meta.AlgebricksMetaOperatorDescriptor$1.initialize(AlgebricksMetaOperatorDescriptor.java:116)
> at
> org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable.lambda$initialize$0(SuperActivityOperatorNodePushable.java:83)
> at
> org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable$$Lambda$1/350086994.runAction(Unknown
> Source)
> at
> org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable$1.call(SuperActivityOperatorNodePushable.java:205)
> at
> org.apache.hyracks.api.rewriter.runtime.SuperActivityOperatorNodePushable$1.call(SuperActivityOperatorNodePushable.java:202)
> at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> ... 3 more
> Caused by: java.lang.NullPointerException
> at
> org.apache.hyracks.storage.am.common.frames.TreeIndexNSMFrame.getTupleCount(TreeIndexNSMFrame.java:287)
> at
> org.apache.hyracks.storage.am.btree.impls.BTreeRangeSearchCursor.hasNext(BTreeRangeSearchCursor.java:141)
> at
> org.apache.hyracks.storage.am.lsm.invertedindex.ondisk.PartitionedOnDiskInvertedIndex.openInvertedListPartitionCursors(PartitionedOnDiskInvertedIndex.java:98)
> at
> org.apache.hyracks.storage.am.lsm.invertedindex.search.PartitionedTOccurrenceSearcher.search(PartitionedTOccurrenceSearcher.java:116)
> at
> org.apache.hyracks.storage.am.lsm.invertedindex.ondisk.OnDiskInvertedIndex$OnDiskInvertedIndexAccessor.search(OnDiskInvertedIndex.java:519)
> at
> org.apache.hyracks.storage.am.lsm.invertedindex.impls.LSMInvertedIndexSearchCursor.hasNext(LSMInvertedIndexSearchCursor.java:143)
> at
> org.apache.hyracks.storage.am.common.dataflow.IndexSearchOperatorNodePushable.writeSearchResults(IndexSearchOperatorNodePushable.java:149)
> at
> org.apache.hyracks.storage.am.common.dataflow.IndexSearchOperatorNodePushable.nextFrame(IndexSearchOperatorNodePushable.java:184)
> ... 15 more
>
> {code}
> One hint is that this dataset was connecting with a feed before the restart.
> The other dataset that didn't have feed connection seems working fine.
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