[jira] [Updated] (IGNITE-7095) JdbcConnection hard linked in IgniteH2Indexing preventing old connections from closing

2017-12-12 Thread Vladimir Ozerov (JIRA) 

 [ 
https://issues.apache.org/jira/browse/IGNITE-7095?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Vladimir Ozerov updated IGNITE-7095:

Fix Version/s: (was: 2.5)

> JdbcConnection hard linked in IgniteH2Indexing preventing old connections 
> from closing
> --
>
> Key: IGNITE-7095
> URL: https://issues.apache.org/jira/browse/IGNITE-7095
> Project: Ignite
>  Issue Type: Bug
>  Components: sql
>Affects Versions: 2.3
>Reporter: Alexandr Kuramshin
>Assignee: Taras Ledkov
> Fix For: 2.4
>
> Attachments: IndexClientTest.java, IndexTest.java
>
>
> Every time a new thread performs {{SqlFieldsQuery}} the new 
> {{org.h2.jdbc.JdbcConnection}} will be created and added to the 
> {{org.apache.ignite.internal.processors.query.h2.IgniteH2Indexing#conns}}.
> Such hard link prevents from the {{org.h2.util.CloseWatcher}} to be enqueued 
> and old connections will remain in heap even after the thread exits.
> After some number of SQL queries the {{java.lang.OutOfMemoryError}} will 
> occur.



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[jira] [Updated] (IGNITE-7095) JdbcConnection hard linked in IgniteH2Indexing preventing old connections from closing

2017-12-02 Thread Alexandr Kuramshin (JIRA) 

 [ 
https://issues.apache.org/jira/browse/IGNITE-7095?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Alexandr Kuramshin updated IGNITE-7095:
---
Attachment: IndexClientTest.java
IndexTest.java

Simple reproducer. Start IndexTest then start IndexClientTest.

After message 'All queries done' on the client the heap will contain the number 
of JdcbConnection and related objects.

> JdbcConnection hard linked in IgniteH2Indexing preventing old connections 
> from closing
> --
>
> Key: IGNITE-7095
> URL: https://issues.apache.org/jira/browse/IGNITE-7095
> Project: Ignite
>  Issue Type: Bug
>  Components: sql
>Affects Versions: 2.3
>Reporter: Alexandr Kuramshin
> Fix For: 2.4, 2.5
>
> Attachments: IndexClientTest.java, IndexTest.java
>
>
> Every time a new thread performs {{SqlFieldsQuery}} the new 
> {{org.h2.jdbc.JdbcConnection}} will be created and added to the 
> {{org.apache.ignite.internal.processors.query.h2.IgniteH2Indexing#conns}}.
> Such hard link prevents from the {{org.h2.util.CloseWatcher}} to be enqueued 
> and old connections will remain in heap even after the thread exits.
> After some number of SQL queries the {{java.lang.OutOfMemoryError}} will 
> occur.



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