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From Christian Rivasseau <christ...@lefty.io>
Subject Cannot connect to Hbase using mapreduce
Date Tue, 08 Dec 2020 16:10:49 GMT
Hello,

I am trying to setup a connection to hbase using hadoop 2.
I have a working deployment of hbase where the master is up and running,
sees its regionservers.
I have a working (not managed) zookeeper where zkCli.sh get /hbase/hbaseid
works from any
machine in the cluster.

Trying to setup the job like so:

conf.set("hbase.zookeeper.quorum",
"scaleway-data-c,scaleway-data-d,scaleway-data-e");
conf.set("hbase.zookeeper.property.clientPort", "2181");
conf.set("hbase.master", "scaleway-data-e:60000");

However the job fails with this error:

^C^C^C20/12/08 16:41:45 WARN zookeeper.ReadOnlyZKClient: 0x574a5837 to
scaleway-data-e:2181 failed for get of /hbase/hbaseid, code =
CONNECTIONLOSS, retries = 18
^C^C^C^C^C^C^C^C^C^C20/12/08 16:41:46 INFO zookeeper.ClientCnxn: Opening
socket connection to server scaleway-data-e/<unresolved>:2181
20/12/08 16:41:46 WARN zookeeper.ClientCnxn: Session 0x0 for server
scaleway-data-e/<unresolved>:2181, unexpected error, closing socket
connection and attempting reconnect
java.nio.channels.UnresolvedAddressException
at java.base/sun.nio.ch.Net.checkAddress(Net.java:139)
at
java.base/sun.nio.ch.SocketChannelImpl.checkRemote(SocketChannelImpl.java:727)
at
java.base/sun.nio.ch.SocketChannelImpl.connect(SocketChannelImpl.java:741)
at
org.apache.zookeeper.ClientCnxnSocketNIO.registerAndConnect(ClientCnxnSocketNIO.java:277)
at
org.apache.zookeeper.ClientCnxnSocketNIO.connect(ClientCnxnSocketNIO.java:287)
at
org.apache.zookeeper.ClientCnxn$SendThread.startConnect(ClientCnxn.java:1017)
at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1060)

I am extremely puzzled with this error as each server are listed in
/etc/hosts, they ping correctly.
In addition zkCli, hbase shell, everything works.

How is it possible that I get this UnresolvedAddressException error? Anyone
came accross this error?

Best,

-- 



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