question Re: Caused by: org.apache.lucene.store.AlreadyClosedException: Underlying file changed by an external force in Support Questions

Caused by: org.apache.lucene.store.AlreadyClosedException: Underlying file changed by an external force

ajignacio — Fri, 18 Nov 2022 11:11:43 GMT

Hi All

Good Day! Just want to share our problem after we upgrade our nifi version from 1.9.2 to 1.16.2. all processor running fine but after ingesting a data, We got an error on the nifi bulletin.

Upon checking on the logs this the error.

Thank you

Re: Caused by: org.apache.lucene.store.AlreadyClosedException: Underlying file changed by an external force

ajignacio — Thu, 01 Dec 2022 10:05:45 GMT

Hello Anyone,

We still encountered this error, anyone can help us on this.

Thanks

Re: Caused by: org.apache.lucene.store.AlreadyClosedException: Underlying file changed by an external force

MattWho — Mon, 05 Dec 2022 18:56:47 GMT

@ajignacio That was a big jump from version 1.9.x to 1.16.x of NiFi.
NiFi's data provenance stores, for a configurable amount of time, information about NiFi FlowFiles as they traverse the various processors in your dataflow(s). Over the releases of NiFi both improvements and new implementations of provenance have been introduced.

The original version of provenance was org.apache.nifi.provenance.PersistentProvenanceRepository which has since been deprecated in favor of a better performing provider class org.apache.nifi.provenance.WriteAheadProvenanceRepository which is the new default.

The following properties from the nifi.properties file are used to configure the provenance repository:

nifi.provenance.repository.implementation=org.apache.nifi.provenance.WriteAheadProvenanceRepository nifi.provenance.repository.directory.default=./provenance_repository nifi.provenance.repository.max.storage.time=30 days nifi.provenance.repository.max.storage.size=10 GB. (use to be 1 GB) nifi.provenance.repository.rollover.size=100 MB nifi.provenance.repository.query.threads=2 nifi.provenance.repository.index.threads=2 nifi.provenance.repository.compress.on.rollover=true nifi.provenance.repository.always.sync=false nifi.provenance.repository.indexed.fields=EventType, FlowFileUUID, Filename, ProcessorID nifi.provenance.repository.indexed.attributes= nifi.provenance.repository.index.shard.size=100 MB nifi.provenance.repository.max.attribute.length=65536 nifi.provenance.repository.concurrent.merge.threads=2 nifi.provenance.repository.warm.cache.frequency=

For details on these properties, here is Apache NiFi documentation section:
https://nifi.apache.org/docs/nifi-docs/html/administration-guide.html#provenance-repository

The good news is that data provenance retention has no direct relationship to the active FlowFiles traversing your dataflow(s) currently. This means that you can shutdown your NiFi, purge the contents of the current <path to>/provenance_repository directory, adjust the configuration properties as you want, and then restart your NiFi. NiFi will build a new provenance repository on startup. Considering that NiFi only provides limited configurable space (1GB original default to 10GB current default) and age (30 days) as the defaults, you would not be losing much if you were to reset.

I am also concerned that the path in the error suggests you also created your original provenance_repository within a subdirectory of the FlowFile_repository which I would not recommend. I would strongly suggest not writing the contents of any one of the four NiFi repositories within each other.

Considering the flowfile_repository and content_repository are the two most important repositories for tracking your actively being processed FlowFiles in your dataflow(s), I suggest these each be on their own path and reside on dedicated disk backed by RAID to avoid data loss in the event of a disk failure.

If you found that the provided solution(s) assisted you with your query, please take a moment to login and click Accept as Solution below each response that helped.

Thank you,

Matt

Re: Caused by: org.apache.lucene.store.AlreadyClosedException: Underlying file changed by an external force

ajignacio — Mon, 30 Jan 2023 08:39:47 GMT

Hello @MattWho

Thanks to help us, I do create a new folder for provenance and flowfile, We shutdown 1st the nifi services then we create a new folder then we edit the nifi.properties changed both path of provenance and flowfile to the new path. but we still encountered the error.

Thanks,

Re: Caused by: org.apache.lucene.store.AlreadyClosedException: Underlying file changed by an external force

MattWho — Mon, 30 Jan 2023 13:56:38 GMT

@ajignacio

1. When you created the Provenance repository, did you move the old provenance data there or start new with an empty directory? If the provenance repo is corrupt, you can start fresh by deleting everything in the provenance_repository directory. Provenance data does not impact your active FlowFiles queued with your NiFi dataflows, so no data loss there. All you lose is the lineage history that eventually ages off anyway.
2. What Java JDK version is your NiFi Using?
3. Can you share the complete stack trace from the nifi-app.log?
4. Any other errors/warns in the app.log (Memory or open file limit exceptions, any other warns or exceptions related to provenance, etc...)?

