# Sensu Classic (EOL)

**URL:** https://discourse.sensu.io/c/sensu-core/5.md

[Latest](https://discourse.sensu.io/latest.md) · [Categories](https://discourse.sensu.io/categories.md) · [Tags](https://discourse.sensu.io/tags.md)

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## [About the Sensu Classic (EOL) category](https://discourse.sensu.io/t/about-the-sensu-classic-eol-category/12)

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**Author:** [@system](https://discourse.sensu.io/u/system)\
**Replies:** 1\
**Last updated:** [December 13, 2019, 3:52am UTC](https://discourse.sensu.io/t/about-the-sensu-classic-eol-category/12 "2019-12-13T03:52:43Z")

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Discuss all things related to Sensu Core, the original open source version of Sensu. The deprecated sensu-users Google Groups mailing list was imported in this category.

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## [Sensu core custom handler stops working](https://discourse.sensu.io/t/sensu-core-custom-handler-stops-working/3364)

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**Author:** [@Darshan](https://discourse.sensu.io/u/Darshan)\
**Replies:** 1\
**Last updated:** [May 14, 2025, 5:20pm UTC](https://discourse.sensu.io/t/sensu-core-custom-handler-stops-working/3364 "2025-05-14T17:20:39Z")

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I am using sensu-core this is my custom handler “influxdb2-debug”: { “type”: “pipe”, “mutator”: “influxdb\_line\_protocol”, “command”: “/etc/sensu/handlers/influx-debug.rb” }, this is influx-deug.rb for testing #!/…

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## [Sensu Classic | How to list all the configure host | CPU and Memory Info](https://discourse.sensu.io/t/sensu-classic-how-to-list-all-the-configure-host-cpu-and-memory-info/3154)

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**Author:** [@jakhter](https://discourse.sensu.io/u/jakhter)\
**Replies:** 0\
**Last updated:** [September 8, 2023, 11:18am UTC](https://discourse.sensu.io/t/sensu-classic-how-to-list-all-the-configure-host-cpu-and-memory-info/3154 "2023-09-08T11:18:34Z")

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We been on Sensu Go but Discover there has been a Legacy Sensu Classic Env and now need to know How to list all the configure host in Sensu Class CPU and Memory each host have Configure monitoring or Check for each hos…

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## [Create custom handler for keepalive check](https://discourse.sensu.io/t/create-custom-handler-for-keepalive-check/3116)

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**Author:** [@subin](https://discourse.sensu.io/u/subin)\
**Replies:** 0\
**Last updated:** [May 5, 2023, 7:31am UTC](https://discourse.sensu.io/t/create-custom-handler-for-keepalive-check/3116 "2023-05-05T07:31:57Z")

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We have Sensu v0.26.3-1 in one of our critical legacy application running on Ubuntu 18.04. I’m trying to create a custom handler, like below, that will execute a bash script when keepalive fails for a host: { "handler…

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## [Status code 127 for checking memory usage](https://discourse.sensu.io/t/status-code-127-for-checking-memory-usage/3055)

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**Author:** [@Narayanaswamy](https://discourse.sensu.io/u/Narayanaswamy)\
**Replies:** 3\
**Last updated:** [January 5, 2023, 5:05am UTC](https://discourse.sensu.io/t/status-code-127-for-checking-memory-usage/3055 "2023-01-05T05:05:37Z")

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hello guys, i had written shell script for memory usage. and i am running the script with memory checks. provided full path . but while running the checksits frequently getting status code 127 and sometime its passing. …

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## [Status code 127](https://discourse.sensu.io/t/status-code-127/1365)

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**Author:** [@KendallChenoweth](https://discourse.sensu.io/u/KendallChenoweth)\
**Replies:** 7\
**Last updated:** [January 4, 2023, 2:20pm UTC](https://discourse.sensu.io/t/status-code-127/1365 "2023-01-04T14:20:13Z")

