[jira] [Comment Edited] (HDFS-14126) DataNode DirectoryScanner holding global lock for too long

2019-07-24 Thread Mingchen_Ma (JIRA)
[ https://issues.apache.org/jira/browse/HDFS-14126?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16892409#comment-16892409 ] Mingchen_Ma edited comment on HDFS-14126 at 7/25/19 4:41 AM: -

[jira] [Commented] (HDFS-14126) DataNode DirectoryScanner holding global lock for too long

2019-07-24 Thread Mingchen_Ma (JIRA)
[ https://issues.apache.org/jira/browse/HDFS-14126?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16892409#comment-16892409 ] Mingchen_Ma commented on HDFS-14126: why we use readwritelock instead of lock? > Dat

[jira] [Created] (HDFS-12330) when we move symlink to symlink ,rename will move the real dir to symlink

2017-08-21 Thread Mingchen_Ma (JIRA)
Mingchen_Ma created HDFS-12330: -- Summary: when we move symlink to symlink ,rename will move the real dir to symlink Key: HDFS-12330 URL: https://issues.apache.org/jira/browse/HDFS-12330 Project: Hadoop H