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https://issues.apache.org/jira/browse/OAK-7610?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Vikas Saurabh resolved OAK-7610.
--------------------------------
       Resolution: Fixed
    Fix Version/s: 1.10

Implemented work-around to handle checkpoint bean implementation on trunk at 
[r1835198|https://svn.apache.org/r1835198].

> Active blob deletion fails on composite setups
> ----------------------------------------------
>
>                 Key: OAK-7610
>                 URL: https://issues.apache.org/jira/browse/OAK-7610
>             Project: Jackrabbit Oak
>          Issue Type: Bug
>          Components: composite, indexing, lucene
>    Affects Versions: 1.9.5
>            Reporter: Paul Chibulcuteanu
>            Assignee: Vikas Saurabh
>            Priority: Major
>             Fix For: 1.10, 1.9.6
>
>
> Because there are two CheckpointManager MBeans present on the composite 
> nodestore setup, active blob deletion fails with the following message:
> {code}
> Unable to get checkpoint mbean. Multiple services of required type found.
> {code}
> The two Mbeans:
> {code}
> Composite node store checkpoint management (CheckpointManager)
> Document node store checkpoint management (CheckpointManager)
> {code}
> Following condition is not satisfied on this setup:
> {code}
>             if (services.size() == 1) {
>                 return services.get(0).getOldestCheckpointCreationTimestamp();
> {code}
> https://github.com/apache/jackrabbit-oak/blob/5ef49f07ea244907dc1f4458ebee269f0437d934/oak-lucene/src/main/java/org/apache/jackrabbit/oak/plugins/index/lucene/ActiveDeletedBlobCollectorMBeanImpl.java#L327-L330



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