[ovirt-users] Sharing iSCSI data stroage domain across multiple clusters in the same datacenter

Wednesday, 30 July 2014

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Hi,
*
**Can we share the iSCSI data storage domain across multiple clusters in 
the same datacenter?*

Following are the setup details which I tried.

    -    One datacenter, Say DC1
    -    in DC1, two clusters, say CL1 and CL2
    -    In CL1, one host, say H1. And in CL2 one host, say H2
    -    iSCSI Data Storage domain is configured where external storage
    LUNs are exported to host H1(A host in CL1 of Datacenter).

While adding H1 to CL1 is succeeded; addition of H2 in CL2 is failing 
with following error in vdsm.log.

    Traceback (most recent call last):
       File "/usr/share/vdsm/storage/task.py", line 873, in _run
         return fn(*args, **kargs)
       File "/usr/share/vdsm/logUtils.py", line 45, in wrapper
         res = f(*args, **kwargs)
       File "/usr/share/vdsm/storage/hsm.py", line 1020, in
    connectStoragePool
         spUUID, hostID, msdUUID, masterVersion, domainsMap)
       File "/usr/share/vdsm/storage/hsm.py", line 1091, in
    _connectStoragePool
         res = pool.connect(hostID, msdUUID, masterVersion)
       File "/usr/share/vdsm/storage/sp.py", line 630, in connect
         self.__rebuild(msdUUID=msdUUID, masterVersion=masterVersion)
       File "/usr/share/vdsm/storage/sp.py", line 1153, in __rebuild
         self.setMasterDomain(msdUUID, masterVersion)
       File "/usr/share/vdsm/storage/sp.py", line 1360, in setMasterDomain
         raise se.StoragePoolMasterNotFound(self.spUUID, msdUUID)
    StoragePoolMasterNotFound: Cannot find master domain:
    'spUUID=a4dfaf64-adfa-4cfa-88d5-986fbdb2b2b2,
    msdUUID=741f7913-09ad-4d96-a225-3bda6d06e042'
    Thread-13::DEBUG::2014-07-30
    15:24:49,780::task::885::TaskManager.Task::(_run)
    Task=`07997682-8d6b-42fd-acb3-1360f14860d6`::Task._run:
    07997682-8d6b-42fd-acb3-1360f14860d6
    ('a4dfaf64-adfa-4cfa-88d5-986fbdb2b2b2', 2,
    '741f7913-09ad-4d96-a225-3bda6d06e042', 1, None) {} failed -
    stopping task
    Thread-13::DEBUG::2014-07-30
    15:24:49,780::task::1211::TaskManager.Task::(stop)
    Task=`07997682-8d6b-42fd-acb3-1360f14860d6`::stopping in state
    preparing (force False)
    Thread-13::DEBUG::2014-07-30
    15:24:49,780::task::990::TaskManager.Task::(_decref)
    Task=`07997682-8d6b-42fd-acb3-1360f14860d6`::ref 1 aborting True
    *Thread-13::INFO::2014-07-30
    15:24:49,780::task::1168::TaskManager.Task::(prepare)
    Task=`07997682-8d6b-42fd-acb3-1360f14860d6`::aborting: Task is
    aborted: 'Cannot find master domain' - code 304*
    Thread-13::DEBUG::2014-07-30
    15:24:49,781::task::1173::TaskManager.Task::(prepare)
    Task=`07997682-8d6b-42fd-acb3-1360f14860d6`::Prepare: aborted:
    Cannot find master domain
    Thread-13::DEBUG::2014-07-30
    15:24:49,781::task::990::TaskManager.Task::(_decref)
    Task=`07997682-8d6b-42fd-acb3-1360f14860d6`::ref 0 aborting True
    Thread-13::DEBUG::2014-07-30
    15:24:49,781::task::925::TaskManager.Task::(_doAbort)
    Task=`07997682-8d6b-42fd-acb3-1360f14860d6`::Task._doAbort: force False
    Thread-13::DEBUG::2014-07-30
    15:24:49,781::resourceManager::977::ResourceManager.Owner::(cancelAll)
    Owner.cancelAll requests {}
    Thread-13::DEBUG::2014-07-30
    15:24:49,781::task::595::TaskManager.Task::(_updateState)
    Task=`07997682-8d6b-42fd-acb3-1360f14860d6`::moving from state
    preparing -> state aborting
    Thread-13::DEBUG::2014-07-30
    15:24:49,781::task::550::TaskManager.Task::(__state_aborting)
    Task=`07997682-8d6b-42fd-acb3-1360f14860d6`::_aborting: recover
    policy none
    Thread-13::DEBUG::2014-07-30
    15:24:49,782::task::595::TaskManager.Task::(_updateState)
    Task=`07997682-8d6b-42fd-acb3-1360f14860d6`::moving from state
    aborting -> state failed
    Thread-13::DEBUG::2014-07-30
    15:24:49,782::resourceManager::940::ResourceManager.Owner::(releaseAll)
    Owner.releaseAll requests {} resources {}
    Thread-13::DEBUG::2014-07-30
    15:24:49,782::resourceManager::977::ResourceManager.Owner::(cancelAll)
    Owner.cancelAll requests {}
    Thread-13::ERROR::2014-07-30
    15:24:49,782::dispatcher::65::Storage.Dispatcher.Protect::(run)
    {'status': {'message': "Cannot find master domain:
    'spUUID=a4dfaf64-adfa-4cfa-88d5-986fbdb2b2b2,
    msdUUID=741f7913-09ad-4d96-a225-3bda6d06e042'", 'code': 304}}

