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the NFS example will be tricky because there's no way for cross-host service dependencies automatically managed. You'll need a workaround there. You can monitor the exporting and nfs services properly (there's an nfsexports check, and you can also try checking rpcinfo connects) It'll leave a gap if i.e. a firewall fails, but if you monitor nfs well, focus on ...


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You can change the host ID in /var/lib/monit/id to the hostname of the Linux machine, but you need to manage the naming schema of your servers. This way when an Instance in your AutoScalingGroup died for some reason, the replacement will be added under m/monit with the same name.


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You can checkout dbitail. A Java tool I created, able to read local and distant log files using SSH. It is fairly simple to use. Some more explanations: https://github.com/pschweitz/DBITail/wiki Just download version corresponding to your operating system, of native jar release executable within your Java Runtime (requires java 8_40 or higher): https://...


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As I mentioned, I've installed oci8 via phpize. The solution was reinstall occi8 via pecl: pecl install oci8-2.0.8 Now, phpinfo shows specific information about oci8, not about PDO as before


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Another possibility (without GPO) is using surun with a rule as in this screenshot.


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You (or someone on your behalf) will need to use Scientific Method or similar to determine the cause. You are already partly on your way in as much as you have defined the problem A large CPU spike and have some data to work with. You will need to review the data you have. Analyse your logs and if necessary gather more data and analyse it. Being ...


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APM products instrument each language differently, they use a combination of APIs (such as profiling APIs) and also injection of code into the app using other methods. This provides all kinds of metrics and you can observe the connections (entry point and exit point) of the application so you can determine if the application is connecting somewhere else. You ...


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I think I got it. It can be solved using groupByNode. #A groupByNode(group(#B, #C), 0, 'asPercent') #B aliasSub(groupByNode(stats.counters.app.view.isbn.fetch.found.yes.*.rate, 8, "sumSeries"), "^(.*)$", "\1.yes") #C aliasSub(groupByNode(stats.counters.app.view.isbn.fetch.found.no.*.rate, 8, "sumSeries"), "^(.*)$", "\1.no")


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Essentially, you can't because the data is gone. Cacti uses rrdtool to store the data and this tool works by storing detailed records for only a short time and then aggregating this data into lower time resolution for longer time periods. As an example, it might store data in 5 minute intervals for a day 30 min intervals for a week (averaging 6 of the ...


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HAtop will in fact help you to get the information, but if you somehow want to react and get an email or doing a custom application look for monitoring solutions like Pandora FMS, Zabbix, PRTG for naming a few. In Japan Pandora FMS is very extended, so that is the one I learned and use for both home and professional cases. Check them out here if you like: ...


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It depends on how the way hosts are added. if the hosts are added via the network discovery or active agent auto-registration, the same actions that add the hosts can also link them to templates; if the hosts are added manually or via the API, you would indeed have to use the host.update API method Based on your comment, the hosts are imported from XML, ...


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Quoting the docs: It is possible to query HAProxy about its status. The most commonly used mechanism is the HTTP statistics page. This page also exposes an alternative CSV output format for monitoring tools. The same format is provided on the Unix socket. Additionally, you could have a look at HAtop, which is an interactive ncurses client ...


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If it is truly the number of packets since the last query (some systems, when you query the stats, reset to 0, others do not, you have to be sure), then use can use the sumSeries function, or more probably integral. Use grafana to select the integral function and your time range to see if you get the result you want, then you can pull that query and use it ...


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I would suggest you approach it differently and use a dedicated monitoring tool to accomplish this. My favourite monitoring tool which allows services to be restarted in case they crash, or are not listening at their configured port(s) anymore is monit: https://packages.debian.org/jessie/monit There are plenty of examples in the configuration file, on this ...


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Here a script that maybe will help you. This script read a list with URL and create web scenario direct in the zabbix database.


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Click on Services->SNMP, enable the SNMP server, set a community string, and Bob's your uncle. You can check whether it works or not.



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