This option is the maximum number of fetcher threads that will run during an update of a file system data source. These threads will perform any operation that involves interacting with the source file system e.g. listing files, fetching them etc.

Setting the key

Set this configuration key in the search package or data source configuration.

Use the configuration key editor to add or edit the filecopy.num_fetchers key, and set the value. This can be set to any valid Integer value.

Default value


This value can be overridden by the gather.slowdown.threads setting if a slowdown period has been specified.