04-14-2017 12:13 PM
In my HDFS health summary and logs i am able to see the below error.
ERROR org.Apache.hadoop.hdfs.server.database.DataNode: email@example.com:1004: DataXceiver error processing Roadblock operation..
I tried to rebalance but still i see the warnings in HDFS and also above error in /var/log/hadoop-hdfs.
I do saw a open jira https://issues.apache.org/jira/browse/HDFS-11346 but not sure if this is applicable to my issue or errors o notice.
Any help appreciated.
04-17-2017 10:01 AM
04-17-2017 10:46 AM
Yes itas always the same host thats reading..
I am not able to the see the values or entrire for dfs.datanode.max.xcievers, dfs.datanode.max.transfer.threads in the hdfs-site.xml
04-17-2017 10:59 AM
04-19-2017 09:47 AM
CDH version is 5.4.4.
There are just 18 nodes in the cluster.there are no hardware alerts if so by now the unix monitoring team would have raised the flag or ticket on it.