It is impossible to deploy only a difference file.
Deployment by WAR file is a method that conforms to the J2EE specifications and it is necessary to be performed in WAR file units.
■ Regarding convenience for deployment in a cluster environment
When using the cluster configuration for the application server (AP server), there is a mechanism to automatically deploy to all AP servers in the cluster by deploying the WAR file to a single AP server.
When using the above mechanism, it is necessary to deploy in WAR file unit in accordance with J2EE specifications.
■ Regarding modification of the expanded files after deployment
We do not recommend a method to directly update or fix the file after deployment.
After deploying the WAR file, it is possible to apply only the fixed file to the environment by directly updating the file expanded on the AP server.
If you directly update, the difference will naturally occur between the WAR file output from IM-Juggling and the file on the AP server.
When updating Accel Platform or re-installing it at the time of failure, etc., the file on the AP server will be overwritten with the file deployed from the WAR file.
(The files output to Storage and some files such as license information are not overwritten.)
Therefore, it is very likely that the updated difference file will be overwritten and the corrected file will not be applied on the server.
Also, if the AP server is configured in the cluster configuration, changing the file of a single AP server might cause a file mismatch with other AP servers, and result in unexpected problems.
■ Regarding security of file identity
IM-Juggling uses the hash value to confirm the identity of the distributed modules.
Therefore, if the same version and the same module as the deployed module are selected in IM-Juggling, it is guaranteed that the same file is always included in the WAR file.
As a result, before and after redeploying the WAR file, there will be no change in the behavior for parts where it has not been modified and where it has not been affected by the modification.
By properly managing the project on IM-Jugging and the WAR file created by IM-Juggling by the customer, only the modified difference resource will be changed.
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iAP/Accel Platform/All Updates
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FAQID:479
Is it possible to deploy only a fixed difference file?
