hadoop namenode端口正在使用中 [英] hadoop namenode port in use
问题描述
这实际上是一个备用HA名称节点。它的配置与主服务器相同，并且 hdfs namenode -bootstrapStandby 已成功运行。它开始在配置文件中定义的标准HTTP端口50070上：
This is actually a standby HA namenode. It was configured with the same settings as the primary and hdfs namenode -bootstrapStandby was successfully run. It begins coming up on the standard HTTP port 50070 as defined in the config file:
<property>
<name>dfs.namenode.http-address.ha-hadoop.namenode2</name>
<value>namenode2:50070</value>
</property>
启动开始OK然后点击：
The start up begins OK then hits:
15/02/02 08:06:17 INFO hdfs.DFSUtil: Starting Web-server for hdfs at: http://hadoop1:50070
15/02/02 08:06:17 INFO mortbay.log: Logging to org.slf4j.impl.Log4jLoggerAdapter(org.mortbay.log) via org.mortbay.log.Slf4jLog
15/02/02 08:06:17 INFO http.HttpRequestLog: Http request log for http.requests.namenode is not defined
15/02/02 08:06:17 INFO http.HttpServer2: Added global filter 'safety' (class=org.apache.hadoop.http.HttpServer2$QuotingInputFilter)
15/02/02 08:06:17 INFO http.HttpServer2: Added filter static_user_filter (class=org.apache.hadoop.http.lib.StaticUserWebFilter$StaticUserFilter) to context hdfs
15/02/02 08:06:17 INFO http.HttpServer2: Added filter static_user_filter (class=org.apache.hadoop.http.lib.StaticUserWebFilter$StaticUserFilter) to context logs
15/02/02 08:06:17 INFO http.HttpServer2: Added filter static_user_filter (class=org.apache.hadoop.http.lib.StaticUserWebFilter$StaticUserFilter) to context static
15/02/02 08:06:17 INFO http.HttpServer2: Added filter 'org.apache.hadoop.hdfs.web.AuthFilter' (class=org.apache.hadoop.hdfs.web.AuthFilter)
15/02/02 08:06:17 INFO http.HttpServer2: addJerseyResourcePackage: packageName=org.apache.hadoop.hdfs.server.namenode.web.resources;org.apache.hadoop.hdfs.web.resources, pathSpec=/webhdfs/v1/*
15/02/02 08:06:17 INFO http.HttpServer2: HttpServer.start() threw a non Bind IOException
java.net.BindException: Port in use: hadoop1:50070
at org.apache.hadoop.http.HttpServer2.openListeners(HttpServer2.java:890)
at org.apache.hadoop.http.HttpServer2.start(HttpServer2.java:826)
at org.apache.hadoop.hdfs.server.namenode.NameNodeHttpServer.start(NameNodeHttpServer.java:142)
at org.apache.hadoop.hdfs.server.namenode.NameNode.startHttpServer(NameNode.java:695)
at org.apache.hadoop.hdfs.server.namenode.NameNode.initialize(NameNode.java:585)
at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:754)
at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:738)
at org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1427)
at org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1493)
Caused by: java.net.BindException: Cannot assign requested address
at sun.nio.ch.Net.bind0(Native Method)
at sun.nio.ch.Net.bind(Net.java:444)
at sun.nio.ch.Net.bind(Net.java:436)
at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:214)
at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:74)
at org.mortbay.jetty.nio.SelectChannelConnector.open(SelectChannelConnector.java:216)
at org.apache.hadoop.http.HttpServer2.openListeners(HttpServer2.java:885)
... 8 more
15/02/02 08:06:17 INFO impl.MetricsSystemImpl: Stopping NameNode metrics system...
15/02/02 08:06:17 INFO impl.MetricsSystemImpl: NameNode metrics system stopped.
15/02/02 08:06:17 INFO impl.MetricsSystemImpl: NameNode metrics system shutdown complete.
