I am still trying to run accumulo 2.0.1
Question: instead of
./bin/start-all.sh you use what in 2.0.1 ?Gesendet: Freitag, 09. Juli 2021 um 17:15 Uhr
Von: "Christopher" <ctubb...@apache.org>
An: "accumulo-user" <user@accumulo.apache.org>
Betreff: Re: Re: Re: Hadoop ConnectException
Von: "Christopher" <ctubb...@apache.org>
An: "accumulo-user" <user@accumulo.apache.org>
Betreff: Re: Re: Re: Hadoop ConnectException
Oh, so you weren't able to get 2.0.1 working? That's unfortunate. If
you try 2.0.1 again and are able to figure out how to get past the
issue you were having, feel free to let us know what you did
differently.
On Fri, Jul 9, 2021 at 10:56 AM Christine Buss <christine.buss...@gmx.de> wrote:
>
>
> yes of course!
> I deleted accumulo 2.0.1 and installed accumulo 1.10.1.
> Then edited the conf/ files. I think I didn't do that right before.
> And then it worked.
>
> Gesendet: Freitag, 09. Juli 2021 um 16:30 Uhr
> Von: "Christopher" <ctubb...@apache.org>
> An: "accumulo-user" <user@accumulo.apache.org>
> Betreff: Re: Re: Hadoop ConnectException
> Glad to hear you got it working! Can you share what your solution was in case it helps others?
>
> On Fri, Jul 9, 2021, 10:20 Christine Buss <christine.buss...@gmx.de> wrote:
>>
>>
>> It works!! Thanks a lot to veryone!
>> I worked through all your hints and suggestions.
>>
>> Gesendet: Donnerstag, 08. Juli 2021 um 18:18 Uhr
>> Von: "Ed Coleman" <edcole...@apache.org>
>> An: user@accumulo.apache.org
>> Betreff: Re: Hadoop ConnectException
>>
>> According to the Hadoop getting started guide (https://hadoop.apache.org/docs/stable/hadoop-project-dist/hadoop-common/SingleCluster.html) the resouce manager runs at: http://localhost:8088/
>>
>> Can you run hadoop commands like:
>> > hadoop fs -ls /accumulo (or whatever you've decided on as the destination for files)
>>
>> Did you check that accumulo-env.sh and other configuration files have been set-up for your environemnt?
>>
>>
>> On 2021/07/07 15:20:41, Christine Buss <christine.buss...@gmx.de> wrote:
>> > Hi,
>> >
>> >
>> >
>> > I am using:
>> >
>> > Java 11
>> >
>> > Ubuntu 20.04.2
>> >
>> > Hadoop 3.3.1
>> >
>> > Zookeeper 3.7.0
>> >
>> > Accumulo 2.0.1
>> >
>> >
>> >
>> >
>> >
>> > I followed the instructions here:
>> >
>> > https://hadoop.apache.org/docs/stable/hadoop-project-dist/hadoop-
>> > common/SingleCluster.html
>> >
>> > and edited `etc/hadoop/hadoop-env.sh`, etc/hadoop/core-site.xml,
>> > etc/hadoop/hdfs-site.xml accordingly.
>> >
>> > 'ssh localhost' works without a passphrase.
>> >
>> >
>> >
>> > Then I started Zookeper, start-dfs.sh and start-yarn.sh:
>> >
>> > christine@centauri:~$ ./zookeeper-3.4.9/bin/zkServer.sh start
>> > ZooKeeper JMX enabled by default
>> > Using config: /home/christine/zookeeper-3.4.9/bin/../conf/zoo.cfg
>> > Starting zookeeper ... STARTED
>> > christine@centauri:~$ ./hadoop-3.3.1/sbin/start-dfs.sh
>> > Starting namenodes on [localhost]
>> > Starting datanodes
>> > Starting secondary namenodes [centauri]
>> > centauri: Warning: Permanently added
>> > 'centauri,2003:d4:771c:3b00:7223:40a1:4c07:7c7b' (ECDSA) to the list of known
>> > hosts.
