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https://issues.apache.org/jira/browse/OAK-3554?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Marcel Reutegger updated OAK-3554:
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Fix Version/s: (was: 1.3.11)
1.4
> Use write concern of w:majority when connected to a replica set
> ---------------------------------------------------------------
>
> Key: OAK-3554
> URL: https://issues.apache.org/jira/browse/OAK-3554
> Project: Jackrabbit Oak
> Issue Type: Improvement
> Components: core, mongomk
> Reporter: Chetan Mehrotra
> Assignee: Marcel Reutegger
> Labels: resilience
> Fix For: 1.4
>
>
> Currently while connecting to Mongo MongoDocumentStore relies on default
> write concern provided as part of mongouri.
> Recently some issues were seen where Mongo based Oak was connecting to 3
> member replica set and there were frequent replica state changes due to use
> of VM for Mongo. This caused data loss and corruption of data in Oak.
> To avoid such situation Oak should default to write concern of majority by
> default. If some write concern is specified as part of mongouri then that
> should take precedence. This would allow system admin to take the call of
> tweaking write concern if required and at same time allows Oak to use the
> safe write concern.
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