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Warning

Currently, you can use this Resequencer pattern only through the Management Console of WSO2 Enterprise Service Bus (ESB) 4.9.0 via the WSO2-CARBON-PATCH-4.4.0-1935 WUM Update. For more information on how to update your WSO2 product distribution using WUM, see Updating WSO2 Products. In the future, this will be implemented with Tooling support in latter later WSO2 ESB versions.

The Resequence Message Store is used to store a stream of related but out-of-sequence messages to put them back into the correct order. It collects and re-orders the stored messages based on a defined sequence number derived from some part of the message, so that they can be published to the output channel in a specific order. This is advantageous specially when the order of message delivery is important to avoid some messages arriving earlier than others.

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