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https://issues.apache.org/jira/browse/HBASE-19002?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16219733#comment-16219733
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Ted Yu commented on HBASE-19002:
--------------------------------
Josh - you're so fast :-)
{code}
+ public void postFlush(
+ ObserverContext<RegionCoprocessorEnvironment> c, Store store,
StoreFile resultFile,
+ FlushLifeCycleTracker tracker) throws IOException {
+ flushCounter.increment();
{code}
This hook has store passed to it (compared to postFlush() above this). I wonder
if a different counter than flushCounter can be used to track the occurrences.
{code}
+public class ValueRewritingObserver implements RegionObserver,
RegionCoprocessor {
{code}
Please add description on what the observer does.
{code}
+ // TODO: this is incontrived, other types will happen in real life
+ cellBuilder.setType(DataType.Put);
{code}
How about using the same type as that of the cell ?
Please clear the cellBuilder after build() is called.
Thanks
> Introduce more examples to show how to intercept normal region operations
> -------------------------------------------------------------------------
>
> Key: HBASE-19002
> URL: https://issues.apache.org/jira/browse/HBASE-19002
> Project: HBase
> Issue Type: Sub-task
> Components: Coprocessors
> Reporter: Duo Zhang
> Assignee: Josh Elser
> Priority: Minor
> Fix For: 2.0.0-alpha-4
>
> Attachments: HBASE-19002.001.branch-2.patch
>
>
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