[jira] [Updated] (OAK-1709) Diff cache entry too large

["Amit Jain (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/OAK-1709?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Amit Jain updated OAK-1709:
---------------------------
    Fix Version/s:     (was: 1.1)
                   1.1.1

> Diff cache entry too large
> --------------------------
>
>                 Key: OAK-1709
>                 URL: https://issues.apache.org/jira/browse/OAK-1709
>             Project: Jackrabbit Oak
>          Issue Type: Bug
>          Components: core, mongomk
>    Affects Versions: 0.20
>            Reporter: Ankush Kumar
>            Assignee: Marcel Reutegger
>            Priority: Minor
>             Fix For: 1.1.1
>
>
> Following error can be seen while upgrading from CRX2 repo to OAK (Mongo)
> 07.04.2014 10:00:01.349 *WARN* [FelixStartLevel] org.apache.jackrabbit.oak.plugins.document.MongoDiffCache Write back of diff cache entry failed
> com.mongodb.MongoInternalException: DBObject of size 26956363 is over Max BSON size 16777216
>         at com.mongodb.OutMessage.putObject(OutMessage.java:291)
>         at com.mongodb.DBApiLayer$MyCollection.insert(DBApiLayer.java:239)
>         at com.mongodb.DBApiLayer$MyCollection.insert(DBApiLayer.java:204)
>         at com.mongodb.DBCollection.insert(DBCollection.java:148)
>         at com.mongodb.DBCollection.insert(DBCollection.java:91)
>         at org.apache.jackrabbit.oak.plugins.document.MongoDiffCache$1.done(MongoDiffCache.java:156)
>         at org.apache.jackrabbit.oak.plugins.document.Commit.applyToCache(Commit.java:607)
>         at org.apache.jackrabbit.oak.plugins.document.CommitQueue.done(CommitQueue.java:80)
>         at org.apache.jackrabbit.oak.plugins.document.DocumentNodeStore.done(DocumentNodeStore.java:520)
> Mails regarding this
> Hi,
> > Could you open an Oak issue (subject for example "Diff cache entry too 
> > large", at https://issues.apache.org/jira/browse/OAK) with this stack 
> > trace please? I'm not sure how serious this is, given that it's only a 
> > warning. But it should be fixed in Oak.
> it is not a serious issue. it simply means a diff cache entry will not be persisted to the capped "changes" collection in mongo. Oak will simply calculate the diff if an entry in that collection is missing or had been overwritten.
> nothing to worry about, but it would be good to have an issue to avoid the warning in the first place.
> regards
>  marcel



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