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Posted to oak-issues@jackrabbit.apache.org by "Stefan Egli (JIRA)" <ji...@apache.org> on 2017/01/25 12:19:26 UTC
[jira] [Comment Edited] (OAK-5446) leaseUpdateThread might be
blocked by leaseUpdateCheck
[ https://issues.apache.org/jira/browse/OAK-5446?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15837629#comment-15837629 ]
Stefan Egli edited comment on OAK-5446 at 1/25/17 12:19 PM:
------------------------------------------------------------
bq. we are ok with this to be done before we branch 1.6
it is a change in a quite central part, so the question is if this is indeed a blocker for 1.6 or if it can't wait... We'd have to -thoroughly- test the fix well.
was (Author: egli):
bq. we are ok with this to be done before we branch 1.6
it is a change in a quite central part, so the question is if this is indeed a blocker for 1.6 or if it can't wait... We'd have to thoroughly test the fix.
> leaseUpdateThread might be blocked by leaseUpdateCheck
> ------------------------------------------------------
>
> Key: OAK-5446
> URL: https://issues.apache.org/jira/browse/OAK-5446
> Project: Jackrabbit Oak
> Issue Type: Bug
> Components: core
> Affects Versions: 1.4, 1.5.14
> Reporter: Stefan Eissing
> Assignee: Julian Reschke
> Labels: candidate_oak_1_4, candidate_oak_1_6
> Attachments: OAK-5446.diff
>
>
> Fighting with cluster nodes losing their lease and shutting down oak-core in a cloud environment. For reasons unknown at this point in time, the whole process seems to skip about two minutes of real time.
> This is a situation from which oak currently does not recover. Code analysis shows that {{ClusterNodeInfo}} is handed the {{LeaseCheckDocumentStoreWrapper}} instance to use as store. This is fatal since any action the {{renewLease()}} tries to do will first invoke the {{performLeaseCheck()}}. The lease check will, when the {{FailureMargin}} is reached, _stall the renewLease() thread_ for 5 retry attempts and then declare the lease to be lost.
> The {{ClusterNodeInfo}} should instead be using the "real" {{DocumentStore}}, not the wrapped one, IMO.
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