HAProxy track_script + nopreempt not workingKeepalived not honoring nopreemptkeepalived nopreempt option not workingMake keepalived send 0 priority when going to FAULT statekeepalived track_script doesn't seem to runKeepalived unwanted transition to masterkeepalived VRRP_script not failing overHAProxy stats page not workingHAProxy don't balancing requests between nodes of Galera clusterkeepalived failover downtimeWhy doesn't keepalived track_script restart keepalived when HAProxy drops out?
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HAProxy track_script + nopreempt not working
Keepalived not honoring nopreemptkeepalived nopreempt option not workingMake keepalived send 0 priority when going to FAULT statekeepalived track_script doesn't seem to runKeepalived unwanted transition to masterkeepalived VRRP_script not failing overHAProxy stats page not workingHAProxy don't balancing requests between nodes of Galera clusterkeepalived failover downtimeWhy doesn't keepalived track_script restart keepalived when HAProxy drops out?
.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty height:90px;width:728px;box-sizing:border-box;
I have 2 nodes with Keepalived v1.2.13, in Amazon AWS VPC.
I'm trying to achieve this scenario, assuming Node1 is MASTER:
If I stop HAProxy or stop keepalived or stop the node, failover to Node2.
If I start HAProxy back up on Node1 or start keepalived or start the node, do not failover to Node1 (no flapping).
With the following configuration, only by stopping keepalived or stopping the node, does the failover works. The priority change due to the track_script doesn't seem to affect the MASTER election.
Node1
vrrp_script chk_haproxy # Requires keepalived-1.1.13
script "killall -0 haproxy" # cheaper than pidof
interval 2 # check every 2 seconds
fall 2
weight 2 # add 2 points of prio if OK
vrrp_instance VI_1
advert_int 2
state BACKUP
nopreempt
interface eth0
virtual_router_id 51
priority 101
unicast_peer
172.17.16.10
notify_master "/etc/keepalived/randomscript.sh"
track_script
chk_haproxy
Node2
vrrp_script chk_haproxy # Requires keepalived-1.1.13
script "killall -0 haproxy" # cheaper than pidof
interval 2 # check every 2 seconds
fall 2
weight 2 # add 2 points of prio if OK
vrrp_instance VI_1
advert_int 2
state BACKUP
nopreempt
interface eth0
virtual_router_id 51
priority 100
unicast_peer
172.17.16.11
notify_master "/etc/keepalived/randomscript.sh"
track_script
chk_haproxy
haproxy keepalived
asked Apr 22 '15 at 22:49
Bastien974Bastien974
84493153
add a comment |
I have 2 nodes with Keepalived v1.2.13, in Amazon AWS VPC.
I'm trying to achieve this scenario, assuming Node1 is MASTER:
If I stop HAProxy or stop keepalived or stop the node, failover to Node2.
If I start HAProxy back up on Node1 or start keepalived or start the node, do not failover to Node1 (no flapping).
With the following configuration, only by stopping keepalived or stopping the node, does the failover works. The priority change due to the track_script doesn't seem to affect the MASTER election.
Node1
vrrp_script chk_haproxy # Requires keepalived-1.1.13
script "killall -0 haproxy" # cheaper than pidof
interval 2 # check every 2 seconds
fall 2
weight 2 # add 2 points of prio if OK
vrrp_instance VI_1
advert_int 2
state BACKUP
nopreempt
interface eth0
virtual_router_id 51
priority 101
unicast_peer
172.17.16.10
notify_master "/etc/keepalived/randomscript.sh"
track_script
chk_haproxy
Node2
vrrp_script chk_haproxy # Requires keepalived-1.1.13
script "killall -0 haproxy" # cheaper than pidof
interval 2 # check every 2 seconds
fall 2
weight 2 # add 2 points of prio if OK
vrrp_instance VI_1
advert_int 2
state BACKUP
nopreempt
interface eth0
virtual_router_id 51
priority 100
unicast_peer
172.17.16.11
notify_master "/etc/keepalived/randomscript.sh"
track_script
chk_haproxy
haproxy keepalived
asked Apr 22 '15 at 22:49
Bastien974Bastien974
84493153
I also tried on both nodes : state EQUAL, priority 100. This cause a race condition when both instances are booting at the same time, both transition to MASTER, execute the randomscript.sh, and 4-5 seconds after that one node transition to BACKUP, but I don't want the script to be executed.
