Do you have any reason for this value? :)) On Sat, Jun 20, 2020 at 9:24 PM Frank R <frankaritchie@xxxxxxxxx> wrote: > With ceph I have always used it to set the number of WALs to recycle, > ie to recycle 8 WALs I use: > > " > recycle_log_file_num=8 > " > > On Sat, Jun 20, 2020 at 12:47 PM Seena Fallah <seenafallah@xxxxxxxxx> > wrote: > > > > Yes here I found it’s a boolean (= true) > > Will this true convert to 1? > > > > On Sat, Jun 20, 2020 at 9:15 PM Frank R <frankaritchie@xxxxxxxxx> wrote: > >> > >> also see: > >> > >> https://github.com/facebook/rocksdb/wiki/WAL-Performance > >> > >> " > >> Options.recycle_log_file_num = true will keep a pool of WAL files and > >> try to reuse them. When writing to an existing log file, random writes > >> are used from size 0. Before writes hit the end of the file, the file > >> size doesn't change, so the I/O for metadata might be avoided (also > >> depends on file system mount options). Assuming most WAL files will > >> have similar sizes, I/O needed for metadata will be minimal. > >> " > >> > >> On Sat, Jun 20, 2020 at 12:43 PM Frank R <frankaritchie@xxxxxxxxx> > wrote: > >> > > >> > I believe it is the number of WALs that should be reused and should be > >> > equal to write_buffer_number but don't quote me. > >> > > >> > On Sat, Jun 20, 2020 at 11:35 AM Seena Fallah <seenafallah@xxxxxxxxx> > wrote: > >> > > > >> > > Hi. I found a default rocksdb option in bluestore that I can't find > in > >> > > facebook rocksdb. > >> > > recycle_log_file_num this config if a boolean config in facebook > >> > > rocksdb but in default Ceph configs the value of this is 4. > >> > > Can someone tell what it means? > >> > > _______________________________________________ > >> > > ceph-users mailing list -- ceph-users@xxxxxxx > >> > > To unsubscribe send an email to ceph-users-leave@xxxxxxx > _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
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