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new 3024a47 Add documentation for YARN-10623 auto refresh queue conf in
CS (#3279)
3024a47 is described below
commit 3024a4702676632f3de71196fe5c2714eae1905f
Author: zhuqi <821684...@qq.com>
AuthorDate: Wed Sep 8 22:03:15 2021 +0800
Add documentation for YARN-10623 auto refresh queue conf in CS (#3279)
---
.../hadoop-yarn-site/src/site/markdown/CapacityScheduler.md | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/CapacityScheduler.md
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/CapacityScheduler.md
index 254c51a..d35869c 100644
---
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/CapacityScheduler.md
+++
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/CapacityScheduler.md
@@ -831,6 +831,14 @@ Changing queue/scheduler properties and adding/removing
queues can be done in tw
Remove the queue configurations from the file and run refresh as described
above
+### Enabling periodic configuration refresh
+Enabling queue configuration periodic refresh allows reloading and applying
the configuration by editing the *conf/capacity-scheduler.xml* without the
necessicity of calling yarn rmadmin -refreshQueues.
+
+| Property | Description |
+|:---- |:---- |
+| `yarn.resourcemanager.scheduler.monitor.enable` | Enabling monitoring is
necessary for the periodic refresh. Default value is false. |
+| `yarn.resourcemanager.scheduler.monitor.policies` | This is a configuration
property that holds a list of classes. Adding more classes means more monitor
tasks will be launched, Add
`org.apache.hadoop.yarn.server.resourcemanager.capacity.QueueConfigurationAutoRefreshPolicy`
to the policies list to enable the periodic refresh. Default value of this
property is
`org.apache.hadoop.yarn.server.resourcemanager.monitor.capacity.ProportionalCapacityPreemptionPolicy`,
it means the preemption f [...]
+| `yarn.resourcemanager.queue.auto.refresh.monitoring-interval` | Adjusting
the auto-refresh monitoring interval is possible with this configuration
property. The value is in milliseconds. The default value is 5000 (5 seconds). |
### Changing queue configuration via API
Editing by API uses a backing store for the scheduler configuration. To
enable this, the following parameters can be configured in yarn-site.xml.
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