Performance for messaging queue - queue implemented as single cache entry.

Question

Hey Brian/All,
Has there been any progress on addressing the long standing performance issues with messaging?
i.e. messaging stores a queue within a single cache entry, which means it needs to deserialize, add item, and reserialize every time we add an item to the queue.
For push rep, this means a burst of data can bring messaging to it knees and cause a cluster to fall over (eg: a clear of a large cache, or a remote site that is unavailable causing queues to grow to a very large size).
I have also noticed that when a queue gets very large, the jmx suspend/drain times out, and throws an exception.
Cheers,
Neville.

Answer 1

Hi Friends,
Create a function that needs to be called on the ejbCreate.
Inside this function make the connections as in the snippet below and close it when ejbRemove() or exception.
fis                          = new FileInputStream("D:/MessageRouter_UAT/AppConfig.Properties");
props.load(fis);
fis.close();
String logPath      = props.getProperty("Log_path").trim()+".log";
logHandler      = new FileHandler(logPath);
logHandler.setFormatter(new SimpleFormatter());
logWriter.addHandler(logHandler);
logWriter.setLevel(Level.ALL);
MQEnvironment mqEnv      = null;
mqEnv      = new MQEnvironment();
MQEnvironment.hostname      = props.getProperty("MQ_HOST_NAME").trim();
MQEnvironment.port      = Integer.parseInt(props.getProperty("MQ_PORT").trim());
MQEnvironment.channel      = props.getProperty("CHANNEL_NAME").trim();
MQEnvironment.properties.put(MQC.TRANSPORT_PROPERTY, MQC.TRANSPORT_MQSERIES_CLIENT);
q_Mgr                = new MQQueueManager(props.getProperty("QUEUE_MANAGER").trim());
queueID                = q_Mgr.accessQueue(props.getProperty("ID_Queue").trim(), MQC.MQOO_OUTPUT);
queueSG                     = q_Mgr.accessQueue(props.getProperty("SG_Queue").trim(), MQC.MQOO_OUTPUT);
queueHK                = q_Mgr.accessQueue(props.getProperty("HK_Queue").trim(), MQC.MQOO_OUTPUT);
queueCL                     = q_Mgr.accessQueue(props.getProperty("CL_Queue").trim(), MQC.MQOO_OUTPUT);
Thanks,
Arun Prithviraj