pds-generate crashes when runs out of heap memory about mi-label

[jordanpadams]

@plawton-umd per our discussion, this may be an error in the MILabel logic, or a memory leak.

in the meantime, a workaround that may help get this working would be to increase your Java heap by updating the last line of pds-generate command-line script.

Before:

${JAVA_CMD} -jar ${GENERATE_JAR} "$@"

After:

"${JAVA_CMD}" -Xms2048m -Xmx4096m -jar ${GENERATE_JAR} "$@"

Depending upon how much available memory you have and what you are running on the server you are executing MILabel, you can can continue to multiply each of those numbers x2 until it stops failing. This is a temporary spike in the memory usage while the software runs, but Java garbage collection will clean it all up as soon as (or very very soon as after) the run completes.

let me know how this goes. we will add this to our backlog to investigate the issue further.

[jordanpadams]

@plawton-umd As a heads up, we have not had an opportunity to push the testing of this app to determine the guaranteed issue here, but we just fixed a potential memory leak in the code that may have been a cause for this.