Maximum number of event summaries per connection

By default, a maximum of 15 summary requests can be enabled concurrently on a single client connection. You can reset this maximum by specifying the max_summaries parameter.

The configuration file entry for this parameter is:

max_summaries value

where value is the maximum number of event summaries that may be active on a client connection. The maximum value is 1024. The minimum value is one.

You must shut down Monitor Server and restart it for this change to take effect.

Various Monitor Viewer monitors in Sybase Central and Historical Server views cause event summaries to be created in Monitor Server. The more windows or views that are active on a given client connection, the more summaries are likely to be created. The following messages received by a client indicates that the maximum summaries were reached:

Unable to retrieve data
Unable to obtain initial information
Maximum number of concurrent summaries already enabled

Table 2-2 shows which client requests cause event summaries. This information might help you to estimate a reasonable value for max_summaries for your site. The right column indicates which windows or data items have the potential to create summaries, but it does not indicate an actual number of summaries. For example, Some Monitor Viewer monitors might consume multiple summaries. Depending on how data items are combined in views, some data items in Historical Server or Monitor Client Library might share summaries.

**Table 2-2: Client requests resulting in event summaries**
Client type	Requests resulting in event summaries
Monitor Viewer monitors	Cache Monitor Process Activity Monitor Object Page I/O Monitor Stored Procedure Activity Monitor Process Current SQL Statement Monitor
Historical Server data items	all “current statement” data items CPU Percent CPU Time Lock Count Locks Granted After Wait Locks Granted Immediately Locks Not Granted Logical Page Reads Page Hit Percent Page I/O Page Writes Physical Page Reads Procedure Elapsed Time Procedure Execution Count
Monitor Client Library data items	all “current statement” data items SMC_NAME_CPU_PCT SMC_NAME_CPU_TIME SMC_NAME_LOCK_CNT SMC_NAME_LOCKS_GRANTED_AFTER_ WAIT SMC_NAME_LOCKS_GRANTED_ IMMEDIATELY SMC_NAME_LOCKS_NOT_GRANTED SMC_NAME_PAGE_HIT_PCT SMC_NAME_PAGE_IO SMC_NAME_PAGE_LOGICAL_READ SMC_NAME_PAGE_PHYSICAL_READ SMC_NAME_PAGE_WRITE SMC_NAME_STP_ELAPSED_TIME SMC_NAME_STP_NUM_TIMES_EXECUTED