Wido, it's the main issue. No records at all...
So, from last time:
2015-11-02 11:40:33,204 DEBUG [kvm.resource.LibvirtComputingResource]
(agentRequest-Handler-2:null) Executing: /bin/bash -c free|grep Mem:|awk
'{print $2}'
2015-11-02 11:40:33,207 DEBUG [kvm.resource.LibvirtComputingResource]
(agentRequest-Handler-2:null) Execution is successful.
2015-11-02 11:40:35,316 DEBUG [cloud.agent.Agent]
(agentRequest-Handler-4:null) Processing command:
com.cloud.agent.api.GetVmStatsCommand
2015-11-02 11:40:35,867 INFO [cloud.agent.AgentShell] (main:null) Agent
started
2015-11-02 11:40:35,868 INFO [cloud.agent.AgentShell] (main:null)
Implementation Version is 4.5.1
So, almost alsways it's exception after RbdUnprotect then in approx . 20
minutes - crash..
Almost all the time - it's happen after GetVmStatsCommand or Disks stats...
Possible that evil hiden into UpadteDiskInfo method... but i can;t find any
bad code there (((
2015-11-03 10:40 GMT+02:00 Wido den Hollander <[email protected]>:
>
>
> On 03-11-15 01:54, Voloshanenko Igor wrote:
> > Thank you, Jason!
> >
> > Any advice, for troubleshooting....
> >
> > I'm looking in code, and right now don;t see any bad things :(
> >
>
> Can you run the CloudStack Agent in DEBUG mode and then see after which
> lines in the logs it crashes?
>
> Wido
>
> > 2015-11-03 1:32 GMT+02:00 Jason Dillaman <[email protected]
> > <mailto:[email protected]>>:
> >
> > Most likely not going to be related to 13045 since you aren't
> > actively exporting an image diff. The most likely problem is that
> > the RADOS IO context is being closed prior to closing the RBD image.
> >
> > --
> >
> > Jason Dillaman
> >
> >
> > ----- Original Message -----
> >
> > > From: "Voloshanenko Igor" <[email protected]
> > <mailto:[email protected]>>
> > > To: "Ceph Users" <[email protected]
> > <mailto:[email protected]>>
> > > Sent: Thursday, October 29, 2015 5:27:17 PM
> > > Subject: Re: [ceph-users] Cloudstack agent crashed JVM with
> > exception in
> > > librbd
> >
> > > From all we analyzed - look like - it's this issue
> > > http://tracker.ceph.com/issues/13045
> >
> > > PR: https://github.com/ceph/ceph/pull/6097
> >
> > > Can anyone help us to confirm this? :)
> >
> > > 2015-10-29 23:13 GMT+02:00 Voloshanenko Igor <
> > [email protected] <mailto:[email protected]> >
> > > :
> >
> > > > Additional trace:
> > >
> >
> > > > #0 0x00007f30f9891cc9 in __GI_raise (sig=sig@entry=6) at
> > > > ../nptl/sysdeps/unix/sysv/linux/raise.c:56
> > >
> > > > #1 0x00007f30f98950d8 in __GI_abort () at abort.c:89
> > >
> > > > #2 0x00007f30f87b36b5 in
> > __gnu_cxx::__verbose_terminate_handler() () from
> > > > /usr/lib/x86_64-linux-gnu/libstdc++.so.6
> > >
> > > > #3 0x00007f30f87b1836 in ?? () from
> > > > /usr/lib/x86_64-linux-gnu/libstdc++.so.6
> > >
> > > > #4 0x00007f30f87b1863 in std::terminate() () from
> > > > /usr/lib/x86_64-linux-gnu/libstdc++.so.6
> > >
> > > > #5 0x00007f30f87b1aa2 in __cxa_throw () from
> > > > /usr/lib/x86_64-linux-gnu/libstdc++.so.6
> > >
> > > > #6 0x00007f2fddb50778 in ceph::__ceph_assert_fail
> > > > (assertion=assertion@entry=0x7f2fdddeca05 "sub <
> m_subsys.size()",
> > >
> > > > file=file@entry=0x7f2fdddec9f0 "./log/SubsystemMap.h",
> > line=line@entry=62,
> > >
> > > > func=func@entry=0x7f2fdddedba0
> > > >
> >
