Merge branch '8784-dir-listings'

[arvados.git] / doc / install / install-crunch-dispatch.html.textile.liquid

diff --git a/doc/install/install-crunch-dispatch.html.textile.liquid b/doc/install/install-crunch-dispatch.html.textile.liquid
index d632f9bbd61974966499090bed0c71949633edac..e0ed14769468877b7af4ca7fe533ab1a9ea61966 100644 (file)
--- a/doc/install/install-crunch-dispatch.html.textile.liquid
+++ b/doc/install/install-crunch-dispatch.html.textile.liquid
@@ -4,6 +4,11 @@ navsection: installguide
 title: Install the Crunch dispatcher
 
 ...
+{% comment %}
+Copyright (C) The Arvados Authors. All rights reserved.
+
+SPDX-License-Identifier: CC-BY-SA-3.0
+{% endcomment %}
 
 The dispatcher normally runs on the same host/VM as the API server.
 
@@ -58,9 +63,14 @@ On Debian-based systems:
 </code></pre>
 </notextile>
 
-On Red Hat-based systems, "install SLURM and munge from source following their installation guide":https://computing.llnl.gov/linux/slurm/quickstart_admin.html.
+On Red Hat-based systems:
 
-Now we need to give SLURM a configuration file in @/etc/slurm-llnl/slurm.conf@. Here's an example:
+<notextile>
+<pre><code>~$ <span class="userinput">sudo yum install slurm munge slurm-munge</span>
+</code></pre>
+</notextile>
+
+Now we need to give SLURM a configuration file.  On Debian-based systems, this is installed at @/etc/slurm-llnl/slurm.conf@.  On Red Hat-based systems, this is installed at @/etc/slurm/slurm.conf@.  Here's an example @slurm.conf@:
 
 <notextile>
 <pre>
@@ -90,9 +100,8 @@ Waittime=0
 # SCHEDULING
 SchedulerType=sched/backfill
 SchedulerPort=7321
-SelectType=select/cons_res
-SelectTypeParameters=CR_CPU_Memory
-FastSchedule=1
+SelectType=select/linear
+FastSchedule=0
 #
 # LOGGING
 SlurmctldDebug=3
@@ -125,8 +134,8 @@ Whenever you change this file, you will need to update the copy _on every comput
 Each hostname in @slurm.conf@ must also resolve correctly on all SLURM worker nodes as well as the controller itself. Furthermore, the hostnames used in the configuration file must match the hostnames reported by @hostname@ or @hostname -s@ on the nodes themselves. This applies to the ControlMachine as well as the worker nodes.
 
 For example:
-* In @/etc/slurm-llnl/slurm.conf@ on control and worker nodes: @ControlMachine=uuid_prefix.your.domain@
-* In @/etc/slurm-llnl/slurm.conf@ on control and worker nodes: @NodeName=compute[0-255]@
+* In @slurm.conf@ on control and worker nodes: @ControlMachine=uuid_prefix.your.domain@
+* In @slurm.conf@ on control and worker nodes: @NodeName=compute[0-255]@
 * In @/etc/resolv.conf@ on control and worker nodes: @search uuid_prefix.your.domain@
 * On the control node: @hostname@ reports @uuid_prefix.your.domain@
 * On worker node 123: @hostname@ reports @compute123.uuid_prefix.your.domain@
@@ -163,7 +172,9 @@ To dispatch Arvados jobs:
 * @crunch-job@ needs the installation path of the Perl SDK in its @PERLLIB@.
 * @crunch-job@ needs the @ARVADOS_API_HOST@ (and, if necessary, @ARVADOS_API_HOST_INSECURE@) environment variable set.
 
-We recommend you run @crunch-dispatch.rb@ under "runit":http://smarden.org/runit/ or a similar supervisor.  Here's an example runit service script:
+Install runit to monitor the Crunch dispatch daemon.  {% include 'install_runit' %}
+
+Install the script below as the run script for the Crunch dispatch service, modifying it as directed by the comments.
 
 <notextile>
 <pre><code>#!/bin/sh
@@ -175,8 +186,13 @@ rvmexec=""
 
 export ARVADOS_API_HOST=<span class="userinput">uuid_prefix.your.domain</span>
 export CRUNCH_DISPATCH_LOCKFILE=/var/lock/crunch-dispatch
+export HOME=$(pwd)
 export RAILS_ENV=production
 
+## Uncomment and edit this line if your compute nodes have cgroup info
+## somewhere other than /sys/fs/cgroup (e.g., "/cgroup" for CentOS 7)
+#export CRUNCH_CGROUP_ROOT="/sys/fs/cgroup"
+
 ## Uncomment this line if your cluster uses self-signed SSL certificates:
 #export ARVADOS_API_HOST_INSECURE=yes