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Posted to common-commits@hadoop.apache.org by ay...@apache.org on 2021/11/14 14:40:35 UTC
[hadoop] branch trunk updated: HDFS-16319. Add metrics doc for ReadLockLongHoldCount and WriteLockLongHoldCount (#3653). Contributed by tomscut.
This is an automated email from the ASF dual-hosted git repository.
ayushsaxena pushed a commit to branch trunk
in repository https://gitbox.apache.org/repos/asf/hadoop.git
The following commit(s) were added to refs/heads/trunk by this push:
new 60acf84 HDFS-16319. Add metrics doc for ReadLockLongHoldCount and WriteLockLongHoldCount (#3653). Contributed by tomscut.
60acf84 is described below
commit 60acf8434dd829ec10b2f4b6563d7d9e09520d64
Author: litao <to...@gmail.com>
AuthorDate: Sun Nov 14 22:40:24 2021 +0800
HDFS-16319. Add metrics doc for ReadLockLongHoldCount and WriteLockLongHoldCount (#3653). Contributed by tomscut.
Signed-off-by: Ayush Saxena <ay...@apache.org>
---
hadoop-common-project/hadoop-common/src/site/markdown/Metrics.md | 2 ++
1 file changed, 2 insertions(+)
diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/Metrics.md b/hadoop-common-project/hadoop-common/src/site/markdown/Metrics.md
index 2002e7a..9f9381d 100644
--- a/hadoop-common-project/hadoop-common/src/site/markdown/Metrics.md
+++ b/hadoop-common-project/hadoop-common/src/site/markdown/Metrics.md
@@ -285,6 +285,8 @@ Each metrics record contains tags such as HAState and Hostname as additional inf
| `HAState` | (HA-only) Current state of the NameNode: initializing or active or standby or stopping state |
| `FSState` | Current state of the file system: Safemode or Operational |
| `LockQueueLength` | Number of threads waiting to acquire FSNameSystem lock |
+| `ReadLockLongHoldCount` | The number of time the read lock has been held for longer than the threshold |
+| `WriteLockLongHoldCount` | The number of time the write lock has been held for longer than the threshold |
| `TotalSyncCount` | Total number of sync operations performed by edit log |
| `TotalSyncTimes` | Total number of milliseconds spent by various edit logs in sync operation|
| `NameDirSize` | NameNode name directories size in bytes |
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