[GitHub] [doris] xinyiZzz commented on a diff in pull request #19622: [enhence](memory) gc inverted index cache when there is not enough memory

["xinyiZzz (via GitHub)" <gi...@apache.org>]

xinyiZzz commented on code in PR #19622:
URL: https://github.com/apache/doris/pull/19622#discussion_r1195242186


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be/src/olap/rowset/segment_v2/inverted_index_cache.cpp:
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@@ -179,6 +179,19 @@ Status InvertedIndexSearcherCache::erase(const std::string& index_file_path) {
     return Status::OK();
 }
 
+void InvertedIndexSearcherCache::prune() {
+    if (_cache) {
+        _cache->prune();

Review Comment:
   `prune()` will free the entire cache, expecting it to be like `segment cache`,
   During minor gc, prune_if evict the cache value with last_visit_time > N min
   During full gc, prune evict entire cache



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