Which HBase version are you using? You are bringing up fresh cluster and not doing an upgrade right? Has Ambari successfully brought up NameNodes and DataNodes? How-many components are already running so far? Are they connected(e.g. NN and DN) and only RS is having trouble connecting to HM? Although telnet seems correct, can you also try "nc -zv gl-hdp-ctrl03.local 16000" from RS just to double check? Thanks
On 2020/03/20 23:45:28, Manuel Sopena Ballesteros <manuel...@garvan.org.au> wrote: > Dear HBase community, > > I am having an issue with my ambari hbase deployment where regionserver is > not able to connect to master > > Hbase Master log files: > 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. > > Hbase region server logs: > 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 idea of why region can't connect? > > Thank you very much > NOTICE > Please consider the environment before printing this email. This message and > any attachments are intended for the addressee named and may contain legally > privileged/confidential/copyright information. If you are not the intended > recipient, you should not read, use, disclose, copy or distribute this > communication. If you have received this message in error please notify us at > once by return email and then delete both messages. We accept no liability > for the distribution of viruses or similar in electronic communications. This > notice should not be removed. >
