---
layout: default
-navsection: admin
-title: Migrating Configuration
+navsection: installguide
+title: Migrating Configuration from v1.4 to v2.0
...
{% comment %}
SPDX-License-Identifier: CC-BY-SA-3.0
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-Arvados is migrating to a centralized configuration file for all components. The centralized Arvados configuration is @/etc/arvados/config.yml@. Components that support the new centralized configuration are listed below. Components not listed here do not yet support centralized configuration. During the migration period, legacy configuration files will continue to be loaded and take precedence over the centralized configuration file.
+{% include 'notebox_begin_warning' %}
+_New installations of Arvados 2.0+ can skip this section_
+{% include 'notebox_end' %}
+
+Arvados 2.0 migrates to a centralized configuration file for all components. The centralized Arvados configuration is @/etc/arvados/config.yml@. Components that support the new centralized configuration are listed below. During the migration period, legacy configuration files are still loaded and take precedence over the centralized configuration file.
h2. API server
This command will also report if no migrations are required.
-h2. crunch-dispatch-slurm
-
-Currently only reads @InstanceTypes@ from centralized configuration. Still requires component-specific configuration file.
+h2. keepstore, keep-web, crunch-dispatch-slurm, arvados-ws, keepproxy, arv-git-httpd, keep-balance
-h2(#keepstore). keepstore
+The legacy config for each component (loaded from @/etc/arvados/component/component.yml@ or a different location specified via the -legacy-component-config command line argument) takes precedence over the centralized config. After you migrate everything from the legacy config to the centralized config, you should delete @/etc/arvados/component/component.yml@ and/or stop using the corresponding -legacy-component-config argument.
-The legacy keepstore config (loaded from @/etc/arvados/keepstore/keepstore.yml@ or a different location specified via -legacy-keepstore-config command line argument) takes precedence over the centralized config. After you migrate everything from the legacy config to the centralized config, you should delete @/etc/arvados/keepstore/keepstore.yml@ and stop using the -legacy-keepstore-config argument.
+To migrate a component configuration, do this on each node that runs an Arvados service:
-If a legacy config file exists when a keepstore process starts up, its log messages will provide instructions for migrating configuration values from the legacy config file to the new centralized config file. Installing the @arvados-server@ package and running @arvados-server config-check@ will also display these migration instructions. After making these changes, run @arvados-server config-check@ (or restart keepstore and check startup logs) and repeat as needed. When this process is complete, you should delete the legacy config file, copy the updated centralized config file to your next keepstore server, and repeat the same process there.
+# Ensure that the latest @config.yml@ is installed on the current node
+# Install @arvados-server@ using @apt-get@ or @yum@.
+# Run @arvados-server config-check@, review and apply the recommended changes to @/etc/arvados/config.yml@
+# After applying changes, re-run @arvados-server config-check@ again to check for additional warnings and recommendations.
+# When you are satisfied, delete the legacy config file, restart the service, and check its startup logs.
+# Copy the updated @config.yml@ file to your next node, and repeat the process there.
+# When you have a @config.yml@ file that includes all volumes on all keepstores, it is important to add a 'Rendezvous' parameter to the InternalURLs entries to make sure the old volume identifiers line up with the new config. If you don't do this, @keep-balance@ will want to shuffle all the existing data around to match the new volume order. The 'Rendezvous' value should be the last 15 characters of the keepstore's UUID in the old configuration. Here's an example:
-After migrating and removing all legacy keepstore config files, make sure the @/etc/arvados/config.yml@ file is identical across all system nodes -- API server, keepstore, etc. -- and restart all services to make sure they are using the latest configuration.
+<notextile>
+<pre><code>Clusters:
+ xxxxx:
+ Services:
+ Keepstore:
+ InternalURLs:
+ "http://keep1.xxxxx.arvadosapi.com:25107": {Rendezvous: "eim6eefaibesh3i"}
+ "http://keep2.xxxxx.arvadosapi.com:25107": {Rendezvous: "yequoodalai7ahg"}
+ "http://keep3.xxxxx.arvadosapi.com:25107": {Rendezvous: "eipheho6re1shou"}
+ "http://keep4.xxxxx.arvadosapi.com:25107": {Rendezvous: "ahk7chahthae3oo"}
+</code></pre>
+</notextile>
-h2(#keepproxy). keepproxy
+In this example, the keepstore with the name `keep1` had the uuid `xxxxx-bi6l4-eim6eefaibesh3i` in the old configuration.
-The legacy keepproxy config (loaded from @/etc/arvados/keepproxy/keepproxy.yml@ or a different location specified via -legacy-keepproxy-config command line argument) takes precedence over the centralized config. After you migrate everything from the legacy config to the centralized config, you should delete @/etc/arvados/keepproxy/keepproxy.yml@ and stop using the -legacy-keepproxy-config argument.
+After migrating and removing all legacy config files, make sure the @/etc/arvados/config.yml@ file is identical across all system nodes -- API server, keepstore, etc. -- and restart all services to make sure they are using the latest configuration.
-h2(#arv-git-httpd). arv-git-httpd
+h2. Cloud installations only: node manager
-The legacy arv-git-httpd config (loaded from @/etc/arvados/git-httpd/git-httpd.yml@ or a different location specified via -legacy-git-httpd-config command line argument) takes precedence over the centralized config. After you migrate everything from the legacy config to the centralized config, you should delete @/etc/arvados/git-httpd/git-httpd.yml@ and stop using the -legacy-git-httpd-config argument.
+Node manager is deprecated and replaced by @arvados-dispatch-cloud@. No automated config migration is available. Follow the instructions to "install the cloud dispatcher":../install/crunch2-cloud/install-dispatch-cloud.html
+*Only one dispatch process should be running at a time.* If you are migrating a system that currently runs Node manager and @crunch-dispatch-slurm@, it is safest to remove the @crunch-dispatch-slurm@ service entirely before installing @arvados-dispatch-cloud@.
-h2. arvados-controller
-
-Already uses centralized config exclusively. No migration needed.
+<notextile>
+<pre><code>~$ <span class="userinput">sudo systemctl --now disable crunch-dispatch-slurm</span>
+~$ <span class="userinput">sudo apt-get remove crunch-dispatch-slurm</span>
+</code></pre>
+</notextile>
-h2. arvados-dispatch-cloud
+h2. arvados-controller, arvados-dispatch-cloud
Already uses centralized config exclusively. No migration needed.
projects / arvados.git / blobdiff