HDDS-14425. Implement Ratis follower read exception handling#9811
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ivandika3 wants to merge 1 commit intoapache:masterfrom
Open
HDDS-14425. Implement Ratis follower read exception handling#9811ivandika3 wants to merge 1 commit intoapache:masterfrom
ivandika3 wants to merge 1 commit intoapache:masterfrom
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What changes were proposed in this pull request?
It might be possible for Ratis to throw ReadIndexException if the follower is not able to get the ReadIndex one way or another (e.g. majority OMs are down). Additionally ReadException will be thrown for any pending requests. However, currently this is not handled by both the OM server and client.
OM need to throw these exceptions to prevent NPE similar to HDDS-10918. Client can parse these exceptions and log it.
What is the link to the Apache JIRA
https://issues.apache.org/jira/browse/HDDS-14425
How was this patch tested?
Unit test.
Clean CI: https://github.com/ivandika3/ozone/actions/runs/22333622434