Ayal Baron has posted comments on this change.

Change subject: core: prevent simultaneous reconstructs on the same 
pool(#845838)
......................................................................


Patch Set 12: I would prefer that you didn't submit this

(4 inline comments)

....................................................
File 
backend/manager/modules/bll/src/main/java/org/ovirt/engine/core/bll/storage/ReconstructMasterDomainCommand.java
Line 54: 
Line 55:     @Override
Line 56:     protected boolean canDoAction() {
Line 57:         boolean toReturn = false;
Line 58:         // if we perform an recovery storage pool comand we should 
only try to lock the pool
s/.*/ Abort manual reconstruct if system has automatically initiated pool 
reconstruct/
Line 59:         // in order to avoid interrupting automatic processes.
Line 60:         if (VdcActionType.RecoveryStoragePool.equals(getActionType()) 
&&
Line 61:                 
!IrsBrokerCommand.tryLockIrsProxyData(getStoragePool().getId())) {
Line 62:             // TODO: distinguish between storage pool during 
reconstruct and deleted storage pool, this message


Line 71:             }
Line 72:         }
Line 73: 
Line 74:         try {
Line 75:             toReturn = performChecks();
instead of all this toReturn business, why not:
if !performChecks() {
    throw ...
} catch (Exception e) {
    IrsBrokerCommand...
    return false;
}

return true;
Line 76:         } catch (Exception e) {
Line 77:             toReturn = false;
Line 78:         } finally {
Line 79:             if (!toReturn) {


Line 187:                     .RunVdsCommand(
Line 188:                             VDSCommandType.MarkPoolInReconstructMode,
Line 189:                             new 
MarkPoolInReconstructModeVDSCommandParameters(getStoragePoolId()
Line 190:                                     .getValue(), 
ReconstructMarkAction.ClearCache));
Line 191:             // if we got here - it mean that the IrsProxyData lock 
was performed by
s/mean/means/
s/performed/acquired/
Line 192:             // canDoAction() method and that it's still held by this 
thread.
Line 193:             
IrsBrokerCommand.unLockIrsProxyData(getStoragePool().getId());
Line 194:         }
Line 195:     }


....................................................
File backend/manager/modules/dal/src/main/resources/bundles/AppErrors.properties
Line 330: ACTION_TYPE_FAILED_STORAGE_DOMAIN_STATUS_ILLEGAL=Cannot ${action} 
${type}. The relevant Storage Domain is inaccessible.\n\
Line 331:       -Please handle Storage Domain issues and retry the operation.
Line 332: ACTION_TYPE_FAILED_STORAGE_DOMAIN_STATUS_ILLEGAL2=Cannot ${action} 
${type}. Storage status is ${status}.\n\
Line 333:       -Please check Storage Domain and retry the operation.
Line 334: ACTION_TYPE_FAILED_STORAGE_POOL_DURING_RECONSTRUCT=Cannot ${action}. 
Storage Pool is currently being reconstructed.
Afaik the only reference to this operation in the GUI is "Data Center 
Re-Initialize" (not that I understand the phrasing, but anyway).
So for consistency this should be around the same lines.  Probably something 
like:
'data center reinitialization in progress' or something.

Also, users should not see 'pool' anywhere as we do not expose this concept.
Line 335: STORAGE_POOL_REINITIALIZE_WITH_MORE_THAN_ONE_DATA_DOMAIN = Cannot 
${action} ${type}.\n\
Line 336: The ${action} action can be performed on a Data Center that has only 
one Storage Domain in Active/Unknown state.
Line 337: ACTION_TYPE_FAILED_STORAGE_POOL_NOT_EXIST= Data Center doesn't exist.
Line 338: ACTION_TYPE_FAILED_STORAGE_DOMAIN_NOT_IN_STORAGE_POOL=Cannot 
${action} ${type}. The selected Storage Domain is not part of the Data Center.


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Gerrit-MessageType: comment
Gerrit-Change-Id: Ia0dfb227b014af602e5bd1ab952d7c543992aa0f
Gerrit-PatchSet: 12
Gerrit-Project: ovirt-engine
Gerrit-Branch: master
Gerrit-Owner: Liron Aravot <lara...@redhat.com>
Gerrit-Reviewer: Allon Mureinik <amure...@redhat.com>
Gerrit-Reviewer: Ayal Baron <aba...@redhat.com>
Gerrit-Reviewer: Daniel Paikov <pai...@gmail.com>
Gerrit-Reviewer: Liron Aravot <lara...@redhat.com>
Gerrit-Reviewer: Maor Lipchuk <mlipc...@redhat.com>
Gerrit-Reviewer: Michael Kublin <mkub...@redhat.com>
Gerrit-Reviewer: Vered Volansky <vvola...@redhat.com>
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