[
https://issues.apache.org/jira/browse/PHOENIX-5358?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Kadir OZDEMIR updated PHOENIX-5358:
-----------------------------------
Description: The GlobalIndexChecker coprocessor is responsible for checking
if an index row is "verified", that is, has completed its most recent two-phase
write operation, during scans. If the row is not verified then the coprocessor
rebuilds the row using a read-repair technique. The read-repair operations
should be rare but add extra latency on the scan operations. We need to know
how many read-repair operations happen and how long they take. Thus, we need
metrics on them. (was: The GlobalIndexChecker coprocessor is responsible for
checking if an index row is "verified", that is, has completed its most recent
two-phase write operation, during scans. If the row is not verified then the
coprocessor rebuilds the row using a read-repair technique. The read-repair
operations should be rare but add extra latency on the scan operations. We need
to know how many read-repair operations happen and how long they take. Thus, we
need to metrics on them.)
> Metrics for the GlobalIndexChecker coprocessor
> ----------------------------------------------
>
> Key: PHOENIX-5358
> URL: https://issues.apache.org/jira/browse/PHOENIX-5358
> Project: Phoenix
> Issue Type: Improvement
> Affects Versions: 4.13.1, 5.0.0, 4.15.0, 4.14.2
> Reporter: Kadir OZDEMIR
> Priority: Major
>
> The GlobalIndexChecker coprocessor is responsible for checking if an index
> row is "verified", that is, has completed its most recent two-phase write
> operation, during scans. If the row is not verified then the coprocessor
> rebuilds the row using a read-repair technique. The read-repair operations
> should be rare but add extra latency on the scan operations. We need to know
> how many read-repair operations happen and how long they take. Thus, we need
> metrics on them.
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)