It looks like you are doing an MQGET and getting a 1024 byte message.

Could this be and old message from before you made the change?
If you tried to put a big message, and there was a problem the MQPUT would have failed.
Colin

Hi Abhiram,

From your screenshot, it seems you are trying to put the message using the MQ Console. The maximum message size you can put using the console is 1024 bytes.

To put 100MB messages, you need:

1) As Susan said, MAXMSGL(104857600) on three places: the Queue Manager, the Queue, and the SVRCONN Channel. For example:

    ALTER QMGR MAXMSGL(104857600)

    DEFINE QLOCAL('Q1') REPLACE DEFPSIST(NO) MAXMSGL(104857600)

    DEFINE CHANNEL(QM8CHL) CHLTYPE(SVRCONN) REPLACE TRPTYPE(TCP) SSLCAUTH(REQUIRED) SSLCIPH('ANY_TLS12_OR_HIGHER') MAXMSGL(104857600)

2) A client program capable of putting 100MB messages. None of the provided samples can put 100MB. I modified the JMS Put Sample (JmsPut.java): 

            char[] chars = new char[104857600]; // to put 100MB

            Arrays.fill(chars, 'a'); // to put 100MB

            String str = new String(chars); // to put 100MB

            // long uniqueNumber = System.currentTimeMillis() % 1000;  // to put 100MB

            TextMessage message = context.createTextMessage(str);  // to put 100MB

3) If your messages are persistent, a large enough file system for the MQ log. On my system, I got this error:

MQRC 2102 (Resource problem)

AMQ7463E: The log for queue manager QM8 is full.

(I managed to put 100MB non-persistent messages, but this may not be a good idea for you if your application requires persistence.)

Regards,

Hi Abhiram,

From your screenshot, it seems you are trying to put the message using the MQ Console. The maximum message size you can put using the console is 1024 bytes.

To put 100MB messages, you need:

1) As Susan said, MAXMSGL(104857600) on three places: the Queue Manager, the Queue, and the SVRCONN Channel. For example:

    ALTER QMGR MAXMSGL(104857600)

    DEFINE QLOCAL('Q1') REPLACE DEFPSIST(NO) MAXMSGL(104857600)

    DEFINE CHANNEL(QM8CHL) CHLTYPE(SVRCONN) REPLACE TRPTYPE(TCP) SSLCAUTH(REQUIRED) SSLCIPH('ANY_TLS12_OR_HIGHER') MAXMSGL(104857600)

2) A client program capable of putting 100MB messages. None of the provided samples can put 100MB. I modified the JMS Put Sample (JmsPut.java): 

            char[] chars = new char[104857600]; // to put 100MB

            Arrays.fill(chars, 'a'); // to put 100MB

            String str = new String(chars); // to put 100MB

            // long uniqueNumber = System.currentTimeMillis() % 1000;  // to put 100MB

            TextMessage message = context.createTextMessage(str);  // to put 100MB

3) If your messages are persistent, a large enough file system for the MQ log. On my system, I got this error:

MQRC 2102 (Resource problem)

AMQ7463E: The log for queue manager QM8 is full.

(I managed to put 100MB non-persistent messages, but this may not be a good idea for you if your application requires persistence.)

Regards,

Hi Abhiram,

From your screenshot, it seems you are trying to put the message using the MQ Console. The maximum message size you can put using the console is 1024 bytes.

To put 100MB messages, you need:

1) As Susan said, MAXMSGL(104857600) on three places: the Queue Manager, the Queue, and the SVRCONN Channel. For example:

    ALTER QMGR MAXMSGL(104857600)

    DEFINE QLOCAL('Q1') REPLACE DEFPSIST(NO) MAXMSGL(104857600)

    DEFINE CHANNEL(QM8CHL) CHLTYPE(SVRCONN) REPLACE TRPTYPE(TCP) SSLCAUTH(REQUIRED) SSLCIPH('ANY_TLS12_OR_HIGHER') MAXMSGL(104857600)

2) A client program capable of putting 100MB messages. None of the provided samples can put 100MB. I modified the JMS Put Sample (JmsPut.java): 

            char[] chars = new char[104857600]; // to put 100MB

            Arrays.fill(chars, 'a'); // to put 100MB

            String str = new String(chars); // to put 100MB

            // long uniqueNumber = System.currentTimeMillis() % 1000;  // to put 100MB

            TextMessage message = context.createTextMessage(str);  // to put 100MB

3) If your messages are persistent, a large enough file system for the MQ log. On my system, I got this error:

MQRC 2102 (Resource problem)

AMQ7463E: The log for queue manager QM8 is full.

(I managed to put 100MB non-persistent messages, but this may not be a good idea for you if your application requires persistence.)

Regards,