>> > christine@centauri:~$ ./hadoop-3.3.1/sbin/start-yarn.sh
>> > Starting resourcemanager
>> > Starting nodemanagers
>> > christine@centauri:~$ jps
>> > 3921 Jps
>> > 2387 QuorumPeerMain
>> > 3171 SecondaryNameNode
>> > 3732 NodeManager
>> > 2955 DataNode
>> > 3599 ResourceManager
>> >
>> >
>> >
>> > BUT
>> >
>> > when running 'accumulo init' I get this Error:
>> >
>> > hristine@centauri:~$ ./accumulo-2.0.1/bin/accumulo init
>> > OpenJDK 64-Bit Server VM warning: Option UseConcMarkSweepGC was deprecated in
>> > version 9.0 and will likely be removed in a future release.
>> > 2021-07-07 15:59:05,590 [conf.SiteConfiguration] INFO : Found Accumulo
>> > configuration on classpath at
>> > /home/christine/accumulo-2.0.1/conf/accumulo.properties
>> > 2021-07-07 15:59:08,460 [fs.VolumeManagerImpl] WARN : dfs.datanode.synconclose
>> > set to false in hdfs-site.xml: data loss is possible on hard system reset or
>> > power loss
>> > 2021-07-07 15:59:08,461 [init.Initialize] INFO : Hadoop Filesystem is
>> > hdfs://localhost:9000
>> > 2021-07-07 15:59:08,461 [init.Initialize] INFO : Accumulo data dirs are
>> > [hdfs://localhost:8020/accumulo]
>> > 2021-07-07 15:59:08,461 [init.Initialize] INFO : Zookeeper server is
>> > localhost:2181
>> > 2021-07-07 15:59:08,461 [init.Initialize] INFO : Checking if Zookeeper is
>> > available. If this hangs, then you need to make sure zookeeper is running
>> > 2021-07-07 15:59:08,938 [init.Initialize] ERROR: Fatal exception
>> > java.io.IOException: Failed to check if filesystem already initialized
>> > at org.apache.accumulo.server.init.Initialize.checkInit(Initialize.java:285)
>> > at org.apache.accumulo.server.init.Initialize.doInit(Initialize.java:323)
>> > at org.apache.accumulo.server.init.Initialize.execute(Initialize.java:991)
>> > at org.apache.accumulo.start.Main.lambda$execKeyword$0(Main.java:129)
>> > at java.base/java.lang.Thread.run(Thread.java:829)
>> > Caused by: java.net.ConnectException: Call From centauri/192.168.178.30 to
>> > localhost:8020 failed on connection exception: java.net.ConnectException:
>> > Connection refused; For more details see:
>> > http://wiki.apache.org/hadoop/ConnectionRefused
>> > at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
>> > at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
>> > at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
>> > at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:490)
>> > at org.apache.hadoop.net.NetUtils.wrapWithMessage(NetUtils.java:913)
>> > at org.apache.hadoop.net.NetUtils.wrapException(NetUtils.java:828)
>> > at org.apache.hadoop.ipc.Client.getRpcResponse(Client.java:1577)
>> > at org.apache.hadoop.ipc.Client.call(Client.java:1519)
>> > at org.apache.hadoop.ipc.Client.call(Client.java:1416)
>> > at org.apache.hadoop.ipc.ProtobufRpcEngine2$Invoker.invoke(ProtobufRpcEngine2.java:242)
>> > at org.apache.hadoop.ipc.ProtobufRpcEngine2$Invoker.invoke(ProtobufRpcEngine2.java:129)
>> > at com.sun.proxy.$Proxy18.getFileInfo(Unknown Source)
>> > at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.getFileInfo(ClientNamenodeProtocolTranslatorPB.java:965)
>> > at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>> > at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
>> > at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>> > at java.base/java.lang.reflect.Method.invoke(Method.java:566)
>> > at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:422)
>> > at org.apache.hadoop.io.retry.RetryInvocationHandler$Call.invokeMethod(RetryInvocationHandler.java:165)
>> > at org.apache.hadoop.io.retry.RetryInvocationHandler$Call.invoke(RetryInvocationHandler.java:157)
>> > at org.apache.hadoop.io.retry.RetryInvocationHandler$Call.invokeOnce(RetryInvocationHandler.java:95)
