Names and locations of cache files
Data Insight generates cache files on the Indexer node at the time of installation or upgrade.
Data Insight creates the following persistent activity index files in each index folder for a share:
The persistent cache files contain pre-calculated summary information about users and their activity on the files and folders during the time period configured for advanced analytics. The indexer process uses the information in these files to expedite the process of servicing queries related to activity, reports, and Social Network Graph.
Each index folder for a share may also contain the following temporary files:
Table:
|
Name
|
Description |
|
file-activity.idx.<timestamp>.<version>
dir-activity.idx.mmap.<timestamp>.<version>
|
Uncompressed versions of the file-activity.idx.<timestamp> and dir-activity.idx.<timestamp> files.
Since the activity index files are stored in a compressed form on disk, Data Insight creates the uncompressed files when any process attempts to read the activity index. The files remain on disk while the process is reading the files, and are deleted when the process finishes reading the activity index.
|
|
rolldir-activity.idx.<timestamp>.<version>
|
Temporary file created when Data Insight rolls up the activity count for folders. The file remains on the disk while the process is reading the files, and are deleted when the process finishes reading the activity index. |
|
file-activity.idx.tmp.<timestamp>.<version>
file-activity.idx.attr.<timestamp>.<version>
dir-activity.idx.attr.<timestamp>.<version>
dir-activity.idx.attr.<timestamp>.<version>
|
Temporary files created when Data Insight calculates owners for files and folders. The files remain on disk while the query or report processes the share. Data Insight deletes these files once the share is processed. |
If the process that creates these temporary files stops unexpectedly, Data Insight deletes these files during the next run of the IndexWriterJob or the ActivityIndexJob processes on the shares.
