EmmyMiao87 commented on a change in pull request #7198:
URL: https://github.com/apache/incubator-doris/pull/7198#discussion_r763937542
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File path: be/src/common/config.h
##########
@@ -601,6 +604,12 @@ CONF_mInt32(remote_storage_read_buffer_mb, "16");
// the level equal or lower than mem_tracker_level will show in web page
CONF_Int16(mem_tracker_level, "0");
+// The minimum length when TCMalloc Hook consumes/releases MemTracker, consume
size
+// smaller than this value will continue to accumulate. specified as number of
bytes.
+// Decreasing this value will increase the frequency of consume/release.
+// Increasing this value will cause MemTracker statistics to be inaccurate.
+CONF_mInt32(mem_tracker_consume_min_size_mbytes, "1048576");
Review comment:
1048576 mb ？？
And the default 4M is written in your document.
Which is the correct number ?
##########
File path: be/src/runtime/thread_mem_tracker.h
##########
@@ -0,0 +1,80 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements. See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership. The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License. You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied. See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+#pragma once
+
+#include <fmt/format.h>
+
+#include "runtime/exec_env.h"
+#include "runtime/fragment_mgr.h"
+#include "runtime/mem_tracker.h"
+
+namespace doris {
+
+// TCMalloc new/delete Hook is counted in the memory_tracker of the current
thread
+class ThreadMemTracker {
+public:
+ ThreadMemTracker() :
_global_hook_tracker(MemTracker::GetGlobalHookTracker()) {}
+ ~ThreadMemTracker() { detach_query(); }
+
+ // After attach, the current thread TCMalloc Hook starts to
consume/release query mem_tracker
+ void attach_query(const std::string& query_id, const TUniqueId&
fragment_instance_id);
+
+ void detach_query();
+
+ void update_query_mem_tracker(std::weak_ptr<MemTracker> mem_tracker);
+
+ void query_mem_limit_exceeded(int64_t mem_usage);
+
+ void global_mem_limit_exceeded(int64_t mem_usage);
+
+ // Note that, If call the memory allocation operation in TCMalloc
new/delete Hook,
+ // such as calling LOG/iostream/sstream/stringstream/etc. related methods,
+ // must increase the control to avoid entering infinite recursion,
otherwise it may cause crash or stuck,
+ void consume();
+
+ void try_consume(int64_t size);
+
+ void stop_mem_tracker() { _stop_mem_tracker = true; }
+
+private:
+ TUniqueId _fragment_instance_id;
+
+ std::weak_ptr<MemTracker> _query_mem_tracker;
+ std::shared_ptr<MemTracker> _global_hook_tracker = nullptr;
+
+ // Consume size smaller than _tracker_consume_min_size will continue to
accumulate
+ // to avoid frequent calls to consume/release of MemTracker.
+ int64_t _untracked_mem = 0;
+ int64_t _tracker_consume_min_size =
config::mem_tracker_consume_min_size_mbytes;
Review comment:
the `_tracker_consume_min_size` may be consume or release.
So the name is '_untracked_mem_min_size'. Is it better ?
##########
File path: be/src/runtime/thread_context.h
##########
@@ -0,0 +1,118 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements. See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership. The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License. You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied. See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+#pragma once
+
+#include <string>
+#include <thread>
+
+#include "gen_cpp/Types_types.h"
+#include "runtime/thread_mem_tracker.h"
+
+namespace doris {
+
+// The thread context saves some info about a working thread.
+// 2 requried info:
+// 1. thread_id: Current thread id, Auto generated.
+// 2. type: The type is a enum value indicating which type of task
current thread is running.
+// For example: QUERY, LOAD, COMPACTION, ...
+// 3. task id: A unique id to identify this task. maybe query id, load
job id, etc.
+//
+// There may be other optional info to be added later.
+class ThreadContext {
+public:
+ enum TaskType {
+ UNKNOWN = 0,
+ QUERY = 1,
+ LOAD = 2,
+ COMPACTION = 3
+ // to be added ...
+ };
+
+public:
+ ThreadContext() : _thread_id(std::this_thread::get_id()),
_type(TaskType::UNKNOWN) {
+ _thread_mem_tracker.reset(new ThreadMemTracker());
+ }
+ ~ThreadContext() {}
+
+ void attach(const TaskType& type, const std::string& task_id,
+ const TUniqueId& fragment_instance_id = TUniqueId()) {
Review comment:
Like the compaction thread, there is no fragment instance id. Do I need
to add a fake?
Isn't this value an optional?
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