From 9b949f49e382c883dedb086d0d5f169015af4055 Mon Sep 17 00:00:00 2001 From: Jason Lowe Date: Fri, 3 Mar 2017 07:57:37 -0600 Subject: [PATCH] YARN-6274. Documentation refers to incorrect nodemanager health checker interval property. Contributed by WeiWei Yang (cherry picked from commit 05237636d3a359dc502e8fa2d66bfdcea274f86c) --- .../hadoop-common/src/site/markdown/ClusterSetup.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/ClusterSetup.md b/hadoop-common-project/hadoop-common/src/site/markdown/ClusterSetup.md index 66c25e5d24f..a1c23079e26 100644 --- a/hadoop-common-project/hadoop-common/src/site/markdown/ClusterSetup.md +++ b/hadoop-common-project/hadoop-common/src/site/markdown/ClusterSetup.md @@ -208,7 +208,7 @@ The following parameters can be used to control the node health monitoring scrip |:---- |:---- |:---- | | `yarn.nodemanager.health-checker.script.path` | Node health script | Script to check for node's health status. | | `yarn.nodemanager.health-checker.script.opts` | Node health script options | Options for script to check for node's health status. | -| `yarn.nodemanager.health-checker.script.interval-ms` | Node health script interval | Time interval for running health script. | +| `yarn.nodemanager.health-checker.interval-ms` | Node health script interval | Time interval for running health script. | | `yarn.nodemanager.health-checker.script.timeout-ms` | Node health script timeout interval | Timeout for health script execution. | The health checker script is not supposed to give ERROR if only some of the local disks become bad. NodeManager has the ability to periodically check the health of the local disks (specifically checks nodemanager-local-dirs and nodemanager-log-dirs) and after reaching the threshold of number of bad directories based on the value set for the config property yarn.nodemanager.disk-health-checker.min-healthy-disks, the whole node is marked unhealthy and this info is sent to resource manager also. The boot disk is either raided or a failure in the boot disk is identified by the health checker script.