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https://issues.apache.org/jira/browse/OAK-5055?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15633211#comment-15633211
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Timothee Maret edited comment on OAK-5055 at 11/3/16 3:47 PM:
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[~mduerig] Looking deeper into the {{RevisionGC}}, it seems there's another
bug. I'll discuss it here since it is coupled to the current issue.
Actually returning {{initiated}}, {{failed}}, etc. is bogus, the operation id
does not match the id of the {{gcOp}} field in the {{RevisionGC}} instance.
This is because the operation methods implicitely increment the idGen counter
(example at [0]). With the current ManagementOperation code, there seems to be
no way to invoke the {{initiated}}, {{failed}}, etc. methods without messing up
the id.
This could be fixed however, either by
1. Exposing the {{initiated(id,message)}} like methods by making them public ;
and changing the {{RevisionGC}} to code to invoke those methods
2. In {{RevisionGC}}, return {{getRevisionGCStatus()}} in any case instead of
{{initiated}}, {{failed}}, etc.
wdyt ?
[0]
https://github.com/apache/jackrabbit-oak/blob/e873825b92faf14b7ef52130c36e6466edcef6b0/oak-core/src/main/java/org/apache/jackrabbit/oak/management/ManagementOperation.java#L279
was (Author: marett):
[~mduerig] Looking deeper into the {{RevisionGC}}, it seems there's another
bug. I'll discuss it here since it is coupled to the current issue.
Actually returning {{initiated}}, {{failed}}, etc. is bogus, the operation id
does not match the id of the {{gcOp}} field in the {{RevisionGC}} instance.
This is because the operation methods implicitely increment the idGen counter
(example at [0]). With the current ManagementOperation code, there seems to be
no way to invoke the {{initiated}}, {{failed}}, etc. methods without messing up
the id.
This could be fixed however, either by
1. Exposing the {{initiated(id,message}} like methods by making them public ;
and changing the {{RevisionGC}} to code to invoke those methods
2. In {{RevisionGC}}, return {{getRevisionGCStatus()}} in any case instead of
{{initiated}}, {{failed}}, etc.
wdyt ?
[0]
https://github.com/apache/jackrabbit-oak/blob/e873825b92faf14b7ef52130c36e6466edcef6b0/oak-core/src/main/java/org/apache/jackrabbit/oak/management/ManagementOperation.java#L279
> o.a.j.o.s.s.RevisionGC returns status that don't comply with the API
>
>
> Key: OAK-5055
> URL: https://issues.apache.org/jira/browse/OAK-5055
> Project: Jackrabbit Oak
> Issue Type: Bug
> Components: core
>Affects Versions: 1.5.12
>Reporter: Timothee Maret
>Assignee: Timothee Maret
> Fix For: 1.5.13
>
> Attachments: OAK-5055.patch, OAK-5055.patch
>
>
> According to the API [0], the method {{RevisionGC#startRevisionGC}} should
> {code}
> @return the status of the operation right after it was initiated
> {code}
> However, it does return {{succeeded}} on every call, see [1].
> I believe this should either compute the actual state, or return
> {{initiated}} or {{running}}.
> Same applies for {{cancelRevisionGC}}.
> [0]
> https://github.com/apache/jackrabbit-oak/blob/18d69e6f590064585414f12bda724f48f3d5843f/oak-core/src/main/java/org/apache/jackrabbit/oak/spi/state/RevisionGCMBean.java#L34-L40
> [1]
> https://github.com/apache/jackrabbit-oak/blob/e873825b92faf14b7ef52130c36e6466edcef6b0/oak-core/src/main/java/org/apache/jackrabbit/oak/spi/state/RevisionGC.java#L105
> https://github.com/apache/jackrabbit-oak/blob/e873825b92faf14b7ef52130c36e6466edcef6b0/oak-core/src/main/java/org/apache/jackrabbit/oak/spi/state/RevisionGC.java#L123
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