Messages get too large due to big headers (in large clusters) ------------------------------------------------------------- Key: JGRP-1710 URL: https://issues.jboss.org/browse/JGRP-1710 Project: JGroups Issue Type: Bug Reporter: Bela Ban Assignee: Bela Ban Fix For: 3.4 In some cases, messages get bigger than the max bundling size because of large headers: {panel} ERROR 17:33:08,096 | Timer-5,c0,172.29.189.9-svc9-ZM26S32728-59135 | [TP.java:1335] | (org) | 172.29.189.9-svc9-ZM26S32728-59135: failed sending message to 172.29.190.181-svc2-00832091-31665 (70850 bytes): java.lang.Exception: message size (70850) is greater than max bundling size (64000). Set the fragmentation/bundle size in FRAG and TP correctly, headers: GMS: GmsHeader[INSTALL_MERGE_VIEW]: view=MergeView::[172.29.190.174-svc6-00832251-874|27] (1479) ... {panel} In the case of INSTALL_MERGE_VIEW, we send the full view (*not* the DeltaView) and the digest in the header. With 1479 members (as shown the the example above), this increases the message size beyond the max bundling size. Possible SOLUTION * Place the header fields in the message's buffer instead * Move FRAG2 *under* GMS ** Investigate impact on flow control etc