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https://issues.apache.org/jira/browse/NIFI-7893?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Mark Payne resolved NIFI-7893.
------------------------------
    Resolution: Duplicate

> Provenance is intermittently blank when 
> `nifi.provenance.repository.compress.on.rollover` is set to `true`
> ----------------------------------------------------------------------------------------------------------
>
>                 Key: NIFI-7893
>                 URL: https://issues.apache.org/jira/browse/NIFI-7893
>             Project: Apache NiFi
>          Issue Type: Bug
>          Components: Core Framework
>    Affects Versions: 1.11.4, 1.12.1
>         Environment: Docker 19.03.13
> Image: apache/nifi:1.12.1
> Python: nipyapi: 0.14.1
>            Reporter: Daniel Khodabakhsh
>            Priority: Major
>
> On Nifi 1.11.4 and 1.12.1, I intermittently am unable to view the provenance 
> in the UI and through the `nipyapi` python library.
> Checking the logs, I get the following message:
> {code:java}
> 2020-10-06 22:12:39,789 INFO [Timer-Driven Process Thread-10] 
> o.a.n.p.store.WriteAheadStorePartition Successfully rolled over Event Writer 
> for Provenance Event Store Partition[directory=./provenance_repository] due 
> to MAX_TIME_REACHED
> 2020-10-06 22:12:39,789 ERROR [Compress Provenance Logs-1-thread-2] 
> o.a.n.p.s.EventFileCompressor Failed to compress 
> ./provenance_repository/0.prov on rollover
> java.io.FileNotFoundException: ./provenance_repository/0.prov (No such file 
> or directory)
>       at java.io.FileInputStream.open0(Native Method)
>       at java.io.FileInputStream.open(FileInputStream.java:195)
>       at java.io.FileInputStream.<init>(FileInputStream.java:138)
>       at 
> org.apache.nifi.provenance.serialization.EventFileCompressor.compress(EventFileCompressor.java:164)
>       at 
> org.apache.nifi.provenance.serialization.EventFileCompressor.run(EventFileCompressor.java:115)
>       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:748){code}
> Setting `nifi.provenance.repository.compress.on.rollover=false` fixes this.
> I'd also like to note that my `/opt/nifi/nifi-current/provenance_repository` 
> directory had a `0.prov.gz` which would be around 10-20 kB and never grow. It 
> also contained a few other files but it never contained a `0.prov` file.
> Here's a copy of all my `nifi.provenance.repository` settings from 
> `nifi.properties`:
> {code:java}
> # Provenance Repository Properties
>  
> nifi.provenance.repository.implementation=org.apache.nifi.provenance.WriteAheadProvenanceRepository
>  nifi.provenance.repository.debug.frequency=1_000_000
>  nifi.provenance.repository.encryption.key.provider.implementation=
>  nifi.provenance.repository.encryption.key.provider.location=
>  nifi.provenance.repository.encryption.key.id=
>  nifi.provenance.repository.encryption.key=
> # Persistent Provenance Repository Properties
>  nifi.provenance.repository.directory.default=./provenance_repository
>  nifi.provenance.repository.max.storage.time=24 hours
>  nifi.provenance.repository.max.storage.size=1 GB
>  nifi.provenance.repository.rollover.time=30 secs
>  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=false
>  nifi.provenance.repository.always.sync=false
>  # Comma-separated list of fields. Fields that are not indexed will not be 
> searchable. Valid fields are:
>  # EventType, FlowFileUUID, Filename, TransitURI, ProcessorID, 
> AlternateIdentifierURI, Relationship, Details
>  nifi.provenance.repository.indexed.fields=EventType, FlowFileUUID, Filename, 
> ProcessorID, Relationship
>  # FlowFile Attributes that should be indexed and made searchable.  Some 
> examples to consider are filename, uuid, mime.type
>  nifi.provenance.repository.indexed.attributes=
>  # Large values for the shard size will result in more Java heap usage when 
> searching the Provenance Repository
>  # but should provide better performance
>  nifi.provenance.repository.index.shard.size=500 MB
>  # Indicates the maximum length that a FlowFile attribute can be when 
> retrieving a Provenance Event from
>  # the repository. If the length of any attribute exceeds this value, it will 
> be truncated when the event is retrieved.
>  nifi.provenance.repository.max.attribute.length=65536
>  nifi.provenance.repository.concurrent.merge.threads=2
> # Volatile Provenance Respository Properties
>  nifi.provenance.repository.buffer.size=100000
> {code}



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