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From "Ai Deng (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-13453) S3Guard: Instrument new functionality with Hadoop metrics.
Date Mon, 16 Jan 2017 23:45:27 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-13453?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Ai Deng updated HADOOP-13453:
-----------------------------
    Description: 
Provide Hadoop metrics showing operational details of the S3Guard implementation.

The metrics will be implemented in this ticket:

● S3GuardRechecksNthPercentileLatency (MutableQuantiles) ­​ Percentile time spent
in rechecks attempting to achieve consistency. Repeated for multiple percentile values
of N.  This metric is an indicator of the additional latency cost of running S3A with
S3Guard.
● S3GuardRechecksNumOps (MutableQuantiles) ­​ Number of times a consistency
recheck was required while attempting to achieve consistency.
● S3GuardStoreNthPercentileLatency (MutableQuantiles) ­​ Percentile time spent in
operations against the consistent store, including both write operations during file system
mutations and read operations during file system consistency checks. Repeated for
multiple percentile values of N. This metric is an indicator of latency to the consistent
store implementation.
● S3GuardConsistencyStoreNumOps (MutableQuantiles) ­​ Number of operations
against the consistent store, including both write operations during file system mutations
and read operations during file system consistency checks.
● S3GuardConsistencyStoreFailures (MutableCounterLong) ­​ Number of failures
during operations against the consistent store implementation.
● S3GuardConsistencyStoreTimeouts (MutableCounterLong) ­​ Number of timeouts
during operations against the consistent store implementation.
● S3GuardInconsistencies (MutableCounterLong) ­ C​ ount of times S3Guard failed to
achieve consistency, even after exhausting all rechecks. A high count may indicate
unexpected out­of­band modification of the S3 bucket contents, such as by an external
tool that does not make corresponding updates to the consistent store.

  was:Provide Hadoop metrics showing operational details of the S3Guard implementation.


> S3Guard: Instrument new functionality with Hadoop metrics.
> ----------------------------------------------------------
>
>                 Key: HADOOP-13453
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13453
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: fs/s3
>            Reporter: Chris Nauroth
>            Assignee: Ai Deng
>
> Provide Hadoop metrics showing operational details of the S3Guard implementation.
> The metrics will be implemented in this ticket:
> ● S3GuardRechecksNthPercentileLatency (MutableQuantiles) ­​ Percentile time spent
> in rechecks attempting to achieve consistency. Repeated for multiple percentile values
> of N.  This metric is an indicator of the additional latency cost of running
S3A with
> S3Guard.
> ● S3GuardRechecksNumOps (MutableQuantiles) ­​ Number of times a consistency
> recheck was required while attempting to achieve consistency.
> ● S3GuardStoreNthPercentileLatency (MutableQuantiles) ­​ Percentile time spent in
> operations against the consistent store, including both write operations during file
system
> mutations and read operations during file system consistency checks. Repeated for
> multiple percentile values of N. This metric is an indicator of latency to the
consistent
> store implementation.
> ● S3GuardConsistencyStoreNumOps (MutableQuantiles) ­​ Number of operations
> against the consistent store, including both write operations during file system mutations
> and read operations during file system consistency checks.
> ● S3GuardConsistencyStoreFailures (MutableCounterLong) ­​ Number of failures
> during operations against the consistent store implementation.
> ● S3GuardConsistencyStoreTimeouts (MutableCounterLong) ­​ Number of timeouts
> during operations against the consistent store implementation.
> ● S3GuardInconsistencies (MutableCounterLong) ­ C​ ount of times S3Guard failed
to
> achieve consistency, even after exhausting all rechecks. A high count may indicate
> unexpected out­of­band modification of the S3 bucket contents, such as by an external
> tool that does not make corresponding updates to the consistent store.



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