>> > at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:359)
>> > at com.sun.proxy.$Proxy19.getFileInfo(Unknown Source)
>> > at org.apache.hadoop.hdfs.DFSClient.getFileInfo(DFSClient.java:1731)
>> > at org.apache.hadoop.hdfs.DistributedFileSystem$29.doCall(DistributedFileSystem.java:1752)
>> > at org.apache.hadoop.hdfs.DistributedFileSystem$29.doCall(DistributedFileSystem.java:1749)
>> > at org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81)
>> > at org.apache.hadoop.hdfs.DistributedFileSystem.getFileStatus(DistributedFileSystem.java:1764)
>> > at org.apache.hadoop.fs.FileSystem.exists(FileSystem.java:1760)
>> > at org.apache.accumulo.server.fs.VolumeManagerImpl.exists(VolumeManagerImpl.java:254)
>> > at org.apache.accumulo.server.init.Initialize.isInitialized(Initialize.java:860)
>> > at org.apache.accumulo.server.init.Initialize.checkInit(Initialize.java:280)
>> > ... 4 more
>> > Caused by: java.net.ConnectException: Connection refused
>> > at java.base/sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
>> > at java.base/sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:777)
>> > at org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:206)
>> > at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:586)
>> > at org.apache.hadoop.ipc.Client$Connection.setupConnection(Client.java:701)
>> > at org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:822)
>> > at org.apache.hadoop.ipc.Client$Connection.access$3800(Client.java:414)
>> > at org.apache.hadoop.ipc.Client.getConnection(Client.java:1647)
>> > at org.apache.hadoop.ipc.Client.call(Client.java:1463)
>> > ... 28 more
>> > 2021-07-07 15:59:08,944 [start.Main] ERROR: Thread 'init' died.
>> > java.lang.RuntimeException: java.io.IOException: Failed to check if filesystem
>> > already initialized
>> > at org.apache.accumulo.server.init.Initialize.execute(Initialize.java:997)
>> > at org.apache.accumulo.start.Main.lambda$execKeyword$0(Main.java:129)
>> > at java.base/java.lang.Thread.run(Thread.java:829)
>> > Caused by: java.io.IOException: Failed to check if filesystem already
>> > initialized
>> > at org.apache.accumulo.server.init.Initialize.checkInit(Initialize.java:285)
>> > at org.apache.accumulo.server.init.Initialize.doInit(Initialize.java:323)
>> > at org.apache.accumulo.server.init.Initialize.execute(Initialize.java:991)
>> > ... 2 more
>> > Caused by: java.net.ConnectException: Call From centauri/192.168.178.30 to
>> > localhost:8020 failed on connection exception: java.net.ConnectException:
>> > Connection refused; For more details see:
>> > http://wiki.apache.org/hadoop/ConnectionRefused
>> > at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
>> > at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
>> > at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
>> > at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:490)
>> > at org.apache.hadoop.net.NetUtils.wrapWithMessage(NetUtils.java:913)
>> > at org.apache.hadoop.net.NetUtils.wrapException(NetUtils.java:828)
>> > at org.apache.hadoop.ipc.Client.getRpcResponse(Client.java:1577)
>> > at org.apache.hadoop.ipc.Client.call(Client.java:1519)
>> > at org.apache.hadoop.ipc.Client.call(Client.java:1416)
>> > at org.apache.hadoop.ipc.ProtobufRpcEngine2$Invoker.invoke(ProtobufRpcEngine2.java:242)
>> > at org.apache.hadoop.ipc.ProtobufRpcEngine2$Invoker.invoke(ProtobufRpcEngine2.java:129)
>> > at com.sun.proxy.$Proxy18.getFileInfo(Unknown Source)
>> > at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.getFileInfo(ClientNamenodeProtocolTranslatorPB.java:965)
>> > at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>> > at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
