Cannot upload big size file into Ceph bluestore OSD

[Tone Zhang]

Deployed 3 Kolla Ceph bluestore OSDs, when upload one big size file (whose size is over 100MB), Ceph reports error and forbid the upload.

The command is "rados put file1 file1 --pool=poolname".

The error information is "(27) File too large".

[Tone Zhang (tone.zhang)]

In Ceph bluestore, the default value of "osd max object size" is 100MB. Any object whose size is over the limitation will be rejected by Ceph.

In Ceph filestore OSD, the default value is 1GB.

It is better to extend the value of bluestore OSD to be the same as filestore OSD.

[Tone Zhang (tone.zhang)]

After check further, the default osd_max_object_size in bluestore and filestore are both 128MB.
It seems no negative impact when migrate data from filestore to bluestore OSD.

[kayes (kayesullah1)]

ceph config set global osd_max_object_size 2G

After that i am able to upload 1.5G file. you can try it