Hi, everyone.
Recently, I've got a need to check the real size of an rbd image. I followed
the instructions in "http://ceph.com/planet/rbd-image-real-size/;. the result
is shown as follows:
[xuxuehan@localhost ~]$ rbd diff xxh_pool/clone_test_img2
OffsetLength Type
0 4194304 data
Hi, everyone.
What is Objecter::Op::replay_version used for?
Thanks:-)___
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Hi, everyone.
What is Objecter::Op::replay_version used for?
Thanks:-)
___
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Hi, everyone.
Sometimes, I've got a need to know the ip address of the ceph client at the
time, is there any way to list those ip address in ceph cluster? I'm using ceph
rbd with kvm servers.
Thank you:-)
___
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Hi, everyone.
Sometimes, I've got a need to know the ip address of the ceph client at the
time, is there any way to list those ip address in ceph cluster?
Thank you:-)___
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Hi, everyone.
In our online system, some OSDs always fail due to the following error:
2016-10-25 19:00:00.626567 7f9a63bff700 -1 error_msg osd/ReplicatedPG.cc: In
function 'void ReplicatedPG::wait_for_unreadable_object(const hobject_t&,
OpRequestRef)' thread 7f9a63bff700 time 2016-10-25
Hi, everyone.
In the PGLog::merge_log method, pg log entries in "olog" are inserted into
current PGLog's "missing" structure only when they have "version" larger than
current PGLog's head and its target object has "soid" less than current pg
info's last_backfill. What does "last_backfill" in
Hi, everyone.
What are the meanings of the fields actingbackfill, want_acting and
backfill_targets of the PG class?
Thank you:-)___
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Hi, everyone.
I'm trying to write a program based on the librbd API that transfers snapshot
diffs between ceph clusters without the need for a temporary storage which is
required if I use the "rbd export-diff" and "rbd import-diff" pair. I found
that the configuration object "g_conf" and ceph
Hi, everyone.
Recently, I deployed a ceph cluster manually. And I found that, after I start
the ceph osd through "/etc/init.d/ceph -a start osd", the size of the log file
"ceph-osd.log" is 0, and its owner isnot "ceph" which I configured in
/etc/ceph/ceph.conf but the user who actually run
superblock.current_epoch is read from the disk by OSD::read_superblock and has't been updated by a monitor at boot time, which means it is not the real curent epoch but an old one. How can OSD get the current map using an old epoch?
On xxhdx1985126 <xxhdx1985...@163.com>, Oct 23, 2016 3:13 AM wrote:
wrote:
The osd needs to know where it thought data was, in particular so it knows what it has. Then it gets the current map so it knows who to talk to so it can catch back up.
Sent from my iPhone
On Oct 22, 2016, at 7:12 AM, xxhdx1985126 <xxhdx1985...@163.com> wrote:
Hi, everyone.
I'm trying to read the source code that boots an OSD instance, and I find
something really overwhelms me.
In the OSD::init() method, it read the OSDSuperblock by calling
OSD::read_superblock(), and the it tried to get the "current" map : "osdmap =
Hi, everyone.
If one OSD's state transforms from up to down, by "kill -i" for example, will
an "AdvMap" event be triggered on other related OSDs?___
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Sorry, I forgot to tell that those pgs assigned to the kill osd are still
writable after I raise min_size from 1 to 2 but before I restarted the killed
osd.
Forwarding messages
From: "xxhdx1985126" <xxhdx1985...@163.com>
Date: 2016-10-09 18:08:45
To: &quo
Hi, everyone.
I'm a newbie about ceph and trying to do some test to understand the behavior
of ceph. The following situation really overwhelmed me:
I first killed a osd, which made the size of the acting set of some pg became
1. Then I set min_size from 1 to 2, after which I started the
Hi, everyone.
I've got a problem, here. Due to some miss operations, I deleted all three
replicas of my data, is there any way to recover it?
This is a very urgent problem.
Please help me, Thanks.___
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Hi, everyone.
After the file system synchronization, does OSD delete those journals that
corresponds to operations before the synchronization point?___
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Hi, everyone.
On the "Block Storage" page, I found this: "Ceph RBD interfaces with the same
Ceph object storage system that provides the librados interface and the Ceph FS
file system, and it stores block device images as objects.".
Does it mean literally that a RBD image is implemented as an
there are strong advocates for each
of the others I listed initially.
Caveat emptor.
Ian
On Sunday, September 18, 2016, xxhdx1985126 <xxhdx1985...@163.com> wrote:
Hi, everyone.
I'm newbie for Ceph. According to Sage A. Weil's paper, Ceph was using EBOFS as
the file system for its O
Hi, everyone.
I'm newbie for Ceph. According to Sage A. Weil's paper, Ceph was using EBOFS as
the file system for its OSDs. However, I looked into the source code of Ceph
and could hardly find any code of EBOFS. Is Ceph still using EBOFS or has opted
to use other types of file system for a
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