[ceph-users] CephFS MDS optimal setup on Google Cloud

2018-12-21 Thread Mahmoud Ismail
Hello, I'm doing benchmarks for metadata operations on CephFS, HDFS, and HopsFS on Google Cloud. In my current setup, i'm using 32 vCPU machines with 29 GB memory, and i have 1 MDS, 1 MON and 3 OSDs. The MDS and the MON nodes are co-located on one vm, while each of the OSDs is on a separate vm wit

[ceph-users] Fwd: CephFS MDS optimal setup on Google Cloud

2019-01-04 Thread Mahmoud Ismail
Forgot to mention that i'm using Ceph 13.2.2 on Centos 7. Any ideas? -- Forwarded message - From: Mahmoud Ismail Date: Fri, Dec 21, 2018 at 4:44 PM Subject: CephFS MDS optimal setup on Google Cloud To: Hello, I'm doing benchmarks for metadata operations on CephFS,

Re: [ceph-users] CephFS MDS optimal setup on Google Cloud

2019-01-20 Thread Mahmoud Ismail
On Mon, 7 Jan 2019 at 21:04, Patrick Donnelly wrote: > Hello Mahmoud, > > On Fri, Dec 21, 2018 at 7:44 AM Mahmoud Ismail > wrote: > > I'm doing benchmarks for metadata operations on CephFS, HDFS, and HopsFS > on Google Cloud. In my current setup, i'm using 32 vC

[ceph-users] CephFS MDS journal

2019-02-01 Thread Mahmoud Ismail
Hello, I'm a bit confused about how the journaling actually works in the MDS. I was reading about these two configuration parameters (journal write head interval) and (mds early reply). Does the MDS flush the journal synchronously after each operation? and by setting mds eary reply to true it al

Re: [ceph-users] CephFS MDS journal

2019-02-04 Thread Mahmoud Ismail
On Mon, Feb 4, 2019 at 4:16 PM Gregory Farnum wrote: > On Fri, Feb 1, 2019 at 2:29 AM Mahmoud Ismail < > mahmoudahmedism...@gmail.com> wrote: > >> Hello, >> >> I'm a bit confused about how the journaling actually works in the MDS. >> >> I wa

Re: [ceph-users] CephFS MDS journal

2019-02-04 Thread Mahmoud Ismail
On Mon, Feb 4, 2019 at 4:35 PM Gregory Farnum wrote: > > > On Mon, Feb 4, 2019 at 7:32 AM Mahmoud Ismail < > mahmoudahmedism...@gmail.com> wrote: > >> On Mon, Feb 4, 2019 at 4:16 PM Gregory Farnum wrote: >> >>> On Fri, Feb 1, 2019 at 2:29 AM Mahmoud

Re: [ceph-users] CephFS MDS journal

2019-02-05 Thread Mahmoud Ismail
On Mon, Feb 4, 2019 at 10:10 PM Gregory Farnum wrote: > > On Mon, Feb 4, 2019 at 8:03 AM Mahmoud Ismail < > mahmoudahmedism...@gmail.com> wrote: > >> On Mon, Feb 4, 2019 at 4:35 PM Gregory Farnum wrote: >> >>> >>> >>> On Mon, Fe