[
https://issues.apache.org/jira/browse/NIFI-6895?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16988941#comment-16988941
]
Josef Zahner commented on NIFI-6895:
------------------------------------
Hi [~pvillard], we faced the issue in our production nifi cluster which I don't
want to endanger again with tests. I can't promise that I'll find the time to
set it up in lab and test (it's not that easy as we have to send a lot of data
through the processor and lab is not really ready for tests).
I'll keep you posted if I find the time to work in it. Cheers
> PutKudu Processor Warnings - Applying an operation in a closed session; this
> is unsafe
> --------------------------------------------------------------------------------------
>
> Key: NIFI-6895
> URL: https://issues.apache.org/jira/browse/NIFI-6895
> Project: Apache NiFi
> Issue Type: Bug
> Affects Versions: 1.10.0
> Environment: Kudu 1.10.0; NiFi 1.10.0, OpenJDK 8 (232); 8 Node Cluster
> Reporter: Josef Zahner
> Assignee: Grant Henke
> Priority: Major
> Fix For: 1.11.0
>
> Time Spent: 1h 10m
> Remaining Estimate: 0h
>
> We have just upgraded from NiFi 1.9.2 to NiFi 1.10.0. We have seen that we
> got 1’000 times more logs ({{nifi-app.log}}) since the upgrade, caused mainly
> by the PutKudu processor.
> The logmessages we are always getting are:
> {code:java}
> 2019-11-21 08:42:27,627 WARN [Timer-Driven Process Thread-2]
> org.apache.kudu.client.AsyncKuduSession Applying an operation in a closed
> session; this is unsafe{code}
> The PutKudu processor itself seems to work fine.
>
> The line of code which from Apache Kudu Client which reflects the message is
> here: (line 547):
>
> [https://github.com/apache/kudu/blob/master/java/kudu-client/src/main/java/org/apache/kudu/client/AsyncKuduSession.java]
>
> Since we are getting a huge amount of loglines we had to insert the following
> *workaround* in {{logback.xml}}:
> {code:java}
> <logger name="org.apache.kudu.client.AsyncKuduSession" level="ERROR"/>
> {code}
> Without suppressing the AsyncKuduSession messages we are getting multiple
> gigabytes of data per hour, but sadly with the workaround we don't see any
> PutKudu warnings anymore.
>
> Can the dev's please check why we are getting the warning and fix the root
> cause? Thanks in advance.
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
