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https://issues.apache.org/jira/browse/HDDS-17591?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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rajesh resolved HDDS-17591.
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Resolution: Won't Do
Closing. Proxy, attribute and local-span work is one OM trace gap, tracked on
HDDS-17586. Same for SCM (HDDS-17593) and datanode (HDDS-17594): no mechanism
sub-tasks.
> Add logical spans for OM paths not covered by the proxies
> ---------------------------------------------------------
>
> Key: HDDS-17591
> URL: https://issues.apache.org/jira/browse/HDDS-17591
> Project: Apache Ozone
> Issue Type: Sub-task
> Reporter: rajesh
> Assignee: rajesh
> Priority: Major
>
> Some OM work doesn't go through an interface that can be proxied: static
> helpers, code that runs on another thread, and code inside a single large
> method. Add explicit spans for it:
> * \{{OM.startTransaction}}, \{{OM.applyTransaction}} and \{{OM.query}} in
> \{{OzoneManagerStateMachine}}. The OM span's trace ID is carried in the
> \{{OMRequest}}, so the apply on the executor thread stays in the same trace.
> * Critical static paths, for example OM lock acquisition and the
> double-buffer flush. Confirm the final list against latency hot spots.
> * Exceptions recorded on these spans with \{{TracingUtil.recordException}}.
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