>> > at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>> > at java.base/java.lang.reflect.Method.invoke(Method.java:566)
>> > at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:422)
>> > at org.apache.hadoop.io.retry.RetryInvocationHandler$Call.invokeMethod(RetryInvocationHandler.java:165)
>> > at org.apache.hadoop.io.retry.RetryInvocationHandler$Call.invoke(RetryInvocationHandler.java:157)
>> > at org.apache.hadoop.io.retry.RetryInvocationHandler$Call.invokeOnce(RetryInvocationHandler.java:95)
>> > at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:359)
>> > at com.sun.proxy.$Proxy19.getFileInfo(Unknown Source)
>> > at org.apache.hadoop.hdfs.DFSClient.getFileInfo(DFSClient.java:1731)
>> > at org.apache.hadoop.hdfs.DistributedFileSystem$29.doCall(DistributedFileSystem.java:1752)
>> > at org.apache.hadoop.hdfs.DistributedFileSystem$29.doCall(DistributedFileSystem.java:1749)
>> > at org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81)
>> > at org.apache.hadoop.hdfs.DistributedFileSystem.getFileStatus(DistributedFileSystem.java:1764)
>> > at org.apache.hadoop.fs.FileSystem.exists(FileSystem.java:1760)
>> > at org.apache.accumulo.server.fs.VolumeManagerImpl.exists(VolumeManagerImpl.java:254)
>> > at org.apache.accumulo.server.init.Initialize.isInitialized(Initialize.java:860)
>> > at org.apache.accumulo.server.init.Initialize.checkInit(Initialize.java:280)
>> > ... 4 more
>> > Caused by: java.net.ConnectException: Connection refused
>> > at java.base/sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
>> > at java.base/sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:777)
>> > at org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:206)
>> > at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:586)
>> > at org.apache.hadoop.ipc.Client$Connection.setupConnection(Client.java:701)
>> > at org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:822)
>> > at org.apache.hadoop.ipc.Client$Connection.access$3800(Client.java:414)
>> > at org.apache.hadoop.ipc.Client.getConnection(Client.java:1647)
>> > at org.apache.hadoop.ipc.Client.call(Client.java:1463)
>> > ... 28 more
>> >
>> >
>> >
>> >
>> >
>> > I am not able to find the mistake. I found similar questions on Stackoverflow,
>> > but none of them solved my problem.
>> >
>> > Thanks in advance for any idea.
>> >
>> >
you try 2.0.1 again and are able to figure out how to get past the
issue you were having, feel free to let us know what you did
differently.
On Fri, Jul 9, 2021 at 10:56 AM Christine Buss <christine.buss...@gmx.de> wrote:
>
>
> yes of course!
> I deleted accumulo 2.0.1 and installed accumulo 1.10.1.
> Then edited the conf/ files. I think I didn't do that right before.
> And then it worked.
>
> Gesendet: Freitag, 09. Juli 2021 um 16:30 Uhr
> Von: "Christopher" <ctubb...@apache.org>
> An: "accumulo-user" <user@accumulo.apache.org>
> Betreff: Re: Re: Hadoop ConnectException
> Glad to hear you got it working! Can you share what your solution was in case it helps others?
>
> On Fri, Jul 9, 2021, 10:20 Christine Buss <christine.buss...@gmx.de> wrote:
>>
>>
>> It works!! Thanks a lot to veryone!
>> I worked through all your hints and suggestions.
>>
>> Gesendet: Donnerstag, 08. Juli 2021 um 18:18 Uhr
>> Von: "Ed Coleman" <edcole...@apache.org>
>> An: user@accumulo.apache.org
>> Betreff: Re: Hadoop ConnectException
>>
>> According to the Hadoop getting started guide (https://hadoop.apache.org/docs/stable/hadoop-project-dist/hadoop-common/SingleCluster.html) the resouce manager runs at: http://localhost:8088/
>>
>> Can you run hadoop commands like:
>> > hadoop fs -ls /accumulo (or whatever you've decided on as the destination for files)
>>
>> Did you check that accumulo-env.sh and other configuration files have been set-up for your environemnt?
