[jira] [Resolved] (HDFS-14488) libhdfs SIGSEGV during shutdown of Java

["Kotomi (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HDFS-14488?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Kotomi resolved HDFS-14488.
---------------------------
    Resolution: Cannot Reproduce

> libhdfs SIGSEGV during shutdown of Java
> ---------------------------------------
>
>                 Key: HDFS-14488
>                 URL: https://issues.apache.org/jira/browse/HDFS-14488
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: native
>    Affects Versions: 2.7.3, 3.2.0
>         Environment: Centos 7
> gcc (GCC) 8.3.0
>            Reporter: Kotomi
>            Priority: Critical
>
> For short, it‘s quite similar to https://issues.apache.org/jira/browse/HDFS-13585，but backtrace is different.
> We are using libhdfs for hdfs support in our native library, as a plugin, _dlopen_ when hdfs path detected and _dlclose_ when application closes.
> Crash happens randomly, during shutdown of Java. GDB shows in function hdfsThreadDestructor, JNIEnv v is not NULL but looks like a wild pointer. Therefore, it crashes when trying to get JavaVm from its own JNIEnv.
> {code:java}
> 43: ret = (*env)->GetJavaVM(env, &vm);
> {code}
> Any workarounds? Thx.
> Backtrace from core:
> {code:java}
> #1920 0x00007fac0386da47 in abort () from /usr/lib64/libc.so.6
> #1921 0x00007fac0315b769 in os::abort(bool) () from /usr/java/jdk1.8.0_201-amd64/jre/lib/amd64/server/libjvm.so
> #1922 0x00007fac03320803 in VMError::report_and_die() () from /usr/java/jdk1.8.0_201-amd64/jre/lib/amd64/server/libjvm.so
> #1923 0x00007fac031659f5 in JVM_handle_linux_signal () from /usr/java/jdk1.8.0_201-amd64/jre/lib/amd64/server/libjvm.so
> #1924 0x00007fac031588b8 in signalHandler(int, siginfo*, void*) () from /usr/java/jdk1.8.0_201-amd64/jre/lib/amd64/server/libjvm.so
> #1925 <signal handler called>
> #1926 0x00007fab028f7ef0 in hdfsThreadDestructor (v=0x7fab840919f8) at /home/ambari-qa/hadoop/hadoop-hdfs-project/hadoop-hdfs/src/main/native/libhdfs/os/posix/thread_local_storage.c:43
> #1927 0x00007fac04026bd2 in __nptl_deallocate_tsd () from /usr/lib64/libpthread.so.0
> #1928 0x00007fac04026de3 in start_thread () from /usr/lib64/libpthread.so.0
> #1929 0x00007fac03933ead in clone () from /usr/lib64/libc.so.6
> {code}



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