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In Sensu classic (Sensu core), I have a check failing because the check script doesn’t exist on the client. I know how to fix this, but what I’m more interested in is how to handle the error on the server. The return s…

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## [Setup Influxdb handler for v2.4](https://discourse.sensu.io/t/setup-influxdb-handler-for-v2-4/3013)

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**Author:** [@Antarjyoti](https://discourse.sensu.io/u/Antarjyoti)\
**Replies:** 1\
**Last updated:** [October 27, 2022, 2:35pm UTC](https://discourse.sensu.io/t/setup-influxdb-handler-for-v2-4/3013 "2022-10-27T14:35:57Z")

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We have a sensu setup for a large infra. We are running on sensu core 1.9 and have not updated to sensu go 6.8. We are trying to setup Influx DB handler for our influxdb database version 2.4, we currently cannot migrate …

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## [Sensu writes to Influx](https://discourse.sensu.io/t/sensu-writes-to-influx/3011)

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**Author:** [@Sindu\_Gokulapati](https://discourse.sensu.io/u/Sindu_Gokulapati)\
**Replies:** 1\
**Last updated:** [October 27, 2022, 2:33pm UTC](https://discourse.sensu.io/t/sensu-writes-to-influx/3011 "2022-10-27T14:33:42Z")

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we have sensu core setup Version : 1.9.0 recently have upgraded influx version to 2.4 and are able to manually write data from sensu to influx but new data isnt being pushed to influx from sensu automatically - hence th…

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## [No data available in Uchiwa Dashboard, but checks are running](https://discourse.sensu.io/t/no-data-available-in-uchiwa-dashboard-but-checks-are-running/2800)

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**Author:** [@udhuman](https://discourse.sensu.io/u/udhuman)\
**Replies:** 0\
**Last updated:** [January 12, 2022, 3:52pm UTC](https://discourse.sensu.io/t/no-data-available-in-uchiwa-dashboard-but-checks-are-running/2800 "2022-01-12T15:52:32Z")

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Hi, Uchiwa was running fine for many years, but now it is not showing any data and giving error "Datacenter NAMEOFDC returned: Connection error. Is the Sensu API running?" The client and server checks are running and s…

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## [No data available in Uchiwa Dashboard, but checks are running](https://discourse.sensu.io/t/no-data-available-in-uchiwa-dashboard-but-checks-are-running/2798)

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**Author:** [@udhuman](https://discourse.sensu.io/u/udhuman)\
**Replies:** 0\
**Last updated:** [January 11, 2022, 6:45pm UTC](https://discourse.sensu.io/t/no-data-available-in-uchiwa-dashboard-but-checks-are-running/2798 "2022-01-11T18:45:54Z")

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Hi, Uchiwa dashboard was perfectly running since 2016 without any issues, but now there are no data in the uchiwa dashboard. It gives the error message " Datacenter returned: Connection error. Is the Sensu API running? …

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## [Can someone help me with a check to Monitor the Windows Peripheral Devices?](https://discourse.sensu.io/t/can-someone-help-me-with-a-check-to-monitor-the-windows-peripheral-devices/2739)

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**Author:** [@nikhilnishant](https://discourse.sensu.io/u/nikhilnishant)\
**Replies:** 1\
**Last updated:** [November 12, 2021, 10:19pm UTC](https://discourse.sensu.io/t/can-someone-help-me-with-a-check-to-monitor-the-windows-peripheral-devices/2739 "2021-11-12T22:19:23Z")

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I am new to Sensu and trying to understand if there’s a way to monitor the USB devices attached to a windows machine. Need checks that can be run on the devices to fetch the required details.