>>
>>
>> On 2021/07/07 15:20:41, Christine Buss <christine.buss...@gmx.de> wrote:
>> > Hi,
>> >
>> >
>> >
>> > I am using:
>> >
>> > Java 11
>> >
>> > Ubuntu 20.04.2
>> >
>> > Hadoop 3.3.1
>> >
>> > Zookeeper 3.7.0
>> >
>> > Accumulo 2.0.1
>> >
>> >
>> >
>> >
>> >
>> > I followed the instructions here:
>> >
>> > https://hadoop.apache.org/docs/stable/hadoop-project-dist/hadoop-
>> > common/SingleCluster.html
>> >
>> > and edited `etc/hadoop/hadoop-env.sh`, etc/hadoop/core-site.xml,
>> > etc/hadoop/hdfs-site.xml accordingly.
>> >
>> > 'ssh localhost' works without a passphrase.
>> >
>> >
>> >
>> > Then I started Zookeper, start-dfs.sh and start-yarn.sh:
>> >
>> > christine@centauri:~$ ./zookeeper-3.4.9/bin/zkServer.sh start
>> > ZooKeeper JMX enabled by default
>> > Using config: /home/christine/zookeeper-3.4.9/bin/../conf/zoo.cfg
>> > Starting zookeeper ... STARTED
>> > christine@centauri:~$ ./hadoop-3.3.1/sbin/start-dfs.sh
>> > Starting namenodes on [localhost]
>> > Starting datanodes
>> > Starting secondary namenodes [centauri]
>> > centauri: Warning: Permanently added
>> > 'centauri,2003:d4:771c:3b00:7223:40a1:4c07:7c7b' (ECDSA) to the list of known
>> > hosts.
>> > christine@centauri:~$ ./hadoop-3.3.1/sbin/start-yarn.sh
>> > Starting resourcemanager
>> > Starting nodemanagers
>> > christine@centauri:~$ jps
>> > 3921 Jps
>> > 2387 QuorumPeerMain
>> > 3171 SecondaryNameNode
>> > 3732 NodeManager
>> > 2955 DataNode
>> > 3599 ResourceManager
>> >
>> >
>> >
>> > BUT
>> >
>> > when running 'accumulo init' I get this Error:
>> >
>> > hristine@centauri:~$ ./accumulo-2.0.1/bin/accumulo init
>> > OpenJDK 64-Bit Server VM warning: Option UseConcMarkSweepGC was deprecated in
>> > version 9.0 and will likely be removed in a future release.
>> > 2021-07-07 15:59:05,590 [conf.SiteConfiguration] INFO : Found Accumulo
>> > configuration on classpath at
>> > /home/christine/accumulo-2.0.1/conf/accumulo.properties
>> > 2021-07-07 15:59:08,460 [fs.VolumeManagerImpl] WARN : dfs.datanode.synconclose
>> > set to false in hdfs-site.xml: data loss is possible on hard system reset or
>> > power loss
>> > 2021-07-07 15:59:08,461 [init.Initialize] INFO : Hadoop Filesystem is
>> > hdfs://localhost:9000
>> > 2021-07-07 15:59:08,461 [init.Initialize] INFO : Accumulo data dirs are
>> > [hdfs://localhost:8020/accumulo]
>> > 2021-07-07 15:59:08,461 [init.Initialize] INFO : Zookeeper server is
>> > localhost:2181
>> > 2021-07-07 15:59:08,461 [init.Initialize] INFO : Checking if Zookeeper is
>> > available. If this hangs, then you need to make sure zookeeper is running
>> > 2021-07-07 15:59:08,938 [init.Initialize] ERROR: Fatal exception
>> > java.io.IOException: Failed to check if filesystem already initialized
>> > at org.apache.accumulo.server.init.Initialize.checkInit(Initialize.java:285)
>> > at org.apache.accumulo.server.init.Initialize.doInit(Initialize.java:323)
>> > at org.apache.accumulo.server.init.Initialize.execute(Initialize.java:991)
>> > at org.apache.accumulo.start.Main.lambda$execKeyword$0(Main.java:129)
>> > at java.base/java.lang.Thread.run(Thread.java:829)
>> > Caused by: java.net.ConnectException: Call From centauri/192.168.178.30 to
>> > localhost:8020 failed on connection exception: java.net.ConnectException:
>> > Connection refused; For more details see:
