Hello Reddy
virsh secrect-list is showing but pool-list can't shows and it seems stuck.
[image: image.png]

Regards
Mosharaf Hossain
Manager, Product Development
IT Division

Bangladesh Export Import Company Ltd.

Level-8, SAM Tower, Plot #4, Road #22, Gulshan-1, Dhaka-1212,Bangladesh

Tel: +880 9609 000 999, +880 2 5881 5559, Ext: 14191, Fax: +880 2 9895757

Cell: +8801787680828, Email: mosharaf.hoss...@bol-online.com, Web:
www.bol-online.com
<https://www.google.com/url?q=http://www.bol-online.com&sa=D&source=hangouts&ust=1557908951423000&usg=AFQjCNGMxIuHSHsD3qO6y5JddpEZ0S592A>



On Tue, Sep 19, 2023 at 9:05 PM Jayanth Reddy <jayanthreddy5...@gmail.com>
wrote:

> Hello Mosharaf,
>
> I also see that you've created a thread on the Ceph-users mailing list
> regarding this. Did you get a chance to disable the Read Balancer as one of
> the devs suggested?
>
> At Cloudstack end, in order to see if libvirt has issue communicating with
> Ceph, please try executing the below continuously on your hosts
>
> # virsh pool-list
>
> Please let me know if it freezes or doesn't return any response sometimes.
> AFAIK, there shouldn't be any compatibility issues as one of my Cloudstack
> deployments (v4.18.0.0) is running with Reef 18.2.0. Guess it has something
> to do with the Read balancer alone. Please also share your hosts'
> information, I'll see if I can reproduce.
>
> Thanks,
> Jayanth
>
> ------------------------------
> *From:* Simon Weller <siwelle...@gmail.com>
> *Sent:* Tuesday, September 19, 2023 8:25:17 PM
> *To:* users@cloudstack.apache.org <users@cloudstack.apache.org>
> *Cc:* Andrija Panic <andrija.pa...@gmail.com>; Product Development |
> BEXIMCO IT <p...@bol-online.com>
> *Subject:* Re: CloudStack agent can't connect to upgraded CEPH Cluster
>
> Mosharaf,
>
> Did you upgrade the Ceph client on your hosts as well?
>
> What does "ceph -s" report? Is your cluster healthy?
>
> Do you have any logs that indicate OSDs are disconnecting?
>
> I'm not very familiar with the new read balancer feature in Reef. Can you
> disable it and see if your performance improves?
>
> -Si
>
>
>
>
>
>
>
>
>
>
>
> On Tue, Sep 19, 2023 at 1:25 AM Mosharaf Hossain <
> mosharaf.hoss...@bol-online.com> wrote:
>
> > Hello Andrija
> >
> >  Presently, CloudStack's host lists exhibited stability prior to the
> > disaster, but their statuses are currently fluctuating continuously. Some
> > hosts are initially marked as disconnected, but after a period, they
> > transition to a connected state."
> >
> >
> >
> >
> > [image: image.png]
> >
> > *Using virsh we are getting VM status on cshost1 as below*
> > root@cshost1:~# virsh list
> >  Id    Name           State
> > -------------------------------
> >  10    i-14-597-VM    running
> >  61    r-757-VM       running
> >  69    i-24-767-VM    running
> >  76    r-71-VM        running
> >  82    i-24-797-VM    running
> >  113   r-335-VM       running
> >  128   r-577-VM       running
> >  148   i-14-1151-VM   running
> >  164   i-2-1253-VM    running
> >
> >
> > Regards
> > Mosharaf Hossain
> > Manager, Product Development
> > IT Division
> >
> > Bangladesh Export Import Company Ltd.
> >
> > Level-8, SAM Tower, Plot #4, Road #22, Gulshan-1, Dhaka-1212,Bangladesh
> >
> > Tel: +880 9609 000 999, +880 2 5881 5559, Ext: 14191, Fax: +880 2 9895757
> >
> > Cell: +8801787680828, Email: mosharaf.hoss...@bol-online.com, Web:
> > www.bol-online.com
> >