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## [Forward sensu keepalive metrics in graphite](https://discourse.sensu.io/t/forward-sensu-keepalive-metrics-in-graphite/2626)

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**Author:** [@dpg](https://discourse.sensu.io/u/dpg)\
**Replies:** 6\
**Last updated:** [July 5, 2021, 6:45am UTC](https://discourse.sensu.io/t/forward-sensu-keepalive-metrics-in-graphite/2626 "2021-07-05T06:45:48Z")

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Hello all, right now im looking for a solution for an availability reporting based in sensu agent keepalive. unfortunately by default this feature doesn’t exist! So right know I try to configure the keepalive handler …

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## [Sensu handlers are not triggering](https://discourse.sensu.io/t/sensu-handlers-are-not-triggering/2623)

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**Author:** [@yogesh](https://discourse.sensu.io/u/yogesh)\
**Replies:** 1\
**Last updated:** [June 30, 2021, 12:19am UTC](https://discourse.sensu.io/t/sensu-handlers-are-not-triggering/2623 "2021-06-30T00:19:02Z")

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Hi, We have 3 sensu servers running in our organisation for monitoring and autoremediation and somehow remediation framework stopped working after migrating the VMs from one ESXI to other however, ips and other policies…

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## [We are looking for sensu\_0.25.5-1.deb for Ubuntu 1804 with Ruby version 2.5.7p206](https://discourse.sensu.io/t/we-are-looking-for-sensu-0-25-5-1-deb-for-ubuntu-1804-with-ruby-version-2-5-7p206/2460)

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**Author:** [@jverducc](https://discourse.sensu.io/u/jverducc)\
**Replies:** 0\
**Last updated:** [February 23, 2021, 1:01pm UTC](https://discourse.sensu.io/t/we-are-looking-for-sensu-0-25-5-1-deb-for-ubuntu-1804-with-ruby-version-2-5-7p206/2460 "2021-02-23T13:01:22Z")

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The overall issue is with the current version of Ruby (ruby 2.3.0p0) bundled in our Sensu version our Handlers are not working (most importantly PagerDuty) We have tried to manually change the ruby version once we ins…

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## [Sensu.org not resolving](https://discourse.sensu.io/t/sensu-org-not-resolving/2413)

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**Author:** [@JC\_Putter](https://discourse.sensu.io/u/JC_Putter)\
**Replies:** 1\
**Last updated:** [February 2, 2021, 7:45am UTC](https://discourse.sensu.io/t/sensu-org-not-resolving/2413 "2021-02-02T07:45:52Z")

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anyone else experiencing issues resolving repositories.sensuapp.org?

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## [Can't Update to Sensu Core 1.9.0-1 for Migrating to Sensu-Go](https://discourse.sensu.io/t/cant-update-to-sensu-core-1-9-0-1-for-migrating-to-sensu-go/2324)

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**Author:** [@D\_Lasa](https://discourse.sensu.io/u/D_Lasa)\
**Replies:** 2\
**Last updated:** [January 28, 2021, 7:53am UTC](https://discourse.sensu.io/t/cant-update-to-sensu-core-1-9-0-1-for-migrating-to-sensu-go/2324 "2021-01-28T07:53:49Z")

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Please fill out this template for all topics in this category. Make sure to read the docs before asking your question. Remember that this those helping you are volunteers. Be kind and follow this template :-). 1. What h…

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## [Unable to start sensu server](https://discourse.sensu.io/t/unable-to-start-sensu-server/2020)

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**Author:** [@hitjethva](https://discourse.sensu.io/u/hitjethva)\
**Replies:** 1\
**Last updated:** [August 24, 2020, 12:34am UTC](https://discourse.sensu.io/t/unable-to-start-sensu-server/2020 "2020-08-24T00:34:23Z")

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I have installed Sensu on my domain http://linuxbuz.com. My operating system is Ubuntu 20.04. When I start sensu server service, i am getting the following error: " sensu must be a hash " error while starting sensu -se…

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## [Sensu Client send to multiple Sensu providers](https://discourse.sensu.io/t/sensu-client-send-to-multiple-sensu-providers/1958)

