RabbitMQ 3.11.3 Bug Fixes Stream unsubscription leaked metric counters. Stream could become unavailable in certain node or network failure scenarios. Enhancements It is now possible to pre-configure virtual host limits for groups of virtual hosts. This is done using a set of new keys supported by rabbitmq.conf Quorum queue replicas no longer try to contact their unreachable peers for metrics. Previously this could result in a 30-40s delay for certain HTTP API requests that list queue metrics if one or more cluster members were down or stopped. CLI Tools Bug Fixes rabbitmq-diagnostics status now handles server responses where free disk space is not yet computed. This is the case with nodes early in the boot process. When a plugin was enabled as a dependency (e.g. rabbitmq_shovel as a dependency of rabbitmq_shovel_management), CLI tools previously did not discover commands in such plugins. Only explicitly enabled or pre-configured plugins were scanned for commands. This behavior was confusing. Now all enabled (explicitly or as a dependency) plugins are scanned. rabbitmq-diagnostics memory_breakdown now returns results much faster in environments with a large number of quorum queues (say, tens or hundreds of thousands). Stream Plugin Bug Fixes Addition of a stream member could fail if the node being added was very early in its boot process (and doesn't have a certain stream-related components started). AMQP 1.0 Plugin Enhancements Support for "modified" disposition outcome used by some client libraries (such as QPid). Prometheus Plugin Bug Fixes Abruptly closed client connections resulted in incorrect updates of certain global metric counters. Management Plugin Bug Fixes Management UI links now include "noopener" and "noreferrer" attributes to protect them against reverse tabnabbing. Note that since management UI only includes a small number of external links to trusted resources, reverse tabnabbing is unlikely to affect most users. However, it can show up in security scanner results and become an issue in environments where a modified version of RabbitMQ is offered as a service. Shovel Plugin Bug Fixes Plugin could stop in environments where no static Shovels were defined and a specific sequence of events happens at the same time. Enhancements Shovel now handles connection.blocked and connection.unblocked notifications from remote destination nodes. This means fewer messages are kept in Shovel buffers when a resource alarm goes into affect on the destination node. |
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