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https://issues.apache.org/jira/browse/JCR-1939?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12665411#action_12665411
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akil ajani commented on JCR-1939:
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Thanks sir for the information. And also I have tried this option
we have a root node and it has 2 parent node. i am trying to add 600 nodes to
each parent node. so i have created 2 threads, 2 session and each thread is
adding 600 nodes to each parent node in different session.
Thread1(Each thread adding 600 Nodes)---> session1--->ParentNodeA
Thread2(Each thread adding 600 Nodes)---> session2--->ParentNodeB
This works fine and there is no issue. Can you please conform whether there
would be any exception like InvalidItemStateException anytime or there would
not be any issue and it works fine.
> 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
> Assignee: Jukka Zitting
> 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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