Working in the CLI
Server Instance Flags
A flag may be turned off by prefixing with "!".
hot_spare
Enable the hot spare check box if you plan to use this server as a backup server,
in case the other server instances in a server pool on the cluster fail. Enabling
hot spare forces Equalizer to direct incoming connections to this server only if all
the other servers in the cluster are down. You should only configure one server
in a cluster as a hot spare.
persist_override
- Disables persistence for the
server when the persist flag (Layer 7 cluster) or a non-zero sticky time (Layer 4
cluster) is set on a cluster. For a Layer 7 cluster, this means that a cookie will not
be inserted into the response header when returned to the client. No sticky
record is set for a Layer 4 cluster. This flag is usually used to disable persistence
for a hot spare.
quiesce
When enabled, Equalizer avoids sending new requests to the server. This is usu-
ally used in preparation for shutting down an HTTP or HTTPS server, and is some-
times also called “server draining”.
probe_l4
This flag enables or disables Layer 4 TCP and ACV probes for this server. By
default this flag is enabled.
strict_maxconn
This flag allows you to customize the behavior of the max connections parameter
Using Health Check Instance Commands in a Server Instance Specific Context
eqcli sp-
spname
-si-
siname
-hci-
hciname
>
flags
{[!]require_response
eqcli sp-
spname
-si-
siname
-hci-
hciname
>
vlb_param
: Set the VLB
Parameter for
health check
instance.
Health Check Instance Flags
A flag may be turned off by prefixing with "!".
require_response
When the require_response flag is disabled (the default) and no response is
received from the server application, then load balancing decisions are made
without considering the health check’s returned load value. When the require_
response flag is enabled and no response is received from the server applic-
ation, then the server is marked down and no cluster traffic is sent to it.
Server instance specific commands can be applied to multiple server instances by entering a
comma-separated list of server instance names on the command line. For example, to set the
weight to 125 on three server instances (sv01, sv02, sv03) in server pool sp01, you could enter a
command like this:
eqcli >
srvpool sp01 si sv01,sv02,sv03 weight 125
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