freemandealer commented on code in PR #64496:
URL: https://github.com/apache/doris/pull/64496#discussion_r3441309857
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be/src/io/cache/block_file_cache.cpp:
##########
@@ -2189,6 +2140,154 @@ void BlockFileCache::run_background_ttl_gc() {
}
}
+size_t BlockFileCache::repair_duplicate_ttl_dirs_once() {
+ if (!config::enable_file_cache_ttl_repair_checker ||
+ _storage->get_type() != FileCacheStorageType::DISK ||
!_async_open_done) {
+ return 0;
+ }
+
+ const int64_t max_scan_prefix_dirs = std::max<int64_t>(
+ 0,
config::file_cache_ttl_repair_checker_max_scan_prefix_dirs_per_round);
+ if (max_scan_prefix_dirs == 0) {
+ return 0;
+ }
+
+ int64_t duration_ns = 0;
+ std::vector<FileCacheDuplicateKeyDirs> duplicate_dirs;
+ size_t next_prefix_index = _ttl_repair_checker_next_prefix_index;
+ size_t scanned_prefix_dirs = 0;
+ {
+ SCOPED_RAW_TIMER(&duration_ns);
+ auto st =
_storage->list_duplicate_key_dirs(_ttl_repair_checker_next_prefix_index,
Review Comment:
This is not a frequent operation. It will be limited to 1000 directories
once in a while. I test it locally, it will be completed in 30ms.
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