Thank you,

Matt

Re: Caused by: org.apache.lucene.store.AlreadyClosedException: Underlying file changed by an external force

ajignacio — Thu, 02 Feb 2023 15:04:43 GMT

Hello @MattWho ,
Thanks for the assistance!! Please find the below info regarding the error

1: I have started new with an empty directory for both flowfile and provenance repository.. Please note I have not deleted the content of older provinance repository directory
Please find the directory path below
For ex:
/repository/nifi/nifi-1.16.2/provenanceRepository
/repository/nifi/nifi-1.16.2/Flowfilerepository

2: Java version used by nifi:
openjdk version "1.8.0_332"
OpenJDK Runtime Environment (build 1.8.0_332-b09)
OpenJDK 64-Bit Server VM (build 25.332-b09, mixed mode)

4: No other error other then the one which i am sharing in the app log below

3: Please find the app log below:

2023-02-02 08:57:59,845 ERROR [Index Provenance Events-2] o.a.n.p.index.lucene.EventIndexTask Failed to index Provenance Events
org.apache.lucene.store.AlreadyClosedException: this IndexWriter is closed
at org.apache.lucene.index.IndexWriter.ensureOpen(IndexWriter.java:877)
at org.apache.lucene.index.IndexWriter.ensureOpen(IndexWriter.java:891)
at org.apache.lucene.index.IndexWriter.updateDocuments(IndexWriter.java:1468)
at org.apache.lucene.index.IndexWriter.addDocuments(IndexWriter.java:1444)
at org.apache.nifi.provenance.lucene.LuceneEventIndexWriter.index(LuceneEventIndexWriter.java:70)
at org.apache.nifi.provenance.index.lucene.EventIndexTask.index(EventIndexTask.java:202)
at org.apache.nifi.provenance.index.lucene.EventIndexTask.run(EventIndexTask.java:113)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:750)
Caused by: org.apache.lucene.store.AlreadyClosedException: Underlying file changed by an external force at 2023-01-27T15:15:54Z, (lock=NativeFSLock(path=/flowfile_repo/nifi/nifi-1.16.2/provenance_repository_clr/lucene-8-index-1674832554761/write.lock,impl=sun.nio.ch.FileLockImpl[0:9223372036854775807 exclusive valid],creationTime=2023-01-27T15:15:54.997915Z))
at org.apache.lucene.store.NativeFSLockFactory$NativeFSLock.ensureValid(NativeFSLockFactory.java:191)
at org.apache.lucene.store.LockValidatingDirectoryWrapper.createOutput(LockValidatingDirectoryWrapper.java:43)
at org.apache.lucene.store.TrackingDirectoryWrapper.createOutput(TrackingDirectoryWrapper.java:43)
at org.apache.lucene.codecs.lucene80.Lucene80DocValuesConsumer.<init>(Lucene80DocValuesConsumer.java:79)
at org.apache.lucene.codecs.lucene80.Lucene80DocValuesFormat.fieldsConsumer(Lucene80DocValuesFormat.java:161)
at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$FieldsWriter.getInstance(PerFieldDocValuesFormat.java:227)
at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$FieldsWriter.getInstance(PerFieldDocValuesFormat.java:163)
at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$FieldsWriter.addNumericField(PerFieldDocValuesFormat.java:109)
at org.apache.lucene.index.NumericDocValuesWriter.flush(NumericDocValuesWriter.java:108)
at org.apache.lucene.index.DefaultIndexingChain.writeDocValues(DefaultIndexingChain.java:345)
at org.apache.lucene.index.DefaultIndexingChain.flush(DefaultIndexingChain.java:225)
at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:350)
at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:476)
at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:656)
at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:3365)
at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:3771)
at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:3729)
at org.apache.nifi.provenance.lucene.LuceneEventIndexWriter.commit(LuceneEventIndexWriter.java:101)
at org.apache.nifi.provenance.index.lucene.EventIndexTask.commit(EventIndexTask.java:253)
at org.apache.nifi.provenance.index.lucene.EventIndexTask.index(EventIndexTask.java:232)
... 6 common frames omitted
2023-02-02 08:57:59,845 ERROR [Index Provenance Events-1] o.a.n.p.index.lucene.EventIndexTask Failed to index Provenance Events
org.apache.lucene.store.AlreadyClosedException: this IndexWriter is closed
at org.apache.lucene.index.IndexWriter.ensureOpen(IndexWriter.java:877)
at org.apache.lucene.index.IndexWriter.ensureOpen(IndexWriter.java:891)
at org.apache.lucene.index.IndexWriter.updateDocuments(IndexWriter.java:1468)
at org.apache.lucene.index.IndexWriter.addDocuments(IndexWriter.java:1444)
at org.apache.nifi.provenance.lucene.LuceneEventIndexWriter.index(LuceneEventIndexWriter.java:70)
at org.apache.nifi.provenance.index.lucene.EventIndexTask.index(EventIndexTask.java:202)
