gavinchou commented on code in PR #55342:
URL: https://github.com/apache/doris/pull/55342#discussion_r2306102605
##########
be/src/io/cache/cached_remote_file_reader.cpp:
##########
@@ -48,6 +63,129 @@ bvar::Adder<uint64_t>
g_skip_cache_sum("cached_remote_reader_skip_cache_sum");
bvar::Adder<uint64_t> g_skip_local_cache_io_sum_bytes(
"cached_remote_reader_skip_local_cache_io_sum_bytes");
+// no custom launcher needed when using std::thread
+
+// Controller to race two fetchers (e.g., S3 vs peer BE) and signal on first
success
+struct FetchRangeCntl : std::enable_shared_from_this<FetchRangeCntl> {
Review Comment:
ηδΈ cloud_tablet_mgr.cpp ιη class SingleFlight
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