Breaking Varnish

[Iliya Sharov]

amd64 or i386 architecture?

Tim Kientzle пишет:
> We're evaluating Varnish as a possible replacement for our
> installed Squid servers.  Performance-wise, Varnish is very
> impressive, and we're pretty pleased with the configuration
> flexibility.
>
> But...
>
> Under heavy load, we're seeing a lot of segfaults and
> assertion failures.  I've pasted an excerpt below of
> two of the issues we've seen using Varnish 2.0.2 on Linux
> 2.6.21 kernel with the default VCL (using command-line options
> to set the listen address and the addresses of the two back-end
> servers).
>
> We're going to repeat these tests and see if we can get
> more detail, possibly including core dumps.  What other
> information would be useful in diagnosing and fixing
> these issues?
>
> Cheers,
>
> Tim Kientzle
>
> ==========================================================
>
> 1) Varnish repeatedly died due to SIGSEGV:
>
> child (2816) Started
> Child (2816) said Closed fds: 4 7 8 10 11
> Child (2816) said Child starts
> Child (2816) said managed to mmap 49392648192 bytes of 49392648192
> Child (2816) said Ready
> Child (2816) died signal=11
> Child cleanup complete
>
> 2) Varnish repeatedly died due to SIGABRT:
>
> child (3017) Started
> Child (3017) said Closed fds: 4 7 8 10 11
> Child (3017) said Child starts
> Child (3017) said managed to mmap 49392648192 bytes of 49392648192
> Child (3017) said Ready
> Child (3017) died signal=6
> Child (3017) Panic message: Assert error in cnt_lookup(),  
> cache_center.c line 625:
>    Condition(sp->objhead != NULL) not true. thread = (cache-worker)sp  
> = 0x2afee0fb3008 {
>    fd = -1, id = 15, xid = 0,
>    client = 10.2.8.27:45430,
>    step = STP_DONE,
>    handling = DELIVER,
>    ws = 0x2afee0fb3078 {
>      id = "sess",
>      {s,f,r,e} = {0x2afee0fb37b0,,+587,(nil),+8192},
>    },
> }, 
> _______________________________________________
> varnish-misc mailing list
> varnish-misc at projects.linpro.no
> http://projects.linpro.no/mailman/listinfo/varnish-misc
>