chenxu14 commented on a change in pull request #656: HBASE-23063 Add an option
to enable multiget in parallel
URL: https://github.com/apache/hbase/pull/656#discussion_r328897001
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File path: hbase-common/src/main/java/org/apache/hadoop/hbase/HConstants.java
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@@ -969,6 +969,11 @@
public static final String HBASE_REGION_SPLIT_POLICY_KEY =
"hbase.regionserver.region.split.policy";
+ public static final String RS_PARALLEL_GET_ENABLED =
"hbase.server.parallel.get.enabled";
+ public static final String RS_PARALLEL_GET_THREADS =
"hbase.server.parallel.get.threads";
Review comment:
> Stats on executors for general RS sounds good. Need feedback to figure how
to better make use of the feature.
>
> Add to release note stuff like '20 threads by default'. I'd be +1 for
having it on by default but 20 seems like a high number. 5 threads by default?
Since ExecutorService#getAllExecutorStatuses will return all executor’s
status info, I think It‘s not difficult to collect them into metrics system,
will track this in HBASE-23083
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