Hi Ted, Thank you for reply. I am running with the default settings. Sent from my iPhone
> On 12 May 2015, at 22:02, Ted Yu <[email protected]> wrote: > > Can you show us compaction related parameters you use ? > > e.g. hbase.hregion.majorcompaction , hbase.hregion.majorcompaction.jitter , > etc > > On Tue, May 12, 2015 at 9:52 AM, Akmal Abbasov <[email protected]> > wrote: > >> HI, >> I am using HBase 0.98.7. >> I am using HBase snapshots to backup data. I create snapshot of tables >> each our. >> Each create snapshot process will cause the flush of the memstore, and >> creation of hfiles. >> When the number of hfiles will reach 3 the MINOR compaction process will >> start for each CF. >> Ok, I was expecting that the compaction will process only small hfiles, >> and I won’t have problems with moving all data to archive folder >> each time after compaction process ends. >> But most of the times, the minor compaction is promoted to major(more than >> 100 in 24 hours without loads). >> As far as I know, the only possibility for this is that all hfiles are >> eligible for compaction. >> But when I tested the archive folder for a CF I see the strange situation >> -rw-r--r-- 3 akmal supergroup 1.0 K 2015-05-10 06:04 >> /hbase/archive/data/default/table1/0e8e3bf44a2ea5dfaa8a9c58d99b92e6/c/36dc06f4c34242daadc343d857a35734 >> -rw-r--r-- 3 akmal supergroup 1.0 K 2015-05-10 06:04 >> /hbase/archive/data/default/table1/0e8e3bf44a2ea5dfaa8a9c58d99b92e6/c/7e8b993f97b84f4594542144f15b0a1e >> -rw-r--r-- 3 akmal supergroup 1.1 K 2015-05-10 06:04 >> /hbase/archive/data/default/table1/0e8e3bf44a2ea5dfaa8a9c58d99b92e6/c/b9afc64792ba4bf99a08f34033cc46ac >> -rw-r--r-- 3 akmal supergroup 638.4 K 2015-05-10 06:04 >> /hbase/archive/data/default/table1/0e8e3bf44a2ea5dfaa8a9c58d99b92e6/c/dff846ae4fc24d418289a95322b35d46 >> -rw-r--r-- 3 akmal supergroup 1.0 K 2015-05-10 08:50 >> /hbase/archive/data/default/table1/0e8e3bf44a2ea5dfaa8a9c58d99b92e6/c/228eee22c32e458e8eb7f5d031f64b58 >> -rw-r--r-- 3 akmal supergroup 1.0 K 2015-05-10 08:50 >> /hbase/archive/data/default/table1/0e8e3bf44a2ea5dfaa8a9c58d99b92e6/c/529257432308466f971e41db49ecffdf >> -rw-r--r-- 3 akmal supergroup 638.5 K 2015-05-10 08:50 >> /hbase/archive/data/default/table1/0e8e3bf44a2ea5dfaa8a9c58d99b92e6/c/839d3a6fc523435d8b44f63315fd11b8 >> -rw-r--r-- 3 akmal supergroup 1.0 K 2015-05-10 08:50 >> /hbase/archive/data/default/table1/0e8e3bf44a2ea5dfaa8a9c58d99b92e6/c/8c245e8661b140439e719f69a535d57f >> -rw-r--r-- 3 akmal supergroup 1.0 K 2015-05-10 11:37 >> /hbase/archive/data/default/table1/0e8e3bf44a2ea5dfaa8a9c58d99b92e6/c/23497a31d3e721fe9b63c58fbe0224d5 >> -rw-r--r-- 3 akmal supergroup 638.7 K 2015-05-10 11:37 >> /hbase/archive/data/default/table1/0e8e3bf44a2ea5dfaa8a9c58d99b92e6/c/8c9af0357d164221ad46b336cd660b30 >> -rw-r--r-- 3 akmal supergroup 1.0 K 2015-05-10 11:37 >> /hbase/archive/data/default/table1/0e8e3bf44a2ea5dfaa8a9c58d99b92e6/c/8eb55b43c22d434954e2e0bfda656018 >> -rw-r--r-- 3 akmal supergroup 1.0 K 2015-05-10 11:37 >> /hbase/archive/data/default/table1/0e8e3bf44a2ea5dfaa8a9c58d99b92e6/c/b8b6210d9e6d4ec2344238c6e9c17ddf >> >> As I understood this files were copied to archive folder after compaction. >> The part I didn’t understand is, why the file with 638 K was also selected >> for compaction? >> Any ideas? >> Thank you. >> >> Kind regards, >> Akmal Abbasov >> >> >>