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**Author:** [@mattshields](https://discourse.sensu.io/u/mattshields)\
**Replies:** 3\
**Last updated:** [July 20, 2020, 8:47pm UTC](https://discourse.sensu.io/t/sensu-client-send-to-multiple-sensu-providers/1958 "2020-07-20T20:47:38Z")

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I have two locations, each location has a Sensu provider. Each Sensu provider is only responsible for servers that are local to it, including it’s own checks. Is it possible to configure each Sensu provider’s Client co…

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## [Force\_resolve query](https://discourse.sensu.io/t/force-resolve-query/1144)

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**Author:** [@saumya](https://discourse.sensu.io/u/saumya)\
**Replies:** 5\
**Last updated:** [June 3, 2020, 12:40am UTC](https://discourse.sensu.io/t/force-resolve-query/1144 "2020-06-03T00:40:24Z")

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Wanted to know if there is any way to resolve a sensu alert automatically after it is triggered. Background: Just want an alert to trigger and then resolve immediately (even if the check is not resolved). I tried to a…

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## [Java Socket Chatting](https://discourse.sensu.io/t/java-socket-chatting/1466)

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**Author:** [@holou](https://discourse.sensu.io/u/holou)\
**Replies:** 0\
**Last updated:** [November 30, 2019, 12:03am UTC](https://discourse.sensu.io/t/java-socket-chatting/1466 "2019-11-30T00:03:46Z")

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A server from the computer and the client is on the other computer… how can execute them to chat or what is the source code on that?

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## [Proxy Client w/ Command Substitution and redacted variables](https://discourse.sensu.io/t/proxy-client-w-command-substitution-and-redacted-variables/1613)

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**Author:** [@mattshields](https://discourse.sensu.io/u/mattshields)\
**Replies:** 0\
**Last updated:** [January 28, 2020, 7:41pm UTC](https://discourse.sensu.io/t/proxy-client-w-command-substitution-and-redacted-variables/1613 "2020-01-28T19:41:56Z")

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Is it possible to to use command substitution and redacted variables with a proxy client? I’m trying to the following but it doesn’t seem to work. The problem is we do not want the SNMP community exposed in Uchiwa { …

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## [Sensu Core Agent on CentOS 8](https://discourse.sensu.io/t/sensu-core-agent-on-centos-8/1596)

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**Author:** [@mattshields](https://discourse.sensu.io/u/mattshields)\
**Replies:** 1\
**Last updated:** [January 22, 2020, 3:11pm UTC](https://discourse.sensu.io/t/sensu-core-agent-on-centos-8/1596 "2020-01-22T15:11:18Z")

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Yes, I understand Sensu Core is EOL and we are in the process of upgrading our infrastructure. But in the meantime, is the an RPM for CentOS 8 for Sensu Core?

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## [EOL Sensu Repo missing pubkey](https://discourse.sensu.io/t/eol-sensu-repo-missing-pubkey/1563)

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**Author:** [@Capt-Tom](https://discourse.sensu.io/u/Capt-Tom)\
**Replies:** 1\
**Last updated:** [January 6, 2020, 8:40pm UTC](https://discourse.sensu.io/t/eol-sensu-repo-missing-pubkey/1563 "2020-01-06T20:40:51Z")

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Hey guys, I started to patch in the changes to the EOL repos to keep a legacy workflow of mine going but the EOL site isn’t serving a pubkey, which is used when putting together the apt repo. If its not too much troubl…

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## [Why windows Sensu client package have linux admin tools (chmod.exe, chown.exe) in bin directory](https://discourse.sensu.io/t/why-windows-sensu-client-package-have-linux-admin-tools-chmod-exe-chown-exe-in-bin-directory/1543)