_*Please advise if I need to have one Storage Domain per cluster in 
given datacenter.*_

Thanks, Santosh.

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    <meta http-equiv="content-type" content="text/html;
charset=ISO-8859-1">
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  <body bgcolor="#FFFFFF" text="#000000">
    Hi,<br>
    <b><br>
    </b><b>Can we share the iSCSI data storage domain across multiple
      clusters in the same datacenter?</b><br>
    <br>
    Following are the setup details which I tried.<br>
    <blockquote>-&nbsp;&nbsp;&nbsp; One datacenter, Say DC1<br>
      -&nbsp;&nbsp;&nbsp; in DC1, two clusters, say CL1 and CL2<br>
      -&nbsp;&nbsp;&nbsp; In CL1, one host, say H1. And in CL2 one host, say
H2<br>
      -&nbsp;&nbsp;&nbsp; iSCSI Data Storage domain is configured where
external
      storage LUNs are exported to host H1(A host in CL1 of Datacenter).
      <br>
    </blockquote>
    <br>
    While adding H1 to CL1 is succeeded; addition of H2 in CL2 is
    failing with following error in vdsm.log.<br>
    <blockquote><font color="#000099"><tt>Traceback (most
recent call
          last):</tt><tt><br>
        </tt><tt>&nbsp; File "/usr/share/vdsm/storage/task.py",
line 873, in
          _run</tt><tt><br>
        </tt><tt>&nbsp;&nbsp;&nbsp; return fn(*args,
**kargs)</tt><tt><br>
        </tt><tt>&nbsp; File "/usr/share/vdsm/logUtils.py", line
45, in
          wrapper</tt><tt><br>
        </tt><tt>&nbsp;&nbsp;&nbsp; res = f(*args,
**kwargs)</tt><tt><br>
        </tt><tt>&nbsp; File "/usr/share/vdsm/storage/hsm.py",
line 1020, in
          connectStoragePool</tt><tt><br>
        </tt><tt>&nbsp;&nbsp;&nbsp; spUUID, hostID, msdUUID,
masterVersion, domainsMap)</tt><tt><br>
        </tt><tt>&nbsp; File "/usr/share/vdsm/storage/hsm.py",
line 1091, in
          _connectStoragePool</tt><tt><br>
        </tt><tt>&nbsp;&nbsp;&nbsp; res = pool.connect(hostID,
msdUUID, masterVersion)</tt><tt><br>
        </tt><tt>&nbsp; File "/usr/share/vdsm/storage/sp.py",
line 630, in
          connect</tt><tt><br>
        </tt><tt>&nbsp;&nbsp;&nbsp;
self.__rebuild(msdUUID=msdUUID,
          masterVersion=masterVersion)</tt><tt><br>
        </tt><tt>&nbsp; File "/usr/share/vdsm/storage/sp.py",
line 1153, in
          __rebuild</tt><tt><br>
        </tt><tt>&nbsp;&nbsp;&nbsp; self.setMasterDomain(msdUUID,
masterVersion)</tt><tt><br>
        </tt><tt>&nbsp; File "/usr/share/vdsm/storage/sp.py",
line 1360, in
          setMasterDomain</tt><tt><br>
        </tt><tt>&nbsp;&nbsp;&nbsp; raise
se.StoragePoolMasterNotFound(self.spUUID,
          msdUUID)</tt><tt><br>
        </tt><tt>StoragePoolMasterNotFound: Cannot find master domain:
          'spUUID=a4dfaf64-adfa-4cfa-88d5-986fbdb2b2b2,

