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Another possible strategy would be to wrap those low-level DBI calls in logic that specifically catches error #2000, and responds by sleeping for a short-but-random period of time and trying the request again a certain number of times before giving up.   This becomes a targeted response to a specific error condition, applied only when DBI informs you that the error in question just did occur.

sub doit { my $dbh = shift; # IF ASYNC ERROR OCCURS, RETRY THIS MANY TIMES for my $retry (1..10) { $dbh->execute(); # LEAVE NOW IF THE ERROR (IF ANY) IS OTHER THAN "ASYNC" return $dbh->err unless $dbh->err == 2000; # ASYNC ERROR ... TAKE A RANDOM SHORT NAP sleep(100*rand()); } # OH DEAR ... die "asynchronous I/O error"; }
Something like that ...


In reply to Re: Mysql handle not in asynchronous mode by sundialsvc4
in thread Mysql handle not in asynchronous mode by punkish

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