The Tar PM Scan tool allows you to view the transactions within the Tar Persistence Manager's tar files at a low level. Viewing such transactions helps in analyzing unusual repository growth issues where the disk usage is growing rapidly.
You can access the Tar PM Scan tool directly from a web browser at http://<host>:<port>/system/console/tarscan
To scan a tar file, do the following:
- Select a tar file in the Select Tar File pop-up menu.
- Click Scan.
- Click OK in the warning dialog box. The system scans the tar file and outputs the contents to the screen.
Note:
It is often most useful to analyze the contents of the tar file with the highest id number.
If the scan is working properly, after you click Scan a message similar to this one appears:
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Once the scan is partially completed, you see a table like the one below. It shows the path that changed, the size of the node, and the node's properties and children.
- The tool currently uses a large amount of memory and CPU to generate the listing of the tar file. Use it with caution, especially in production environments.
- If the tar file is large, the scan output can crash your browser, because all paths in the tar file are listed in the web console user interface.
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