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?





namespace DB
{
namespace ErrorCodes
{
    extern const int LOGICAL_ERROR;
    extern const int CANNOT_SET_THREAD_PRIORITY;
}
void ThreadStatus::applyQuerySettings()
{
    auto query_context_ptr = query_context.lock();
    assert(query_context_ptr);
    const Settings & settings = query_context_ptr->getSettingsRef();
    query_id = query_context_ptr->getCurrentQueryId();
    initQueryProfiler();
    untracked_memory_limit = settings.max_untracked_memory;
    if (settings.memory_profiler_step && settings.memory_profiler_step < static_cast<UInt64>(untracked_memory_limit))
        untracked_memory_limit = settings.memory_profiler_step;
#if defined(OS_LINUX)
    
    Int32 new_os_thread_priority = settings.os_thread_priority;
    if (new_os_thread_priority && hasLinuxCapability(CAP_SYS_NICE))
    {
        LOG_TRACE(log, "Setting nice to {}", new_os_thread_priority);
        if (0 != setpriority(PRIO_PROCESS, thread_id, new_os_thread_priority))
            throwFromErrno("Cannot 'setpriority'", ErrorCodes::CANNOT_SET_THREAD_PRIORITY);
        os_thread_priority = new_os_thread_priority;
    }
#endif
}
void ThreadStatus::attachQueryContext(ContextPtr query_context_)