msdUUID=741f7913-09ad-4d96-a225-3bda6d06e042'</tt><tt><br>
        </tt><tt>Thread-13::DEBUG::2014-07-30
          15:24:49,780::task::885::TaskManager.Task::(_run)
          Task=`07997682-8d6b-42fd-acb3-1360f14860d6`::Task._run:
          07997682-8d6b-42fd-acb3-1360f14860d6
          ('a4dfaf64-adfa-4cfa-88d5-986fbdb2b2b2', 2,
          '741f7913-09ad-4d96-a225-3bda6d06e042', 1, None) {} failed -
          stopping task</tt><tt><br>
        </tt><tt>Thread-13::DEBUG::2014-07-30
          15:24:49,780::task::1211::TaskManager.Task::(stop)
          Task=`07997682-8d6b-42fd-acb3-1360f14860d6`::stopping in state
          preparing (force False)</tt><tt><br>
        </tt><tt>Thread-13::DEBUG::2014-07-30
          15:24:49,780::task::990::TaskManager.Task::(_decref)
          Task=`07997682-8d6b-42fd-acb3-1360f14860d6`::ref 1 aborting
          True</tt><tt><br>
        </tt><b><font
color="#cc0000"><tt>Thread-13::<a
class="moz-txt-link-freetext"
href="INFO::2014-07-30">INFO::2014-07-30</a>
              15:24:49,780::task::1168::TaskManager.Task::(prepare)
              Task=`07997682-8d6b-42fd-acb3-1360f14860d6`::aborting:
              Task is aborted: 'Cannot find master domain' - code
304</tt></font></b><tt><br>
        </tt><tt>Thread-13::DEBUG::2014-07-30
          15:24:49,781::task::1173::TaskManager.Task::(prepare)
          Task=`07997682-8d6b-42fd-acb3-1360f14860d6`::Prepare: aborted:
          Cannot find master domain</tt><tt><br>
        </tt><tt>Thread-13::DEBUG::2014-07-30
          15:24:49,781::task::990::TaskManager.Task::(_decref)
          Task=`07997682-8d6b-42fd-acb3-1360f14860d6`::ref 0 aborting
          True</tt><tt><br>
        </tt><tt>Thread-13::DEBUG::2014-07-30
          15:24:49,781::task::925::TaskManager.Task::(_doAbort)
          Task=`07997682-8d6b-42fd-acb3-1360f14860d6`::Task._doAbort:
          force False</tt><tt><br>
        </tt><tt>Thread-13::DEBUG::2014-07-30
          15:24:49,781::resourceManager::977::ResourceManager.Owner::(cancelAll)
          Owner.cancelAll requests {}</tt><tt><br>
        </tt><tt>Thread-13::DEBUG::2014-07-30
          15:24:49,781::task::595::TaskManager.Task::(_updateState)
          Task=`07997682-8d6b-42fd-acb3-1360f14860d6`::moving from state
          preparing -&gt; state aborting</tt><tt><br>
        </tt><tt>Thread-13::DEBUG::2014-07-30
          15:24:49,781::task::550::TaskManager.Task::(__state_aborting)
          Task=`07997682-8d6b-42fd-acb3-1360f14860d6`::_aborting:
          recover policy none</tt><tt><br>
        </tt><tt>Thread-13::DEBUG::2014-07-30
          15:24:49,782::task::595::TaskManager.Task::(_updateState)
          Task=`07997682-8d6b-42fd-acb3-1360f14860d6`::moving from state
          aborting -&gt; state failed</tt><tt><br>
        </tt><tt>Thread-13::DEBUG::2014-07-30
          15:24:49,782::resourceManager::940::ResourceManager.Owner::(releaseAll)
          Owner.releaseAll requests {} resources {}</tt><tt><br>
        </tt><tt>Thread-13::DEBUG::2014-07-30
          15:24:49,782::resourceManager::977::ResourceManager.Owner::(cancelAll)
          Owner.cancelAll requests {}</tt><tt><br>
        </tt><tt>Thread-13::ERROR::2014-07-30
          15:24:49,782::dispatcher::65::Storage.Dispatcher.Protect::(run)
          {'status': {'message': "Cannot find master domain:
          'spUUID=a4dfaf64-adfa-4cfa-88d5-986fbdb2b2b2,
          msdUUID=741f7913-09ad-4d96-a225-3bda6d06e042'", 'code':
304}}</tt></font><tt><br>
      </tt><br>
    </blockquote>
    <u><b>Please advise if I need to have one Storage Domain per cluster
        in given datacenter.</b></u><br>
    <br>
    Thanks, Santosh.<br>
    <br>
  </body>
</html>

<pre>

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sole use of the intended recipient. Any unauthorized review, use or distribution
by others is strictly prohibited. If you have received the message by mistake,
please advise the sender by reply email and delete the message. Thank you."
**********************************************************************</pre>

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[ovirt-users] Sharing iSCSI data stroage domain across multiple clusters in the same datacenter