[TYPO3-english] Locking, PHP warnings and uncaught exceptions

[Rudi Meyer]

Hi,

I'm getting some log entries from 't3lib/class.t3lib_lock.php',  when
its trying to get a lock, presumably in page generation. First i used
'standard' locking, and later changed to 'semaphore' to see if it
would resolve the problem.

"standard" locking:
Core: Exception handler (WEB): Uncaught TYPO3 Exception: #1294586098:
Lock file could not be created | RuntimeException thrown in file
/var/www/lib/typo3_src-4.6.8/t3lib/class.t3lib_lock.php in line 192.
Requested URL: http://website.com/

"semaphore" locking:
Core: Error handler (FE): PHP Warning: sem_acquire(): failed to
acquire key 0x91b615ca: Identifier removed in
/var/www/lib/typo3_src-4.6.8/t3lib/class.t3lib_lock.php line 211

The entries occur when there is a lot of traffic on the website, I can
recreate them my self by just forcefully refreshing the same URL over
and over again. It seems to me that TYPO3 tries to lock and generate
the same page multiple times simultaneously - but with the same lock
"id"?
Why isn't this handled? Have I configured something wrong?

--
Rudi Meyer
Forlaget Systime