15/02/02 08:06:17 FATAL namenode.NameNode: Failed to start namenode.
java.net.BindException: Port in use: hadoop1:50070
at org.apache.hadoop.http.HttpServer2.openListeners(HttpServer2.java:890)
at org.apache.hadoop.http.HttpServer2.start(HttpServer2.java:826)
at org.apache.hadoop.hdfs.server.namenode.NameNodeHttpServer.start(NameNodeHttpServer.java:142)
at org.apache.hadoop.hdfs.server.namenode.NameNode.startHttpServer(NameNode.java:695)
at org.apache.hadoop.hdfs.server.namenode.NameNode.initialize(NameNode.java:585)
at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:754)
at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:738)
at org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1427)
at org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1493)
Caused by: java.net.BindException: Cannot assign requested address
at sun.nio.ch.Net.bind0(Native Method)
at sun.nio.ch.Net.bind(Net.java:444)
at sun.nio.ch.Net.bind(Net.java:436)
at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:214)
at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:74)
at org.mortbay.jetty.nio.SelectChannelConnector.open(SelectChannelConnector.java:216)
at org.apache.hadoop.http.HttpServer2.openListeners(HttpServer2.java:885)
... 8 more
15/02/02 08:06:17 INFO util.ExitUtil: Exiting with status 1
15/02/02 08:06:17 INFO namenode.NameNode: SHUTDOWN_MSG:
/************************************************************
SHUTDOWN_MSG: Shutting down NameNode at hadoop1.marketstudies.com/192.168.1.125
************************************************************/
我尝试通过设置来更改http地址端口：
I have tried changing the http-address port by setting:
<property>
<name>dfs.namenode.http-address.local1-hadoop.hadoop1</name>
<value>hadoop1:10070</value>
</property>
但是，只有新端口才能得到与上面相同的结果：
But then I get the same as above only with the new port:
15/02/02 08:16:51 INFO hdfs.DFSUtil: Starting Web-server for hdfs at: http://hadoop1:10070
...
java.net.BindException: Port in use: hadoop1:10070
...
java.net.BindException: Port in use: hadoop1:10070
这是在主名称节点上使用相同的配置。
This is working with the same config on the primary namenode.
此问题似乎与我的问题类似，但答案没有帮助。我试着将 dfs.http.address 设置为其他东西，但它没有改变任何东西。我相信这是HA中用 dfs.namenode.http-address.ha-name.namenodename
This Question seems to be similar to my issue but the Answer didn't help. I tried setting dfs.http.address to other things and it didn't change anything. I belive this is a non-HA config option replaced in HA with dfs.namenode.http-address.ha-name.namenodename
从这里可以看出，实际上没有任何HTTP端口正在监听：
There is nothing actually listening to the http port as can be seen from here:
# netstat -anp |grep LIST
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 946/sshd
tcp 0 0 0.0.0.0:46712 0.0.0.0:* LISTEN 2066/java
tcp 0 0 0.0.0.0:50010 0.0.0.0:* LISTEN 28892/java
tcp 0 0 0.0.0.0:50075 0.0.0.0:* LISTEN 28892/java
tcp 0 0 0.0.0.0:8480 0.0.0.0:* LISTEN 1471/java
tcp 0 0 0.0.0.0:10050 0.0.0.0:* LISTEN 2358/zabbix_agentd
tcp 0 0 0.0.0.0:50020 0.0.0.0:* LISTEN 28892/java
tcp 0 0 0.0.0.0:8485 0.0.0.0:* LISTEN 1471/java
tcp 0 0 0.0.0.0:8040 0.0.0.0:* LISTEN 2066/java
tcp 0 0 0.0.0.0:8042 0.0.0.0:* LISTEN 2066/java
tcp 0 0 127.0.0.1:3306 0.0.0.0:* LISTEN 1020/mysqld
tcp6 0 0 :::22 :::* LISTEN 946/sshd
尝试以root用户身份启动，看看是否有某种类型的perms问题用于侦听端口，但会产生相同的错误。 b $ b
Tried starting as root user to see if it's some kind of perms problem for listening to the port but that gives the same error.
推荐答案
发现问题。这来自IP地址发生更改的服务器的简短历史记录，但/ etc / hosts文件只是附加了新文件而不是替换它。我认为这让Hadoop启动困惑，因为它试图在一个不存在的界面上打开50070。错误是使用中的端口使得这有点令人困惑。
Found the issue. This came from a short history of this server where the IP address changed, but the /etc/hosts file just had the new one appended to it rather than replaced. I think this was confusing the Hadoop start up as it was trying to open 50070 on a non-existent interface. The error being "port in use" made this a little confusing.
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