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varnishcache
varnish-cache
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d2e880ff
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d2e880ff
authored
Jun 06, 2013
by
Per Buer
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How to debug crashing child.
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troubleshooting.rst
doc/sphinx/users-guide/troubleshooting.rst
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doc/sphinx/users-guide/troubleshooting.rst
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d2e880ff
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@@ -67,8 +67,20 @@ errors will be logged in syslog. It might look like this::
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@@ -67,8 +67,20 @@ errors will be logged in syslog. It might look like this::
In this situation the mother process assumes that the cache died and
In this situation the mother process assumes that the cache died and
killed it off.
killed it off.
XXX: Describe crashing child process and crashing mother process here too.
In certain situation the child process might crash itself. This might
XXX: panic.show
happen because internal integrity checks fail as a result of a bug.
In these situations the child will start back up again right away but
the cache will be cleared. A panic is logged with the mother
process. You can inspect the stack trace with the CLI command
panic.show.
Some of these situations might be caused by bugs, other by
misconfigations. Often we see varnish running out of session
workspace, which will result in the child aborting its execution.
In a rare event you might also see a segmentation fault or bus
error. These are either bugs, kernel- or hardware failures.
Varnish gives me Guru meditation
Varnish gives me Guru meditation
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