agresch commented on a change in pull request #3226: [STORM-3583] Handle
exceptions when AsyncLocalizer tries to get local resources
URL: https://github.com/apache/storm/pull/3226#discussion_r391672288
##########
File path:
storm-server/src/main/java/org/apache/storm/localizer/AsyncLocalizer.java
##########
@@ -456,7 +457,21 @@ public void releaseSlotFor(LocalAssignment assignment,
int port) throws IOExcept
topoConfBlob.removeReference(pna);
}
- for (LocalResource lr : getLocalResources(pna)) {
+ List<LocalResource> localResources = null;
+ try {
+ // Precondition1: Base blob stormconf.ser and stormcode.ser have
been localized
+ // Precondition2: Both these two blob files are fully downloaded
and proper permission been set
+ localResources = getLocalResources(pna);
+ } catch (FileNotFoundException fnfException) {
+ LOG.warn("Local base blobs have not been downloaded yet. "
Review comment:
can we add the pna to this message and the IOException error? What is the
side effect of not releasing this if there's a race condition? Could the
localizer then be updating this file continually?
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