>> > http://wiki.apache.org/hadoop/ConnectionRefused
>> > at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
>> > at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
>> > at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
>> > at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:490)
>> > at org.apache.hadoop.net.NetUtils.wrapWithMessage(NetUtils.java:913)
>> > at org.apache.hadoop.net.NetUtils.wrapException(NetUtils.java:828)
>> > at org.apache.hadoop.ipc.Client.getRpcResponse(Client.java:1577)
>> > at org.apache.hadoop.ipc.Client.call(Client.java:1519)
>> > at org.apache.hadoop.ipc.Client.call(Client.java:1416)
>> > at org.apache.hadoop.ipc.ProtobufRpcEngine2$Invoker.invoke(ProtobufRpcEngine2.java:242)
>> > at org.apache.hadoop.ipc.ProtobufRpcEngine2$Invoker.invoke(ProtobufRpcEngine2.java:129)
>> > at com.sun.proxy.$Proxy18.getFileInfo(Unknown Source)
>> > at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.getFileInfo(ClientNamenodeProtocolTranslatorPB.java:965)
>> > at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>> > at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
>> > at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>> > at java.base/java.lang.reflect.Method.invoke(Method.java:566)
>> > at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:422)
>> > at org.apache.hadoop.io.retry.RetryInvocationHandler$Call.invokeMethod(RetryInvocationHandler.java:165)
>> > at org.apache.hadoop.io.retry.RetryInvocationHandler$Call.invoke(RetryInvocationHandler.java:157)
>> > at org.apache.hadoop.io.retry.RetryInvocationHandler$Call.invokeOnce(RetryInvocationHandler.java:95)
>> > at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:359)
>> > at com.sun.proxy.$Proxy19.getFileInfo(Unknown Source)
>> > at org.apache.hadoop.hdfs.DFSClient.getFileInfo(DFSClient.java:1731)
>> > at org.apache.hadoop.hdfs.DistributedFileSystem$29.doCall(DistributedFileSystem.java:1752)
>> > at org.apache.hadoop.hdfs.DistributedFileSystem$29.doCall(DistributedFileSystem.java:1749)
>> > at org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81)
>> > at org.apache.hadoop.hdfs.DistributedFileSystem.getFileStatus(DistributedFileSystem.java:1764)
>> > at org.apache.hadoop.fs.FileSystem.exists(FileSystem.java:1760)
>> > at org.apache.accumulo.server.fs.VolumeManagerImpl.exists(VolumeManagerImpl.java:254)
>> > at org.apache.accumulo.server.init.Initialize.isInitialized(Initialize.java:860)
>> > at org.apache.accumulo.server.init.Initialize.checkInit(Initialize.java:280)
>> > ... 4 more
>> > Caused by: java.net.ConnectException: Connection refused
>> > at java.base/sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
>> > at java.base/sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:777)
>> > at org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:206)
>> > at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:586)
>> > at org.apache.hadoop.ipc.Client$Connection.setupConnection(Client.java:701)
>> > at org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:822)
>> > at org.apache.hadoop.ipc.Client$Connection.access$3800(Client.java:414)
>> > at org.apache.hadoop.ipc.Client.getConnection(Client.java:1647)
>> > at org.apache.hadoop.ipc.Client.call(Client.java:1463)
>> > ... 28 more
>> > 2021-07-07 15:59:08,944 [start.Main] ERROR: Thread 'init' died.
