[jira] [Commented] (HDFS-14952) Skip safemode if blockSafe is 0 in new NN

2019-11-04 Thread Xiaoqiao He (Jira) 


[ 
https://issues.apache.org/jira/browse/HDFS-14952?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16966788#comment-16966788
 ] 

Xiaoqiao He commented on HDFS-14952:


[^HDFS-14952.001.patch] try to correct the extension period for new cluster 
setup, FYI.

> Skip safemode if blockSafe is 0 in new NN
> -
>
> Key: HDFS-14952
> URL: https://issues.apache.org/jira/browse/HDFS-14952
> Project: Hadoop HDFS
>  Issue Type: Improvement
>  Components: namenode
>Reporter: Rajesh Balamohan
>Priority: Trivial
>  Labels: performance
> Attachments: HDFS-14952.001.patch
>
>
> When new NN is installed, it spends 30-45 seconds in Safemode. When 
> {{blockTotal}} is 0, it should be possible to short circuit safemode check in 
> {{BlockManagerSafeMode::areThresholdsMet}}.
> https://github.com/apache/hadoop/blob/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/BlockManagerSafeMode.java#L571



--
This message was sent by Atlassian Jira
(v8.3.4#803005)

-
To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org
For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org

[jira] [Commented] (HDFS-14952) Skip safemode if blockSafe is 0 in new NN

2019-11-04 Thread Xiaoqiao He (Jira) 


[ 
https://issues.apache.org/jira/browse/HDFS-14952?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16966781#comment-16966781
 ] 

Xiaoqiao He commented on HDFS-14952:


Thanks [~rajesh.balamohan] for your report. It speeds extension period (~30s by 
default) to leave safemode automatically when block thresholds are met. Agree 
that we should not wait extension period when initialize new cluster.

> Skip safemode if blockSafe is 0 in new NN
> -
>
> Key: HDFS-14952
> URL: https://issues.apache.org/jira/browse/HDFS-14952
> Project: Hadoop HDFS
>  Issue Type: Improvement
>  Components: namenode
>Reporter: Rajesh Balamohan
>Priority: Trivial
>  Labels: performance
>
> When new NN is installed, it spends 30-45 seconds in Safemode. When 
> {{blockTotal}} is 0, it should be possible to short circuit safemode check in 
> {{BlockManagerSafeMode::areThresholdsMet}}.
> https://github.com/apache/hadoop/blob/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/BlockManagerSafeMode.java#L571



--
This message was sent by Atlassian Jira
(v8.3.4#803005)

-
To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org
For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org