Return-Path: X-Original-To: archive-asf-public-internal@cust-asf2.ponee.io Delivered-To: archive-asf-public-internal@cust-asf2.ponee.io Received: from cust-asf.ponee.io (cust-asf.ponee.io [163.172.22.183]) by cust-asf2.ponee.io (Postfix) with ESMTP id DB438200C7E for ; Tue, 23 May 2017 18:05:02 +0200 (CEST) Received: by cust-asf.ponee.io (Postfix) id D9BF1160BD6; Tue, 23 May 2017 16:05:02 +0000 (UTC) Delivered-To: archive-asf-public@cust-asf.ponee.io Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by cust-asf.ponee.io (Postfix) with SMTP id 312CE160BC3 for ; Tue, 23 May 2017 18:05:02 +0200 (CEST) Received: (qmail 18884 invoked by uid 500); 23 May 2017 16:05:01 -0000 Mailing-List: contact common-commits-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Delivered-To: mailing list common-commits@hadoop.apache.org Received: (qmail 18867 invoked by uid 99); 23 May 2017 16:05:01 -0000 Received: from git1-us-west.apache.org (HELO git1-us-west.apache.org) (140.211.11.23) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 23 May 2017 16:05:01 +0000 Received: by git1-us-west.apache.org (ASF Mail Server at git1-us-west.apache.org, from userid 33) id C9619DFFB5; Tue, 23 May 2017 16:05:00 +0000 (UTC) Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit From: brahma@apache.org To: common-commits@hadoop.apache.org Date: Tue, 23 May 2017 16:05:01 -0000 Message-Id: <0ffe8042c58442b1a3117f29383f3eb4@git.apache.org> In-Reply-To: References: X-Mailer: ASF-Git Admin Mailer Subject: [2/4] hadoop git commit: HDFS-11864. Document Metrics to track usage of memory for writes. Contributed by Yiqun Lin. archived-at: Tue, 23 May 2017 16:05:03 -0000 HDFS-11864. Document Metrics to track usage of memory for writes. Contributed by Yiqun Lin. (cherry picked from commit 52661e0912a79d1e851afc2b46c941ce952ca63f) Project: http://git-wip-us.apache.org/repos/asf/hadoop/repo Commit: http://git-wip-us.apache.org/repos/asf/hadoop/commit/d61418f3 Tree: http://git-wip-us.apache.org/repos/asf/hadoop/tree/d61418f3 Diff: http://git-wip-us.apache.org/repos/asf/hadoop/diff/d61418f3 Branch: refs/heads/branch-2 Commit: d61418f34a6ed86c42c0d145c535d5b080399f21 Parents: ec346d6 Author: Brahma Reddy Battula Authored: Tue May 23 23:52:42 2017 +0800 Committer: Brahma Reddy Battula Committed: Tue May 23 23:53:27 2017 +0800 ---------------------------------------------------------------------- .../hadoop-common/src/site/markdown/Metrics.md | 15 +++++++++++++++ 1 file changed, 15 insertions(+) ---------------------------------------------------------------------- http://git-wip-us.apache.org/repos/asf/hadoop/blob/d61418f3/hadoop-common-project/hadoop-common/src/site/markdown/Metrics.md ---------------------------------------------------------------------- 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 106b08d..3d1d3c4 100644 --- a/hadoop-common-project/hadoop-common/src/site/markdown/Metrics.md +++ b/hadoop-common-project/hadoop-common/src/site/markdown/Metrics.md @@ -284,6 +284,21 @@ Each metrics record contains tags such as SessionId and Hostname as additional i | `WritesFromLocalClient` | Total number of write operations from local client | | `WritesFromRemoteClient` | Total number of write operations from remote client | | `BlocksGetLocalPathInfo` | Total number of operations to get local path names of blocks | +| `RamDiskBlocksWrite` | Total number of blocks written to memory | +| `RamDiskBlocksWriteFallback` | Total number of blocks written to memory but not satisfied (failed-over to disk) | +| `RamDiskBytesWrite` | Total number of bytes written to memory | +| `RamDiskBlocksReadHits` | Total number of times a block in memory was read | +| `RamDiskBlocksEvicted` | Total number of blocks evicted in memory | +| `RamDiskBlocksEvictedWithoutRead` | Total number of blocks evicted in memory without ever being read from memory | +| `RamDiskBlocksEvictionWindowMsNumOps` | Number of blocks evicted in memory| +| `RamDiskBlocksEvictionWindowMsAvgTime` | Average time of blocks in memory before being evicted in milliseconds | +| `RamDiskBlocksEvictionWindows`*num*`s(50|75|90|95|99)thPercentileLatency` | The 50/75/90/95/99th percentile of latency between memory write and eviction in milliseconds. Percentile measurement is off by default, by watching no intervals. The intervals are specified by `dfs.metrics.percentiles.intervals`. | +| `RamDiskBlocksLazyPersisted` | Total number of blocks written to disk by lazy writer | +| `RamDiskBlocksDeletedBeforeLazyPersisted` | Total number of blocks deleted by application before being persisted to disk | +| `RamDiskBytesLazyPersisted` | Total number of bytes written to disk by lazy writer | +| `RamDiskBlocksLazyPersistWindowMsNumOps` | Number of blocks written to disk by lazy writer | +| `RamDiskBlocksLazyPersistWindowMsAvgTime` | Average time of blocks written to disk by lazy writer in milliseconds | +| `RamDiskBlocksLazyPersistWindows`*num*`s(50|75|90|95|99)thPercentileLatency` | The 50/75/90/95/99th percentile of latency between memory write and disk persist in milliseconds. Percentile measurement is off by default, by watching no intervals. The intervals are specified by `dfs.metrics.percentiles.intervals`. | | `FsyncCount` | Total number of fsync | | `VolumeFailures` | Total number of volume failures occurred | | `ReadBlockOpNumOps` | Total number of read operations | --------------------------------------------------------------------- To unsubscribe, e-mail: common-commits-unsubscribe@hadoop.apache.org For additional commands, e-mail: common-commits-help@hadoop.apache.org