leosunli commented on a change in pull request #977: (HDFS-14541)when
evictableMmapped or evictable size is zero, do not throw NoSuchE…
URL: https://github.com/apache/hadoop/pull/977#discussion_r296693866
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File path:
hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/shortcircuit/ShortCircuitCache.java
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@@ -533,23 +523,15 @@ private void trimEvictionMaps() {
long now = Time.monotonicNow();
demoteOldEvictableMmaped(now);
- while (true) {
- long evictableSize = evictable.size();
- long evictableMmappedSize = evictableMmapped.size();
- if (evictableSize + evictableMmappedSize <= maxTotalSize) {
- return;
- }
+ while (evictable.size() + evictableMmapped.size() > maxTotalSize) {
ShortCircuitReplica replica;
- try {
- if (evictableSize == 0) {
- replica = (ShortCircuitReplica)evictableMmapped.get(evictableMmapped
- .firstKey());
- } else {
- replica = (ShortCircuitReplica)evictable.get(evictable.firstKey());
- }
- } catch (NoSuchElementException e) {
- break;
+ if (evictable.size() == 0) {
Review comment:
@goiri Thanks for your comments . I have updated this patch. Could you have
time to help review this patch? Thank you.
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