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  • hadoop无法停止

    停止hadoop集群,运行命令

    $ sh stop-all.sh

    出现提示:

    no resourcemanager to stop
    host10: no nodemanager to stop
    host9: no nodemanager to stop
    no proxyserver to stop

    添加日志重新操作:

    export HADOOP_ROOT_LOGGER=DEBUG,console
    18/11/13 11:07:16 DEBUG util.PerformanceAdvisory: Falling back to shell based
    18/11/13 11:07:16 DEBUG security.JniBasedUnixGroupsMappingWithFallback: Group mapping impl=org.apache.hadoop.security.ShellBasedUnixGroupsMapping
    18/11/13 11:07:16 DEBUG security.Groups: Group mapping impl=org.apache.hadoop.security.JniBasedUnixGroupsMappingWithFallback; cacheTimeout=300000; warningDeltaMs=5000
    18/11/13 11:07:16 DEBUG security.UserGroupInformation: hadoop login
    18/11/13 11:07:16 DEBUG security.UserGroupInformation: hadoop login commit
    18/11/13 11:07:16 DEBUG security.UserGroupInformation: using local user:UnixPrincipal: udap
    18/11/13 11:07:16 DEBUG security.UserGroupInformation: Using user: "UnixPrincipal: udap" with name udap
    18/11/13 11:07:16 DEBUG security.UserGroupInformation: User entry: "udap"
    18/11/13 11:07:16 DEBUG security.UserGroupInformation: UGI loginUser:udap (auth:SIMPLE)
    18/11/13 11:07:16 DEBUG security.UserGroupInformation: PrivilegedAction as:udap (auth:SIMPLE) from:org.apache.hadoop.hdfs.tools.GetConf.run(GetConf.java:314)
    stopping yarn daemons
    no resourcemanager to stop
    host10: no nodemanager to stop
    host9: no nodemanager to stop
    no proxyserver to stop

    没什么报错信息,这不科学,所以观察脚本,发现错误在寻找pid的时候没找到,默认pid存在:

    if [ "$HADOOP_PID_DIR" = "" ]; then
      HADOOP_PID_DIR=/tmp
    fi

    当tmp目录被删除时,此时就无法运行脚本停止进程,所以只能手动一台台停止进程了,如果要避免错误应该是启动脚本中将“HADOOP_PID_DIR”配置到不删除目录

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  • 原文地址:https://www.cnblogs.com/garfieldcgf/p/9952666.html
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