stillalex commented on code in PR #1243:
URL: https://github.com/apache/solr/pull/1243#discussion_r1058540783
##########
solr/core/src/java/org/apache/solr/core/SolrCores.java:
##########
@@ -99,37 +85,34 @@ protected void close() {
waitForLoadingCoresToFinish(30 * 1000);
Collection<SolrCore> coreList = new ArrayList<>();
- // Release transient core cache.
- synchronized (modifyLock) {
- if (transientSolrCoreCacheFactory != null) {
- getTransientCacheHandler().close();
- }
- }
-
// It might be possible for one of the cores to move from one list to
another while we're
// closing them. So loop through the lists until they're all empty. In
particular, the core
// could have moved from the transient list to the pendingCloses list.
- do {
- coreList.clear();
+ while (true) {
+
synchronized (modifyLock) {
- // make a copy of the cores then clear the map so the core isn't
handed out to a request
- // again
- coreList.addAll(cores.values());
- cores.clear();
- if (transientSolrCoreCacheFactory != null) {
- coreList.addAll(getTransientCacheHandler().prepareForShutdown());
+ // remove all loaded cores; add to our working list.
+ for (String name : getLoadedCoreNames()) {
+ final var core = remove(name);
+ if (core != null) {
Review Comment:
not sure I follow the null check here. both 'getLoadedCoreNames' and
'remove' happen under lock, what is the scenario where this would be null?
also, please reconsider the use of dedicated methods for basically 'keySet' and
'remove' with extra locking, it is adding a bunch of complexity to this code
that is not needed.
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