About paulusdd

paulusdd · ‎04-17-2018

@GeKas you are the Hero of the day. You saved me from having to call a production maintenance window. Thanks for your help.

paulusdd · ‎04-17-2018

Gekas, that bullet is specifically for upgrading to jdk 1.8, not for upgrading between patch versions of 1.8.

paulusdd · ‎04-17-2018

Denloe, thanks for the answer, I appreciate it. You kind of answered my question but in a roundabout way. I was more asking with whether or not a cluster should run on different versions of the JDK for the amount of time a rolling restart takes. i.e. is it safe to rolling restart a cluster to pick up different versions of the JDK? The page I linked to indicates to not run a cluster with jdk versions, but from what you are saying it sounds like its okay to rolling restart upgrade it.

paulusdd · ‎04-16-2018

Does anyone know?

paulusdd · ‎04-12-2018

I was planning on doing a rolling restart of our CDH Manager managed Hadoop, HBase, ZK, and Yarn cluster when I came across this documentation: https://www.cloudera.com/documentation/enterprise/release-notes/topics/rn_consolidated_pcm.html#pcm_jdk "Running CDH nodes within the same cluster on different JDK releases is not supported. JDK release across a cluster needs to match the patch level." I was planning to do a jdk upgrade from jdk1.8.0_101 to jdk1.8.0.144, however does the above mean that I shouldnt do a rolling restart to get there? Or does that just mean i shouldnt leave them on different jdk versions longterm?

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Cloudera Community

Re: Can you rolling upgrade the JDK on a cluster

Re: Can you rolling upgrade the JDK on a cluster

Re: Can you rolling upgrade the JDK on a cluster

Re: Can you rolling upgrade the JDK on a cluster

Can you rolling upgrade the JDK on a cluster