[jira] [Updated] (GEODE-9736) publishes that find no pattern subscribers can cause server to run out of memory

2022-02-08 Thread Anthony Baker (Jira)


 [ 
https://issues.apache.org/jira/browse/GEODE-9736?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Anthony Baker updated GEODE-9736:
-
Labels: unreleased  (was: )

> publishes that find no pattern subscribers can cause server to run out of 
> memory
> 
>
> Key: GEODE-9736
> URL: https://issues.apache.org/jira/browse/GEODE-9736
> Project: Geode
>  Issue Type: Bug
>  Components: redis
>Reporter: Darrel Schneider
>Assignee: Darrel Schneider
>Priority: Major
>  Labels: unreleased
> Fix For: 1.15.0
>
>
> Currently each time a publish is done the server will check existing pattern 
> subscribers to see if they want the publish. If it finds no subscribers it 
> remembers that and the publish channel.
> Since you can just keep making up new publish channels that have no memory, 
> remembering these can cause the server to run out of memory.
> If you hit this problem you will see an instance of 
> PatternSubscriptionManager with a large "patternSubscriptionCache" 
> ConcurrentHashMap. It will be full of entries whose value is an instance of 
> Collections$EmptyList



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[jira] [Updated] (GEODE-9736) publishes that find no pattern subscribers can cause server to run out of memory

2021-10-14 Thread Darrel Schneider (Jira)


 [ 
https://issues.apache.org/jira/browse/GEODE-9736?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Darrel Schneider updated GEODE-9736:

Labels:   (was: needsTriage)

> publishes that find no pattern subscribers can cause server to run out of 
> memory
> 
>
> Key: GEODE-9736
> URL: https://issues.apache.org/jira/browse/GEODE-9736
> Project: Geode
>  Issue Type: Bug
>  Components: redis
>Reporter: Darrel Schneider
>Assignee: Darrel Schneider
>Priority: Major
>
> Currently each time a publish is done the server will check existing pattern 
> subscribers to see if they want the publish. If it finds no subscribers it 
> remembers that and the publish channel.
> Since you can just keep making up new publish channels that have no memory, 
> remembering these can cause the server to run out of memory.
> If you hit this problem you will see an instance of 
> PatternSubscriptionManager with a large "patternSubscriptionCache" 
> ConcurrentHashMap. It will be full of entries whose value is an instance of 
> Collections$EmptyList



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[jira] [Updated] (GEODE-9736) publishes that find no pattern subscribers can cause server to run out of memory

2021-10-14 Thread Alexander Murmann (Jira)


 [ 
https://issues.apache.org/jira/browse/GEODE-9736?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Alexander Murmann updated GEODE-9736:
-
Labels: needsTriage  (was: )

> publishes that find no pattern subscribers can cause server to run out of 
> memory
> 
>
> Key: GEODE-9736
> URL: https://issues.apache.org/jira/browse/GEODE-9736
> Project: Geode
>  Issue Type: Bug
>  Components: redis
>Reporter: Darrel Schneider
>Priority: Major
>  Labels: needsTriage
>
> Currently each time a publish is done the server will check existing pattern 
> subscribers to see if they want the publish. If it finds no subscribers it 
> remembers that and the publish channel.
> Since you can just keep making up new publish channels that have no memory, 
> remembering these can cause the server to run out of memory.
> If you hit this problem you will see an instance of 
> PatternSubscriptionManager with a large "patternSubscriptionCache" 
> ConcurrentHashMap. It will be full of entries whose value is an instance of 
> Collections$EmptyList



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