Review Foundry Review Engine User Manual CONFIGURATION -- URL Verification

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• CONFIGURATION
• Verify URLs
• General URL Verification Settings

CONFIGURATION

Verify URLs

General URL Verification Settings

• verify_enable_resolver
  Example: Yes
  On some systems, the perl built-in function which resolves host addresses will hang and timeout if it is given a URL for a host that does not exist. To avoid these timeouts--which slow the verification process, but do not kill it--the Perl Net::DNS::Resolver class has been found to be useful. The timeouts can be shortened considerably, speeding the process along when a non-resolvable host is encountered. However, if the URLs in your tables are kept up to date, use of the module should offer little speed improvement.
• verify_verbosity_high
  Example: Yes
  Set this to Yes for maximum logging output.
• verify_staggered_block_size
  Example: 50
  This represents the maximum number of things (items, members or suppliers) which are URL-verified per page of browser output. Keep this number low if your server is subject to timeouts. You might need to restrict this to as few as 10 if you encounter timeout problems.
• verify_response_timeout
  Example: 10
  URLs are processed in small batches. This parameter represents the maximum time (in seconds) to wait for responses from a batch of requests before discarding the requests and moving on to the next batch.
• verify_redirect_limit
  Example: 3
  URLs which result in a 300-series status code (such as a 302 Not Found response) can be followed if a new location for the document is specified by the web server responsible for the document. This parameter represents the maximum number of times a URL may be followed to a new location.
• verify_multiple_local_ips
  Example: No
  This advanced feature allows the program to attempt multiple IP bindings when verifying URLs. This adds speed to the process. If you are on a dedicated machine that provides multiple local addresses for binding purposes (the /sbin/ifconfig utility will be queried for local socket addresses) then multiple non-blocking sockets can be established and web pages retrieved in parallel. Leave this feature switched OFF if it seems to produce problems.

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