[Ocfs2-devel] [PATCH] A bug in the end of DLM recovery

[Gechangwei]

Hi,

I found an issue in the end of DLM recovery.
When DLM recovery comes to the end of recovery procedure, it will remaster all locks in other nodes.
Right after a request message is sent to a node A (say), the new master node will wait for node A’s response forever.
But node A may die just after receiving the remaster request, not responses to new master node yet.
That causes new master node waiting forever.
I think below patch can solve this problem. Please have a review!


Subject: [PATCH] interrupt waiting for node's response if node dies

Signed-off-by: gechangwei <ge.changwei at h3c.com>
---
dlm/dlmrecovery.c | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/dlm/dlmrecovery.c b/dlm/dlmrecovery.c
index 3d90ad7..5e455cb 100644
--- a/dlm/dlmrecovery.c
+++ b/dlm/dlmrecovery.c
@@ -679,6 +679,10 @@ static int dlm_remaster_locks(struct dlm_ctxt *dlm, u8 dead_node)
                                                 dlm->name, ndata->node_num,
                                                 ndata->state==DLM_RECO_NODE_DATA_RECEIVING ?
                                                 "receiving" : "requested");
+                                            if (dlm_is_node_dead(dlm, ndata->node_num)) {
+                                                      mlog(0, "%s: node %u died after requesting all locks.\n");
+                                                      ndata->state = DLM_RECO_NODE_DATA_DONE;
+                                            }
                                            all_nodes_done = 0;
                                            break;
                                   case DLM_RECO_NODE_DATA_DONE:
--

BR.

Chauncey


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