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https://issues.apache.org/jira/browse/HBASE-27038?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Bryan Beaudreault updated HBASE-27038:
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Labels: needs-review patch-available (was: )
Status: Patch Available (was: Open)
Submitted https://github.com/apache/hbase/pull/4492
> CellComparator should extend Serializable
> -----------------------------------------
>
> Key: HBASE-27038
> URL: https://issues.apache.org/jira/browse/HBASE-27038
> Project: HBase
> Issue Type: Improvement
> Reporter: Bryan Beaudreault
> Assignee: Bryan Beaudreault
> Priority: Minor
> Labels: patch-available, needs-review
>
> Prior to HBASE-18945, CellComparator was a class which implemented
> Serializable. In that jira, an interface was extracted with the intent of
> making the implementation IA.Private. This broke some downstream consumers,
> so the new CellComparator interface was made IA.Public in HBASE-19160.
> One remaining breakage from that change is that if someone is using
> CellComparator in spark it will fails because it's not serializable.
> Everything in spark needs to be serializable, and the old CellComprator class
> used to extend Serializable. There was some small discussion in HBASE-18945
> about removing Serializable, but I don't think anyone thought of this
> use-case.
> The failure is:
> Job aborted due to stage failure: Task not serializable:
> java.io.NotSerializableException: org.apache.hadoop.hbase.CellComparatorImpl
> We should make CellComparator extend Serializable, or have CellComparatorImpl
> implement it.
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