Cluster Status - Field Help
Current Statistics
- Cluster
- The unique identifier of the cluster associated with this server. If you use a unique name
that does not resolve to an IP address, you must provide the cluster address.
- Cluster address
- The dotted-decimal IP address of this cluster.
- Cluster alias on interface
- Specifies whether the cluster has been aliased. Possible results are: configured, unconfigured,
or unavailable.
- SYNs on active connections
- The number of redundant connection requests. A high rate of growth in this statistic might
indicate slow or no response from servers in this cluster.
- SYNs on finished connections
- The number of requests for new connections, where those new connections are the same as current
connections in FIN state.
- FINs received before SYNs
- FINs dropped due to no connection. Rapid increase in this statistic might indicate that the
stale timeout is too low. Any percentage greater than 1% of total packets forwarded might indicate
a problem.
- ACKs received before SYNs
- ACKs dropped due to no connection. Rapid increase in this variable might indicate that the
stale timeout is too low. Any percentage greater than 1% of total packets forwarded might indicate
a problem.
- RSTs received before SYNs
- RSTs dropped due to no connection. Rapid increase in this variable might indicate that the
stale timeout for this cluster is too low. Any percentage greater than 1% of total packets forwarded
might indicate a problem.
- Total packets dropped
- Packets dropped due to no connection. Rapid increase in this variable might indicate that the
stale timeout for the ports on this cluster is too low. Any percentage greater than 1% of total packets
forwarded might indicate a problem.
- SYN on SYN for quiesced server
- The number of requests for new connections, where those new connections are the same as
connections already received for a server that is quiesced.
- KBytes transferred per second
- The number of kilobytes transferred in a one second interval.
- Connections per second
- The current number of connections per second for this cluster.
Configuration Settings
Edit any of the values on the Configuration Settings tab, then click Update Configuration.
- Default sticky time (seconds)
- The default sticky time for all future ports on this cluster.
Sticky time is used to create an affinity relationship between a client and a specific server.
When the sticky time has been exceeded, the client might be sent to a server different from the previous.
Sticky time can be overridden on a per-port basis. The default value is 0, meaning that the
port is not sticky. This can also be set at the executor level.
To enable SSL ID affinity, set the default sickytime to a non-zero number; add a new port
with content-based routing forwarding method protocol. To disable SSL ID affinity on the port, set the
stickytime for the port to zero.
- Default port stale timeout (seconds)
- The default number of seconds during which there can be no activity on a connection before that
connection is removed. This timeout can be overridden on a per-port basis.
The default for port 21 is 900; the default for port 23 is 32,000,000. The default value for
all other ports is 300 and can also be set at the executor level.
- Default port weight bound
- The default weight bound for all future ports on this cluster. It can be overridden on a per-port
basis. The default value is 20 and can also be set at the executor level.
- Maximum number of ports
- The maximum number of ports on this cluster. The default value is 8 and can also be set at the
executor level.
- Default maximum servers per port
- The default maximum number of servers per port on this cluster. It can be overridden on a per-port
basis. The default value is 32 and can also be set at the executor level.
- Default port protocol
- The default port type for all future ports on this cluster. It can be overridden on a per-port basis.
Possible values are TCP, UDP, or both protocols (TCP/UDP) and can also be set at
the executor level. The default value is
TCP/UDP.
- Shared bandwidth (KBytes)
- The level of bandwidth (kilobytes per second) to be shared at the cluster or executor level.
Sharing bandwidth at the cluster level allows one or more ports
to share a maximum amount of bandwidth across several ports (applications/protocols) within the same
cluster. Sharing bandwidth at the executor level allows one or more clusters within the entire
Dispatcher configuration to share a maximum amount of bandwidth. The default value is 0.
If the value is zero, then bandwidth cannot be shared.
Note: Specify a maximum shared bandwidth value that does not exceed the total
bandwidth (total server capacity) available.
- Primary host for the cluster
- The nonforwarding address of the primary host for the cluster in dotted-decimal format.
Proportions
Note: The weight of the active connections, plus the weight of the new connections, plus the weight
of advisor information, plus the weight of the system monitoring program information must total 100.
- Proportion given to active connections:
- A number from 0-100 representing the proportion of weight to be given to the active connections.
- Proportion given to new connections:
- A number from 0-100 representing the proportion of weight to be given to the new connections. The
default value is 50.
- Proportion given specific to the port:
- A number from 0-100 representing the proportion of weight to be given to the information coming
from an advisor about a port. The default value is 0.
- Proportion given to system metrics:
- A number from 0-100 representing the proportion of weight to be given to the information from the
system metrics, such as from metric server. The default value is 0.
- Sum of proportions (must be 100):
- The sum of the above proportions. This total must equal 100.
- List of system metrics
- Current list of metric values and their proportions
To remove a system metric, highlight the system metric in the list and click remove System Metric.
Lists
- List of Ports
- Current list of ports, the number of servers running on those ports and the port type (TCP, UDP or
TCP/UDP) which is chosen when the port is added to the server.
To remove a port, highlight the port in the list and click Remove.
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