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https://issues.apache.org/jira/browse/JCR-1939?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12664811#action_12664811
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akil ajani commented on JCR-1939:
---------------------------------
I have seen JCR-1359 seems that it also has some issue. Even if we use separate
thread for each session. Can you please conform me. Also can you please provide
me a link for JCR spec about thread-safety of sessions.
> If we threading to add nodes into the repository
> ------------------------------------------------
>
> Key: JCR-1939
> URL: https://issues.apache.org/jira/browse/JCR-1939
> Project: Jackrabbit Content Repository
> Issue Type: Bug
> Affects Versions: 1.5.0
> Environment: Microsoft windows XP professional, 2GB ram
> Reporter: akil ajani
> Fix For: 1.5.0
>
>
> Senario 1:
> we have a root node and it has 1 parent node. i am trying to add 600 nodes to
> that parent node. so i have created 3 threads and each thread is adding 200
> nodes. it works for some time and later on throws an exception
> java.util.ConcurrentModificationException
> at java.util.HashMap$HashIterator.nextEntry(HashMap.java:787)
> at java.util.HashMap$ValueIterator.next(HashMap.java:817)
> at
> java.util.Collections$UnmodifiableCollection$1.next(Collections.java:1010)
> at
> org.apache.jackrabbit.core.state.SessionItemStateManager.getDescendantTransientItemStates(SessionItemStateManager.java:376)
> at
> org.apache.jackrabbit.core.ItemImpl.getTransientStates(ItemImpl.java:361)
> at org.apache.jackrabbit.core.ItemImpl.save(ItemImpl.java:1079)
> at org.apache.jackrabbit.core.SessionImpl.save(SessionImpl.java:849)
> some time it gets HANGED
> Scenario:2
> we have a root node and it has 2 parent node. i am trying to add 600 nodes to
> eac parent node. so i have created 2 threads and each thread is adding 600
> nodes to cach parent node. it works for some time and later on throws an
> exception
> java.util.ConcurrentModificationException
> at java.util.HashMap$HashIterator.nextEntry(HashMap.java:787)
> at java.util.HashMap$ValueIterator.next(HashMap.java:817)
> at
> java.util.Collections$UnmodifiableCollection$1.next(Collections.java:1010)
> at
> org.apache.jackrabbit.core.state.SessionItemStateManager.getDescendantTransientItemStates(SessionItemStateManager.java:376)
> at
> org.apache.jackrabbit.core.ItemImpl.getTransientStates(ItemImpl.java:361)
> at org.apache.jackrabbit.core.ItemImpl.save(ItemImpl.java:1079)
> at org.apache.jackrabbit.core.SessionImpl.save(SessionImpl.java:849)
> some time it gets HANGED
> please help me to resolve this issue as soon as possible. i would be thankful
> to you if you could provide me the solution for this as soon as possible
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