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https://issues.apache.org/jira/browse/HDDS-1258?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Shweta reassigned HDDS-1258:
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Assignee: Shweta (was: Kitti Nanasi)
> Fix error propagation for SCM protocol
> --------------------------------------
>
> Key: HDDS-1258
> URL: https://issues.apache.org/jira/browse/HDDS-1258
> Project: Hadoop Distributed Data Store
> Issue Type: Improvement
> Reporter: Elek, Marton
> Assignee: Shweta
> Priority: Major
>
> HDDS-1068 fixed the error propagation between the OM client and OM server.
> By default the Server.java transforms all the IOExceptions to one string
> (message + stack trace) and this is returned to the client.
> But for business exception (eg. volume not found, chill mode is active, etc.)
> this is not what we need.
> In the OM side we fixed this behaviour. In the ServerSideTranslator classes
> we catch (server) the business (OMException) exceptions and serialize them to
> the response object.
> The exception (and the status code) is stored in message/status field of the
> OMResponse (hadoop-ozone/common/src/main/proto/OzoneManagerProtocol.proto)
> Here I propose to do the same for the ScmBlockLocationProtocol.proto.
> Unfortunately there is no common parent object (like OMRequest) in this
> protocol, but we can easily add one as only the Serverside/Clientside
> translator should be changed for that.
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