[openstreetmap/openstreetmap-website] ActiveRecord::ConnectionTimeoutError (all pooled connections were in use) (#2437)

[nguyenhoangnhon]

Dear all,
When many users access in Openstreetmap, we get a following issue, Please help me fix this problem .
Thanks many .


ActiveRecord::ConnectionTimeoutError
could not obtain a connection from the pool within 5.000 seconds (waited 5.003 seconds); all pooled connections were in use

Extracted source (around line #201):

 msg = "could not obtain a connection from the pool within %0.3f seconds (waited %0.3f seconds); all pooled connections were in use" %
                  [timeout, elapsed]
                raise ConnectionTimeoutError, msg
              end
            end
          ensure


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