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Re: Mysql 5.5 memory issues.
Posted by: Peter Brawley
Date: October 02, 2020 12:21PM

5.5 is obsolete and very near EOL. You need to upgrade, first to 5.6, then to 5.7, then to InnoDB, and as soon as possible to InnoDB.

So we can answer your question, please ...

(i) post the result of ...

select engine,data,indexes,total
from (
  select 
    ifnull(engine,'TOTALS') as engine, 
    concat(data,' GB') as data, 
    concat(indexes,' GB') as indexes, 
    concat(tot,' GB') as total,
    if(engine is null,-1,tot) as ord
  from (
    select   
      engine,  
      round( sum(data_length)/1024/1024/1024, 2 ) as data,  
      round( sum(index_length)/1024/1024/1024, 2 ) as indexes,  
      round( sum(data_length+index_length)/1024/1024/1024, 2 ) as tot
    from information_schema.tables
    where engine is not null and engine not in('information_schema','performance_schema')
    group by engine with rollup
  ) sums
) list
order by list.ord desc;

(ii) post the results of running these queries in the mysql client program ...

show variables;

show global status;

(iii) post the result of ...

free -m

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October 02, 2020 11:26AM
Re: Mysql 5.5 memory issues.
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