Charles Connell created HBASE-29160:
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Summary: Cache result of getRegionNameAsString()
Key: HBASE-29160
URL: https://issues.apache.org/jira/browse/HBASE-29160
Project: HBase
Issue Type: Improvement
Reporter: Charles Connell
Assignee: Charles Connell
Attachments: slow-region-name-1.html, slow-region-name-2.html,
slow-region-name-3.html
I've noticed that tracing can add meaning CPU cycles to each HBase query. This
is easy to correct, it turns out. Creating a tracing span is slow because
region names are attached to the spans, and calls to
{{RegionInfo#getRegionNameAsString()}} are expensive. This method re-generates
the region name string on each call, which is not necessary. In this ticket
I'll make it cache this string.
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