yiguolei commented on code in PR #14742:
URL: https://github.com/apache/doris/pull/14742#discussion_r1037870333
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be/src/olap/tablet_schema_cache.h:
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@@ -49,6 +50,9 @@ class TabletSchemaCache {
pb.ParseFromString(key);
tablet_schema_ptr->init_from_pb(pb);
_cache[key] = tablet_schema_ptr;
+ DorisMetrics::instance()->tablet_schema_cache_count->increment(1);
+
DorisMetrics::instance()->tablet_schema_cache_memory_bytes->increment(
+ tablet_schema_ptr->mem_size());
Review Comment:
mem_size method is not accurate. And I find it is very tick.
std::vector<TabletColumn> _cols;
std::vector<TabletIndex> _indexes;
std::unordered_map<std::string, int32_t> _field_name_to_index;
std::unordered_map<int32_t, int32_t> _field_id_to_index;
TableSchema has a lot of properties.
I think you could add a property in TabletSchema and using
scoped_mem_tracker to set its size during init_from_pb.
And you could remove all mem_size method. I find it is useless before.
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