– Bastien974
Apr 23 '15 at 12:52
migrate your cluster to pacemaker
– c4f4t0r
Jan 8 at 12:34
add a comment |
I have 2 nodes with Keepalived v1.2.13, in Amazon AWS VPC.
I'm trying to achieve this scenario, assuming Node1 is MASTER:
If I stop HAProxy or stop keepalived or stop the node, failover to Node2.
If I start HAProxy back up on Node1 or start keepalived or start the node, do not failover to Node1 (no flapping).
With the following configuration, only by stopping keepalived or stopping the node, does the failover works. The priority change due to the track_script doesn't seem to affect the MASTER election.
Node1
vrrp_script chk_haproxy # Requires keepalived-1.1.13
script "killall -0 haproxy" # cheaper than pidof
interval 2 # check every 2 seconds
fall 2
weight 2 # add 2 points of prio if OK
vrrp_instance VI_1
advert_int 2
state BACKUP
nopreempt
interface eth0
virtual_router_id 51
priority 101
unicast_peer
172.17.16.10
notify_master "/etc/keepalived/randomscript.sh"
track_script
chk_haproxy
Node2
vrrp_script chk_haproxy # Requires keepalived-1.1.13
script "killall -0 haproxy" # cheaper than pidof
interval 2 # check every 2 seconds
fall 2
weight 2 # add 2 points of prio if OK
vrrp_instance VI_1
advert_int 2
state BACKUP
nopreempt
interface eth0
virtual_router_id 51
priority 100
unicast_peer
172.17.16.11
notify_master "/etc/keepalived/randomscript.sh"
track_script
chk_haproxy
haproxy keepalived
asked Apr 22 '15 at 22:49
Bastien974Bastien974
84493153
I have 2 nodes with Keepalived v1.2.13, in Amazon AWS VPC.
I'm trying to achieve this scenario, assuming Node1 is MASTER:
If I stop HAProxy or stop keepalived or stop the node, failover to Node2.
If I start HAProxy back up on Node1 or start keepalived or start the node, do not failover to Node1 (no flapping).
With the following configuration, only by stopping keepalived or stopping the node, does the failover works. The priority change due to the track_script doesn't seem to affect the MASTER election.
Node1
vrrp_script chk_haproxy # Requires keepalived-1.1.13
script "killall -0 haproxy" # cheaper than pidof
interval 2 # check every 2 seconds
fall 2
weight 2 # add 2 points of prio if OK
vrrp_instance VI_1
advert_int 2
state BACKUP
nopreempt
interface eth0
virtual_router_id 51
priority 101
unicast_peer
172.17.16.10
notify_master "/etc/keepalived/randomscript.sh"
track_script
chk_haproxy
Node2
vrrp_script chk_haproxy # Requires keepalived-1.1.13
script "killall -0 haproxy" # cheaper than pidof
interval 2 # check every 2 seconds
fall 2
weight 2 # add 2 points of prio if OK
vrrp_instance VI_1
advert_int 2
state BACKUP
nopreempt
interface eth0
virtual_router_id 51
priority 100
unicast_peer
172.17.16.11
notify_master "/etc/keepalived/randomscript.sh"
track_script
chk_haproxy
haproxy keepalived
haproxy keepalived
asked Apr 22 '15 at 22:49
Bastien974Bastien974
84493153
asked Apr 22 '15 at 22:49
Bastien974Bastien974
84493153
edited Apr 23 '15 at 15:48
Bastien974
asked Apr 22 '15 at 22:49
Bastien974Bastien974
84493153
asked Apr 22 '15 at 22:49
Bastien974Bastien974
84493153
asked Apr 22 '15 at 22:49
Bastien974Bastien974
84493153
84493153
I also tried on both nodes : state EQUAL, priority 100. This cause a race condition when both instances are booting at the same time, both transition to MASTER, execute the randomscript.sh, and 4-5 seconds after that one node transition to BACKUP, but I don't want the script to be executed.
