Managing Ensemble Productions - InterSystems Documentation

Host Monitor
• Status — A summary of the more detailed fields provided in the bottom half of the Host Monitor page. The Status
field can have the values OK, Error, Retry, or Inactive.
OK means normal behavior; Retry means the item encountered a failure but is set up to retry the failed message. Error
means an error was reported somewhere in the activity. Inactive means that the item has been idle for longer than its
Inactivity Timeout setting, and may require diagnostic action.
The Status value is a snapshot, as of the present moment. If the item had an OK status but is now Inactive, only the
Inactive status is shown.
• Adapter State — Special information about the adapter associated with this item.
• Last Action — The date and time of the last action performed by this item.
• Elapsed Time — The number of seconds since this item last performed an activity.
• Queue — The number of items waiting on this item’s queue, at the current time. If the item does not have its own
queue, the field is blank.
• Count — The number of actions currently in the queue for this item. Count is the total number of messages queued
minus the total number of messages processed, all since the object was first instantiated. Count can become larger or
smaller from time to time, depending on how fast the actions are dequeued. The real significance of this number is that
you can check how busy the system is or determine if anything has clogged the dequeue process. Problems exist if the
number is large.
Actions are counted differently depending on the item:
Item
Actor
Business
Service
Business
Process
Business
Operation
Actions in Count
The number of new business processes
(using the actor pool) that have been started.
The number of request messages received
by the service from external systems.
The number of new business processes
(using private job pools) that have been
started.
The number of response messages received
by the operation from external systems.
Actions Not Counted
How many messages the process has sent
or received from items inside Ensemble.
How many request messages the service
has sent to items inside Ensemble.
How many messages the process has sent
or received from items inside Ensemble.
How many external responses have been
relayed back to items inside Ensemble.
In each row, the background color indicates the item’s Status as follows:
• Red — Error
• Yellow — Inactive
• Light gray — Stopped
• Orange — There are more than 100 messages waiting in this item’s queue
• White, with regular text — These items are OK
• White, with bold text — These items are OK and have been active within the last minute
Text style indicates the item’s Status as follows:
• Bold text — Items with ElapsedTime less than one minute.
• Dimmed text — Items with ElapsedTime greater than one hour.
96 Managing Ensemble Productions