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https://issues.apache.org/jira/browse/HDDS-17076?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated HDDS-17076:
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Labels: pull-request-available (was: )
> Ozone debug replicas chunk-info prints log/error output on the same line as
> closing brace
> -----------------------------------------------------------------------------------------
>
> Key: HDDS-17076
> URL: https://issues.apache.org/jira/browse/HDDS-17076
> Project: Apache Ozone
> Issue Type: Bug
> Reporter: Sarveksha Yeshavantha Raju
> Assignee: Sarveksha Yeshavantha Raju
> Priority: Major
> Labels: pull-request-available
>
> {{ozone debug replicas chunk-info}} writes JSON to stdout through a Jackson
> JsonGenerator and prints per-datanode errors (Error getting block from
> datanode ...) to stderr. Client logs, such as INFO scm.XceiverClientGrpc:
> XceiverClientGrpc is created for pipeline ..., also go to stderr. The
> generator does not end a datanode's JSON object with a newline, so when
> stdout and stderr are merged, a message can be written on the same line as
> the closing }:
> {noformat}
> } ]
> }
> }26/10/16 11:24:19 INFO scm.XceiverClientGrpc: XceiverClientGrpc is
> created for pipeline ...
> ], [ {
> {noformat}
> Tools that strip log lines by line then remove the } together with the log
> message, and the remaining output is no longer valid JSON.
> Fix: In ChunkKeyHandler, call System.out.println() after flushing each
> datanode's JSON object, so stderr messages never share a line with JSON.
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