Comments (3)
Hi.
First of all.
All metalogger metdetadata files are rotating and number of change log files can be set in metalogger configuration file.
# number of metadata change log files (default is 50)
# BACK_LOGS = 50
Secondly.
Metalloger by default downloads metadata file from MooseFS master once every 24 hours.
Check /etc/mfs/metalogger.cfg file:
# metadata download frequency in hours (default is 24, should be at least BACK_LOGS/2)
# META_DOWNLOAD_FREQ = 24
You can also change number of previous metadata files.
# number of previous metadata files to be kept (default is 3)
# BACK_META_KEEP_PREVIOUS = 3
from moosefs.
META_DOWNLOAD_FREQ "at least" or "at most" ?
When I: man mfsmetalogger.cfg
META_DOWNLOAD_FREQ
metadata download frequency in hours (default is 24, at most BACK_LOGS/2)
When I: vim mfsmetalogger
# metadata download frequency in hours (default is 24, should be at least BACK_LOGS/2)
# META_DOWNLOAD_FREQ = 24
from moosefs.
And the first question is:
When I restart metalogger, most will download all the files, but rarely will not download. When meet the situation not downloading the metadata files, it will never be able to download, unless restart the mfsmaster. I think that the 'META_DOWNLOAD_FREQ' will not affect at the time restart the metalogger.
from moosefs.
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from moosefs.