On Thu, Dec 2, 2010 at 1:28 PM, Simon Males <[email protected]> wrote: > Just wanted to share my understanding of tracking down 503 / Guru > meditation errors. > > Steps: > 1. Source the XID > 2. Start varnishlog with -d > 3. Search the output for the above mentioned XID > 4. Hopefully the log entry will provide a clue > > Though how long do the shared memory logs exist?
Depends on how much traffic you have. On a busy site it should be a minute or so. Try logging to disk and you notice how long 80MB (the default) will last. It will give you an indication on how long the shmlog lasts. However, the shmlog has some fixed length records so it wastes a bit of space compared to the output to disk. > Or is it common practice to write varnishlog to disk in production > environments? No. On Linux the vm get's slightly dazzled by all the IO and will behave strangely. You can instruct varnishlog to only log 503's. That might be ideal for you. -- Per Buer, Varnish Software Phone: +47 21 98 92 61 / Mobile: +47 958 39 117 / Skype: per.buer Varnish makes websites fly! _______________________________________________ varnish-misc mailing list [email protected] http://www.varnish-cache.org/lists/mailman/listinfo/varnish-misc
