gavinchou commented on code in PR #49882:
URL: https://github.com/apache/doris/pull/49882#discussion_r2033158446


##########
be/src/cloud/cloud_storage_engine.cpp:
##########
@@ -680,7 +661,27 @@ Status 
CloudStorageEngine::_submit_cumulative_compaction_task(const CloudTabletS
             tablet->last_cumu_no_suitable_version_ms = 0;
         }
     };
-    st = _cumu_compaction_thread_pool->submit_func([=, this, compaction = 
std::move(compaction)]() {
+    Status st = Status::OK();
+    st = _cumu_compaction_thread_pool->submit_func([=, this]() {
+        auto compaction = std::make_shared<CloudCumulativeCompaction>(*this, 
tablet);
+        auto st = compaction->prepare_compact();
+        if (!st.ok()) {
+            long now = 
duration_cast<milliseconds>(system_clock::now().time_since_epoch()).count();
+            if (st.is<ErrorCode::CUMULATIVE_NO_SUITABLE_VERSION>() &&
+                st.msg() != "_last_delete_version.first not equal to -1") {
+                // Backoff strategy if no suitable version
+                tablet->last_cumu_no_suitable_version_ms = now;
+            }
+            tablet->set_last_cumu_compaction_failure_time(now);

Review Comment:
   LOG if st is not suitable



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