CDH环境中NodeManager无法启动，ResourceManager无法启动_hadoop yarn端口 address already in use: bind

CDH环境中NodeManager无法启动，ResourceManager无法启动

1.NodeManager无法启动可能产生的原因

1.1 可能是在该nodemanager停止的时候，向集群中新添加了其他的nodemanager，导致nodemanager启动的时候校验不通过

可能抛出的错误信息
org.fusesource.leveldbjni.internal.NativeDB$DBException: Corruption: 2 missing files; e.g.: /var/lib/hadoop-yarn/yarn-nm-recovery/yarn-nm-state/xxxxx.sst

2022-05-05 11:24:11,415 INFO org.apache.hadoop.service.AbstractService: Service NodeManager failed in state INITED; cause: org.apache.hadoop.service.ServiceStateException: org.fusesource.leveldbjni.internal.NativeDB$DBException: Corruption: 2 missing files; e.g.: /var/lib/hadoop-yarn/yarn-nm-recovery/yarn-nm-state/000003.sst
org.apache.hadoop.service.ServiceStateException: org.fusesource.leveldbjni.internal.NativeDB$DBException: Corruption: 2 missing files; e.g.: /var/lib/hadoop-yarn/yarn-nm-recovery/yarn-nm-state/000003.sst
	at org.apache.hadoop.service.ServiceStateException.convert(ServiceStateException.java:105)
	at org.apache.hadoop.service.AbstractService.init(AbstractService.java:173)
	at org.apache.hadoop.yarn.server.nodemanager.NodeManager.initAndStartRecoveryStore(NodeManager.java:281)
	at org.apache.hadoop.yarn.server.nodemanager.NodeManager.serviceInit(NodeManager.java:354)
	at org.apache.hadoop.service.AbstractService.init(AbstractService.java:164)
	at org.apache.hadoop.yarn.server.nodemanager.NodeManager.initAndStartNodeManager(NodeManager.java:869)
	at org.apache.hadoop.yarn.server.nodemanager.NodeManager.main(NodeManager.java:942)
Caused by: org.fusesource.leveldbjni.internal.NativeDB$DBException: Corruption: 2 missing files; e.g.: /var/lib/hadoop-yarn/yarn-nm-recovery/yarn-nm-state/000003.sst
	at org.fusesource.leveldbjni.internal.NativeDB.checkStatus(NativeDB.java:200)
	at org.fusesource.leveldbjni.internal.NativeDB.open(NativeDB.java:218)
	at org.fusesource.leveldbjni.JniDBFactory.open(JniDBFactory.java:168)
	at org.apache.hadoop.yarn.server.nodemanager.recovery.NMLeveldbStateStoreService.openDatabase(NMLeveldbStateStoreService.java:1517)
	at org.apache.hadoop.yarn.server.nodemanager.recovery.NMLeveldbStateStoreService.initStorage(NMLeveldbStateStoreService.java:1504)
	at org.apache.hadoop.yarn.server.nodemanager.recovery.NMStateStoreService.serviceInit(NMStateStoreService.java:342)
	at org.apache.hadoop.service.AbstractService.init(AbstractService.java:164)
	... 5 more

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19

解决方案：删除该nodemanager所在机器的 /var/lib/hadoop-yarn/yarn-nm-recovery/yarn-nm-state 文件夹下的全部信息

rm -rf /var/lib/hadoop-yarn/yarn-nm-recovery/yarn-nm-state/*
1

启动之前查看一下8041端口是否被占用,没有信息就是没占用，占用的话如果是nodemanager进程就kill掉，如果是其他进程建议就看一下是谁占用的，看能不能关掉或者是为nodemanager换一个端口。搜索配置yarn.nodemanager.address更改默认端口

lsof -i:8041
1

1.2 可能是启动端口被占用了

可能抛出的错误信息：
java.net.BindException: Address already in use;

INFO org.apache.hadoop.service.AbstractService: Service org.apache.hadoop.yarn.server.nodemanager.containermanager.ContainerManagerImpl failed in state STARTED; cause: org.apache.hadoop.yarn.exceptions.YarnRuntimeException: java.net.BindException: Problem binding to [master01:8041] java.net.BindException: Address already in use; For more details see:  http://wiki.apache.org/hadoop/BindException
1

解决方案：参考本文1.1，查看yarn.nodemanager.address的端口是否被占用
然后在CDH界面重启相应的NodeManager

2.ResourceManager无法启动

这里我遇到的错误如下，都是端口被占用的错误，解决方案可参考前文

org.apache.hadoop.yarn.exceptions.YarnRuntimeException: java.net.BindException: Problem binding to [master01:8031] java.net.BindException: Address already in use; For more details see:  http://wiki.apache.org/hadoop/BindException
1

3. 如何查看CDH的日志

3.1 在页面上查看相关服务的日志，这个有时因为服务自身的原因可能查看不了。

3.2 在服务器查看日志文件

登录到需要查看的服务所在的机器上

# CDH安装的服务的日志文件大都在这里
[root@slave01 ~]# cd /var/log/
[root@slave01 log]# ll
total 3160
......
drwxrwxr-x  3 hdfs         hadoop             4096 May  5 14:29 hadoop-hdfs
drwxrwxr-x  3 yarn         hadoop             4096 May  5 14:31 hadoop-yarn
......
# 前文的Nodemanager属于yarn范畴，所以这里可以进入hadoop-yarn
[root@slave01 log]# cd hadoop-yarn/
[root@slave01 hadoop-yarn]# ll
total 2868
-rw-r--r-- 1 yarn yarn   2925441 May  5 14:31 hadoop-cmf-yarn-NODEMANAGER-slave01.log.out
-rw-r--r-- 1 yarn yarn         0 May  4 12:59 SecurityAuth-yarn.audit
drwxr-xr-x 2 yarn hadoop    4096 May  4 14:11 stacks
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15

在 /var/log/hadoop-yarn中可以看到名为*NODEMANAGER*的日志文件，查看该日志文件即可看到具体是因为什么原因抛出错误，然后对症下药。如果是查看其他服务日志，都可以通过对应服务的日志文件的名称找到。