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Subject: [OASIS Issue Tracker] Updated: (MQTT-16) Reserve $SYS topic name
[ http://tools.oasis-open.org/issues/browse/MQTT-16?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] David Locke updated MQTT-16: ---------------------------- Proposal: In normative document reserve the use of a top level topic for future use e.g. $SYS or $ADMIN In a non-normative document collect ideas and refine a topic space for administration. was: In normative document reserve the use of $SYS topic for future use In a non-normative document collect ideas and refine a $SYS topic space for administration. Component/s: core Description: Many MQTT implementations today use $SYS as the head of a topic string for use in administration (configuration, operations, monitoring). Can the $SYS or a similar topic name be reserved for future use ? As $SYS is already used by a number of servers using a different top level topic would avoid conflicts. Would be good to collect ideas for a $SYS topic space. These ideas could initially go into a non-normative document but with potential for inclusion in a future spec. The intent being servers can implement some aspects of administration and monitoring in a consistent way Some examples: - Admin action like "unretain" a retained topic e.g. $SYS/topic/unretain (payload is the topic to unretain) - Client wishes to query what subscriptions it has made e.g. $SYS/client/getsubs (topic is clientid) - Client wishes to query how many messages are queued up awaiting delivery e.g. $SYS/client/getNoQueuedMessages - Query the state of the MQTT server e.g. $SYS/server/getStatus These examples should not be taken literally they are purely to show the type of things a $SYS topic space could be used for. was: Many MQTT implementations today use $SYS as the head of a topic string for use in administration (configuration, operations, monitoring). Can the $SYS topic name be reserved? Would be good to collect ideas for a $SYS topic space. These ideas could initially go into a non-normative document but with potential for inclusion in a future spec. The intent being servers can implement some aspects of administration and monitoring in a consistent way Some examples: - Admin action like "unretain" a retained topic e.g. $SYS/topic/unretain (payload is the topic to unretain) - Client wishes to query what subscriptions it has made e.g. $SYS/client/getsubs (topic is clientid) - Client wishes to query how many messages are queued up awaiting delivery e.g. $SYS/client/getNoQueuedMessages - Query the state of the MQTT server e.g. $SYS/server/getStatus These examples should not be taken literally they are purely to show the type of things a $SYS topic space could be used for. Tidied up the description and set the component > Reserve $SYS topic name > ----------------------- > > Key: MQTT-16 > URL: http://tools.oasis-open.org/issues/browse/MQTT-16 > Project: OASIS Message Queuing Telemetry Transport (MQTT) TC > Issue Type: Improvement > Components: core > Affects Versions: 3.1.1 > Reporter: David Locke > Fix For: 3.1.1 > > > Many MQTT implementations today use $SYS as the head of a topic string for use in administration (configuration, operations, monitoring). > Can the $SYS or a similar topic name be reserved for future use ? As $SYS is already used by a number of servers using a different top level topic would avoid conflicts. > Would be good to collect ideas for a $SYS topic space. These ideas could initially go into a non-normative document but with potential for inclusion in a future spec. The intent being servers can implement some aspects of administration and monitoring in a consistent way > Some examples: > - Admin action like "unretain" a retained topic e.g. $SYS/topic/unretain (payload is the topic to unretain) > - Client wishes to query what subscriptions it has made e.g. $SYS/client/getsubs (topic is clientid) > - Client wishes to query how many messages are queued up awaiting delivery e.g. $SYS/client/getNoQueuedMessages > - Query the state of the MQTT server e.g. $SYS/server/getStatus > These examples should not be taken literally they are purely to show the type of things a $SYS topic space could be used for. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://tools.oasis-open.org/issues/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira
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