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Posted to common-commits@hadoop.apache.org by sn...@apache.org on 2021/09/08 14:03:26 UTC
[hadoop] branch trunk updated: Add documentation for YARN-10623
auto refresh queue conf in CS (#3279)
This is an automated email from the ASF dual-hosted git repository.
snemeth pushed a commit to branch trunk
in repository https://gitbox.apache.org/repos/asf/hadoop.git
The following commit(s) were added to refs/heads/trunk by this push:
new 3024a47 Add documentation for YARN-10623 auto refresh queue conf in CS (#3279)
3024a47 is described below
commit 3024a4702676632f3de71196fe5c2714eae1905f
Author: zhuqi <82...@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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