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**Author:** [@udhuman](https://discourse.sensu.io/u/udhuman)\
**Replies:** 0\
**Last updated:** [December 25, 2019, 8:15am UTC](https://discourse.sensu.io/t/why-windows-sensu-client-package-have-linux-admin-tools-chmod-exe-chown-exe-in-bin-directory/1543 "2019-12-25T08:15:29Z")

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Hello, I would like to know the existence of Linux Administrative tools (chmod.exe, chown.exe) under /opt/sensu/embedded/bin directory on windows Sensu client. So far I have not used these commands on windows machine an…

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## [Inheritance Problem From A Newbie Programmer](https://discourse.sensu.io/t/inheritance-problem-from-a-newbie-programmer/1494)

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**Author:** [@Tugsaksaksak](https://discourse.sensu.io/u/Tugsaksaksak)\
**Replies:** 1\
**Last updated:** [December 12, 2019, 4:51pm UTC](https://discourse.sensu.io/t/inheritance-problem-from-a-newbie-programmer/1494 "2019-12-12T16:51:04Z")

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Hey so I was a newbie in programming and the concept of Constructor Overloading Confuses me,Can someone Please help me understand the topic more…

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## [Class Attendance](https://discourse.sensu.io/t/class-attendance/1504)

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**Author:** [@Omal](https://discourse.sensu.io/u/Omal)\
**Replies:** 3\
**Last updated:** [December 13, 2019, 3:56am UTC](https://discourse.sensu.io/t/class-attendance/1504 "2019-12-13T03:56:35Z")

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Hi! guys can you help me to create a code for checking the attendance of my student?

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## [Java socket program](https://discourse.sensu.io/t/java-socket-program/1502)

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**Author:** [@holou](https://discourse.sensu.io/u/holou)\
**Replies:** 0\
**Last updated:** [December 12, 2019, 11:35am UTC](https://discourse.sensu.io/t/java-socket-program/1502 "2019-12-12T11:35:25Z")

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How to display the server’s name to the client when the server inputs its name using java… please help

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## [Cassandra monitoring with Sensu currently, need to send to Prometheus now](https://discourse.sensu.io/t/cassandra-monitoring-with-sensu-currently-need-to-send-to-prometheus-now/1492)

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**Author:** [@BDF](https://discourse.sensu.io/u/BDF)\
**Replies:** 2\
**Last updated:** [December 11, 2019, 9:30pm UTC](https://discourse.sensu.io/t/cassandra-monitoring-with-sensu-currently-need-to-send-to-prometheus-now/1492 "2019-12-11T21:30:39Z")

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Currently using Sensu to monitor Cassandra Servers, and recently another division started to use Prometheus. That group would like us to modify Sensu to send to Prometheus and display on Grafana. Sensu is run as a serv…

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## [Handler not always sending resolve events](https://discourse.sensu.io/t/handler-not-always-sending-resolve-events/1414)

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**Author:** [@Tyler](https://discourse.sensu.io/u/Tyler)\
**Replies:** 3\
**Last updated:** [December 3, 2019, 10:36pm UTC](https://discourse.sensu.io/t/handler-not-always-sending-resolve-events/1414 "2019-12-03T22:36:17Z")

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We have a sensu check that runs every 5 minutes & creates other checks. Think querying a list of \>1000 endpoints, and dynamically creating individual checks any of them are failing. We have a default handler set that sen…

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## [Sensu filter events based on hostname](https://discourse.sensu.io/t/sensu-filter-events-based-on-hostname/671)

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**Author:** [@Jay\_Kumar](https://discourse.sensu.io/u/Jay_Kumar)\
**Replies:** 3\
**Last updated:** [November 2, 2019, 12:44am UTC](https://discourse.sensu.io/t/sensu-filter-events-based-on-hostname/671 "2019-11-02T00:44:03Z")

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I am trying to create Sensu filter to filter out all alert/events from clients name say test { “filters”: { “test\_server\_filter”: { “negate”: false, “attributes”: { “client”: “eval: name =~ /test/i” } } } } lo…

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