Hi Team,

      We are newly using ceph with two OSD and two clients, our requirement is 
when we write date through clients it should see in another client also,  
storage is mounted using rbd because we running git clone with large amount of 
small file and it is fast when use rbd mount, but data not sync in both the 
clients. 

      Another option we used to mount Cephfuse , here i can see the data in 
both the clients but it is too slow with large amount of small file(202M) using 
git clone. Also tried NFS etc but it is slow.

      Kindly share the solution to achieve our requirements.


Git clone using RBD mount but data not sync with two clents with same image 
partition.
time git clone https://github.com/elastic/elasticsearch.git
Initialized empty Git repository in /home/sas/cide/elasticsearch/.git/
remote: Counting objects: 359724, done.
remote: Compressing objects: 100% (55/55), done.
remote: Total 359724 (delta 59), reused 20 (delta 20), pack-reused 359649
Receiving objects: 100% (359724/359724), 129.04 MiB | 8.04 MiB/s, done.
Resolving deltas: 100% (203986/203986), done.

real    0m49.255s
user    0m19.371s
sys    0m3.762s

Git clone using cephfuse partition mount and i can see the data in both the 
clients but its take 11m time git clone 
https://github.com/elastic/elasticsearch.git

Initialized empty Git repository in /home/sas/cide1/elasticsearch/.git/

remote: Counting objects: 359724, done.

remote: Compressing objects: 100% (55/55), done.

remote: Total 359724 (delta 59), reused 20 (delta 20), pack-reused 359649

Receiving objects: 100% (359724/359724), 129.04 MiB | 473 KiB/s, done.

Resolving deltas: 100% (203986/203986), done.



real    11m16.371s

user    0m35.235s

sys    1m59.389s



Regards
Prabu





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