Exception message: Unexpected packet Data type (expect DT_SEXP)
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Hi. I'm getting the error above (and below) when retrieving a large result set from a MySQL database. I do not have this error when using RStudio, or when retrieving smaller amounts of data from the the database server.
Fatal error: Uncaught exception 'Sentiweb\Rserve\Exception' with message 'Unexpected packet Data type (expect DT_SEXP)' in ..cturbelin/rserve-php/src/Connection.php:258 Stack trace:
#0 /..cturbelin/rserve-php/src/Connection.php(314): Sentiweb\Rserve\Connection->parseResponse('J\x98\xB0l\x01\x00\x00\x00\xD0\x90\xB0l\x01\x00\x00...', NULL)
#1 ..marketplace_targets.php(79): Sentiweb\Rserve\Connection->evalString('x <- dbFetch(db...')
I wonder if the problem is similar to this issue which mentions something about large packets:
albertosantini/node-rio#31
Yes it's probably the case if the result is large. Did you try with a small resultset (like one row ?) ?
rserve-php doesnt handle large data yet.