Bug #42636 mysql proxy crash with Segmentation fault when using Lua script

• Submitted: 6 Feb 2009 1:39
• Modified: 21 Mar 2009 9:16
• Reporter: jenny chen
• Status: No Feedback
• Category: MySQL Proxy: Core
• Severity: S2 (Serious)
• Version: 0.7.0
• OS: Solaris
• CPU Architecture: Any

[6 Feb 2009 1:39] jenny chen

Description:
MySQL proxy core dump with segmentation fault when running a simple query to the World database and use lua script to distribute the query to the two mysql instances

How to repeat:
The proxy src was downloaded at:
https://launchpad.net/mysql-proxy ("trunk" series)
1. Start the mysql proxy using the command:
LUA_PATH="/mysql-proxy/share/mysql-proxy/?.lua"
export LUA_PATH
/mysql-proxy/bin/mysql-proxy --proxy-address=10.2.3.3:3306 --proxy-backend-addresses=10.2.3.3:3307 --proxy-backend-addresses=10.2.3.3:3308 --proxy-lua-script=/mysql-proxy/share/mysql-proxy/sql.lua

2. run mysqlslap to connect the mysql-proxy executing the query to the world database:
mysqlslap --concurrency=10 --host=10.2.3.3 --port=3306 --create-schema=world --query='/*mysql1 */select * FROM City' --password='abc' --number-of-queries=2000

3. the mysql-proxy crash with Segmentation fault. And I'm attaching the stack trace of the proxy during the crash, and the "sql.lua" used in the test

[6 Feb 2009 1:41] jenny chen

stack trace of proxy

Attachment: pstack.core (application/octet-stream, text), 1.83 KiB.

[14 Feb 2009 11:02] Sveta Smirnova

Thank you for the report.

I can not repeat described behavior neither on Solaris 10 nor on OpenSolaris. Please indicate accurate version of Solaris you run and revision of MySQL Proxy bug is repeatable with.

[17 Feb 2009 19:30] jenny chen

The OS version is: Solaris Express Community Edition snv_96 SPARC

[22 Mar 2009 0:00] Bugs System

No feedback was provided for this bug for over a month, so it is
being suspended automatically. If you are able to provide the
information that was originally requested, please do so and change
the status of the bug back to "Open".