>> > java.lang.RuntimeException: java.io.IOException: Failed to check if filesystem
>> > already initialized
>> > at org.apache.accumulo.server.init.Initialize.execute(Initialize.java:997)
>> > at org.apache.accumulo.start.Main.lambda$execKeyword$0(Main.java:129)
>> > at java.base/java.lang.Thread.run(Thread.java:829)
>> > Caused by: java.io.IOException: Failed to check if filesystem already
>> > initialized
>> > at org.apache.accumulo.server.init.Initialize.checkInit(Initialize.java:285)
>> > at org.apache.accumulo.server.init.Initialize.doInit(Initialize.java:323)
>> > at org.apache.accumulo.server.init.Initialize.execute(Initialize.java:991)
>> > ... 2 more
>> > Caused by: java.net.ConnectException: Call From centauri/192.168.178.30 to
>> > localhost:8020 failed on connection exception: java.net.ConnectException:
>> > Connection refused; For more details see:
>> > http://wiki.apache.org/hadoop/ConnectionRefused
>> > at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
>> > at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
>> > at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
>> > at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:490)
>> > at org.apache.hadoop.net.NetUtils.wrapWithMessage(NetUtils.java:913)
>> > at org.apache.hadoop.net.NetUtils.wrapException(NetUtils.java:828)
>> > at org.apache.hadoop.ipc.Client.getRpcResponse(Client.java:1577)
>> > at org.apache.hadoop.ipc.Client.call(Client.java:1519)
>> > at org.apache.hadoop.ipc.Client.call(Client.java:1416)
>> > at org.apache.hadoop.ipc.ProtobufRpcEngine2$Invoker.invoke(ProtobufRpcEngine2.java:242)
>> > at org.apache.hadoop.ipc.ProtobufRpcEngine2$Invoker.invoke(ProtobufRpcEngine2.java:129)
>> > at com.sun.proxy.$Proxy18.getFileInfo(Unknown Source)
>> > at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.getFileInfo(ClientNamenodeProtocolTranslatorPB.java:965)
>> > at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>> > at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
>> > at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>> > at java.base/java.lang.reflect.Method.invoke(Method.java:566)
>> > at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:422)
>> > at org.apache.hadoop.io.retry.RetryInvocationHandler$Call.invokeMethod(RetryInvocationHandler.java:165)
>> > at org.apache.hadoop.io.retry.RetryInvocationHandler$Call.invoke(RetryInvocationHandler.java:157)
>> > at org.apache.hadoop.io.retry.RetryInvocationHandler$Call.invokeOnce(RetryInvocationHandler.java:95)
>> > at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:359)
>> > at com.sun.proxy.$Proxy19.getFileInfo(Unknown Source)
>> > at org.apache.hadoop.hdfs.DFSClient.getFileInfo(DFSClient.java:1731)
>> > at org.apache.hadoop.hdfs.DistributedFileSystem$29.doCall(DistributedFileSystem.java:1752)
>> > at org.apache.hadoop.hdfs.DistributedFileSystem$29.doCall(DistributedFileSystem.java:1749)
>> > at org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81)
>> > at org.apache.hadoop.hdfs.DistributedFileSystem.getFileStatus(DistributedFileSystem.java:1764)
>> > at org.apache.hadoop.fs.FileSystem.exists(FileSystem.java:1760)
>> > at org.apache.accumulo.server.fs.VolumeManagerImpl.exists(VolumeManagerImpl.java:254)
>> > at org.apache.accumulo.server.init.Initialize.isInitialized(Initialize.java:860)
>> > at org.apache.accumulo.server.init.Initialize.checkInit(Initialize.java:280)
>> > ... 4 more
>> > Caused by: java.net.ConnectException: Connection refused
>> > at java.base/sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
>> > at java.base/sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:777)
>> > at org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:206)
>> > at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:586)
>> > at org.apache.hadoop.ipc.Client$Connection.setupConnection(Client.java:701)
>> > at org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:822)
>> > at org.apache.hadoop.ipc.Client$Connection.access$3800(Client.java:414)
>> > at org.apache.hadoop.ipc.Client.getConnection(Client.java:1647)
>> > at org.apache.hadoop.ipc.Client.call(Client.java:1463)
>> > ... 28 more
>> >
>> >
>> >
>> >
>> >
>> > I am not able to find the mistake. I found similar questions on Stackoverflow,
>> > but none of them solved my problem.
>> >
>> > Thanks in advance for any idea.
>> >
>> >
