ChenSammi commented on a change in pull request #1469: HDDS-2034. Async RATIS
pipeline creation and destroy through heartbea…
URL: https://github.com/apache/hadoop/pull/1469#discussion_r326968982
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File path: hadoop-hdds/common/src/main/resources/ozone-default.xml
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@@ -1388,6 +1379,25 @@
</description>
</property>
+ <property>
+ <name>hdds.scm.safemode.pipeline.creation</name>
+ <value>true</value>
+ <tag>HDDS,SCM,OPERATION</tag>
+ <description>
+ Boolean value to enable background pipeline creation in SCM safe mode.
+ </description>
+ </property>
+
+ <property>
+ <name>hdds.scm.safemode.min.pipeline</name>
Review comment:
When a new cluster startup, it will exit safemode immediately currently.
Because there is pipeline to wait for it's report from datanode. So if we
don't add a min pipeline threshold, we will exit safemode without any pipeline
ready to use.
The desired state is when safenode off, Ozone should be ready for read/write
object.
Thant's the reason this property is added.
HDDS_SCM_SAFEMODE_HEALTHY_PIPELINE_THRESHOLD_PCT_DEFAULT cannot fulfill this
purpose, because the total pipeline number at the start of a new cluster is 0.
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