这实际上是一个备用HA名称节点。 它配置了与主服务器相同的设置,并且已成功运行hdfs namenode -bootstrapStandby
。 它开始出现在配置文件中定义的标准 HTTP 端口 50070 上:
<property>
<name>dfs.namenode.http-address.ha-hadoop.namenode2</name>
<value>namenode2:50070</value>
</property>
启动开始正常,然后点击:
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:
<property>
<name>dfs.namenode.http-address.local1-hadoop.hadoop1</name>
<value>hadoop1:10070</value>
</property>
但是,我只在新端口上得到与上述相同的结果:
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。
这个问题似乎与我的问题相似,但答案没有帮助。 我尝试将dfs.http.address
设置为其他内容,但它没有改变任何东西。 我相信这是一个非 HA 配置选项,在 HA 中替换为dfs.namenode.http-address.ha-name.namenodename
从这里可以看出,实际上没有任何内容在监听 http 端口:
# 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,以查看侦听端口是否是某种perms问题,但这会产生相同的错误。
发现问题。 这来自该服务器的简短历史记录,其中 IP 地址发生了变化,但/etc/hosts 文件只是附加了新文件而不是替换了它。 我认为这混淆了Hadoop的启动,因为它试图在不存在的接口上打开50070。 "端口使用中"的错误使这有点令人困惑。
下载 osquery https://code.facebook.com/projects/658950180885092
并安装
发出此命令 osqueryi
出现提示时,使用此 SQL 命令查看所有正在运行的 Java 进程并查找 PID
选择名称、路径、pid FROM 进程,其中 name="java";
你会在Mac上得到看起来像这样的东西
+------+--------------------------------------------------------------------------+-------+
| name | path | pid |
+------+--------------------------------------------------------------------------+-------+
| java | /Library/Java/JavaVirtualMachines/jdk1.8.0_45.jdk/Contents/Home/bin/java | 59446 |
| java | /Library/Java/JavaVirtualMachines/jdk1.8.0_45.jdk/Contents/Home/bin/java | 59584 |
| java | /Library/Java/JavaVirtualMachines/jdk1.8.0_45.jdk/Contents/Home/bin/java | 59676 |
| java | /Library/Java/JavaVirtualMachines/jdk1.8.0_45.jdk/Contents/Home/bin/java | 59790 |
+------+--------------------------------------------------------------------------+-------+
在所有进程上发出 sudo kill - PID 命令,以确保它终止正在使用的端口 0.0.0.0:50070
然后在所有这些重试之后,sbin/start-dfs.sh 和 namenode 现在应该显示
使用以下命令检查正在运行和使用 java 的进程:
PS AUX | grep Java
之后,使用上述命令中的PID杀死与hadoop相关的所有进程,如下所示:
须藤杀-9 PID