Improving Lifecycle Query Engine performance

As an administrator, you might need to address performance issues that are not related to any of the query service or Lifecycle Query Engine node configurations. In these situations, you can review and update several advanced properties.
Important: Use caution when changing any of the advanced properties. It is not common to change these settings, and changes might adversely affect the system performance.

Procedure

  1. On the Lifecycle Query Engine Administration page, under Configuration, click Advanced Properties. By default, you only see a few of the properties.

    Screen capture of the Advanced Properties page with only a few properties listed.

    • Connection Timeout: The timeout value in seconds for the connection between Lifecycle Query Engine and the data source. The default is 60.
    • Socket Timeout: The timeout value in seconds between the establishment of a connection between Lifecycle Query Engine and the data source, and the receipt of any data from that source. The default is 60.
    • Reload Log Properties: Logging functions in the log4j.properties file that are used for debugging. The logging functions are disabled by default. You can edit this properties file to enable the logging functions and then reload the file to begin logging.
  2. To see a more comprehensive list of properties, click Show Internal. For more information about each property, see LQE Properties page in the Jazz.net wiki.
    Note: You can undo any changes that you make by clicking Restore Defaults.

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