Server hangs when trace is running
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Key: CORE-3512
URL: http://tracker.firebirdsql.org/browse/CORE-3512
Project: Firebird Core
Issue Type: Bug
Components: Engine
Affects Versions: 2.5.0, 3.0 Initial
Reporter: Alexander Peshkov
Issue reported by Pavel Cisar:
GLDS found a problem with fbtracemgr in 2.5.1 snapshot builds (lock-ups)
on Linux and I confirmed it.
After using interactive fbtracemgr for a few minutes I had another lockup, was
not able to connect to any db, one old fb process was still working (i.e. not
completely locked up). What happened is that I was running load simulator and
started interactive trace manager. It was working fine for a few minutes, then
I noticed that load simulator stuck. Checked fb processes on server and they
were not working. Ctrl-C'ed fbtracemgr. Tried to connect with embedded isql to
that and to different db -- no luck (no response). Killed all fb processes
connected to that db. Newest lock file was used only by that old working fb
process, other older lock files were not used by any process. Still was not
able to connect (stack traces for stuck isql below). Commenting out
AuditTraceConfigFile in firebird.conf and undoing fbtrace.conf did not help.
Renaming /tmp/firebird/fb_trace.{57CC44CD-3A56-92D4-3CF1-2C10B655CBA1}.0000000
helped, server is alive again.
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