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?





break;
                }
                else if (errno == EINTR)
                {
                    
                    continue;
                }
                else
                {
                    ProfileEvents::increment(ProfileEvents::ReadBufferFromFileDescriptorReadFailed);
                    promise.set_exception(std::make_exception_ptr(ErrnoException(
                        fmt::format("Cannot read from file {}, {}", fd, errnoToString()),
                        ErrorCodes::CANNOT_READ_FROM_FILE_DESCRIPTOR, errno)));
                    return future;
                }
            }
            else
            {
                bytes_read += res;
                __msan_unpoison(request.buf, res);
            }
        }
        if (bytes_read)
        {
            
            
            
            
            watch.stop();