kernel_samsung_sm7125

jenna

History

Rumen G. Bogdanovski 1e356f9cdf [IPVS]: Bind connections on stanby if the destination exists This patch fixes the problem with node overload on director fail-over. Given the scenario: 2 nodes each accepting 3 connections at a time and 2 directors, director failover occurs when the nodes are fully loaded (6 connections to the cluster) in this case the new director will assign another 6 connections to the cluster, If the same real servers exist there. The problem turned to be in not binding the inherited connections to the real servers (destinations) on the backup director. Therefore: "ipvsadm -l" reports 0 connections: root@test2:~# ipvsadm -l IP Virtual Server version 1.2.1 (size=4096) Prot LocalAddress:Port Scheduler Flags -> RemoteAddress:Port Forward Weight ActiveConn InActConn TCP test2.local:5999 wlc -> node473.local:5999 Route 1000 0 0 -> node484.local:5999 Route 1000 0 0 while "ipvs -lnc" is right root@test2:~# ipvsadm -lnc IPVS connection entries pro expire state source virtual destination TCP 14:56 ESTABLISHED 192.168.0.10:39164 192.168.0.222:5999 192.168.0.51:5999 TCP 14:59 ESTABLISHED 192.168.0.10:39165 192.168.0.222:5999 192.168.0.52:5999 So the patch I am sending fixes the problem by binding the received connections to the appropriate service on the backup director, if it exists, else the connection will be handled the old way. So if the master and the backup directors are synchronized in terms of real services there will be no problem with server over-committing since new connections will not be created on the nonexistent real services on the backup. However if the service is created later on the backup, the binding will be performed when the next connection update is received. With this patch the inherited connections will show as inactive on the backup: root@test2:~# ipvsadm -l IP Virtual Server version 1.2.1 (size=4096) Prot LocalAddress:Port Scheduler Flags -> RemoteAddress:Port Forward Weight ActiveConn InActConn TCP test2.local:5999 wlc -> node473.local:5999 Route 1000 0 1 -> node484.local:5999 Route 1000 0 1 rumen@test2:~$ cat /proc/net/ip_vs IP Virtual Server version 1.2.1 (size=4096) Prot LocalAddress:Port Scheduler Flags -> RemoteAddress:Port Forward Weight ActiveConn InActConn TCP C0A800DE:176F wlc -> C0A80033:176F Route 1000 0 1 -> C0A80032:176F Route 1000 0 1 Regards, Rumen Bogdanovski Acked-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: Rumen G. Bogdanovski <rumen@voicecho.com> Signed-off-by: Simon Horman <horms@verge.net.au>		18 years ago
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9p	9p: add missing end-of-options record for trans_fd	18 years ago
802	…
8021q	[VLAN]: Fix SET_VLAN_INGRESS_PRIORITY_CMD ioctl	18 years ago
appletalk	[NET]: Forget the zero_it argument of sk_alloc()	18 years ago
atm	[NET]: Forget the zero_it argument of sk_alloc()	18 years ago
ax25	[NET]: Forget the zero_it argument of sk_alloc()	18 years ago
bluetooth	[NET]: Forget the zero_it argument of sk_alloc()	18 years ago
bridge	[NETFILTER]: ebt_arp: fix --arp-gratuitous matching dependence on --arp-ip-{src,dst}	18 years ago
core	[NET]: Clean proto_(un)register from in-code ifdefs	18 years ago
dccp	[DCCP]: Use DEFINE_PROTO_INUSE infrastructure.	18 years ago
decnet	[DECNET]: "addr" module param can't be __initdata	18 years ago
econet	[NET]: Forget the zero_it argument of sk_alloc()	18 years ago
ethernet	[NET]: Validate device addr prior to interface-up	18 years ago
ieee80211	[NET]: Removing duplicit #includes	18 years ago
ipv4	[IPVS]: Bind connections on stanby if the destination exists	18 years ago
ipv6	[IPSEC]: Fix crypto_alloc_comp error checking	18 years ago
ipx	[NET]: Forget the zero_it argument of sk_alloc()	18 years ago
irda	[IRDA] IRNET: Fix build when TCGETS2 is defined.	18 years ago
iucv	[NET]: Forget the zero_it argument of sk_alloc()	18 years ago
key	[NET]: Forget the zero_it argument of sk_alloc()	18 years ago
lapb	…
llc	[NET]: Forget the zero_it argument of sk_alloc()	18 years ago
mac80211	cleanup asm/scatterlist.h includes	18 years ago
netfilter	[NETFILTER]: nf_sockopts list head cleanup	18 years ago
netlabel	[NetLabel]: correct usage of RCU locking	18 years ago
netlink	[NET]: Forget the zero_it argument of sk_alloc()	18 years ago
netrom	[NET]: Forget the zero_it argument of sk_alloc()	18 years ago
packet	[NET]: Forget the zero_it argument of sk_alloc()	18 years ago
rfkill	get rid of input BIT* duplicate defines	18 years ago
rose	[NET]: Forget the zero_it argument of sk_alloc()	18 years ago
rxrpc	[SG] Get rid of __sg_mark_end()	18 years ago
sched	[PKT_SCHED] CLS_U32: Fix endianness problem with u32 classifier hash masks.	18 years ago
sctp	[SCTP]: Use the {DEFINE\|REF}_PROTO_INUSE infrastructure	18 years ago
sunrpc	[SG] Get rid of __sg_mark_end()	18 years ago
tipc	[NET]: Forget the zero_it argument of sk_alloc()	18 years ago
unix	[NET]: Forget the zero_it argument of sk_alloc()	18 years ago
wanrouter	…
wireless	…
x25	[NET]: Forget the zero_it argument of sk_alloc()	18 years ago
xfrm	cleanup asm/scatterlist.h includes	18 years ago
Kconfig	…
Makefile	…
TUNABLE	…
compat.c	…
nonet.c	…
socket.c	[NET]: Fix error reporting in sys_socketpair().	18 years ago
sysctl_net.c	…