Support Questions
Find answers, ask questions, and share your expertise
Announcements
Alert: Welcome to the Unified Cloudera Community. Former HCC members be sure to read and learn how to activate your account here.

hbase region server can't connect to master

Highlighted

hbase region server can't connect to master

Explorer

Hi,

 

hbase regionserver can't connect to master, however connectivity exists

 

# master
2020-03-21 02:36:53,614 INFO [Thread-16] master.ServerManager: Waiting on regionserver count=0; waited=3174901ms, expecting min=1 server(s), max=NO_LIMIT server(s), timeout=30000ms, lastChange=-3174901ms
2020-03-21 02:36:54,287 WARN [master/gl-hdp-ctrl03:16000] assignment.AssignmentManager: No servers available; cannot place 1 unassigned regions.

# region server
Caused by: java.net.ConnectException: Call to gl-hdp-ctrl03.local/192.168.20.248:16000 failed on connection exception: org.apache.hbase.thirdparty.io.netty.channel.ConnectTimeoutException: connection timed out: gl-hdp-ctrl03.local/192.168.20.248:16000
at org.apache.hadoop.hbase.ipc.IPCUtil.wrapException(IPCUtil.java:166)
at org.apache.hadoop.hbase.ipc.AbstractRpcClient.onCallFinished(AbstractRpcClient.java:390)
at org.apache.hadoop.hbase.ipc.AbstractRpcClient.access$100(AbstractRpcClient.java:95)
at org.apache.hadoop.hbase.ipc.AbstractRpcClient$3.run(AbstractRpcClient.java:410)
at org.apache.hadoop.hbase.ipc.AbstractRpcClient$3.run(AbstractRpcClient.java:406)
at org.apache.hadoop.hbase.ipc.Call.callComplete(Call.java:103)
at org.apache.hadoop.hbase.ipc.Call.setException(Call.java:118)


# test connectivity from region server to master
$ telnet gl-hdp-ctrl03.local 16000
Trying 192.168.20.248...
Connected to gl-hdp-ctrl03.local.
Escape character is '^]'.

 

any thoughts?

thank you

Don't have an account?
Coming from Hortonworks? Activate your account here