********error**********.
When I try to re-execute it, it says 'no connection to the server'. When checked the logs I found
2011-08-09 19:46:00 IST LOG: database system was interrupted; last known up at 2011-08-09 19:45:17 IST
2011-08-09 19:46:00 IST LOG: database system was not properly shut down; automatic recovery in progress
2011-08-09 19:46:00 IST FATAL: the database system is starting up
2011-08-09 19:46:00 IST LOG: consistent recovery state reached at 0/420B8C00
2011-08-09 19:46:00 IST LOG: record with zero length at 0/420B8C00
2011-08-09 19:46:00 IST LOG: redo is not required
2011-08-09 19:46:00 IST LOG: database system is ready to accept connections
2011-08-09 19:46:01 IST LOG: autovacuum launcher started
Fatal Python error: PyThreadState_Get: no current thread
This application has requested the Runtime to terminate it in an unusual way.
Please contact the application's support team for more information.
2011-08-09 19:49:39 IST LOG: server process (PID 2596) exited with exit code 3
2011-08-09 19:49:39 IST LOG: terminating any other active server processes
2011-08-09 19:49:39 IST WARNING: terminating connection because of crash of another server process
2011-08-09 19:49:39 IST DETAIL: The postmaster has commanded this server process to roll back the current transaction and exit, because another server process exited abnormally and possibly corrupted shared memory.
2011-08-09 19:49:39 IST HINT: In a moment you should be able to reconnect to the database and repeat your command.
2011-08-09 19:49:39 IST LOG: all server processes terminated; reinitializing
2011-08-09 19:49:50 IST FATAL: pre-existing shared memory block is still in use
2011-08-09 19:49:50 IST HINT: Check if there are any old server processes still running, and terminate them.
It only crashes when calling the first stated get_mac. If I use any other logic inside the function it works fine. May be problem occurs when using hardware related methods.
When I restart the server manually, there is nothing about the problem.
Chaitanya Kulkarni
On Wed, Aug 10, 2011 at 12:07 PM, Craig Ringer <ringerc@xxxxxxxxxxxxx> wrote:
On 9/08/2011 10:54 PM, c k wrote:You still haven't supplied the error message you get when you run this.
Normal python functions returning text etc. are working but when conatining
import sys
from uuid import getnode as get_mac
mac = get_mac()
return mac
fails. What will be the reason?
In the absence of better information, my guess would be that python's uuid module uses ossp-uuid, same as PostgreSQL does, but a different version or one compiled differently. The PostgreSQL `bin' dir with the postgresql version of the DLL will be in the path before the Python one, so Python is calling into a different version of the DLL than it expects and probably crashing as a result.
That would be consistent with it working from the python command line.
To work around this, I'd either use the ossp-uuid functions via the SPI rather than using the Python UUID module, or I'd remove the OSSP-UUID dll from the postgresql directory. You can certainly try that to see if it helps.
This is one of the joys you get with Windows software not being managed by a central packaging system. Everyone bundles their own versions of all the dependencies, leaving messes like this where two DLLs with the same name aren't quite compatible. Yay!
--
Craig Ringer
