stdx::interval, a library for intervals on totally ordered sets Eric Hughes, Meadhbh Hamrick stdx::interval, a library for intervals on totally ordered sets Eric Hughes, Meadhbh Hamrick In brief stdx::interval implements the mathematical sense of an interval on a totally ordered set. The library reasons about intervals as sets, not as interval expressions. The library is header-only and targets C++20. It is available Membership. Determine if a point is a member of the interval as a set. Equality. Compares the intervals as sets, not as specifications. Operations Point comparison. A generalization of membership. Similar

and polling), IPMI, JMX, VMware monitoring • custom checks • gathering desired data at custom intervals • performed by server/proxy and by agents Flexible threshold definitions • you can define very periods User macros and time suffixes (such as 30s, 5m, 2h, 1d, 1w) are now supported in item update intervals and many more locations where time periods are specified in Zabbix. It’s important to note that field for each widget. It is now possible to configure default refresh interval. Default refresh intervals for widgets range from No refresh to 15 minutes depending on the type of widget. For example: No

and polling), IPMI, JMX, VMware monitoring • custom checks • gathering desired data at custom intervals • performed by server/proxy and by agents Flexible threshold definitions • you can define very on configured update intervals. While for many items the update intervals are quite short, there are others (including low-level discovery rules) for which the update intervals are quite long, so in will try to pool requests to a single JMX target together as much as possible (affected by item intervals) and send them to the Java gateway in a single connection for better performance. It is suggested

and polling), IPMI, JMX, VMware monitoring • custom checks • gathering desired data at custom intervals • performed by server/proxy and by agents Flexible threshold definitions • you can define very will try to pool requests to a single JMX target together as much as possible (affected by item intervals) and send them to the Java gateway in a single connection for better performance. 33 It is suggested running → Version of Zabbix agent running) Changes in 4.2.1 SNMP interface templates Update intervals have been changed from 5m to 3m for these LLD item prototypes: • Interface {#IFNAME}({#IFALIAS}):

and polling), IPMI, JMX, VMware monitoring • custom checks • gathering desired data at custom intervals • performed by server/proxy and by agents Flexible threshold definitions • you can define very service. Passive checks work similarly to Zabbix agent. Active checks support scheduled/flexible intervals and check concurrency within one active server. Check concurrency Checks from different plugins will try to pool requests to a single JMX target together as much as possible (affected by item intervals) and send them to the Java gateway in a single connection for better performance. It is suggested

and polling), IPMI, JMX, VMware monitoring • custom checks • gathering desired data at custom intervals • performed by server/proxy and by agents Flexible threshold definitions • you can define very daemonization. Passive checks work similarly to Zabbix agent. Active checks support scheduled/flexible intervals and check concurrency within one active server. ** Check concurrency ** Checks from different each plugin. • plugin.Collector Collector is used when a plugin needs to collect data at regular intervals. This interface usually is used together with the Exporter interface to export the collected data

and polling), IPMI, JMX, VMware monitoring • custom checks • gathering desired data at custom intervals • performed by server/proxy and by agents Flexible threshold definitions • you can define very service. Passive checks work similarly to Zabbix agent. Active checks support scheduled/flexible intervals and check concurrency within one active server. ** Check concurrency ** Checks from different will try to pool requests to a single JMX target together as much as possible (affected by item intervals) and send them to the Java gateway in a single connection for better performance. It is suggested

and polling), IPMI, JMX, VMware monitoring • custom checks • gathering desired data at custom intervals • performed by server/proxy and by agents Flexible threshold definitions • you can define very of specifying flexible update intervals. However, checking an item at a specific time and date - that was not previously supported. In the new version flexible intervals have been supplemented with a item, both flexible interval and scheduling formats are available under a new option called Custom intervals. 5.6 Custom parameter support for alert scripts In previous Zabbix versions three hard-coded parameters

and polling), IPMI, JMX, VMware monitoring • custom checks • gathering desired data at custom intervals • performed by server/proxy and by agents Flexible threshold definitions • you can define very service. Passive checks work similarly to Zabbix agent. Active checks support scheduled/flexible intervals and check concurrency within one active server. Note: By default, Zabbix agent 2 will schedule will try to pool requests to a single JMX target together as much as possible (affected by item intervals) and send them to the Java gateway in a single connection for better performance. It is suggested

and polling), IPMI, JMX, VMware monitoring • custom checks • gathering desired data at custom intervals • performed by server/proxy and by agents Flexible threshold definitions • you can define very service. Passive checks work similarly to Zabbix agent. Active checks support scheduled/flexible intervals and check concurrency within one active server. 44 Note: By default, Zabbix agent 2 will schedule prevent spikes in resource usage. To perform active checks that do not have Schedul- ing update intervals immediately after the agent restart, set ForceActiveChecksOnStart parameter (global-level) or Plugins