Red Hat Bugzilla – Bug 1139102
The node-identifier default value uses invalid dash char '-'
Last modified: 2017-10-09 20:06:25 EDT
The node-identifier doesn't accept dash char '-' but generated default value contains that char becuase the Utility.getpid() returns signed int. See the following inconsistent error message. > 11:40:01,575 WARN [com.arjuna.ats.arjuna] (ajp-/0.0.0.0:8009-1) ARJUNA012132: Supplied name of node contains reserved character -. Using Arjuna:-2044534771 Workaround exists, set correct node-identifier value manually.
Hi Takayoshi, In production we should always recommend setting the node-identifier manually. What configuration are you using? My gut reaction is to ask you to make this a docs bug to ensure it is made clear there. It would be useful to link to the section where it is suggested it is OK to not manually set the node-identifier. Tom
Yes we always recommend to set it manually. The story was, the customer assigned ${jboss.node.name} to the node-identifier, but the node name was like "jboss-node1" and got this WARN message. The customer fixed the name, so it's no longer a problem but wonders about this puzzling WARN message. The config is pretty much EAP 6 default, uuid process id.
Hi Takayoshi, I think the fix should be to fail to start up if an invalid node name is specified. TBH I thought it did that but it looks like that is just in master. If you are happy I will modify this Jira to address that. Tom
Yes I agree with you, we need validation at boot time. 1. Invalid node-identifier specified it should fail at boot. 2. No node-identifier specified, warn it, generate default. What do we do in #2 scenario? In some cases XA is not used at all so we may allow no node-identifier configuration but it would be a problem when XA is actually used.
Hi Takayoshi, There is a default of "1" allocated in the integration code. The times to override that are if there are multiple servers accessing the same resource manager or they are using JTS. I guess one of these scenarios is true for your customer and hence they have overriden the default. Thanks, Tom
Ok, I'm fine as long as we WARN at boot time if the value remains the default "1".
Tom Jenkinson <tom.jenkinson@redhat.com> updated the status of jira JBTM-1341 to Closed
I have fixed this upstream, the validation about the "-" was not required anyway but I validate the length of the identifier at startup which is required
Fixed in 4.17.23
Verified on revision EAP 6.4.0.DR12. Now when node-identifier is not set, it shows warning message "Node identifier property is set to the default value. Please make sure it is unique." in startup. It checks the length of node-identifier on startup. "Values must have a maximum length of 23 characters" error is shown. It is possible to specify node-identifier with dash char '-' in the name.