NAKACK: SET_DIGEST does not overwrite the digest ------------------------------------------------ Key: JGRP-1014 URL: https://jira.jboss.org/jira/browse/JGRP-1014 Project: JGroups Issue Type: Bug Reporter: Bela Ban Assignee: Bela Ban Fix For: 2.8 When we set a digest in NAKACK, we do not overwrite an element for a member if it already exists. With state transfer, the following issue can occur (see [1]): Scenario #2: - [NAKACK] D receives B:11 (digest is 11 now for B) - [NAKACK] D applies the digest: this does NOT reset the digest for B to #10, but it remains #11 !! - D delivers B:11 to the app, changes state - D sets state, overwriting the change from B:11 --> B:11 will NOT get retransmitted as the digest in NAKACK contains it ! --> B:11 is lost SOLUTION: maybe add a 'state' boolean to the setDigest() method and overwrite if true This is a regression in 2.8 only; 2.6.x and 2.4.x handle SET_DIGEST correctly and do overwrite the digest. [1] https://jira.jboss.org/jira/browse/JGRP-1013 -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: https://jira.jboss.org/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira