Password Specify the password associated with the user name. Values depend on the provider. Key Store Password Specify the password for the key store object you want this secure connection to use. Key Store Path Specify the file path location of the key store you want this secure connection to use. False is recommended. Specify True if you want this connection to trust all certificates without validation. True is not recommended for production use.
Trust Store Path Specify the file path location of the trust store certificates you want this secure connection to use. Verify Host Active MQ only: Specify True if you want this secure connection to verify that the host server name matches its certificate.
Specify False to omit host verification. Batch tab. Option Description Duration ms Specify a time in milliseconds. This value is the amount of time the step will spend collecting records prior to the execution of the transformation. Note You must set this field if you are using Spark as your processing engine. Fields tab. Use this tab to define the fields in the record format. The following are received by default: message The individual message contained in a record. Output name The Output name can be mapped to subscriber and member requirements.
Type The Type field defines the data format for streaming the record which is the same data type that produced the records. Option is String. Result fields tab. Metadata injection support.
See also. Specifies the unique name of the step on the canvas. Specify the child transformation to execute by performing any of the following actions: Entering its path. Select Topic or Queue from the list to specify the delivery model you want to use. Specify the time to wait for incoming messages in milliseconds.
Specify a CipherSuite name. Specify the password for the key store object you want this secure connection to use. Specify the file path location of the key store you want this secure connection to use. Specify the file path location of the trust store certificates you want this secure connection to use. Active MQ only: Specify True if you want this secure connection to verify that the host server name matches its certificate.
Specify a time in milliseconds. Specify a number. Specify the maximum number of batches used to collect records at the same time. I would like to be able to guarantee that, as specified in your documentation, " Messages in a message group are always consumed by the same consumer" but getting rid of the FIFO blocking behavior on message retrieval for which i can't find any reference in your documentation neither in JMS 1.
In other words I'd like each idle consumer to retrieve the first message in the queue matching its groups. This said,I'am open to any alternative but I would like to avoid to set up a different configuration for my consumers avoiding so a SPOF on a specific consumer, any consumer being able to be elected in place of a crashed one. In the described architecture it means that all tasks servers are still perfectly identical same config, same deployed artifacts.
You can't simply get rid of the FIFO semantics as that would change the queue into some other kind of data structure. I guess you don't find an explanation of this either in the HornetQ documentation or in the JMS API is because it is assumed, kind of like saying the sky is blue.
If that's the case then I think you would need a specific queue for each group. It's theoretically possible that you could implement a remoting interceptor to catch the incoming messages, inspect their group, and redirect them to their own queue. Just an idea. At the end of the day you're trading performance for guaranteed grouping which requires serial consumption.
If you don't like the performance trade-off then you might want to re-evaluate your need for grouped messages. Home Content Places Search Cancel. Error: You don't have JavaScript enabled. This tool uses JavaScript and much of it will not work correctly without it enabled.
Please turn JavaScript back on and reload this page. Please enter a title. You can not post a blank message. Please type your message and try again. Thus Msg1 , Msg2 , and Msg3 are consumed by different receivers. This is a Message Queue extension. Receivers can share a connection or use different connections, but they can all access the same queue. Senders and receivers have no timing dependencies: the receiver can consume a message whether or not it was running when the sender produced and sent the message.
Messages are placed in a queue in the order they are produced, but the order in which they are consumed depends on factors such as message expiration date, message priority, whether a selector is used in consuming messages, and the releative message processing rate of the consumers.
Senders and receivers can be added and deleted dynamically at runtime, thus allowing the messaging system to expand or contract as needed. Java clients can use a queue browser object to inspect the contents of a queue.
They can then consume messages based on the information gained from this inspection. That is, although the consumption model is normally FIFO first in, first out , receivers can consume messages that are not at the head of the queue by using message selectors.
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