We use clickhosue version 21.12.2.17 before.It works well

But we found that after upgrade to 22.3.3, the memory of clickhouse used grow up daily .

I don't know if this is a memory overflow

here is the promethues metric 'ClickHouseMetrics_MemoryTracking'  duration last 15days

![image](https://user-images.githubusercontent.com/8294900/163744096-80270f73-becd-47ce-91b7-c6a96f13c1b6.png)

and I restarted cknode1 at 4.14 ,you can see it come down and rising again.

And here is some sql and result I have run for diagnosis。

![image](https://user-images.githubusercontent.com/8294900/163744418-251c86d8-832c-4aff-aa1a-6e565d47d196.png)

![image](https://user-images.githubusercontent.com/8294900/163744455-73813554-784a-4df6-803e-5ef49dbf1776.png)

![image](https://user-images.githubusercontent.com/8294900/163744529-50c4e359-feb7-4499-9449-0efc1c75942f.png)

![image](https://user-images.githubusercontent.com/8294900/163744587-c51e3ba3-6925-4591-b15d-bb0e0262af8c.png)

we use dict and MaterializedView . no living view.

we have tried  'system drop mark cache '  and change 'max_bytes_before_external_group_by' to '6g'.Not work

Is there anyting else  I can do?





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    std::shared_ptr<OpenTelemetrySpanLog> opentelemetry_span_log;
    auto query_context_ptr = query_context.lock();
    if (thread_trace_context.trace_id != UUID() && query_context_ptr)
    {
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    }
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        span.span_id = thread_trace_context.span_id;
        assert(query_context_ptr);
        span.parent_span_id = query_context_ptr->query_trace_context.span_id;
        span.operation_name = getThreadName();
        span.start_time_us = query_start_time_microseconds;
        span.finish_time_us =
            std::chrono::duration_cast<std::chrono::microseconds>(
                std::chrono::system_clock::now().time_since_epoch()).count();