[jira] [Commented] (HDFS-8315) Datanode does not log reads

[ https://issues.apache.org/jira/browse/HDFS-8315?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=14534707#comment-14534707 ] Kihwal Lee commented on HDFS-8315: -- Changing log level of ClientTraceLog to debug will

[jira] [Commented] (HDFS-8315) Datanode does not log reads

[ https://issues.apache.org/jira/browse/HDFS-8315?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=14529178#comment-14529178 ] Gopal V commented on HDFS-8315: --- [~kihwal]: the HDFS in-memory layer is IOPS bound on logging

[jira] [Commented] (HDFS-8315) Datanode does not log reads

[ https://issues.apache.org/jira/browse/HDFS-8315?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=14526946#comment-14526946 ] Haohui Mai commented on HDFS-8315: -- Can you elaborate how you debug the load issues based

[jira] [Commented] (HDFS-8315) Datanode does not log reads

[ https://issues.apache.org/jira/browse/HDFS-8315?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=14527002#comment-14527002 ] Kihwal Lee commented on HDFS-8315: -- If accesses to a small set of blocks create hot spots,

[jira] [Commented] (HDFS-8315) Datanode does not log reads

[ https://issues.apache.org/jira/browse/HDFS-8315?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=14527052#comment-14527052 ] Arpit Agarwal commented on HDFS-8315: - Hi Kihwal, IIRC [~gopalv] had some data

[jira] [Commented] (HDFS-8315) Datanode does not log reads

[ https://issues.apache.org/jira/browse/HDFS-8315?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=14527350#comment-14527350 ] Hadoop QA commented on HDFS-8315: - \\ \\ | (x) *{color:red}-1 overall{color}* | \\ \\ ||