Hi. Our autotest runs log just way too much debug stuff. A 20-minute
run often creates >10GB uncompressed data. That's enough that
compressing & transporting it for archival slows down the test
significantly.
Ceph devs, I need your help in determining what debug logs can be
turned down a notch or two without losing anything really valuable.
The base config is at ceph-autotests.git teuthology/ceph.conf,
relevant lines pasted below:
[mon]
lockdep = 1
debug mon = 20
debug paxos = 20
debug auth = 20
debug ms = 1
[osd]
lockdep = 1
debug ms = 1
debug osd = 25
debug monc = 20
debug journal = 20
debug filestore = 20
[mds]
lockdep = 1
debug ms = 1
debug mds = 20
debug auth = 20
debug monc = 20
mds debug scatterstat = true
mds verify scatter = true
mds log max segments = 2
mds cache size = 10000
mds debug frag = true
What can I turn down? If I don't get helpful suggestions, everything
20 goes down to 10 ;)
The worst that happens if we have the defaults not include some debug
you wanted see is you make your test override it and re-run; for
example,
class ceph_dbench(skeleton.CephTest):
...
@skeleton.role('client')
def init_025_moar_debug(self):
self.ceph_conf['osd']['debug osd'] = 9000
should do it just fine.
(We can make that even easier, if it becomes commonplace enough. My
motto is to first feel the pain. YAGNI and all that.)
--
:(){ :|:&};:
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