ToDo List Maintenance	Top

Shows the following information concerning each row of the ToDo List:

Item	Description
Id	LabVantage-assigned identifier (number) of the row.
Action	LabVantage Action awaiting execution. Click the icon to see the Action properties and values.
Queued Date	Date and time the Action was posted onto the ToDo List.
Due Date	Date and time the Action is due to be executed.
Status	Condition of the Action: Condition Description E An error has occurred during processing. S The Action is being processed. W The Action is waiting to be processed.
Errors	If the Status is Error, description of the error.

The buttons provide the following ToDo List functionality:

Performance Statistics	Top

Performance Statistics can be enabled/disabled using the Logging and Stats Options. This is a property in labvantageconfig.props (com.labvantage.sapphire.server.stats).

Statistics are provided for the following items that LabVantage has attempted to execute:

The following statistics are provided for each item that LabVantage processes in an attempt to execute (all times are in milliseconds):

System Monitor	Top

LabVantage takes standardized measurements to provide diagnostic information regarding various areas of internal functionality. The System Monitor shows the results of these metrics.

Certain LabVantage Components in the Application Server cache results they retrieve from the database (above). For example, the SDC Component uses a cache to hold retrieved SDC identifiers. Each object in this cache would correspond to an SDC. This monitor displays information about the size of these caches.

The "Reset Caches" button resets all values to zero and begins a new cache monitoring session.

Checking "Show Cache Contents" shows the contents.

Displays the number of rows within selected System tables.

Event objects are generated when events occur, the type being dependent on where the event is generated. These are passed into the Event Manager and matched against the set of plans defined in the system. The Event Objects tab shows details concerning the event objects that have been processed by the Event Manager, along with their status (Ignored, No Match, Fired).

The Event Plans tab shows details concerning the active Event Plans in the system and the activity in the plans.

This information shows activity of the pollers that are created on the LAM to poll the ToDo List. For an overview of the automation system, see Concepts of Actions → Action Processing.

Automation Server:

Pollers:

Displays available memory in the Java Virtual Machine (JVM) by executing the method specified below.

By default, LabVantage streams the license and environmental information listed here to VantageCare on every server restart. If running LabVantage 8.4.2 or higher, the client does not require a VantageCare public certificate when running under HTTPS, as the LabVantage application should connect to VantageCare without validating a locally installed certificate.

If you want this feature to be disabled, you must request an updated license key.

Threads	Top

To see a high-level glimpse into the application server behavior, navigate to System Admin > Monitoring > Threads. The Thread monitor page allows you to view the threads inside the application server and drill in to view their current stacktrace. This can be useful when trying to diagnose blocked or slow running thread.

If a thread is in a Runnable state, the "..." button can be clicked to vie the thread's current stack trace. The toolbar buttons perform the following functions:

User Connections	Top

The Connection Log shows the history of user connections. You can use the "Connection Log Retention Time" option in Housekeeping Settings (System Admin → System Configuration) to specify when the Connection Log is deleted.

"Current Connections" shows connections that are currently open (connected), with the currently logged-in user shown in green text. Active connections are shown in bold text.

This information is persisted in the ConnectionLog table:

"Close Connections" closes any selected connections.

"Recent Activity" shows connections created during the last seven days. Connections created prior to the last seven days are not shown even if the are active.

"Search" lets you query the list of connections by the query parameters in the left pane:

"Alert Users" lets you send a broadcast message to all (or some) connected Users. The broadcast can be sent to all connected Users or a selected subset by specifying "Selected Recipients". Clicking "OK" sends the message, which is immediately displayed as an alert on the target Users' browser.

"Timeout" is an event that clears a connection. Timeout is determined by the "Remove connections that have not been used for more than" property in System Configuration → Automation Options (the default is 3600 sec). Also in System Configuration → Automation Options is the "Timeout Poll Interval" property (default = 60 sec). A server-side "Session Expiry Notification" is sent to the Web browser one Timeout Poll Interval before the actual logoff occurs. It displays the "Session Expiry" dialog below, which lets you continue the session or logoff.

Clicking "Continue" resets the Timeout and closes the Session Expiry dialog in the current window and all other open windows of this session. Clicking "Logoff" redirects the current window and all other open windows of this session to the Logon page. If neither button is clicked, the browser will eventually receive a "Logoff Notification". This is sent to the browser when the session is marked as "ended" on the server. On receipt of this Notification, the browser redirects the current window and all other open windows of this session to the Logon page.

Trending	Top

"Trending" provides a graphical representation of trends regarding ToDo List Maintenance, Performance Statistics, System Monitor, User Connections, and JVM. Although Trending can aid with problem diagnosis or monitoring system stability, it is not intended to provide a view of how these system metrics change over time. Trending can display (in the time domain) up to two system parameters simultaneously. Select the parameters in the left frame. The second parameter you select is assigned to a separate Y-axis.

"Show Historical Trend" lets you view historical data:

"Show Historical Trend" provides options for:

"Show Live Trend" lets you view live data:

"Show Live Trend" provides these options for the application server / database combination defined by the current connection:

The System Trending page provides a means to determine whether there are any incremental slowdowns in performance. The database, To Do List, and Actions will execute a number of pings throughout the day. By examining these ping statistics, you can track some baseline system performance metrics.

1. Database
1. This executes a simple piece of SQL and measures its performance over time.
2. Slowdowns may indicate the database is overloaded or that the datasource pool has been "maxed out"
2. Action
1. This executes a beep action that simply writes an entry into the log file
2. Slowdowns here may indicate that the number of EJB threads is "maxed out"
3. ToDoList
1. This puts a "beep" action on the todolist and measures how long it take before the action gets executed
2. Slowdowns here may indicate that the todolist is becoming saturated
3. Performance times for this measurement are not 100% accurate but give an estimation as to how long the wait is.

Indexing and Searching	Top

"Indexing and Searching" is the configuration and maintenance page for System Search, a search engine for finding and accessing data in a LabVantage database. When data for SDIs are saved, the indexing engine compacts the text from each field and removes (English) stop words, then indexes the remaining text (using Lucene indexing technology), and links search terms back to the original SDI. The Search page then displays results and includes links to access the data. System Search finds text within SDIs (primary records and Attributes), Notes, and Attachments.

In order to use Indexing and Searching:

1.		At a minimum, enable the "Indexing Configuration" and "Searching Configuration " options in the Search Policy. If desired, change other properties from their default values.
2.		Restart the Application Server (you must do this in order for Indexing to begin).
3.		In the "Indexing and Searching" page toolbar, click "Start Indexing" on the toolbar: If you cannot see the Indexing data, click "Reset Index", wait a few seconds, then click "Index Pending" on the "Indexing" tab (below). These operations are available on this toolbar: Button Description Start/Stop Indexing Toggles indexing on and off. Reset Index Removes all items from the file-based index and all records from the IndexMap table, effectively deleting the Index. Refresh Stats Refreshes the Indexing and Searching statistics shown in those tabs.

Indexing Tab

The "Indexing" tab shows details concerning the index status, items being indexed, and time statistics. After starting the Indexing process as shown in Setup, newly added SDIs defined (by SDC) in the Search Policy will be indexed.

Statistics are shown in two tables:

These operations are available to provide a degree of control over the indexing and backlog data:

Searching Tab

The "Searching" tab shows details concerning search status, current searches, and time statistics.