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UDC
The Usage Data Collector (UDC) is included in the packages available for download from the Eclipse Downloads page. The UDC collects information about how individuals are using the Eclipse platform. This information is periodically uploaded to servers hosted by The Eclipse Foundation. The intent is to use this data to help committers and organizations better understand how developers are using Eclipse.
More information:
- What Gets Captured in gory detail;
- How is Usage Data Stored on Eclipse Foundation Servers;
- Filtered Usage Data is available for general consumption.
Turn off the Usage Data Collection
The Usage Data Collection can be disabled in the preferences. This is a per-workspace setting. Due to a bug Eclipse may ask you about Usage Data Collection every few days even if it's disabled. To permanently turn off all Usage Data Collection delete all files named "org.eclipse.epp.usagedata.*" from the "plugins" directory, located in your Eclipse installation directory.