[
https://issues.apache.org/jira/browse/HBASE-26898?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17515025#comment-17515025
]
LiangJun He commented on HBASE-26898:
-------------------------------------
I tested with patch from
[HBASE-26245|https://issues.apache.org/jira/browse/HBASE-26245], if we stop the
masters of the old cluster first, and then stop the regionservers, we can
successfully rebuild the new cluster from the existing rootdir, otherwise some
tests show that the new cluster there are some pending procedures, the new
clusters may still hang.
> Cannot rebuild a cluster from an existing root directory
> --------------------------------------------------------
>
> Key: HBASE-26898
> URL: https://issues.apache.org/jira/browse/HBASE-26898
> Project: HBase
> Issue Type: Bug
> Components: master
> Affects Versions: 3.0.0-alpha-2
> Reporter: LiangJun He
> Assignee: LiangJun He
> Priority: Major
> Fix For: 3.0.0-alpha-2
>
>
> When I tested to rebuild an HBase cluster, and the rootdir was configured as
> a existed directory (the directory was generated by another HBase cluster of
> the same version), I found the following error message：
> {code:java}
> java.net.UnknownHostException: Call to address=worker-1.cluster-xxx:16020
> failed on local exception: java.net.UnknownHostException:
> worker-1.cluster-xxx:16020 could not be resolved
> at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
> at
> sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
> at
> sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
> at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
> at org.apache.hadoop.hbase.ipc.IPCUtil.wrapException(IPCUtil.java:234)
> at
> org.apache.hadoop.hbase.ipc.AbstractRpcClient.onCallFinished(AbstractRpcClient.java:387)
> at
> org.apache.hadoop.hbase.ipc.AbstractRpcClient.access$100(AbstractRpcClient.java:93)
> at
> org.apache.hadoop.hbase.ipc.AbstractRpcClient$3.run(AbstractRpcClient.java:424)
> at
> org.apache.hadoop.hbase.ipc.AbstractRpcClient$3.run(AbstractRpcClient.java:419)
> at org.apache.hadoop.hbase.ipc.Call.callComplete(Call.java:119)
> at org.apache.hadoop.hbase.ipc.Call.setException(Call.java:134)
> at
> org.apache.hadoop.hbase.ipc.NettyRpcConnection.lambda$sendRequest$4(NettyRpcConnection.java:351)
> at
> org.apache.hbase.thirdparty.io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:164)
> at
> org.apache.hbase.thirdparty.io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:469)
> at
> org.apache.hbase.thirdparty.io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:384)
> at
> org.apache.hbase.thirdparty.io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:986)
> at
> org.apache.hbase.thirdparty.io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
> at
> org.apache.hbase.thirdparty.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
> at java.lang.Thread.run(Thread.java:748)
> Caused by: java.net.UnknownHostException: worker-1.cluster-xxx:16020 could
> not be resolved
> at
> org.apache.hadoop.hbase.ipc.RpcConnection.getRemoteInetAddress(RpcConnection.java:192)
> at
> org.apache.hadoop.hbase.ipc.NettyRpcConnection.connect(NettyRpcConnection.java:275)
> at
> org.apache.hadoop.hbase.ipc.NettyRpcConnection.access$800(NettyRpcConnection.java:78)
> at
> org.apache.hadoop.hbase.ipc.NettyRpcConnection$4.run(NettyRpcConnection.java:325)
> at
> org.apache.hadoop.hbase.ipc.HBaseRpcControllerImpl.notifyOnCancel(HBaseRpcControllerImpl.java:262)
> at
> org.apache.hadoop.hbase.ipc.NettyRpcConnection.sendRequest0(NettyRpcConnection.java:308)
> at
> org.apache.hadoop.hbase.ipc.NettyRpcConnection.lambda$sendRequest$4(NettyRpcConnection.java:349)
> {code}
> Eventually, I fail to create the cluster.
> But for cloud environments, this operation is a common scenario（Rebuild a
> cluster from an existing rootdir directory）
>
>
--
This message was sent by Atlassian Jira
(v8.20.1#820001)
