Improve failover response time if split brain prevention is enabled
but FMS_TAKEOVER_PRIORITISE_PARTITION_SIZE is set to 0.
Also, return immediately if node promotion fails to avoid
sending active role to RDA.
---
src/fm/fmd/fm_rda.cc | 14 +++++++++-----
1 file changed, 9 insertions(+), 5 deletions(-)
diff --git a/src/fm/fmd/fm_rda.cc b/src/fm/fmd/fm_rda.cc
index 504757c..d3063ba 100644
--- a/src/fm/fmd/fm_rda.cc
+++ b/src/fm/fmd/fm_rda.cc
@@ -88,17 +88,20 @@ uint32_t fm_rda_set_role(FM_CB *fm_cb, PCS_RDA_ROLE role) {
Consensus consensus_service;
if (consensus_service.IsEnabled() == true) {
- // Allow topology events to be processed first. The MDS thread may
- // be processing MDS down events and updating cluster_size concurrently.
- // We need cluster_size to be as accurate as possible, without waiting
- // too long for node down events.
- std::this_thread::sleep_for(std::chrono::seconds(4));
+ if (consensus_service.PrioritisePartitionSize() == true) {
+ // Allow topology events to be processed first. The MDS thread may
+ // be processing MDS down events and updating cluster_size concurrently.
+ // We need cluster_size to be as accurate as possible, without waiting
+ // too long for node down events.
+ std::this_thread::sleep_for(std::chrono::seconds(4));
+ }
rc = consensus_service.PromoteThisNode(true, fm_cb->cluster_size);
if (rc != SA_AIS_OK && rc != SA_AIS_ERR_EXIST) {
LOG_ER("Unable to set active controller in consensus service");
opensaf_quick_reboot("Unable to set active controller "
"in consensus service");
+ return NCSCC_RC_FAILURE;
} else if (rc == SA_AIS_ERR_EXIST) {
// @todo if we don't reboot, we don't seem to recover from this. Can we
// improve?
@@ -107,6 +110,7 @@ uint32_t fm_rda_set_role(FM_CB *fm_cb, PCS_RDA_ROLE role) {
"cluster?");
opensaf_quick_reboot("A controller is already active. We were separated "
"from the cluster?");
+ return NCSCC_RC_FAILURE;
}
}
--
2.7.4
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