> <_ZZN4ceph3log12SubsystemMap13should_gatherEjiE19__PRETTY_FUNCTION__> "bool
> > > > ceph::log::SubsystemMap::should_gather(unsigned int, int)") at
> > > > common/assert.cc:77
> > >
> > > > #7 0x00007f2fdda1fed2 in ceph::log::SubsystemMap::should_gather
> > > > (level=<optimized out>, sub=<optimized out>, this=<optimized
> out>)
> > >
> > > > at ./log/SubsystemMap.h:62
> > >
> > > > #8 0x00007f2fdda3b693 in ceph::log::SubsystemMap::should_gather
> > > > (this=<optimized out>, sub=<optimized out>, level=<optimized
> out>)
> > >
> > > > at ./log/SubsystemMap.h:61
> > >
> > > > #9 0x00007f2fddd879be in ObjectCacher::flusher_entry
> > (this=0x7f2ff80b27a0)
> > > > at
> > > > osdc/ObjectCacher.cc:1527
> > >
> > > > #10 0x00007f2fddd9851d in ObjectCacher::FlusherThread::entry
> > > > (this=<optimized
> > > > out>) at osdc/ObjectCacher.h:374
> > >
> > > > #11 0x00007f30f9c28182 in start_thread (arg=0x7f2e1a7fc700) at
> > > > pthread_create.c:312
> > >
> > > > #12 0x00007f30f995547d in clone () at
> > > > ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
> > >
> >
> > > > 2015-10-29 17:38 GMT+02:00 Voloshanenko Igor <
> > [email protected] <mailto:[email protected]>
> > > > >
> > > > :
> > >
> >
> > > > > Hi Wido and all community.
> > > >
> > >
> >
> > > > > We catched very idiotic issue on our Cloudstack installation,
> > which
> > > > > related
> > > > > to ceph and possible to java-rados lib.
> > > >
> > >
> >
> > > > > So, we have constantly agent crashed (which cause very big
> > problem for
> > > > > us...
> > > > > ).
> > > >
> > >
> >
> > > > > When agent crashed - it's crash JVM. And no event in logs at
> all.
> > > >
> > >
> > > > > We enabled crush dump, and after crash we see next picture:
> > > >
> > >
> >
> > > > > #grep -A1 "Problematic frame" < /hs_err_pid30260.log
> > > >
> > >
> > > > > Problematic frame:
> > > >
> > >
> > > > > C [librbd.so.1.0.0+0x5d681]
> > > >
> > >
> >
> > > > > # gdb /usr/lib/librbd.so.1.0.0 /var/tmp/cores/jsvc.25526.0.core
> > > >
> > >
> > > > > (gdb) bt
> > > >
> > >
> > > > > ...
> > > >
> > >
> > > > > #7 0x00007f30b9a1fed2 in ceph::log::SubsystemMap::should_gather
> > > > > (level=<optimized out>, sub=<optimized out>, this=<optimized
> out>)
> > > >
> > >
> > > > > at ./log/SubsystemMap.h:62
> > > >
> > >
> > > > > #8 0x00007f30b9a3b693 in ceph::log::SubsystemMap::should_gather
> > > > > (this=<optimized out>, sub=<optimized out>, level=<optimized
> out>)
> > > >
> > >
> > > > > at ./log/SubsystemMap.h:61
> > > >
> > >
> > > > > #9 0x00007f30b9d879be in ObjectCacher::flusher_entry
> > > > > (this=0x7f2fb4017910)
> > > > > at
> > > > > osdc/ObjectCacher.cc:1527
> > > >
> > >
> > > > > #10 0x00007f30b9d9851d in ObjectCacher::FlusherThread::entry
> > > > > (this=<optimized
> > > > > out>) at osdc/ObjectCacher.h:374
> > > >
> > >
> >
> > > > > From ceph code, this part executed when flushing cache
> > object... And we
> > > > > don;t
> > > > > understand why. Becasue we have absolutely different race
> > condition to
> > > > > reproduce it.
> > > >
> > >
> >
> > > > > As cloudstack have not good implementation yet of snapshot
> > lifecycle,
> > > > > sometime, it's happen, that some volumes already marked as
> > EXPUNGED in DB
> > > > > and then cloudstack try to delete bas Volume, before it's try
> to
> > > > > unprotect
> > > > > it.
