java.net.ConnectException: Call From hn0-FooBar/10.XXX.XXX.XXX to hn1-FooBar.xyzabcxyzabc.ax.internal.cloudapp.net:8020 failed on connection exception: java.net.ConnectException: Connection refused; For more details see: http://wiki.apache.org/hadoop/ConnectionRefused

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This was a bug at HBase 1.0.1, it has been patched, so an update to 1.0.2 or further should solve the problem. URL for the Jira thread: https://goo.gl/c5oa6f

Solutions on the web

via Stack Overflow by Nihal Bhagchandani
, 1 year ago
Call From hn0-FooBar/10.XXX.XXX.XXX to hn1-FooBar.xyzabcxyzabc.ax.internal.cloudapp.net:8020 failed on connection exception: java.net.ConnectException: Connection refused; For more details see: http://wiki.apache.org/hadoop/ConnectionRefused
via hbase-user by louis.hust, 1 year ago
Call From l-hbase2.dba.dev.cn0.qunar.com/10.86.36.218 to l-hbase1.dba.dev.cn0:8020 failed on connection exception: java.net.ConnectException: Connection timed out; For more details see: http://wiki.apache.org/hadoop/ConnectionRefused
via hbase-user by louis.hust, 1 year ago
Call From l-hbase2.dba.dev.cn0.qunar.com/10.86.36.218 to l-hbase1.dba.dev.cn0:8020 failed on connection exception: java.net.ConnectException: Connection timed out; For more details see: http://wiki.apache.org/hadoop/ConnectionRefused
via hbase-user by Esteban Gutierrez, 1 year ago
Connection timed out; For more details see: http://wiki.apache.org/hadoop/ConnectionRefused
via hbase-user by Esteban Gutierrez, 1 year ago
Connection timed out; For more details see: http://wiki.apache.org/hadoop/ConnectionRefused
via osdir.com by Unknown author, 1 year ago
Call >From maskserver2/3.3.3.3 to maskserver21:56372 failed on connection exception: java.net.ConnectException: Connection refused; For more details see:  http://wiki.apache.org/hadoop/ConnectionRefused
java.net.ConnectException: Connection refused
at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:744)
at org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:206)
at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:531)
at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:495)
at org.apache.hadoop.ipc.Client$Connection.setupConnection(Client.java:617)
at org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:715)
at org.apache.hadoop.ipc.Client$Connection.access$2900(Client.java:378)
at org.apache.hadoop.ipc.Client.getConnection(Client.java:1492)
at org.apache.hadoop.ipc.Client.call(Client.java:1402)
at org.apache.hadoop.ipc.Client.call(Client.java:1363)
at com.sun.proxy.$Proxy9.transitionToStandby(Unknown Source)
at org.apache.hadoop.ha.protocolPB.HAServiceProtocolClientSideTranslatorPB.transitionToStandby(HAServiceProtocolClientSideTranslatorPB.java:112)
at org.apache.hadoop.ha.FailoverController.tryGracefulFence(FailoverController.java:172)
at org.apache.hadoop.ha.ZKFailoverController.doFence(ZKFailoverController.java:514)
at org.apache.hadoop.ha.ZKFailoverController.fenceOldActive(ZKFailoverController.java:505)
at org.apache.hadoop.ha.ZKFailoverController.access$1100(ZKFailoverController.java:61)
at org.apache.hadoop.ha.ZKFailoverController$ElectorCallbacks.fenceOldActive(ZKFailoverController.java:892)
at org.apache.hadoop.ha.ActiveStandbyElector.fenceOldActive(ActiveStandbyElector.java:956)
at org.apache.hadoop.ha.ActiveStandbyElector.becomeActive(ActiveStandbyElector.java:855)
at org.apache.zookeeper.ClientCnxn$EventThread.processEvent(ClientCnxn.java:611)

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