Memory leak
- Andrew Petro
- Brad Johnson
Owned by Andrew Petro
This page is a place to hang some documentation about the uPortal memory leak that seems to have been introduced between uP 2.0 and uP 2.1.
Showing the leak
A Rutgers graph
Free memory (as reported by the OS?). The big vertical jumps are JVM restarts.
Yale graphs
Daily
Weekly
Notice the decreasing trend: over time each GC results in less memory reclamation with the eventual result (takes > 1 week) of running out of memory. A slow memory leak. Early Sunday morning we take an outage for database maintenance and take that opportunity to restart the uPortal context, thereby restoring our free memory to baseline.