Use Oracle RAC Database 10g on SunOS nova 5.9

Question

Hello!
We use Oracle RAC Database 10g Enterprise Edition Release 10.1.0.5.0 - 64bit that consist of two nodes on SunOS nova 5.9 Generic_117171-17 sun4u sparc SUNW,Sun-Fire-V440.
Connection string as follows:
jdbc:oracle:thin:@(DESCRIPTION=(LOAD_BALANCE=ON)(ADDRESS=(PROTOCOL=TCP)(HOST=host1)(PORT=1521))(ADDRESS=
(PROTOCOL=TCP)(HOST=host2)(PORT=1521))(CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=proddb))).
Clustered Java application performs direct JDBC INSERT of record into database throw oracle.jdbc.pool.OracleDataSource.
Table got the following fields:
FIELD1 VARCHAR2(100 BYTE) NOT NULL,
FIELD2 VARCHAR2(100 BYTE) NOT NULL,
FIELD3 VARCHAR2(100 BYTE) NOT NULL,
FIELD4 VARCHAR2(100 BYTE),
FIELD5 VARCHAR2(100 BYTE),
FIELD6 VARCHAR2(100 BYTE),
FIELD7 INTEGER,
FIELD8 BLOB,
FIELD9 BLOB
Approx in 60 milliseconds another application node performs SELECT of that record, which return void result. However next SELECT returns needed result.
Defect is occurs with 50% probability.
Whether problem is connected with defect in Oracle RAC/JDBC Driver?
Thanks in advance!

Answer 1

RAC propogates commit messages using a method which piggy-backs on the next available inter-instance message. I think it's called the Lampart Method, but anyways .... it means you have an uncontrollable delay between committed data in your two instances.
Look at the init.ora parameter max_commit_propagation_delay, and consider setting it to 0. The parameter is briefly described in the Oracle Reference Guide.
cheers,
-Mark
www.remidata.com/book_nuts2soup.htm