Re: How to detect degraded objects

[Sahana Lokeshappa <Sahana.Lokeshappa@xxxxxxxxxxx>]

HI tuan,

 

As per my knowledge, there is no cli as such. By indirect way, when you do pg dump, you will get  primary osd assigned for every pg.(check primary header) Parse through the directory /var/lib/ceph/osd/ceph-<osd_num>/current/<pg_id>_head

 

Here are all objects resided in that pg.

 

Thanks

Sahana Lokeshappa
Test Development Engineer I
SanDisk Corporation
3rd Floor, Bagmane Laurel, Bagmane Tech Park

C V Raman nagar, Bangalore 560093
T: +918042422283

Sahana.Lokeshappa@xxxxxxxxxxx

 

From: Ta Ba Tuan [mailto:tuantb@xxxxxxxxxx]
Sent: Friday, November 07, 2014 5:18 PM
To: Sahana Lokeshappa; ceph-users@xxxxxxxxxxxxxx
Subject: Re: How to detect degraded objects

 

Hi Sahana,

Thank for your replying. But, how to list objects of pgs ? :D

Thanks!
Tuan
--
HaNoi-VietNam

On 11/07/2014 04:22 PM, Sahana Lokeshappa wrote:

Hi Tuan,

 

14918 active+clean

                   1 active+clean+scrubbing+deep

                  52 active+recovery_wait+degraded

                   2 active+recovering+degraded

 

This says that 2 +52 pgs are degraded. You can run command:

 

ceph pg dump | grep degraded. You will get list of pgs which are  in degraded state. The objects included in that pg are in degraded state

 

Thanks

Sahana Lokeshappa

 

From: ceph-users [mailto:ceph-users-bounces@xxxxxxxxxxxxxx] On Behalf Of Ta Ba Tuan
Sent: Friday, November 07, 2014 2:49 PM
To: ceph-users@xxxxxxxxxxxxxx
Subject: How to detect degraded objects

 

Hi everyone,

  111/57706299 objects degraded (0.001%)                         

   &

 n

bsp;                                                                  

        14918 active+clean

                   1 active+clean+scrubbing+deep

                  52 active+recovery_wait+degraded

                   2 active+recovering+degraded

Ceph'state : 111 /57706299 objects degraded.
Some missing object(s) to have CEPH crash one osd daemon.

How to list degraded objects? Guide me, please. Thanks!

 -2196> 2014-11-07 16:04:23.063584 7fe1aed83700 10 osd.21 pg_epoch: 107789 pg[6.9f0( v 107789'7058293 lc 107786'7058229 (107617'7055096,107789'7058293] local-les=107788 n=4506 ec=164 les/c 107788/107785 107787/107787/105273) [101,21,78] r=1 lpr=107787 pi=106418-107786/36 luod=0'0 crt=107786'7058241 lcod 107786'7058222 active m=1] got missing 1f7c69f0/rbd_data.885435b2bbeeb.00000000000059c2/head//6 v 107786'7058230

     0> 2014-11-07 16:14:57.024605 7f8602e3d700 -1 *** Caught signal (Aborted) **
 in thread 7f8602e3d700

 ceph version 0.87-6-gdba7def (dba7defc623474ad17263c9fccfec60fe7a439f0)
 1: /usr/bin/ceph-osd() [0x9b6725]
 2: (()+0xfcb0) [0x7f8626439cb0]
 3: (gsignal()+0x35) [0x7f8624d3e0d5]
 4: (abort()+0x17b) [0x7f8624d4183b]
 5: (__gnu_cxx::__verbose_terminate_handler()+0x11d) [0x7f862569069d]
 6: (()+0xb5846) [0x7f862568e846]
 7: (()+0xb5873) [0x7f862568e873]
 8: (()+0xb596e) [0x7f862568e96e]
 9: (ceph::__ceph_assert_fail(char const*, char const*, int, char const*)+0x259) [0xaa0089]
 10: (ReplicatedPG::trim_object(hobject_t const&)+0x222d) [0x8139ed]
 11: (ReplicatedPG::TrimmingObjects::react(ReplicatedPG::SnapTrim const&)+0x43e) [0x82b9be]
 12: (boost::statechart::simple_state<ReplicatedPG::TrimmingObjects, ReplicatedPG::SnapTrimmer, boost::mpl::list<mpl_::na, mpl_::na, mpl_::na, mp
l_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::n
a, mpl_::na, mpl_::na>, (boost::statechart::history_mode)0>::react_impl(boost::statechart::event_base const&, void const*)+0xc0) [0x870ce0]
 13: (boost::statechart::state_machine<ReplicatedPG::SnapTrimmer, ReplicatedPG::NotTrimming, std::allocator<void>, boost::statechart::null_except
ion_translator>::process_queued_events()+0xfb) [0x85618b]
 14: (boost::statechart::state_machine<ReplicatedPG::SnapTrimmer, ReplicatedPG::NotTrimming, std::allocator<void>, boost::statechart::null_except
ion_translator>::process_event(boost::statechart::event_base const&)+0x1e) [0x85633e]
 15: (ReplicatedPG::snap_trimmer()+0x4f8) [0x7d5ef8]
 16: (OSD::SnapTrimWQ::_process(PG*)+0x14) [0x673ab4]
 17: (ThreadPool::worker(ThreadPool::WorkThread*)+0x48e) [0xa8fade]
 18: (ThreadPool::WorkThread::entry()+0x10) [0xa92870]
 19: (()+0x7e9a) [0x7f8626431e9a]
 20: (clone()+0x6d) [0x7f8624dfc31d]
 NOTE: a copy of the executable, or `objdump -rdS <executable>` is needed to interpret this.

--
Tuan
HaNoi-VietNam

 

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