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https://issues.apache.org/jira/browse/HDDS-2344?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Bharat Viswanadham updated HDDS-2344:
-------------------------------------
Description:
OMVolumeCreateRequest.java L159:
{code:java}
omClientResponse =
new OMVolumeCreateResponse(omVolumeArgs,volumeList, omResponse.build());{code}
We add this to double-buffer, and double-buffer flushThread which is running in
the background when picks up, converts to protoBuf and to ByteArray and write
to rocksDB tables. So, during this conversion(This conversion will be done
without any lock acquire), if any other request changes internal structure(like
acls list) of OmVolumeArgs we might get ConcurrentModificationException.
was:
OMBucketCreateRequest.java L181:
omClientResponse =
new OMBucketCreateResponse(omBucketInfo,
omResponse.build());
We add this to double-buffer, and double-buffer flushThread which is running in
the background when picks up, converts to protoBuf and to ByteArray and write
to rocksDB tables. So, during this conversion(This conversion will be done
without any lock acquire), if any other request changes internal structure(like
acls list) of OMBucketInfo we might get ConcurrentModificationException.
> CLONE - Add immutable entries in to the DoubleBuffer for Volume requests.
> -------------------------------------------------------------------------
>
> Key: HDDS-2344
> URL: https://issues.apache.org/jira/browse/HDDS-2344
> Project: Hadoop Distributed Data Store
> Issue Type: Task
> Reporter: Bharat Viswanadham
> Assignee: Bharat Viswanadham
> Priority: Major
> Labels: pull-request-available
> Fix For: 0.5.0
>
>
> OMVolumeCreateRequest.java L159:
> {code:java}
> omClientResponse =
> new OMVolumeCreateResponse(omVolumeArgs,volumeList,
> omResponse.build());{code}
>
> We add this to double-buffer, and double-buffer flushThread which is running
> in the background when picks up, converts to protoBuf and to ByteArray and
> write to rocksDB tables. So, during this conversion(This conversion will be
> done without any lock acquire), if any other request changes internal
> structure(like acls list) of OmVolumeArgs we might get
> ConcurrentModificationException.
>
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