[Zope] Lost connection to MySQL server during query

Chris Muldrow cmuldrow at fredericksburg.com
Thu Oct 9 09:18:17 EDT 2003


We're getting several ZMySQLDA exceptions in our logs right before one of
our ZEO clients locks up. My reading of the errors below is some sort of
network interruption, but I wanted to post and see if anyone else had any
ideas about what might be happening.

2003-10-09T06:15:30 ERROR(200) ZMySQLDA exception during _begin
Traceback (innermost last):
  File /var/www/zope/ZEOZOPE/lib/python/Products/ZMySQLDA/db.py, line 367,
in _begin
OperationalError: (2013, 'Lost connection to MySQL server during query')
------
2003-10-09T06:15:37 INFO(0) ZServer Incoming connection from
12.47.113.36:59502
------
2003-10-09T06:15:38 INFO(0) ZServer Successful login.
------
2003-10-09T06:15:53 ERROR(200) ZODB A storage error occured during
transaction abort.  This shouldn't happen.
Traceback (innermost last):
File /var/www/zope/zope262c1/lib/python/ZODB/Transaction.py, line 262, in
commit
  File /var/www/zope/zope262c1/lib/python/ZODB/Transaction.py, line 393, in
_commit_error
AttributeError: Surrogate instance has no attribute '_p_oid'
------
2003-10-09T06:15:53 INFO(0) ZODB conflict error at
/VirtualHostBase/http/fredericksburg.com:80//VirtualHostRoot/gtl/churches/
(2 conflicts since startup at 2003-10-08T18:09:23)
------
2003-10-09T06:16:00 ERROR(200) ZMySQLDA exception during _begin
Traceback (innermost last):
  File /var/www/zope/ZEOZOPE/lib/python/Products/ZMySQLDA/db.py, line 367,
in _begin
OperationalError: (2013, 'Lost connection to MySQL server during query')
------
2003-10-09T06:16:00 PANIC(300) ZODB A storage error occurred in the last
phase of a two-phase commit.  This shouldn't happen.
Traceback (innermost last):
: File /var/www/zope/zope262c1/lib/python/ZODB/Transaction.py, line 401, in
_commit_error
  File /var/www/zope/zope262c1/lib/python/Shared/DC/ZRDB/TM.py, line 60, in
abort
  File /var/www/zope/ZEOZOPE/lib/python/Products/ZMySQLDA/db.py, line 405,
in _abort
error: release unlocked lock




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