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authorGiulio Fidente <gfidente@redhat.com>2016-02-08 23:54:54 +0100
committerGiulio Fidente <gfidente@redhat.com>2016-03-08 14:00:59 +0100
commit42fef7257ddceaca42086d8f6b75a19e61cbf68d (patch)
treeab54ac39785650bcbfb51d3400e4686693c31cce /puppet/hieradata
parentbb05fa304a2eed2caa4840e8039832d369a357f7 (diff)
Increase default netdev_max_backlog to 10x
It has been observed that on large clouds the netdev backlog buffer might overflow. This change increases the default by ten times. The /proc/net/softnet_stat file contains a counter in the 2nd column that is incremented when the netdev backlog queue overflows. If this value is incrementing over time, then netdev_max_backlog needs to be increased [1]. [1]. https://bugzilla.redhat.com/show_bug.cgi?id=1283676 Change-Id: Iec12324fd3a24e8b608b1e1849c270cc24cb0e60
Diffstat (limited to 'puppet/hieradata')
-rw-r--r--puppet/hieradata/common.yaml2
1 files changed, 2 insertions, 0 deletions
diff --git a/puppet/hieradata/common.yaml b/puppet/hieradata/common.yaml
index 7a5e54d8..98cec364 100644
--- a/puppet/hieradata/common.yaml
+++ b/puppet/hieradata/common.yaml
@@ -31,6 +31,8 @@ sysctl_settings:
value: 0
net.ipv6.conf.default.autoconf:
value: 0
+ net.core.netdev_max_backlog:
+ value: 10000
nova::rabbit_heartbeat_timeout_threshold: 60
neutron::rabbit_heartbeat_timeout_threshold: 60