Nope.. not seen this before. 

Can you share more details of the log messages, etc? The problem might have to 
do with the JSON files being very large... because the segmentation fault that 
triggered the JVM (Drillbit) crash hints at that during the write of the 
Parquet files. 

I take it you are writing it to the local FS's temp space before moving it into 
HDFS. Is there a reason you're not directly writing it into HDFS?



-----Original Message-----
From: Lee, David [mailto:david....@blackrock.com] 
Sent: Thursday, June 15, 2017 7:20 AM
To: user@drill.apache.org
Subject: SIGSEGV error - StubRoutines::jlong_disjoint_arraycopy

Starting last week we started seeing the error below which terminates the drill 
service pid.. My research suggests that it is a space issue with /tmp, but we 
have plenty of free space..

I'm using dfs.tmp to convert JSON files (2 to 3 gig each) into Parquet.. 

Anyone encounter this issue before? I've tried using different versions of the 
JVM with no success..

Output from drillbit_out

672 values, 512,796B raw, 465,932B comp, 1 pages, encodings: [RLE, 
PLAIN_DICTIONARY], dic { 3,376 entries, 27,008B raw, 3,376B comp} Jun 15, 2017 
1:39# # A fatal error has been detected by the Java Runtime Environment:
#
#  SIGSEGV (0xb) at pc=0x00007f724c052570, pid=33814, tid=140128310007552 # # 
JRE version: Java(TM) SE Runtime Environment (8.0_45-b14) (build 1.8.0_45-b14) 
# Java VM: Java HotSpot(TM) 64-Bit Server VM (25.45-b02 mixed mode linux-amd64 
compressed oops) # Problematic frame:
# v  ~StubRoutines::jlong_disjoint_arraycopy
#
# Core dump written. Default location: /usr/hdp/2.3.4.0-3485/core or core.33814 
# # An error report file with more information is saved as:
# /tmp/hs_err_pid33814.log
#
# If you would like to submit a bug report, please visit:
#   http://bugreport.java.com/bugreport/crash.jsp
#

Changed parquet settings:

store.parquet.block-size                CHANGED 134217728   < Matches HDFS 
block size. I FTP the files from DFS to HDFS afterwards.
store.parquet.enable_dictionary_encoding                CHANGED  true   < 
Dictionary Encoding turned on.


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