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https://issues.apache.org/jira/browse/HADOOP-14148?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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John Zhuge updated HADOOP-14148:
--------------------------------
    Summary: hdfs command hanging in futex  (was: hdfs command handing in futex)

> hdfs command hanging in futex
> -----------------------------
>
>                 Key: HADOOP-14148
>                 URL: https://issues.apache.org/jira/browse/HADOOP-14148
>             Project: Hadoop Common
>          Issue Type: Bug
>    Affects Versions: 2.7.3
>         Environment: Linux 3.10.104 x86_64
> java version "1.7.0_80"
>            Reporter: rowe
>
> any hdfs comand  on specify namenode return slowly. For example 
> # strace hdfs haadmin -getServiceState nn1 shows haning in 
> futex(0x7f155b7ce9d0, FUTEX_WAIT, 23073, NULL



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