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https://issues.apache.org/jira/browse/HBASE-11407?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14042367#comment-14042367
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Nicolas Liochon commented on HBASE-11407:
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bq. IIRC this is used for the slow operation logging in IPC tracing on the
server.
Yeah, I've checked, you're right, toString() is used in a few logs. Not anymore
for slowOperation: the rpcServer uses its own json mapper. But we should not
log anyway as it's a security issue (iirc it's now correct in the
slowOperation and does not expose any potentially private field).
> hbase-client should not require Jackson for pure HBase queries be executed
> ---------------------------------------------------------------------------
>
> Key: HBASE-11407
> URL: https://issues.apache.org/jira/browse/HBASE-11407
> Project: HBase
> Issue Type: Improvement
> Components: Client
> Affects Versions: 0.98.3
> Reporter: Sergey Beryozkin
> Assignee: Sergey Beryozkin
> Priority: Minor
> Fix For: 0.98.4
>
> Attachments: diff.txt
>
>
> Including the hbase-client module dependency and excluding Jackson
> dependencies causes the pure HBase query (run with HTableInterface) fail with
> Jackson ObjectMapper ClassNotFoundException.
> This is due to org.apache.hadoop.hbase.client.Operation having ObjectMapper
> statically initialized.
> Moving ObjectMapper to a dedicated utility will help. The patch will be
> attached.
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