[ http://issues.apache.org/jira/browse/DERBY-1535?page=comments#action_12423385 ] Tomohito Nakayama commented on DERBY-1535: ------------------------------------------
Reading the code, the parameter of paramBytes seems not be null. Instead, ps.setNull method seems to be called in DRDAConnThread.parseSQLDTA_work method. However I can't conclude only by reading the source code. Too much "seems to be" is in my report yet. *( Current my recognition is that we need to trace execution of the program using jdb. > Trial 2 for DERBY-550, improve use of Engine from NetworkServer and reduce > memory usage > --------------------------------------------------------------------------------------- > > Key: DERBY-1535 > URL: http://issues.apache.org/jira/browse/DERBY-1535 > Project: Derby > Issue Type: Sub-task > Components: Network Server > Reporter: Tomohito Nakayama > Assigned To: Tomohito Nakayama > Attachments: DERBY-1513_1535.patch, DERBY-1513_1535_2.patch, > DERBY-1535.patch, serverMemoryUsage.xls, serverMemoryUsage_1513_1535.xls > > > Through DERBY-1513, Trial 1 for DERBY-550, > it was suggested that NetworkServer seems to use Engine inefficiently and use > too much of memory. > This task try to improve the use of Engine from NetworkServer and try to > reduce memory usage. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://issues.apache.org/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira
