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Title: HornetQ Message Replication Describe the issue: The section "Message Replication" belongs to the "High Availability" section as it is a second option besides using shared storage. Suggestions for improvement: It should go between 17.8.1. About HornetQ Shared Stores and 17.8.2. About High-availability (HA) Failover Also the introduction in "17.9.1. HornetQ Message Replication" saying "HornetQ supports the ability to continue functioning after failure of one or more of the servers. Part of this is achieved through failover support where client connections migrate from the live server to a backup server in the event of the live server failing. To keep the backup server current, messages are replicated from the live server to the backup server continuously through two strategies: shared store and replication. This section covers the replication strategy. Warning Only persistent messages are replicated. Any non-persistent messages do not survive failover. " would make a perfect candidate to go into a intro section of "17.8. High Availability" (and removed from "17.9.1. HornetQ Message Replication") in a slightly modified version in a sense that the last sentence should be "The following two sections cover both strategies." Additional information:
The above changes have been made. The updated version of the book is available for review at [1] immediately. This bug will be moved to ON_QA once the update has been pushed to the docs stage. 1: http://docbuilder.usersys.redhat.com/22508/
Moving to ON_QA. The changes should be available for review on the documentation stage within an hour or so from this comment. http://documentation-devel.engineering.redhat.com/site/documentation/en-US/JBoss_Enterprise_Application_Platform/
Hi Scott, I can still see chapter "17.9. Message Replication" in: http://documentation-devel.engineering.redhat.com/site/documentation/en-US/JBoss_Enterprise_Application_Platform/ Can you check it, please? Thanks, Mirek
Miroslav, The section in question appears to have been moved as requested when I view the book: 17.8. High Availability 17.8.1. High Availability Introduction 17.8.2. About HornetQ Shared Stores 17.8.3. HornetQ Message Replication <== 17.8.4. About High-availability (HA) Failover 17.8.5. Deployments on HornetQ Backup Servers 17.9. Message Replication 17.9.1. Configuring the HornetQ Servers for Replication 18. Transaction Subsystem Can you ensure you're reviewing version 6.3.0-2 built on Wednesday Feb 26 and do a hard refresh of your browser to ensure you pick up the changes.
Hi Scott, it seems that I've already seen updated version. There are still chapters: 17.9. Message Replication 17.9.1. Configuring the HornetQ Servers for Replication which I believe should be also in 17.8. High Availability. Thanks, Mirek
Oh, my apologies Miroslav, I misunderstood that you were asking that the entire "Message Replication" chapter be moved, rather than just the "HornetQ Message Replication" section. I've moved "Configuring the HornetQ Servers for Replication" section to beneath the "HornetQ Message Replication" section in the 'High Availability' chapter. There is no 'Message Replication' chapter any longer. The new ToC looks like this: 17.8. High Availability 17.8.1. High Availability Introduction 17.8.2. About HornetQ Shared Stores 17.8.3. HornetQ Message Replication 17.8.4. Configuring the HornetQ Servers for Replication 17.8.5. About High-availability (HA) Failover 17.8.6. Deployments on HornetQ Backup Servers 18. Transaction Subsystem The change is available for perusal at: http://docbuilder.usersys.redhat.com/22508/ Moving this ticket to MODIFIED until the book is republished to the docs stage for verification. Sorry again for the misunderstanding, Miroslav.
The above changes are available for review on the documentation stage at: http://documentation-devel.engineering.redhat.com/site/documentation/en-US/JBoss_Enterprise_Application_Platform/6.3/html-single/Administration_and_Configuration_Guide/index.html#sect-High_Availability
Hi Scott, thanks for updates and don't worry about it. We'll have to rewrite this 17.8 chapter almost from scratch anyway as it appears to be missing configuration examples and deeper description of behaviour dedicated/colocated topology with shared/replicated journal. There are other BZs which should address this. I'm setting this BZ as verified since the reported issue is fixed. Thanks, Mirek