at org.apache.nifi.provenance.index.lucene.EventIndexTask.run(EventIndexTask.java:113)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:750)
Caused by: org.apache.lucene.store.AlreadyClosedException: Underlying file changed by an external force at 2023-01-27T15:15:54Z, (lock=NativeFSLock(path=/flowfile_repo/nifi/nifi-1.16.2/provenance_repository_clr/lucene-8-index-1674832554761/write.lock,impl=sun.nio.ch.FileLockImpl[0:9223372036854775807 exclusive valid],creationTime=2023-01-27T15:15:54.997915Z))
at org.apache.lucene.store.NativeFSLockFactory$NativeFSLock.ensureValid(NativeFSLockFactory.java:191)
at org.apache.lucene.store.LockValidatingDirectoryWrapper.createOutput(LockValidatingDirectoryWrapper.java:43)
at org.apache.lucene.store.TrackingDirectoryWrapper.createOutput(TrackingDirectoryWrapper.java:43)
at org.apache.lucene.codecs.lucene80.Lucene80DocValuesConsumer.<init>(Lucene80DocValuesConsumer.java:79)
at org.apache.lucene.codecs.lucene80.Lucene80DocValuesFormat.fieldsConsumer(Lucene80DocValuesFormat.java:161)
at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$FieldsWriter.getInstance(PerFieldDocValuesFormat.java:227)
at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$FieldsWriter.getInstance(PerFieldDocValuesFormat.java:163)
at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$FieldsWriter.addNumericField(PerFieldDocValuesFormat.java:109)
at org.apache.lucene.index.NumericDocValuesWriter.flush(NumericDocValuesWriter.java:108)
at org.apache.lucene.index.DefaultIndexingChain.writeDocValues(DefaultIndexingChain.java:345)
at org.apache.lucene.index.DefaultIndexingChain.flush(DefaultIndexingChain.java:225)
at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:350)
at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:476)
at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:656)
at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:3365)
at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:3771)
at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:3729)
at org.apache.nifi.provenance.lucene.LuceneEventIndexWriter.commit(LuceneEventIndexWriter.java:101)
at org.apache.nifi.provenance.index.lucene.EventIndexTask.commit(EventIndexTask.java:253)
at org.apache.nifi.provenance.index.lucene.EventIndexTask.index(EventIndexTask.java:232)
... 6 common frames omitted
2023-02-02 08:57:59,845 ERROR [Index Provenance Events-2] o.a.n.p.index.lucene.EventIndexTask Failed to index Provenance Events
org.apache.lucene.store.AlreadyClosedException: this IndexWriter is closed
at org.apache.lucene.index.IndexWriter.ensureOpen(IndexWriter.java:877)
at org.apache.lucene.index.IndexWriter.ensureOpen(IndexWriter.java:891)
at org.apache.lucene.index.IndexWriter.updateDocuments(IndexWriter.java:1468)
at org.apache.lucene.index.IndexWriter.addDocuments(IndexWriter.java:1444)
at org.apache.nifi.provenance.lucene.LuceneEventIndexWriter.index(LuceneEventIndexWriter.java:70)
at org.apache.nifi.provenance.index.lucene.EventIndexTask.index(EventIndexTask.java:202)
at org.apache.nifi.provenance.index.lucene.EventIndexTask.run(EventIndexTask.java:113)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:750)
Caused by: org.apache.lucene.store.AlreadyClosedException: Underlying file changed by an external force at 2023-01-27T15:15:54Z, (lock=NativeFSLock(path=/flowfile_repo/nifi/nifi-1.16.2/provenance_repository_clr/lucene-8-index-1674832554761/write.lock,impl=sun.nio.ch.FileLockImpl[0:9223372036854775807 exclusive valid],creationTime=2023-01-27T15:15:54.997915Z))
at org.apache.lucene.store.NativeFSLockFactory$NativeFSLock.ensureValid(NativeFSLockFactory.java:191)
at org.apache.lucene.store.LockValidatingDirectoryWrapper.createOutput(LockValidatingDirectoryWrapper.java:43)
at org.apache.lucene.store.TrackingDirectoryWrapper.createOutput(TrackingDirectoryWrapper.java:43)
at org.apache.lucene.codecs.lucene80.Lucene80DocValuesConsumer.<init>(Lucene80DocValuesConsumer.java:79)
at org.apache.lucene.codecs.lucene80.Lucene80DocValuesFormat.fieldsConsumer(Lucene80DocValuesFormat.java:161)
at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$FieldsWriter.getInstance(PerFieldDocValuesFormat.java:227)
at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$FieldsWriter.getInstance(PerFieldDocValuesFormat.java:163)
at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$FieldsWriter.addNumericField(PerFieldDocValuesFormat.java:109)
at org.apache.lucene.index.NumericDocValuesWriter.flush(NumericDocValuesWriter.java:108)
at org.apache.lucene.index.DefaultIndexingChain.writeDocValues(DefaultIndexingChain.java:345)
