9 More Discussions You Might Find Interesting
1. Virtualization and Cloud Computing
Hello,
in case somebody has a NoMachine NX cluster, and is suffering from its dumb round-robin dispatcher, here is a solution:
nxpub (NX Pluggable User Balancer).
It should run on all LUnix OS. Scripts for install/uninstall are supplied.
While tested with NX 3 (NX 3.5 is the latest), it might... (2 Replies)
Discussion started by: MadeInGermany
2 Replies
2. Linux
Hello Guys,
Hope you all doing well . :)
I was checking load balance command (uptime)on VM server and got below output.
# uptime
07:08:40 up 52 min, 2 users,a load average: 0.45, 0.11, 0.03
A :How we can calculate load average?
Thank you in advance !!
Cheers:)
Dont forget... (1 Reply)
Discussion started by: Nats
1 Replies
3. AIX
Would anyone please kindly help to solve this problem...
An LPAR with the below network configuration. ent0 and ent1 are logical lan (virtual ethernet) from VIO SEA.
en0
1.2.3.4 <- boot ip
192.168.1.1 <- persistent ip
192.168.1.10 <- service ip
en1
11.22.33.44 <- boot ip
When I... (6 Replies)
Discussion started by: skeyeung
6 Replies
4. UNIX for Advanced & Expert Users
we use piranha load balancer with two nodes
even the primary node is running fine and up failover happend to secondary node
this happend quite few times ehy node2 cannot talk to node1
what logs are to be checked and investigate why failover occured
pulse: partner dead: activating... (0 Replies)
Discussion started by: robo
0 Replies
5. AIX
hi,
when I do a failover, hacmp always starts db2 but recently it fails to start db2..noticed the issue is db2nodes.cfg is not modified by hacmp and is still showing primary node..manually changed the node name to secondary after which db2 started immediately..unable to figure out why hacmp is... (4 Replies)
Discussion started by: gkr747
4 Replies
6. Red Hat
Hi,
What's the best load balancer for Linux (CentOS, SuSE) according to your personal experience?
Linux Virtual Server (LVS) is a famous one, but their download site has not been updated since 2007. Their web and mailing list are so quiet. Is the Ultra Monkey project including LVS... (1 Reply)
Discussion started by: aixlover
1 Replies
7. AIX
Hi All,
How do I trigger the failover on the second hacmp server?
Please give me idea and I will do the rest.
Thanks,
itik (2 Replies)
Discussion started by: itik
2 Replies
8. AIX
Hello All,
Here is a snipet from our cluster.log, I was wondering if anyone could shed some light on what may have caused the failover.
The first two lines indicate a possible memory issue which I am currently looking into.
Thanks. (0 Replies)
Discussion started by: Wez
0 Replies
9. Programming
Halo mates,
I m going to write a load balancer with C. Does anybody know some good reference on this?
Cheers,
Elton (5 Replies)
Discussion started by: EltonSky
5 Replies
if_mpadm(1M) System Administration Commands if_mpadm(1M)
NAME
if_mpadm - change operational status of interfaces within a multipathing group
SYNOPSIS
/usr/sbin/if_mpadm -d interface_name
/usr/sbin/if_mpadm -r interface_name
DESCRIPTION
Use the if_mpadm utility to change the operational status of interfaces that are part of an IP multipathing group. If the interface is
operational, you can use if_mpadm -d to detach or off-line the interface. If the interface is off-lined, use if_mpadm -r to revert it to
its original state.
When a network interface is off-lined, all network access fails over to a different interface in the IP multipathing group. Any addresses
that do not failover are brought down. Network access includes unicast, broadcast, and multicast for IPv4 and unicast and multicast for
IPv6. Addresses marked with IFF_NOFAILOVER do not failover. They are marked down. After an interface is off-lined, the system will not use
the interface for any outbound or inbound traffic, and the interface can be safely removed from the system without any loss of network
access.
The if_mpadm utility can be applied only to interfaces that are part of an IP multipathing group.
OPTIONS
The if_mpadm utility supports the following options:
-d interface_name Detach or off-line the interface specified by interface_name.
-r interface_name Reattach or undo the previous detach or off-line operation on the interface specified by interface_name. Unless
the -d option was used to detach or off-line the interface, this option will fail.
EXAMPLES
Example 1: Detaching an Interface
Use the following command to off-line or detach the interface. All network access will failover from hme0 to other interfaces in the same
IP multipathing group. If no other interfaces are in the same group, the operation will fail.
example% if_mpadm -d hme0
Example 2: Reattaching an Off-line Interface
Use the following command to undo the previous operation. Network access will failback to hme0.
example% if_mpdadm -r hme0
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
|Interface Stability |Unstable |
+-----------------------------+-----------------------------+
SEE ALSO
ifconfig(1M), in.mpathd(1M), attributes(5)
DIAGNOSTICS
off-line failed as there is no other functional interface available in the multipathing group for failing over the network access.
This message means that other interfaces in the group are failed over already or the multipathing configuration was not suitable for com-
pleting a failover.
off-line cannot be undone because multipathing configuration is not consistent across all the interfaces in the group.
This message means that some interfaces in the IP multipathing group are not configured consistently with other interfaces in the group,
for example, one of the interfaces in the group does not have an IFF_NOFAILOVER address.
SunOS 5.10 3 Sep 2002 if_mpadm(1M)