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Latest revisions

# Date Author Comment
adfa3b26 05/20/2011 01:37 pm Adeodato Simo

Cluster verify: check for nodes/instances with no group

Previously, all nodes and instances would always be visited/verified. By
driving the verification by node group now, we will miss nodes and
instances that can't be reached from existing node groups, should that rare...
fe870648 05/20/2011 01:37 pm Adeodato Simo

Cluster verify: fix LV checks for split instances

When sharding by group, if a mirrored instance is split (primary and
secondary) between two groups, its volumes will not be properly checked:
the group of the primary will warn about a missing volume in the secondary,...
2dad1652 05/20/2011 01:37 pm Adeodato Simo

Cluster verify: make NV_NODELIST smaller

To cope with increasing cluster sizes, we now make nodes try to contact all
other nodes in their group, and one node from every other group.

Signed-off-by: Adeodato Simo <>
Signed-off-by: Guido Trotter <>...
d23a2a9d 05/20/2011 01:37 pm Adeodato Simo

Cluster verify: verify hypervisor parameters only once

The list of all hypervisor parameters has to be computed in
LUClusterVerifyGroup, since it needs to be passed to nodes as
NV_HVPARAMS. However, it is better only to verify said parameters once,
out of LUClusterVerifyConfig....
bf93ae69 05/20/2011 01:37 pm Adeodato Simo

Split LUClusterVerify into LUClusterVerify{Config,Group}

With this change, LUClusterVerifyConfig becomes a "light" LU that only
verifies the global config and other, master-only settings, and the bulk of
node/instance verification is done by LUClusterVerifyGroup, which only acts...
a5c30dc2 05/20/2011 01:37 pm Adeodato Simo

Cluster verify: factor out error codes and functions

We move all error code definitions, plus the _Error and _ErrorIf helpers,
to a private _VerifyErrors mix-in class that can be later shared by the new
two cluster verify LUs.

(_Error and _ErrorIf code was moved around verbatim, except to disable...
14970c32 05/20/2011 01:37 pm Adeodato Simo

Cluster verify: make "instance runs in wrong node" node-driven

Previously, the "instance should not be running in this node" error was
computed by verifying, for each instance, whether any node other than its
primary was running it. But this is not a well-suited approach if we were...
4e272d8c 05/20/2011 01:37 pm Guido Trotter

Verify an absent vm_capable node for files

If we're not verifying all nodes, adding a node outside the current
group for file checksums helps us making sure checksums are the same in
all of the cluster.

Signed-off-by: Guido Trotter <>...
2f10179b 05/20/2011 01:37 pm Adeodato Simo

Cluster verify: master must be present for _VerifyFiles

This commit prepares the call to _VerifyFiles for the case when the master
node is not one of the nodes that's being verified (which will be the case
for all node groups but one). We fix it by always passing master info and...
cf692cd0 05/20/2011 01:37 pm Adeodato Simo

Cluster verify: don't assume we're verifying all nodes/instances

This commit fixes a few initial simple cases in which it was assumed that
we're always working over the whole cluster. With this change, we
differentiate between "nodes/instances to verify" and "checks that need...

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