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https://issues.apache.org/jira/browse/GEODE-2141?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15706173#comment-15706173
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ASF GitHub Bot commented on GEODE-2141:
---------------------------------------
Github user upthewaterspout commented on a diff in the pull request:
https://github.com/apache/incubator-geode/pull/299#discussion_r90078053
--- Diff:
geode-core/src/main/java/org/apache/geode/internal/statistics/StatMonitorHandler.java
---
@@ -138,8 +127,8 @@ public void allocatedResourceInstance(ResourceInstance
resourceInstance) {}
public void destroyedResourceInstance(ResourceInstance resourceInstance)
{}
/** For testing only */
- List<StatisticsMonitor> getMonitorsSnapshot() {
- return Collections.unmodifiableList(this.monitors);
+ ConcurrentHashSet<StatisticsMonitor> getMonitorsSnapshot() {
--- End diff --
Maybe this ought to just return a Collection?
> StatisticsMonitor and StatMonitorHandler should use ConcurrentHashSet to
> store monitors, listeners and statisticIds
> -------------------------------------------------------------------------------------------------------------------
>
> Key: GEODE-2141
> URL: https://issues.apache.org/jira/browse/GEODE-2141
> Project: Geode
> Issue Type: Improvement
> Reporter: Avinash Dongre
> Assignee: Avinash Dongre
>
> In StatisticsMonitor and StatMonitorHandler List is used to store monitors,
> listeners and statisticIds.
> We should be using ConcurrentHashSet for performance Reason.
> In my local testing When I replace the List to
> com.gemstone.gemfire.internal.concurrent.
> ConcurrentHashSet
> I see significant improvement in creating large number of region creation.
> ( from ~7hrs to ~26 minutes)
> More details about the same is on dev list.
> Refer : http://markmail.org/message/o7td3fczylx4uaet
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