> > > >
> > >
> >
> > > > > Sure, unprotecting fail, normal exception returned back (fail
> > because
> > > > > snap
> > > > > has childs... )
> > > >
> > >
> >
> > > > > 2015-10-29 09:02:19,401 DEBUG [kvm.resource.KVMHAMonitor]
> > > > > (Thread-1304:null)
> > > > > Executing:
> > > > >
> >
> /usr/share/cloudstack-common/scripts/vm/hypervisor/kvm/kvmheartbeat.sh
> > -i
> > > > > 10.44.253.13 -p /var/lib/libvirt/PRIMARY -m
> > > > > /mnt/93655746-a9ef-394d-95e9-6e62471dd39f -h 10.44.253.11
> > > >
> > >
> > > > > 2015-10-29 09:02:19,412 DEBUG [kvm.resource.KVMHAMonitor]
> > > > > (Thread-1304:null)
> > > > > Execution is successful.
> > > >
> > >
> > > > > 2015-10-29 09:02:19,554 INFO
> [kvm.storage.LibvirtStorageAdaptor]
> > > > > (agentRequest-Handler-5:null) Unprotecting and Removing RBD
> > snapshots of
> > > > > image 6789/71b1e2e9-1985-45ca-9ab6-9e5016b86b7c prior to
> > removing the
> > > > > image
> > > >
> > >
> > > > > 2015-10-29 09:02:19,571 DEBUG
> [kvm.storage.LibvirtStorageAdaptor]
> > > > > (agentRequest-Handler-5:null) Succesfully connected to Ceph
> > cluster at
> > > > > cephmon.anolim.net:6789 <http://cephmon.anolim.net:6789>
> > > >
> > >
> > > > > 2015-10-29 09:02:19,608 DEBUG
> [kvm.storage.LibvirtStorageAdaptor]
> > > > > (agentRequest-Handler-5:null) Unprotecting snapshot
> > > > >
> > cloudstack/71b1e2e9-1985-45ca-9ab6-9e5016b86b7c@cloudstack-base-snap
> > > >
> > >
> > > > > 2015-10-29 09:02:19,627 DEBUG [kvm.storage.KVMStorageProcessor]
> > > > > (agentRequest-Handler-5:null) Failed to delete volume:
> > > > > com.cloud.utils.exception.CloudRuntimeException:
> > > > > com.ceph.rbd.RbdException:
> > > > > Failed to unprotect snapshot cloudstack-base-snap
> > > >
> > >
> > > > > 2015-10-29 09:02:19,628 DEBUG [cloud.agent.Agent]
> > > > > (agentRequest-Handler-5:null) Seq 4-1921583831: { Ans: ,
> MgmtId:
> > > > > 161344838950, via: 4, Ver: v1, Flags: 10,
> > > > >
> >
>
> [{"com.cloud.agent.api.Answer":{"result":false,"details":"com.cloud.utils.exception.CloudRuntimeException:
> > > > > com.ceph.rbd.RbdException: Failed to unprotect snapshot
> > > > > cloudstack-base-snap","wait":0}}] }
> > > >
> > >
> > > > > 2015-10-29 09:02:25,722 DEBUG [cloud.agent.Agent]
> > > > > (agentRequest-Handler-2:null) Processing command:
> > > > > com.cloud.agent.api.GetHostStatsCommand
> > > >
> > >
> > > > > 2015-10-29 09:02:25,722 DEBUG
> > [kvm.resource.LibvirtComputingResource]
> > > > > (agentRequest-Handler-2:null) Executing: /bin/bash -c
> > idle=$(top -b -n 1|
> > > > > awk -F, '/^[%]*[Cc]pu/{$0=$4; gsub(/[^0-9.,]+/,""); print }');
> > echo $idle
> > > >
> > >
> > > > > 2015-10-29 09:02:26,249 DEBUG
> > [kvm.resource.LibvirtComputingResource]
> > > > > (agentRequest-Handler-2:null) Execution is successful.
> > > >
> > >
> > > > > 2015-10-29 09:02:26,250 DEBUG
> > [kvm.resource.LibvirtComputingResource]
> > > > > (agentRequest-Handler-2:null) Executing: /bin/bash -c
> > freeMem=$(free|grep
> > > > > cache:|awk '{print $4}');echo $freeMem
> > > >
> > >
> > > > > 2015-10-29 09:02:26,254 DEBUG
> > [kvm.resource.LibvirtComputingResource]
> > > > > (agentRequest-Handler-2:null) Execution is successful.
> > > >
> > >
> >
> > > > > BUT, after 20 minutes - agent crashed... If we remove all
> > childs and
> > > > > create
> > > > > conditions for cloudstack to delete volume - all OK - no agent
> > crash in
> > > > > 20
> > > > > minutes...
