Source Monitor Data

Source Monitor Data contains statistics on the Cache and status data on sources locally and upstream.

Source Monitor is itself a source that uses Dataworks Enterprise to publish statistics on the cache and on other sources. Sources monitored can be those local and upstream. Upstream caches running a Source Monitor can also have their caches monitored/investigated via a Source monitor downstream. Statistics on the local cache state include number of messages, shared memory status, queue count etc.

Information on a source includes

  • its network path
  • whether its up or down
  • number of times the source has been down
  • last time the source went down or came up

    Requests can also be made against source to ensure that it is responding resonably.

    Dataworks Enterprise Component

    Source Monitor

    Request Syntax

    There are two instruments that can be requested, SOURCE and STATS. STATS provides statistics information on the cache. SOURCES instrument contains the following fields;

    Field Name

    Description

    activesources

    Total number of sources active

    starttime

    Source monitor start time

    sourcecount

    Total number of sources

    source[0.n]

    Name of the source

    [source name]_downcount

    Number of times the source has been down

    [source name]_path

    Routing information. Names the host the source is originating from and intermediate machines

    [source name]_status

    If the source is up or down

    [source name]_statustime

    Date and time the source came up or went down

    versions$

    list of component versions (nt, ado, rtcache)

    config$

    enum of Dataworks Enterprise config database

    drives$

    list drives on this computer

    drive$c

    details of drive

    Command RESET will remove the list of sources that are marked 'Down' from its list. This allows the list to be cleared of sources that have been removed from the machine or unlikely to start again.