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Posted to dev@activemq.apache.org by "Gary Tully (Resolved) (JIRA)" <ji...@apache.org> on 2011/12/01 18:30:40 UTC
[jira] [Resolved] (AMQ-3614) Unable to generate unique id when
range of ports are blocked - org.apache.activemq.util.IdGenerator
[ https://issues.apache.org/jira/browse/AMQ-3614?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Gary Tully resolved AMQ-3614.
-----------------------------
Resolution: Fixed
Fix Version/s: 5.6.0
Assignee: Gary Tully
thanks. patch applied with with small mods. Left the log at warn as the fallback means that two clients could use the same ids.
http://svn.apache.org/viewvc?rev=1209162&view=rev
> Unable to generate unique id when range of ports are blocked - org.apache.activemq.util.IdGenerator
> ---------------------------------------------------------------------------------------------------
>
> Key: AMQ-3614
> URL: https://issues.apache.org/jira/browse/AMQ-3614
> Project: ActiveMQ
> Issue Type: Bug
> Components: Broker
> Affects Versions: 5.5.1
> Reporter: Jason Sherman
> Assignee: Gary Tully
> Fix For: 5.6.0
>
> Attachments: AMQ3614.patch
>
>
> org.apache.activemq.util.IdGenerator is unable to generate a unique id if a range of ports have been block.
> Currently there is only one strategy create this id if the canAccessSystemProps condition is true:
> {code}
> if (canAccessSystemProps) {
> try {
> hostName = InetAddressUtil.getLocalHostName();
> ServerSocket ss = new ServerSocket(0);
> stub = "-" + ss.getLocalPort() + "-" + System.currentTimeMillis() + "-";
> Thread.sleep(100);
> ss.close();
> } catch (Exception ioe) {
> LOG.warn("could not generate unique stub", ioe);
> }
> } else {
> hostName = "localhost";
> stub = "-1-" + System.currentTimeMillis() + "-";
> }
> {code}
> No fallback strategy has been implemented if the canAccessSystemProp evaluates to true
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