> > > >
> > >
> >
> > > > > We can't connect this action - Volume delete with agent
> > crashe... Also we
> > > > > don't understand why +- 20 minutes need to last, and only then
> > agent
> > > > > crashed...
> > > >
> > >
> >
> > > > > From logs, before crash - only GetVMStats... And then - agent
> > started...
> > > >
> > >
> >
> > > > > 2015-10-29 09:21:55,143 DEBUG [cloud.agent.Agent]
> > (UgentTask-5:null)
> > > > > Sending
> > > > > ping: Seq 4-1343: { Cmd , MgmtId: -1, via: 4, Ver: v1, Flags:
> 11,
> > > > >
> >
>
> [{"com.cloud.agent.api.PingRoutingCommand":{"newStates":{},"_hostVmStateReport":{"i-881-1117-VM":{"state":"PowerOn","host":"
> > > > > cs2.anolim.net <http://cs2.anolim.net>
> > "},"i-7-106-VM":{"state":"PowerOn","host":" cs2.anolim.net
> > <http://cs2.anolim.net>
> > > > > "},"i-1683-1984-VM":{"state":"PowerOn","host":" cs2.anolim.net
> > <http://cs2.anolim.net>
> > > > > "},"i-11-504-VM":{"state":"PowerOn","host":" cs2.anolim.net
> > <http://cs2.anolim.net>
> > > > > "},"i-325-616-VM":{"state":"PowerOn","host":" cs2.anolim.net
> > <http://cs2.anolim.net>
> > > > > "},"i-10-52-VM":{"state":"PowerOn","host":" cs2.anolim.net
> > <http://cs2.anolim.net>
> > > > > "},"i-941-1237-VM":{"state":"PowerOn","host":" cs2.anolim.net
> > <http://cs2.anolim.net>
> > > > >
> >
>
> "}},"_gatewayAccessible":true,"_vnetAccessible":true,"hostType":"Routing","hostId":4,"wait":0}}]
> > > > > }
> > > >
> > >
> > > > > 2015-10-29 09:21:55,149 DEBUG [cloud.agent.Agent]
> > (Agent-Handler-3:null)
> > > > > Received response: Seq 4-1343: { Ans: , MgmtId: 161344838950,
> > via: 4,
> > > > > Ver:
> > > > > v1, Flags: 100010,
> > > > >
> >
>
> [{"com.cloud.agent.api.PingAnswer":{"_command":{"hostType":"Routing","hostId":4,"wait":0},"result":true,"wait":0}}]
> > > > > }
> > > >
> > >
> > > > > 2015-10-29 09:22:20,755 DEBUG [cloud.agent.Agent]
> > > > > (agentRequest-Handler-5:null) Processing command:
> > > > > com.cloud.agent.api.GetVmStatsCommand
> > > >
> > >
> > > > > 2015-10-29 09:23:02,630 INFO [cloud.agent.AgentShell]
> > (main:null) Agent
> > > > > started
> > > >
> > >
> > > > > 2015-10-29 09:23:02,632 INFO [cloud.agent.AgentShell]
> (main:null)
> > > > > Implementation Version is 4.3.2
> > > >
> > >
> >
> > > > > Can you please give us direction to go deeper... As we dont
> > udnerstand
> > > > > what
> > > > > happened...
> > > >
> > >
> >
> > > > > Issue reproducing very easy:
> > > >
> > >
> >
> > > > > (to speed up delete process we set storage.cleanup.interval=10)
> > > >
> > >
> >
> > > > > 1. Create Volume
> > > >
> > >
> > > > > 2. Attach it to VM
> > > >
> > >
> > > > > 3. Create snapshot from this volume by hand on ceph
> > > >
> > >
> > > > > 4. Do snap_protect by hand on ceph for snap from previous step
> > > >
> > >
> > > > > 5. Create child via snap clone
> > > >
> > >
> > > > > 6. Deattach volume from VM and delete it
> > > >
> > >
> >
> > > > > Our problem - that this happen not in such lab situation, but
> > in real
> > > > > life...
> > > >
> > >
> >
> > > _______________________________________________
> > > ceph-users mailing list
> > > [email protected] <mailto:[email protected]>
> > > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
> >
> >
> >
> >
> > _______________________________________________
> > ceph-users mailing list
> > [email protected]
> > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
> >
> _______________________________________________
> ceph-users mailing list
> [email protected]
> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
>
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