Hello colleagues.

 

Occasionally our EPrints suffers the “too many connections” MySQL connection error.  In the past when EPrints has suffered this error my assumption has been that there is a query hanging which then has a knock on effect on other queries as they can’t write to a table.  We currently have max_connections set to 300 (which seems like a lot) but I can observe from previous chatter on the list that some go up to 1000.  I was therefore wondering what the community considered to be an appropriate connection limit?  Given all the traffic I can observe it is conceivable – however unlikely - that 300 is insufficient.  Have others observed something similar?

 

Thanks in advance!

George

 

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George Macgregor

Information Services Directorate | University of Strathclyde

Curran Building | 101 St James Road

Glasgow G4 ONS

Tel: 0141 548 3496

Email: george.macgregor@strath.ac.uk

Web: http://personal.strath.ac.uk/george.macgregor/

Twitter: @g3om4c

orcid.org/0000-0002-8482-3973
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