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SequeLink JDBC Socket error "java.lang.OutOfMemoryError: Java heap space"

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TitleSequeLink JDBC Socket error "java.lang.OutOfMemoryError: Java heap space"
URL Namesequelink-jdbc-socket-error-java-lang-outofmemoryerror-java-heap-space
Article Number000111544
EnvironmentProduct: SequeLink JDBC Socket Server
Version: 6.0
OS: All supported platforms
Question/Problem Description
SequeLink JDBC socket runs out of Java heap space when a large number of records are returned through the service.
The machine has a large amount of memory.
Steps to Reproduce
Clarifying Information
Error Message[DataDirect][ODBC SequeLink driver][ODBC2JDBC][ODBC Odbc2Jdbc driver][backenddriver]java.lang.OutOfMemoryError: Java heap space

The socket server log shows:
SWSOC_TypeInfoArray_Create: SQLFetch returned -1
SWANDB_Logon : TypeInfoArray_Create failed
socsrv.swsoc.12378.Internal error, fatal server error detected.
Defect Number
Enhancement Number
Cause
The application was bringing back all of the data at once, and the 32-bit JDBC socket server was running out of memory.
Resolution
Set SL_JAVA_OPTIONS=-Xms1024m -Xmx3072m in the Socket Service ServiceEnvironmentVariable settings.
If that does not resolve the error, configure the application to return the rows in blocks.
Workaround
Notes
It may be possible to use OpenAccess in third party mode which requires a small amount of code to be built.  (https://media.datadirect.com/download/docs/openaccess/alloa/help.htm#page/sqlengineguide%2Foverview-of-the-third-party-sql-engine-api.html)
Using the OpenAccess product may involve more cost.
Last Modified Date12/10/2018 7:07 PM
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