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ipvs: add sync_persist_mode flag

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Add sync_persist_mode flag to reduce sync traffic
by syncing only persistent templates.

Signed-off-by: Julian Anastasov <ja@ssi.bg>
Tested-by: Aleksey Chudov <aleksey.chudov@gmail.com>
Signed-off-by: Simon Horman <horms@verge.net.au>
This commit is contained in:
Julian Anastasov
2013-06-24 22:44:41 +03:00
committed by Simon Horman
parent eba3b5a787
commit 4d0c875dcc
4 changed files with 43 additions and 0 deletions
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13
Documentation/networking/ipvs-sysctl.txt
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@@ -181,6 +181,19 @@ snat_reroute - BOOLEAN
always be the same as the original route so it is an optimisation
to disable snat_reroute and avoid the recalculation.
sync_persist_mode - INTEGER
default 0
Controls the synchronisation of connections when using persistence
0: All types of connections are synchronised
1: Attempt to reduce the synchronisation traffic depending on
the connection type. For persistent services avoid synchronisation
for normal connections, do it only for persistence templates.
In such case, for TCP and SCTP it may need enabling sloppy_tcp and
sloppy_sctp flags on backup servers. For non-persistent services
such optimization is not applied, mode 0 is assumed.
sync_version - INTEGER
default 1