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HDFS-12198. Document missing namenode metrics that were added recently. Contributed by Yiqun Lin.

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Akira Ajisaka 2017-08-07 18:47:33 +09:00
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hadoop-common-project/hadoop-common/src/site/markdown/Metrics.md
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@ -145,6 +145,9 @@ Each metrics record contains tags such as ProcessName, SessionId, and Hostname a
| `CreateSymlinkOps` | Total number of createSymlink operations |
| `GetLinkTargetOps` | Total number of getLinkTarget operations |
| `FilesInGetListingOps` | Total number of files and directories listed by directory listing operations |
| `SuccessfulReReplications` | Total number of successful block re-replications |
| `NumTimesReReplicationNotScheduled` | Total number of times that failed to schedule a block re-replication |
| `TimeoutReReplications` | Total number of timed out block re-replications |
| `AllowSnapshotOps` | Total number of allowSnapshot operations |
| `DisallowSnapshotOps` | Total number of disallowSnapshot operations |
| `CreateSnapshotOps` | Total number of createSnapshot operations |
@ -157,8 +160,8 @@ Each metrics record contains tags such as ProcessName, SessionId, and Hostname a
| `SyncsNumOps` | Total number of Journal syncs |
| `SyncsAvgTime` | Average time of Journal syncs in milliseconds |
| `TransactionsBatchedInSync` | Total number of Journal transactions batched in sync |
| `BlockReportNumOps` | Total number of processing block reports from DataNode |
| `BlockReportAvgTime` | Average time of processing block reports in milliseconds |
| `StorageBlockReportNumOps` | Total number of processing block reports from individual storages in DataNode |
| `StorageBlockReportAvgTime` | Average time of processing block reports in milliseconds |
| `CacheReportNumOps` | Total number of processing cache reports from DataNode |
| `CacheReportAvgTime` | Average time of processing cache reports in milliseconds |
| `SafeModeTime` | The interval between FSNameSystem starts and the last time safemode leaves in milliseconds.  (sometimes not equal to the time in SafeMode, see [HDFS-5156](https://issues.apache.org/jira/browse/HDFS-5156)) |
@ -176,6 +179,8 @@ Each metrics record contains tags such as ProcessName, SessionId, and Hostname a
| `GenerateEDEKTimeAvgTime` | Average time of generating EDEK in milliseconds |
| `WarmUpEDEKTimeNumOps` | Total number of warming up EDEK |
| `WarmUpEDEKTimeAvgTime` | Average time of warming up EDEK in milliseconds |
| `ResourceCheckTime`*num*`s(50|75|90|95|99)thPercentileLatency` | The 50/75/90/95/99th percentile of NameNode resource check latency in milliseconds. Percentile measurement is off by default, by watching no intervals. The intervals are specified by `dfs.metrics.percentiles.intervals`. |
| `StorageBlockReport`*num*`s(50|75|90|95|99)thPercentileLatency` | The 50/75/90/95/99th percentile of storage block report latency in milliseconds. Percentile measurement is off by default, by watching no intervals. The intervals are specified by `dfs.metrics.percentiles.intervals`. |
FSNamesystem
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