[IMPALA-591] Impalad SIGSEV on GROUP BY query with Avro data 7fa2526910f4

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Works for Me
• Affects Version/s: Impala 1.0.1
• Fix Version/s: Impala 1.2
• Labels: impala
• Environment: Cloudera Quick Start VM, CDH 4.3, CentOS 6.2
• Assignee: Skye Wanderman-Milne
• Reporter: Tristan Stevens
• Created: 16/Sep/13 20:59
• Updated: 20/Dec/15 00:05
• Resolved: 22/Sep/13 14:48

Description

When performing SELECT with GROUP BY on Avro data (no compression):

Connected to localhost.localdomain:21000
Server version: impalad version 1.0.1 RELEASE (build df844fb967cec8740f08dfb8b21962bc053527ef)
Welcome to the Impala shell. Press TAB twice to see a list of available commands.

Copyright (c) 2012 Cloudera, Inc. All rights reserved.

(Shell build version: Impala Shell v1.0.1 (df844fb) built on Tue Jun 4 08:08:13 PDT 2013)
[localhost.localdomain:21000] > desc tweets2;
Query: describe tweets2
Query finished, fetching results ...
----------------------------------------------

name

type

comment

----------------------------------------------

created_at	string	from deserializer
tweet	string	from deserializer
id	bigint	from deserializer
in_reply_to_status_id	bigint	from deserializer
in_reply_to_user_id	bigint	from deserializer
user_id	bigint	from deserializer
user_screen_name	string	from deserializer
geo_lat	double	from deserializer
geo_long	double	from deserializer
geo_type	string	from deserializer

----------------------------------------------
Returned 10 row(s) in 1.02s

[localhost.localdomain:21000] > select count, user_screen_name
> from tweets2
> group by user_screen_name;
Query: select count, user_screen_name from tweets2 group by user_screen_name
Query finished, fetching results ...
Error communicating with impalad: TSocket read 0 bytes
[Not connected] >

SIGSEGV (0xb) at pc=0x00007fa2526910f4