at org.apache.lucene.index.DefaultIndexingChain.flush(DefaultIndexingChain.java:225)
at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:350)
at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:476)
at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:656)
at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:3365)
at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:3771)
at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:3729)
at org.apache.nifi.provenance.lucene.LuceneEventIndexWriter.commit(LuceneEventIndexWriter.java:101)
at org.apache.nifi.provenance.index.lucene.EventIndexTask.commit(EventIndexTask.java:253)
at org.apache.nifi.provenance.index.lucene.EventIndexTask.index(EventIndexTask.java:232)
... 6 common frames omitted
2023-02-02 08:57:59,845 ERROR [Index Provenance Events-1] o.a.n.p.index.lucene.EventIndexTask Failed to index Provenance Events
org.apache.lucene.store.AlreadyClosedException: this IndexWriter is closed
at org.apache.lucene.index.IndexWriter.ensureOpen(IndexWriter.java:877)
at org.apache.lucene.index.IndexWriter.ensureOpen(IndexWriter.java:891)
at org.apache.lucene.index.IndexWriter.updateDocuments(IndexWriter.java:1468)
at org.apache.lucene.index.IndexWriter.addDocuments(IndexWriter.java:1444)
at org.apache.nifi.provenance.lucene.LuceneEventIndexWriter.index(LuceneEventIndexWriter.java:70)
at org.apache.nifi.provenance.index.lucene.EventIndexTask.index(EventIndexTask.java:202)
at org.apache.nifi.provenance.index.lucene.EventIndexTask.run(EventIndexTask.java:113)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:750)
Caused by: org.apache.lucene.store.AlreadyClosedException: Underlying file changed by an external force at 2023-01-27T15:15:54Z, (lock=NativeFSLock(path=/flowfile_repo/nifi/nifi-1.16.2/provenance_repository_clr/lucene-8-index-1674832554761/write.lock,impl=sun.nio.ch.FileLockImpl[0:9223372036854775807 exclusive valid],creationTime=2023-01-27T15:15:54.997915Z))
at org.apache.lucene.store.NativeFSLockFactory$NativeFSLock.ensureValid(NativeFSLockFactory.java:191)
at org.apache.lucene.store.LockValidatingDirectoryWrapper.createOutput(LockValidatingDirectoryWrapper.java:43)
at org.apache.lucene.store.TrackingDirectoryWrapper.createOutput(TrackingDirectoryWrapper.java:43)
at org.apache.lucene.codecs.lucene80.Lucene80DocValuesConsumer.<init>(Lucene80DocValuesConsumer.java:79)
at org.apache.lucene.codecs.lucene80.Lucene80DocValuesFormat.fieldsConsumer(Lucene80DocValuesFormat.java:161)
at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$FieldsWriter.getInstance(PerFieldDocValuesFormat.java:227)
at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$FieldsWriter.getInstance(PerFieldDocValuesFormat.java:163)
at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$FieldsWriter.addNumericField(PerFieldDocValuesFormat.java:109)
at org.apache.lucene.index.NumericDocValuesWriter.flush(NumericDocValuesWriter.java:108)
at org.apache.lucene.index.DefaultIndexingChain.writeDocValues(DefaultIndexingChain.java:345)
at org.apache.lucene.index.DefaultIndexingChain.flush(DefaultIndexingChain.java:225)
at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:350)
at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:476)
at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:656)
at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:3365)
at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:3771)
at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:3729)
at org.apache.nifi.provenance.lucene.LuceneEventIndexWriter.commit(LuceneEventIndexWriter.java:101)
at org.apache.nifi.provenance.index.lucene.EventIndexTask.commit(EventIndexTask.java:253)
at org.apache.nifi.provenance.index.lucene.EventIndexTask.index(EventIndexTask.java:232)
... 6 common frames omitted

Re: Caused by: org.apache.lucene.store.AlreadyClosedException: Underlying file changed by an external force

MattWho — Thu, 02 Feb 2023 19:30:43 GMT

@ajignacio

In the stack trace yoou'll see below:

Caused by: org.apache.lucene.store.AlreadyClosedException: Underlying file changed by an external force

This indicates that something external to your NiFi is changing the provenance files. When we see this it is most commonly the result of some virus software scanning the NiFi repositories and during that modifying the the files.

You should make sure that any external service exclude the NiFi repositories from scanning and modification.

If you found that the provided solution(s) assisted you with your query, please take a moment to login and click Accept as Solution below each response that helped.

Thank you,

Matt