> > <
> https://www.google.com/url?q=http://www.bol-online.com&sa=D&source=hangouts&ust=1557908951423000&usg=AFQjCNGMxIuHSHsD3qO6y5JddpEZ0S592A
> >
> >
> >
> >
> > On Mon, Sep 18, 2023 at 12:43 PM Andrija Panic <andrija.pa...@gmail.com>
> > wrote:
> >
> >> Hi,
> >>
> >> the message " Agent-Handler-1:null) (logid:) Connection with libvirtd is
> >> broken: invalid connection pointer in virConnectGetVersion " - is a
> false
> >> alarm and does NOT means any errors actually.
> >>
> >> I can see that ACS agent sees different storage pools - namely
> >> "daab90ad-42d3-3c48-a9e4-b4c3c7fcdc84" and
> >> "a2d455c6-68cb-303f-a7fa-287e62a5be9c" - and I don't see any explicit
> error
> >> message about these 2 pools (both RBD/Ceph) pools.
> >>
> >> Also I can see that the cloudstack agent says it's connected to the mgmt
> >> host - which means that all pools are in place (otherwise the agent
> would
> >> not connect)
> >>
> >> 1. Are you KVM hosts all green when checking in CloudStack UI
> >> (Connected/Up)?
> >> 2. You can always use virsh to list pools and see if they are there
> >>
> >> Best,
> >>
> >> On Wed, 13 Sept 2023 at 13:54, Mosharaf Hossain <
> >> mosharaf.hoss...@bol-online.com> wrote:
> >>
> >>> Hello Folks
> >>> We've recently performed an upgrade on our Cephadm cluster,
> transitioning
> >>> from Ceph Quiency to Reef. However, following the manual implementation
> >>> of
> >>> a read balancer in the Reef cluster, we've experienced a significant
> >>> slowdown in client I/O operations within the Ceph cluster, affecting
> both
> >>> client bandwidth and overall cluster performance.
> >>>
> >>> This slowdown has resulted in unresponsiveness across all virtual
> >>> machines
> >>> within the cluster, despite the fact that the cluster exclusively
> >>> utilizes
> >>> SSD storage."
> >>>
> >>> In the CloudStack agent, we are getting libvirrt can't connect to CEPH
> >>> pool
> >>> and generating an error message.
> >>>
> >>> 2023-09-13 16:57:51,660 INFO  [cloud.agent.Agent]
> (Agent-Handler-4:null)
> >>> (logid:) Lost connection to host: 10.10.11.61. Attempting reconnection
> >>> while we still have 1 command in progress.
> >>> 2023-09-13 16:57:51,661 INFO  [utils.nio.NioClient]
> >>> (Agent-Handler-4:null)
> >>> (logid:) NioClient connection closed
> >>> 2023-09-13 16:57:51,662 INFO  [cloud.agent.Agent]
> (Agent-Handler-4:null)
> >>> (logid:) Reconnecting to host:10.10.11.62
> >>> 2023-09-13 16:57:51,662 INFO  [utils.nio.NioClient]
> >>> (Agent-Handler-4:null)
> >>> (logid:) Connecting to 10.10.11.62:8250
> >>> 2023-09-13 16:57:51,663 INFO  [utils.nio.Link] (Agent-Handler-4:null)
> >>> (logid:) Conf file found: /etc/cloudstack/agent/agent.properties
> >>> 2023-09-13 16:57:51,779 INFO  [utils.nio.NioClient]
> >>> (Agent-Handler-4:null)
> >>> (logid:) SSL: Handshake done
> >>> 2023-09-13 16:57:51,779 INFO  [utils.nio.NioClient]
> >>> (Agent-Handler-4:null)
> >>> (logid:) Connected to 10.10.11.62:8250
> >>> 2023-09-13 16:57:51,815 INFO  [utils.linux.KVMHostInfo]
> >>> (Agent-Handler-1:null) (logid:) Fetching CPU speed from command
> "lscpu".
> >>> 2023-09-13 16:57:51,836 INFO  [utils.linux.KVMHostInfo]
> >>> (Agent-Handler-1:null) (logid:) Command [lscpu | grep -i 'Model name' |
> >>> head -n 1 | egrep -o '[[:digit:]].[[:digit:]]+GHz' | sed 's/GHz//g']
> >>> resulted in the value [2100] for CPU speed.
> >>> 2023-09-13 16:57:51,900 INFO  [kvm.storage.LibvirtStorageAdaptor]
