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https://issues.apache.org/jira/browse/SLING-7544?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16408061#comment-16408061
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ASF GitHub Bot commented on SLING-7544:
---------------------------------------
DominikSuess commented on a change in pull request #5: SLING-7544 - improving
optimized alias lookup to not block during int…
URL:
https://github.com/apache/sling-org-apache-sling-resourceresolver/pull/5#discussion_r176097092
##########
File path:
src/main/java/org/apache/sling/resourceresolver/impl/mapping/MapEntries.java
##########
@@ -189,10 +192,15 @@ protected void doInit() {
final Map<String, List<MapEntry>> newResolveMapsMap = new
ConcurrentHashMap<>();
+ isAliasMapInitialized = false;
//optimization made in SLING-2521
if (this.factory.isOptimizeAliasResolutionEnabled()) {
- final Map<String, Map<String, String>> aliasMap =
this.loadAliases(resolver);
- this.aliasMap = aliasMap;
+ new Thread(new Runnable(){
Review comment:
@rombert - the thread at the moment would afair simply complete - certainly
quickly starting and stopping would let threads pile up - so I'll capture the
thread reference and interrupt in close() while making the class AutoClosable
(everything else seems to be overly complicated for a rather virtual case).
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> Make optimized alias lookup non-blocking
> ----------------------------------------
>
> Key: SLING-7544
> URL: https://issues.apache.org/jira/browse/SLING-7544
> Project: Sling
> Issue Type: Improvement
> Components: ResourceResolver
> Affects Versions: Resource Resolver 1.5.36
> Reporter: Dominik Süß
> Priority: Major
>
> The implementation of optimized alias lookup as introduced with SLING-2521
> blocks CommonResourceResolver activation while loading aliases to fillup the
> aliasmap. In case a corresponding index is not present yet this can lead to
> full tree traversal while indexing is doing the same in the background.
> The proposed improvements are:
> * making loading of the aliasmap happen asynchronously
> * only use optimized handling as soon as aliasmap is built
> * wait for non traversal index (optional - forced by default, can be turned
> off for small datasets)
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