From 3c6ec20955fc18549d3519e5ea3bcd46a09a13c9 Mon Sep 17 00:00:00 2001 From: Arun Suresh Date: Thu, 19 Jan 2017 06:14:28 -0800 Subject: [PATCH] YARN-6110. Fix opportunistic containers documentation. (Akira Ajisaka via asuresh) (cherry picked from commit 7e8d32147c701d5207feeb43cb3ae728e357d9dc) --- .../src/site/markdown/OpportunisticContainers.md | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/OpportunisticContainers.md b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/OpportunisticContainers.md index 223930e1bf7..496777abff7 100644 --- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/OpportunisticContainers.md +++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/OpportunisticContainers.md @@ -19,8 +19,8 @@ Opportunistic Containers * [Quick Guide](#Quick_Guide) * [Main Goal](#Main_Goal) * [Enabling Opportunistic Containers](#Enabling_Opportunistic_Containers) - * [Running a Sample Job](Running_a_Sample_Job) - * [Opportunistic Containers in Web UI](Opportunistic_Containers_in_Web_UI) + * [Running a Sample Job](#Running_a_Sample_Job) + * [Opportunistic Containers in Web UI](#Opportunistic_Containers_in_Web_UI) * [Overview](#Overview) * [Container Execution Types](#Container_Execution_Types) * [Execution of Opportunistic Containers](#Execution_of_Opportunistic_Containers) @@ -71,6 +71,7 @@ By default, allocation of opportunistic containers is performed centrally throug ###Running a Sample Job The following command can be used to run a sample pi map-reduce job, executing 40% of mappers using opportunistic containers (substitute `3.0.0-alpha2-SNAPSHOT` below with the version of Hadoop you are using): + ``` $ hadoop jar hadoop-3.0.0-alpha2-SNAPSHOT/share/hadoop/mapreduce/hadoop-mapreduce-examples-3.0.0-alpha2-SNAPSHOT.jar pi -Dmapreduce.job.num-opportunistic-maps-percent="40" 50 100 ``` @@ -81,6 +82,7 @@ By changing the value of `mapreduce.job.num-opportunistic-maps-percent` in the a ###Opportunistic Containers in Web UI When opportunistic container allocation is enabled, the following new columns can be observed in the Nodes page of the Web UI (`rm-address:8088/cluster/nodes`): + * Running Containers (O): number of running opportunistic containers on each node; * Mem Used (O): Total memory used by opportunistic containers on each node; * VCores Used (O): Total CPU virtual cores used by opportunistic containers on each node;