zentol commented on a change in pull request #14777:
URL: https://github.com/apache/flink/pull/14777#discussion_r566823679
##########
File path:
flink-runtime-web/src/main/java/org/apache/flink/runtime/webmonitor/handlers/JarRunHandler.java
##########
@@ -103,6 +103,11 @@ public JarRunHandler(
executor)
.handle(
(jobIds, throwable) -> {
+ try {
+ program.deleteExtractedLibraries();
Review comment:
Now whether they are actually deleted depends a bit on when the JVM
executes the delete calls. If the ClassLoader is still around at that time,
then the deletion may in fact fail.
Explicitly closing the ClassLoader in the PackagedProgram (which
unfortunately leaks into the JobGraph...) is a separate issue (see FLINK-9844).
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