Attila Doroszlai created HDDS-2346:
--------------------------------------
Summary: Replication manager config has wrong description
Key: HDDS-2346
URL: https://issues.apache.org/jira/browse/HDDS-2346
Project: Hadoop Distributed Data Store
Issue Type: Bug
Components: SCM
Reporter: Attila Doroszlai
Assignee: Attila Doroszlai
Replication manager's configuration for its own interval:
{code:title=https://github.com/apache/hadoop-ozone/blob/eb1d77e3206fab1a4ac0573507c9deb2b56b9ea1/hadoop-hdds/server-scm/src/main/java/org/apache/hadoop/hdds/scm/container/ReplicationManager.java#L808-L822}
@Config(key = "thread.interval",
type = ConfigType.TIME,
defaultValue = "300s",
tags = {SCM, OZONE},
description = "When a heartbeat from the data node arrives on SCM, "
+ "It is queued for processing with the time stamp of when the "
+ "heartbeat arrived. There is a heartbeat processing thread "
+ "inside "
+ "SCM that runs at a specified interval. This value controls how "
+ "frequently this thread is run.\n\n"
+ "There are some assumptions build into SCM such as this "
+ "value should allow the heartbeat processing thread to run at "
+ "least three times more frequently than heartbeats and at least "
+ "five times more than stale node detection time. "
+ "If you specify a wrong value, SCM will gracefully refuse to "
+ "run. "
+ "For more info look at the node manager tests in SCM.\n"
+ "\n"
+ "In short, you don't need to change this."
)
{code}
duplicates SCM heartbeat interval doc:
{code:title=https://github.com/apache/hadoop-ozone/blob/eb1d77e3206fab1a4ac0573507c9deb2b56b9ea1/hadoop-hdds/common/src/main/resources/ozone-default.xml#L973-L991}
<property>
<name>ozone.scm.heartbeat.thread.interval</name>
<value>3s</value>
<tag>OZONE, MANAGEMENT</tag>
<description>
When a heartbeat from the data node arrives on SCM, It is queued for
processing with the time stamp of when the heartbeat arrived. There is a
heartbeat processing thread inside SCM that runs at a specified interval.
This value controls how frequently this thread is run.
There are some assumptions build into SCM such as this value should allow
the heartbeat processing thread to run at least three times more
frequently than heartbeats and at least five times more than stale node
detection time. If you specify a wrong value, SCM will gracefully refuse
to run. For more info look at the node manager tests in SCM.
In short, you don't need to change this.
</description>
</property>
{code}
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
---------------------------------------------------------------------
To unsubscribe, e-mail: hdfs-dev-unsubscr...@hadoop.apache.org
For additional commands, e-mail: hdfs-dev-h...@hadoop.apache.org