– Bastien974
Apr 23 '15 at 12:52
migrate your cluster to pacemaker
– c4f4t0r
Jan 8 at 12:34
add a comment |
I also tried on both nodes : state EQUAL, priority 100. This cause a race condition when both instances are booting at the same time, both transition to MASTER, execute the randomscript.sh, and 4-5 seconds after that one node transition to BACKUP, but I don't want the script to be executed.
– Bastien974
Apr 23 '15 at 12:52
migrate your cluster to pacemaker
– c4f4t0r
Jan 8 at 12:34
I also tried on both nodes : state EQUAL, priority 100. This cause a race condition when both instances are booting at the same time, both transition to MASTER, execute the randomscript.sh, and 4-5 seconds after that one node transition to BACKUP, but I don't want the script to be executed.
– Bastien974
Apr 23 '15 at 12:52
I also tried on both nodes : state EQUAL, priority 100. This cause a race condition when both instances are booting at the same time, both transition to MASTER, execute the randomscript.sh, and 4-5 seconds after that one node transition to BACKUP, but I don't want the script to be executed.
– Bastien974
Apr 23 '15 at 12:52
migrate your cluster to pacemaker
– c4f4t0r
Jan 8 at 12:34
migrate your cluster to pacemaker
– c4f4t0r
Jan 8 at 12:34
add a comment |
1 Answer
1
active
oldest
votes
I ended up using on both nodes :
state EQUAL
priority 100
The race condition was due to some kind of issue with the security group of the instances. So this is an issue specific to AWS.
For an unknown reason, VRRP Unicast works even though not explicitly allowed in the security group. I explicitly opened it (Custom Protocol 112) and it fixed the issue. It seems like it takes time to allow the packet during the initialization of a stack.
answered Apr 23 '15 at 17:48
Bastien974Bastien974
84493153
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
I ended up using on both nodes :
state EQUAL
priority 100
The race condition was due to some kind of issue with the security group of the instances. So this is an issue specific to AWS.
For an unknown reason, VRRP Unicast works even though not explicitly allowed in the security group. I explicitly opened it (Custom Protocol 112) and it fixed the issue. It seems like it takes time to allow the packet during the initialization of a stack.
answered Apr 23 '15 at 17:48
Bastien974Bastien974
84493153
add a comment |
I ended up using on both nodes :
state EQUAL
priority 100
The race condition was due to some kind of issue with the security group of the instances. So this is an issue specific to AWS.
For an unknown reason, VRRP Unicast works even though not explicitly allowed in the security group. I explicitly opened it (Custom Protocol 112) and it fixed the issue. It seems like it takes time to allow the packet during the initialization of a stack.
answered Apr 23 '15 at 17:48
Bastien974Bastien974
84493153
add a comment |
I ended up using on both nodes :
state EQUAL
priority 100
The race condition was due to some kind of issue with the security group of the instances. So this is an issue specific to AWS.
For an unknown reason, VRRP Unicast works even though not explicitly allowed in the security group. I explicitly opened it (Custom Protocol 112) and it fixed the issue. It seems like it takes time to allow the packet during the initialization of a stack.
answered Apr 23 '15 at 17:48
Bastien974Bastien974
84493153
I ended up using on both nodes :
state EQUAL
priority 100
The race condition was due to some kind of issue with the security group of the instances. So this is an issue specific to AWS.
For an unknown reason, VRRP Unicast works even though not explicitly allowed in the security group. I explicitly opened it (Custom Protocol 112) and it fixed the issue. It seems like it takes time to allow the packet during the initialization of a stack.
answered Apr 23 '15 at 17:48
Bastien974Bastien974
84493153
answered Apr 23 '15 at 17:48
Bastien974Bastien974
84493153
answered Apr 23 '15 at 17:48
Bastien974Bastien974
84493153
answered Apr 23 '15 at 17:48
Bastien974Bastien974
84493153
84493153
add a comment |
add a comment |
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I also tried on both nodes : state EQUAL, priority 100. This cause a race condition when both instances are booting at the same time, both transition to MASTER, execute the randomscript.sh, and 4-5 seconds after that one node transition to BACKUP, but I don't want the script to be executed.
– Bastien974
Apr 23 '15 at 12:52
migrate your cluster to pacemaker
– c4f4t0r
Jan 8 at 12:34