Hi:
I'm trying to tune the options parameters defined in config.cc, like
OPTION(mon_osd_down_out_interval, 0, OPT_INT, 300), // seconds
OPTION(mds_replay_interval, 0, OPT_FLOAT, 1.0), // time to wait
before starting replay again
OPTION(mds_shutdown_check, 0, OPT_INT, 0),
OPTION(mds_thrash_exports, 0, OPT_INT, 0),
OPTION(mds_thrash_fragments, 0, OPT_INT, 0),
OPTION(mds_dump_cache_on_map, 0, OPT_BOOL, false),
OPTION(mds_dump_cache_after_rejoin, 0, OPT_BOOL, false),
OPTION(mds_verify_scatter, 0, OPT_BOOL, false),
OPTION(mds_debug_scatterstat, 0, OPT_BOOL, false),
OPTION(mds_debug_frag, 0, OPT_BOOL, false),
OPTION(mds_kill_mdstable_at, 0, OPT_INT, 0),
OPTION(mds_kill_export_at, 0, OPT_INT, 0),
OPTION(mds_kill_import_at, 0, OPT_INT, 0),
OPTION(mds_kill_rename_at, 0, OPT_INT, 0),
OPTION(mds_wipe_sessions, 0, OPT_BOOL, 0),
to test the functionalities and performance in ceph,
Could you tell me where to find the definitions of all parameters, so
I could tune Ceph to run with the best performance?
Thanks very much!
Another question is if I want to adjust a config option, but I don't
want to modify the ceph.conf and restart the monitor,
could I use { ceph mon injectargs 0 '--mon_osd_down_out_interval
600' } the instruction to modify the settings?
and how can I query the current settings I had made?
For example
I use the following command to enable debug messages
{ceph mds injectargs 0 '--debug_ms 1 --debug_mds 10'}
How to query the current setting and how to disable or cancel the setting?
Please help me~ Thank you!!!
Best Regards,
Anny
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