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How to comment a property in nifi.properties or bootstrap using cloudera manager?

avatar
Rising Star

Hi,

 

I was trying to use nifi.provenance.repository.implementation=org.apache.nifi.provenance.WriteAheadProvenanceRepository. To do so i have to comment java.arg.13=-XX:+UseG1GC to get rid of any performance issues as per 
https://community.cloudera.com/t5/Community-Articles/HDF-CFM-NIFI-Best-practices-for-setting-up-a-hi...

However i find it difficult on how to do it via Cloudera Manager. 

Please help.

1 ACCEPTED SOLUTION

avatar
Super Mentor

@bsivalingam83 

 

The ability to "ignore" properties in various NiFi config files was added with the CFM 1.0.1 release.
Screen Shot 2021-02-10 at 1.21.13 PM.png

 

With older CFM versions (1.0.0) you can set a safety valve to overwrite the current set java.arg.13 value with something else:
Screen Shot 2021-02-10 at 1.24.30 PM.png


Above simply defines a key=value pair which would simply not be used by NiFi bootstrap.  End result, NiFi no longer using G1GC and instead using the default Garbage Collector for your version of Java being used.

Hope this helps,

Matt

 

View solution in original post

4 REPLIES 4

avatar
Expert Contributor

Hello @bsivalingam83 

 

You may navigate to NiFi configuration and search for ignore.  To remove the “java.arg.13=-XX:+UseG1GC” you can add a property under the “bootstrap.conf ignored properties” section for “java.arg.13". Kindly let me know if this helps.

 

Br,

Tarun


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avatar
Rising Star

Hello @tjangid,

 

Thanks for your reply. When i search for "ignore" under NiFi Configurations i was not getting any results. I also i checked in advanced category and i could find only "NiFi Node Advanced Configuration Snippet (Safety Valve) for staging/bootstrap.conf.xml" not any ignored section. Please let me know if am missing anything here.

 

Thanks,

Bala

avatar
Super Mentor

@bsivalingam83 

 

The ability to "ignore" properties in various NiFi config files was added with the CFM 1.0.1 release.
Screen Shot 2021-02-10 at 1.21.13 PM.png

 

With older CFM versions (1.0.0) you can set a safety valve to overwrite the current set java.arg.13 value with something else:
Screen Shot 2021-02-10 at 1.24.30 PM.png


Above simply defines a key=value pair which would simply not be used by NiFi bootstrap.  End result, NiFi no longer using G1GC and instead using the default Garbage Collector for your version of Java being used.

Hope this helps,

Matt

 

avatar
Rising Star

Thanks @MattWho. Got it !!