高可用性—hadoop 2.6多节点群集

ars1skjm  于 2021-06-03  发布在  Hadoop
关注(0)|答案(2)|浏览(369)

我有2个namenodes和4个datanodes.namenodes充当datanode，另外还有2个专用datanodes
lsof-Ⅰ：2181-秒
它在namenode1上显示namenode1/x.x.x.x->namenode1，在namenode2上显示namenode2/x.x.x.x->namenode2。当我通过终止activ namenode的pid来检查自动故障转移时，两个web ui都会停止并显示错误日志 hadoop dfwsadmin -report 在namenode2==>>

java.net.ConnectException: Call From namenode2/10.7.1.65 to namenode2:8020 failed on connection exception: java.net.ConnectException: Connection refused; For more details see:  http://wiki.apache.org/hadoop/ConnectionRefused
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
    at org.apache.hadoop.net.NetUtils.wrapWithMessage(NetUtils.java:791)
    at org.apache.hadoop.net.NetUtils.wrapException(NetUtils.java:731)
    at org.apache.hadoop.ipc.Client.call(Client.java:1472)
    at org.apache.hadoop.ipc.Client.call(Client.java:1399)
    at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:232)
    at com.sun.proxy.$Proxy9.getFsStats(Unknown Source)
    at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.getStats(ClientNamenodeProtocolTranslatorPB.java:593)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:187)
    at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:102)
    at com.sun.proxy.$Proxy10.getStats(Unknown Source)
    at org.apache.hadoop.hdfs.DFSClient.getDiskStatus(DFSClient.java:2360)
    at org.apache.hadoop.hdfs.DistributedFileSystem.getStatus(DistributedFileSystem.java:937)
    at org.apache.hadoop.fs.FileSystem.getStatus(FileSystem.java:2254)
    at org.apache.hadoop.hdfs.tools.DFSAdmin.report(DFSAdmin.java:431)
    at org.apache.hadoop.hdfs.tools.DFSAdmin.run(DFSAdmin.java:1763)
    at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)
    at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:84)
    at org.apache.hadoop.hdfs.tools.DFSAdmin.main(DFSAdmin.java:1941)
Caused by: java.net.ConnectException: Connection refused
    at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
    at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:740)
    at org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:206)
    at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:530)
    at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:494)
    at org.apache.hadoop.ipc.Client$Connection.setupConnection(Client.java:607)
    at org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:705)
    at org.apache.hadoop.ipc.Client$Connection.access$2800(Client.java:368)
    at org.apache.hadoop.ipc.Client.getConnection(Client.java:1521)
    at org.apache.hadoop.ipc.Client.call(Client.java:1438)
    ... 19 more
15/09/01 10:57:03 WARN retry.RetryInvocationHandler: Exception while invoking class org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.getStats over namenode1/10.7.1.73:8020. Not retrying because failovers (15) exceeded maximum allowed (15)
java.net.ConnectException: Call From namenode2/10.7.1.65 to namenode1:8020 failed on connection exception: java.net.ConnectException: Connection refused; For more details see:  http://wiki.apache.org/hadoop/ConnectionRefused
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
    at org.apache.hadoop.net.NetUtils.wrapWithMessage(NetUtils.java:791)
    at org.apache.hadoop.net.NetUtils.wrapException(NetUtils.java:731)
    at org.apache.hadoop.ipc.Client.call(Client.java:1472)
    at org.apache.hadoop.ipc.Client.call(Client.java:1399)
    at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:232)
    at com.sun.proxy.$Proxy9.getFsStats(Unknown Source)
    at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.getStats(ClientNamenodeProtocolTranslatorPB.java:593)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:187)
    at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:102)
    at com.sun.proxy.$Proxy10.getStats(Unknown Source)
    at org.apache.hadoop.hdfs.DFSClient.getDiskStatus(DFSClient.java:2360)
    at org.apache.hadoop.hdfs.DistributedFileSystem.getStatus(DistributedFileSystem.java:937)
    at org.apache.hadoop.fs.FileSystem.getStatus(FileSystem.java:2254)
    at org.apache.hadoop.hdfs.tools.DFSAdmin.report(DFSAdmin.java:431)
    at org.apache.hadoop.hdfs.tools.DFSAdmin.run(DFSAdmin.java:1763)
    at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)
    at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:84)
    at org.apache.hadoop.hdfs.tools.DFSAdmin.main(DFSAdmin.java:1941)
Caused by: java.net.ConnectException: Connection refused
    at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
    at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:740)
    at org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:206)
    at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:530)
    at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:494)
    at org.apache.hadoop.ipc.Client$Connection.setupConnection(Client.java:607)
    at org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:705)
    at org.apache.hadoop.ipc.Client$Connection.access$2800(Client.java:368)
    at org.apache.hadoop.ipc.Client.getConnection(Client.java:1521)
    at org.apache.hadoop.ipc.Client.call(Client.java:1438)
    ... 19 more
report: Call From namenode2/10.7.1.65 to namenode1:8020 failed on connection exception: java.net.ConnectException: Connection refused; For more details see:  http://wiki.apache.org/hadoop/ConnectionRefused