> >>> (Agent-Handler-1:null) (logid:) Attempting to create storage pool
> >>> e205cf5f-ea32-46c7-ba18-d18f62772b80 (Filesystem) in libvirt
> >>> 2023-09-13 16:57:51,901 ERROR [kvm.resource.LibvirtConnection]
> >>> (Agent-Handler-1:null) (logid:) Connection with libvirtd is broken:
> >>> invalid
> >>> connection pointer in virConnectGetVersion
> >>> 2023-09-13 16:57:51,903 INFO  [kvm.storage.LibvirtStorageAdaptor]
> >>> (Agent-Handler-1:null) (logid:) Found existing defined storage pool
> >>> e205cf5f-ea32-46c7-ba18-d18f62772b80, using it.
> >>> 2023-09-13 16:57:51,904 INFO  [kvm.storage.LibvirtStorageAdaptor]
> >>> (Agent-Handler-1:null) (logid:) Trying to fetch storage pool
> >>> e205cf5f-ea32-46c7-ba18-d18f62772b80 from libvirt
> >>> 2023-09-13 16:57:51,924 INFO  [cloud.agent.Agent]
> (Agent-Handler-2:null)
> >>> (logid:) Process agent startup answer, agent id = 0
> >>> 2023-09-13 16:57:51,924 INFO  [cloud.agent.Agent]
> (Agent-Handler-2:null)
> >>> (logid:) Set agent id 0
> >>> 2023-09-13 16:57:51,955 INFO  [cloud.agent.Agent]
> (Agent-Handler-2:null)
> >>> (logid:) Startup Response Received: agent id = 0
> >>> 2023-09-13 16:57:52,047 INFO  [kvm.storage.LibvirtStorageAdaptor]
> >>> (agentRequest-Handler-5:null) (logid:e396a97c) Attempting to create
> >>> storage
> >>> pool daab90ad-42d3-3c48-a9e4-b4c3c7fcdc84 (RBD) in libvirt
> >>> 2023-09-13 16:57:52,050 INFO  [kvm.storage.LibvirtStorageAdaptor]
> >>> (agentRequest-Handler-5:null) (logid:e396a97c) Found existing defined
> >>> storage pool daab90ad-42d3-3c48-a9e4-b4c3c7fcdc84, using it.
> >>> 2023-09-13 16:57:52,050 INFO  [kvm.storage.LibvirtStorageAdaptor]
> >>> (agentRequest-Handler-5:null) (logid:e396a97c) Trying to fetch storage
> >>> pool
> >>> daab90ad-42d3-3c48-a9e4-b4c3c7fcdc84 from libvirt
> >>> 2023-09-13 16:57:52,161 INFO  [kvm.storage.LibvirtStorageAdaptor]
> >>> (agentRequest-Handler-1:null) (logid:e396a97c) Attempting to create
> >>> storage
> >>> pool a2d455c6-68cb-303f-a7fa-287e62a5be9c (RBD) in libvirt
> >>> 2023-09-13 16:57:52,163 WARN  [kvm.storage.LibvirtStorageAdaptor]
> >>> (agentRequest-Handler-1:null) (logid:e396a97c) Storage pool
> >>> a2d455c6-68cb-303f-a7fa-287e62a5be9c was not found running in libvirt.
> >>> Need
> >>> to create it.
> >>> 2023-09-13 16:57:52,164 INFO  [kvm.storage.LibvirtStorageAdaptor]
> >>> (agentRequest-Handler-1:null) (logid:e396a97c) Didn't find an existing
> >>> storage pool a2d455c6-68cb-303f-a7fa-287e62a5be9c by UUID, checking for
> >>> pools with duplicate paths
> >>> 2023-09-13 16:57:56,780 INFO  [cloud.agent.Agent]
> (Agent-Handler-4:null)
> >>> (logid:) Connected to the host: 10.10.11.62
> >>> ^C
> >>>
> >>>
> >>> Kindly guide us to move forward.
> >>>
> >>>
> >>>
> >>> Regards
> >>> Mosharaf Hossain
> >>> Manager, Product Development
> >>> IT Division
> >>>
> >>> Bangladesh Export Import Company Ltd.
> >>>
> >>> Level-8, SAM Tower, Plot #4, Road #22, Gulshan-1, Dhaka-1212,Bangladesh
> >>>
> >>> Tel: +880 9609 000 999, +880 2 5881 5559, Ext: 14191, Fax: +880 2
> 9895757
> >>>
> >>> Cell: +8801787680828, Email: mosharaf.hoss...@bol-online.com, Web:
> >>> www.bol-online.com
> >>> <
> >>>
> https://www.google.com/url?q=http://www.bol-online.com&sa=D&source=hangouts&ust=1557908951423000&usg=AFQjCNGMxIuHSHsD3qO6y5JddpEZ0S592A
> >>> >
> >>>
> >>
> >>
> >> --
> >>
> >> Andrija Panić
> >>
> >
>

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