sql - Redshift query hangs on mule cloudhub -


i facing issue simple redshift query hangs. using mule , deployed code cloudhub. believe has got resultset size. when result set size low, less 50 rows, works fine. however, beyond appears hang , (after 2hours of request), see error in logs. using connection url as:

jdbc:postgresql://xyz?tcpkeepalive=true&usecursors=true&user=abc&password=123

and way, works fine in local mule runtime.

******************************************************************************** message               : [amazon](500150) error setting/closing connection: connection reset peer. (java.sql.sqlexception). message payload of type: parametermap code                  : mule_error-29999 -------------------------------------------------------------------------------- exception stack is: 1. [amazon](500150) error setting/closing connection: connection reset peer. (com.amazon.support.exceptions.generalexception)   com.amazon.jdbc.communications.channels.messagessocketchannel:-1 (null) 2. [amazon](500150) error setting/closing connection: connection reset peer. (java.sql.sqlexception)   com.amazon.jdbc.communications.channels.messagessocketchannel:-1 (null) 3. [amazon](500150) error setting/closing connection: connection reset peer. (java.sql.sqlexception). message payload of type: parametermap (org.mule.api.messagingexception)   org.mule.module.db.internal.processor.abstractdbmessageprocessor:93 (http://www.mulesoft.org/docs/site/current3/apidocs/org/mule/api/messagingexception.html) -------------------------------------------------------------------------------- root exception stack trace: com.amazon.support.exceptions.generalexception: [amazon](500150) error setting/closing connection: connection reset peer.     @ com.amazon.jdbc.communications.channels.messagessocketchannel.readmessages(unknown source)     @ com.amazon.jdbc.communications.channels.abstractmessagessocketchannel.read(unknown source)     + 2 more (set debug level logging or '-dmule.verbose.exceptions=true' everything) ********************************************************************************


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