[jira] [Created] (HDFS-12606) JVM crashes when running NNBench on EC enabled.

["Lei (Eddy) Xu (JIRA)" <ji...@apache.org>]

Lei (Eddy) Xu created HDFS-12606:
------------------------------------

             Summary: JVM crashes when running NNBench on EC enabled. 
                 Key: HDFS-12606
                 URL: https://issues.apache.org/jira/browse/HDFS-12606
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: erasure-coding
    Affects Versions: 3.0.0-beta1
            Reporter: Lei (Eddy) Xu
            Priority: Critical


When running NNbench on a RS(6,3) directory, JVM crashes double free or corruption:

{code}
08:16:29 Running NNBENCH.
08:16:29 WARNING: Use "yarn jar" to launch YARN applications.
08:16:31 NameNode Benchmark 0.4
08:16:31 17/10/04 08:16:31 INFO hdfs.NNBench: Test Inputs: 
08:16:31 17/10/04 08:16:31 INFO hdfs.NNBench: Test Operation: create_write
08:16:31 17/10/04 08:16:31 INFO hdfs.NNBench: Start time: 2017-10-04 08:18:31,16
:
:
08:18:54 *** Error in `/usr/java/jdk1.8.0_144/bin/java': double free or corruption (out): 0x00007ffb55dbfab0 ***
08:18:54 ======= Backtrace: =========
08:18:54 /lib64/libc.so.6(+0x7c619)[0x7ffb5b85f619]
08:18:54 [0x7ffb45017774]
08:18:54 ======= Memory map: ========
08:18:54 00400000-00401000 r-xp 00000000 ca:01 276832134 /usr/java/jdk1.8.0_144/bin/java
08:18:54 00600000-00601000 rw-p 00000000 ca:01 276832134 /usr/java/jdk1.8.0_144/bin/java
08:18:54 0173e000-01f91000 rw-p 00000000 00:00 0 [heap]
08:18:54 603600000-614700000 rw-p 00000000 00:00 0 
08:18:54 614700000-72bd00000 ---p 00000000 00:00 0 
08:18:54 72bd00000-73a500000 rw-p 00000000 00:00 0 
08:18:54 73a500000-7c0000000 ---p 00000000 00:00 0 
08:18:54 7c0000000-7c0400000 rw-p 00000000 00:00 0 
08:18:54 7c0400000-800000000 ---p 00000000 00:00 0 
08:18:54 7ffb20174000-7ffb208ab000 rw-p 00000000 00:00 0 
08:18:54 7ffb208ab000-7ffb20975000 ---p 00000000 00:00 0 
08:18:54 7ffb20975000-7ffb20b75000 rw-p 00000000 00:00 0 
08:18:54 7ffb20b75000-7ffb20d75000 rw-p 00000000 00:00 0 
08:18:54 7ffb20d75000-7ffb20d8a000 r-xp 00000000 ca:01 209866 /usr/lib64/libgcc_s-4.8.5-20150702.so.1
08:18:54 7ffb20d8a000-7ffb20f89000 ---p 00015000 ca:01 209866 /usr/lib64/libgcc_s-4.8.5-20150702.so.1
08:18:54 7ffb20f89000-7ffb20f8a000 r--p 00014000 ca:01 209866 /usr/lib64/libgcc_s-4.8.5-20150702.so.1
08:18:54 7ffb20f8a000-7ffb20f8b000 rw-p 00015000 ca:01 209866 /usr/lib64/libgcc_s-4.8.5-20150702.so.1
08:18:54 7ffb20f8b000-7ffb20fbd000 r-xp 00000000 ca:01 553654092 /usr/java/jdk1.8.0_144/jre/lib/amd64/libsunec.so
08:18:54 7ffb20fbd000-7ffb211bc000 ---p 00032000 ca:01 553654092 /usr/java/jdk1.8.0_144/jre/lib/amd64/libsunec.so
08:18:54 7ffb211bc000-7ffb211c2000 rw-p 00031000 ca:01 553654092 /usr/java/jdk1.8.0_144/jre/lib/amd64/libsunec.so
:
:
08:18:54 7ffb5c3fb000-7ffb5c3fc000 r--p 00000000 00:00 0 
08:18:54 7ffb5c3fc000-7ffb5c3fd000 rw-p 00000000 00:00 0 
08:18:54 7ffb5c3fd000-7ffb5c3fe000 r--p 00021000 ca:01 637266 /usr/lib64/ld-2.17.so
08:18:54 7ffb5c3fe000-7ffb5c3ff000 rw-p 00022000 ca:01 637266 /usr/lib64/ld-2.17.so
08:18:54 7ffb5c3ff000-7ffb5c400000 rw-p 00000000 00:00 0 
08:18:54 7ffdf8767000-7ffdf8788000 rw-p 00000000 00:00 0 [stack]
08:18:54 7ffdf878b000-7ffdf878d000 r-xp 00000000 00:00 0 [vdso]
08:18:54 ffffffffff600000-ffffffffff601000 r-xp 00000000 00:00 0 [vsyscall]
{code}

It happens on both {{jdk1.8.0_144}} and {{jdk1.8.0_121}} in our environments. 

It is highly suspicious due to the native code used in erasure coding, i.e., ISA-L is not thread safe [https://01.org/sites/default/files/documentation/isa-l_open_src_2.10.pdf]



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