**on namenode1**== >> 

java.net.ConnectException: Call From namenode1/10.7.1.73 to namenode2:8020 failed on connection exception: java.net.ConnectException: Connection refused; For more details see:  http://wiki.apache.org/hadoop/ConnectionRefused
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
    at org.apache.hadoop.net.NetUtils.wrapWithMessage(NetUtils.java:791)
    at org.apache.hadoop.net.NetUtils.wrapException(NetUtils.java:731)
    at org.apache.hadoop.ipc.Client.call(Client.java:1472)
    at org.apache.hadoop.ipc.Client.call(Client.java:1399)
    at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:232)
    at com.sun.proxy.$Proxy9.getFsStats(Unknown Source)
    at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.getStats(ClientNamenodeProtocolTranslatorPB.java:593)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:187)
    at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:102)
    at com.sun.proxy.$Proxy10.getStats(Unknown Source)
    at org.apache.hadoop.hdfs.DFSClient.getDiskStatus(DFSClient.java:2360)
    at org.apache.hadoop.hdfs.DistributedFileSystem.getStatus(DistributedFileSystem.java:937)
    at org.apache.hadoop.fs.FileSystem.getStatus(FileSystem.java:2254)
    at org.apache.hadoop.hdfs.tools.DFSAdmin.report(DFSAdmin.java:431)
    at org.apache.hadoop.hdfs.tools.DFSAdmin.run(DFSAdmin.java:1763)
    at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)
    at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:84)
    at org.apache.hadoop.hdfs.tools.DFSAdmin.main(DFSAdmin.java:1941)
Caused by: java.net.ConnectException: Connection refused
    at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
    at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:740)
    at org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:206)
    at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:530)
    at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:494)
    at org.apache.hadoop.ipc.Client$Connection.setupConnection(Client.java:607)
    at org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:705)
    at org.apache.hadoop.ipc.Client$Connection.access$2800(Client.java:368)
    at org.apache.hadoop.ipc.Client.getConnection(Client.java:1521)
    at org.apache.hadoop.ipc.Client.call(Client.java:1438)
    ... 19 more
15/09/01 11:32:51 INFO retry.RetryInvocationHandler: Exception while invoking getStats of class ClientNamenodeProtocolTranslatorPB over namenode1/10.7.1.73:8020 after 3 fail over attempts. Trying to fail over after sleeping for 3172ms.
java.net.ConnectException: Call From namenode1/10.7.1.73 to namenode1:8020 failed on connection exception: java.net.ConnectException: Connection refused; For more details see:  http://wiki.apache.org/hadoop/ConnectionRefused
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
    at org.apache.hadoop.net.NetUtils.wrapWithMessage(NetUtils.java:791)
    at org.apache.hadoop.net.NetUtils.wrapException(NetUtils.java:731)
    at org.apache.hadoop.ipc.Client.call(Client.java:1472)
    at org.apache.hadoop.ipc.Client.call(Client.java:1399)
    at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:232)
    at com.sun.proxy.$Proxy9.getFsStats(Unknown Source)
    at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.getStats(ClientNamenodeProtocolTranslatorPB.java:593)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:187)
    at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:102)
    at com.sun.proxy.$Proxy10.getStats(Unknown Source)
    at org.apache.hadoop.hdfs.DFSClient.getDiskStatus(DFSClient.java:2360)
    at org.apache.hadoop.hdfs.DistributedFileSystem.getStatus(DistributedFileSystem.java:937)
    at org.apache.hadoop.fs.FileSystem.getStatus(FileSystem.java:2254)
    at org.apache.hadoop.hdfs.tools.DFSAdmin.report(DFSAdmin.java:431)
    at org.apache.hadoop.hdfs.tools.DFSAdmin.run(DFSAdmin.java:1763)
    at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)
    at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:84)
    at org.apache.hadoop.hdfs.tools.DFSAdmin.main(DFSAdmin.java:1941)
Caused by: java.net.ConnectException: Connection refused
    at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
    at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:740)
    at org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:206)
    at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:530)
    at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:494)
    at org.apache.hadoop.ipc.Client$Connection.setupConnection(Client.java:607)
    at org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:705)
    at org.apache.hadoop.ipc.Client$Connection.access$2800(Client.java:368)
    at org.apache.hadoop.ipc.Client.getConnection(Client.java:1521)
    at org.apache.hadoop.ipc.Client.call(Client.java:1438)
    ... 19 more
15/09/01 11:32:55 INFO retry.RetryInvocationHandler: Exception while invoking getStats of class ClientNamenodeProtocolTranslatorPB over namenode2/10.7.1.65:8020 after 4 fail over attempts. Trying to fail over after sleeping for 5263ms

jps for namenodes before failover ===>>>

namenode1 :::

14187 NodeManager

13959 DFSZKFailoverController

12974 JournalNode

14051 ResourceManager

15270 Jps

12543 NameNode

13480 DataNode

namenode2 :::

9569 DFSZKFailoverController

9699 NodeManager

10731 Jps

8958 JournalNode

8946 NameNode

9278 DataNode

please help me
hadoophigh-availability

2条答案

按热度按时间
umuewwlo

umuewwlo1#

我想你可以检查一下你的配置文件。

core-site.xml文件

fs.defaultfs文件
http://asdfg （逻辑url）
哈。Zookeeper。法定人数
h1.c1:2181，h1.c2:2181，h1.c3:2181（法定人数列表）

hdfs-site.xml文件

dfs.nameservices服务
asdfg公司
dfs.ha.namenodes.asdfg文件
nn1，nn2。。。。
查看此链接

赞(0）分享  回复(0）举报  2021-06-04
zmeyuzjn

zmeyuzjn2#

重新启动两个名称节点并检查一次。如果问题仍然存在，请检查名称节点目录是否可访问，以及名称节点的日志（活动和备用-因为它将提供要解决的精确信息）。如果什么都不起作用，请格式化那些名称节点。hadoop namenode-格式
应该有用。

赞(0）分享  回复(0）举报  2021-06-03
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