markap14 commented on a change in pull request #4950:
URL: https://github.com/apache/nifi/pull/4950#discussion_r608121946
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File path:
nifi-nar-bundles/nifi-framework-bundle/nifi-stateless-bundle/nifi-stateless-bootstrap/src/main/java/org/apache/nifi/stateless/bootstrap/StatelessBootstrap.java
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@@ -98,7 +99,12 @@ public static StatelessBootstrap bootstrap(final
StatelessEngineConfiguration en
// Unpack NARs
final long unpackStart = System.currentTimeMillis();
final Predicate<BundleCoordinate> narFilter = coordinate -> true;
- NarUnpacker.unpackNars(systemBundle, frameworkWorkingDir,
extensionsWorkingDir, null, narDirectories, false, false, false, narFilter);
+ NarUnpackLock.lock();
Review comment:
No, each process that needs the nar will download it for itself. They
download using a temporary filename. Only one task will manage to rename its
download to the 'final' name. Others will delete their temporary files. It's
not efficient, but it was a simple/straight-forward solution that can be
improved upon later.
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