Project

General

Profile

Feature #12404

Updated by Kefu Chai almost 9 years ago

*Hi ,all! 

 My ceph version is 0.87.* 

 *There are two questions in ceph use that I can not understand why? 

 First, I have set the pool gjghl max_bytes 1024kb, But I can put 5M data into the pool gjghl. 

 Second , The Pool gjghl    max_bytes is 1024 Kb,I can resize it to smaller size without any warning. For example the  

 pool gjghl    max_bytes is 1024 kb ant it have 5Mb data, I can set the max_bytes to 100 b.But without any warning info to me .and the pool also have 5MB data.It seems that the max_bytes is no useful for pool gjghl * 

 <pre> 
 [root@server22 ~]# ceph osd pool set-quota gjghl max_bytes 1048576 
 set-quota max_bytes = 1048576 for pool gjghl 

 [root@server22 ~]# ceph osd pool get-quota gjghl 
 quotas for pool 'gjghl': 
   max objects: N/A 
   max bytes    : 1024kB 

 [root@server22 ~]# du -sh ./test 
 5.0M      ./test 

 [root@server22 ~]# rados put songtest    ./test -p gjghl 

 [root@server22 ~]# rados ls -p gjghl 
 songtest 

 [root@server22 ~]# rados df 
 pool name         category                   KB        objects         clones       degrad                                                                               ed        unfound             rd          rd KB             wr          wr KB 
 ffdsf             -                            0              1              0                                                                                           0             0              0              0              0              0 
 gggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggg -                                                                                                         0              0              0              0             0              0                                                                                           0              0              0 
 gjghl             -                         5120              1              0                                                                                           0             0              0              0              2           5120 
 hhhaaa            -                            1              4              0                                                                                           0             0         294809         221103              7              1 
 hjkjl             -                            0              1              0                                                                                           0             0              0              0              0              0 
 pool              -                            0              0              0                                                                                           0             0              0              0              0              0 
 pool1             -                            1              3              0                                                                                           0             0              6              3              7              1 
 rbd               -                            0              0              0                                                                                           0             0              0              0              0              0 
 test1112223333    -                            1              4              0                                                                                           0             0         542592         406944              0              0 
 tttttttt          -                            0              1              0                                                                                           0             0              0              0              0              0 
   total used          39729608             15 
   total avail         65076792 
   total space        104806400 



 [root@server22 ~]# ceph df 
 GLOBAL: 
     SIZE          AVAIL        RAW USED       %RAW USED 
     102350M       63554M         38795M           37.90 
 POOLS: 
     NAME                                                                   ID       USED        %USED       MAX AVAIL       OBJECTS 
     rbd                                                                    0            0           0          63554M             0 
     tttttttt                                                               1            0           0          63554M             1 
     pool                                                                   2            0           0          63554M             0 
     ffdsf                                                                  3            0           0          63554M             1 
     pool1                                                                  4           17           0          63554M             3 
     hjkjl                                                                  5            0           0          63554M             1 
     hhhaaa                                                                 6           17           0          63554M             4 
     test1112223333                                                         7           17           0          63554M             4 
     gggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggg       8            0           0          63554M             0 
     gjghl                                                                  9        5120k           0          63554M             1 


 [root@server22 ~]# ceph osd pool set-quota gjghl max_bytes 100 
 set-quota max_bytes = 100 for pool gjghl 
 [root@server22 ~]# ceph osd pool get-quota gjghl 
 quotas for pool 'gjghl': 
   max objects: N/A 
   max bytes    : 100B 
 </pre>

Back