annacave.blogg.se - Ebay watcher alert

#EBAY WATCHER ALERT HOW TO#
#EBAY WATCHER ALERT FREE#

No Watches would be running during that period and anything that simply "looked back" would traditionally look for the time since the expected last run of the Watch, which tends to be the trigger time ( 1m in my case). For instance, imagine that Watcher was not running (for any reason) for a day. A classic issue with many alerting tools is that they fail to look for alerts during any time that they were not running. Using the state allows you to build very robust alerts while also being able to survive unexpected downtime.

#EBAY WATCHER ALERT FREE#

In the case of monitoring, we make use of the state both in the UI and in the Watch, which is a convenient win-win, but you could feel free to email (or Slack, HipChat, etc.) a more reader-friendly copy of the state as a secondary action, while also indexing the state for follow-on use. That's where you get the beefy transform script. The display then becomes a matter of transforming the checks into whatever we want them to look like. Also, once we answer both of those questions, we can control the flow of all actions. This avoids the need to constantly look for "are we okay?" because it's implied and we can therefore assume we're okay if we're not failing.

_resolved - Were we previously in an error state? (Based on the previous state from the second chain input, if any existed)įrom there, we proceed to do something with this Watch if either of those are true.

_check - Are we currently in an error state?.

If you look at the condition, it detects two things: "doc_id": "OjiYuMDJRSaONuhDec5NRg_elasticsearch_cluster_status" State = .hits._source.cluster_state.status Ĭtx.payload = .hits._source Ĭtx.payload.resolved_timestamp = ctx.execution_time Ĭtx.payload = Ĭtx.payload.prefix = 'Elasticsearch cluster status is ' + state + '.' Ĭtx.ssage = 'Allocate missing primary shards and replica shards.' Ĭtx.ssage = 'Allocate missing replica shards.' Ĭtx.payload.update_timestamp = ctx.execution_time At Elastic"Ĭtx.vars.fails_check = .total != 0 & .hits._source.cluster_state.status != 'green' Ĭtx.vars.not_resolved = .total = 1 & .hits._source.resolved_timestamp = null Frequently I just stop there, but I sometimes find myself wanting a stateful safety-net, which is the third and final option.Īs the author of most of the cluster alerts, you will find if you look at them that they are all the third option. In practice, I find myself starting with the first option and quickly building my way into the second option. watcher-history-*, then you need to create your own "state" index for remembering the last run(s).

If you are not going to read the previous state from.

This complicates the overall Watch, but it simplifies its behavior.

This is effectively the same thing as the second one, but it allows lapses in running the actual Watch because you can remember the previous state rather than hoping to catch it in your current request.

Create a Watch with a chain input, but store the state somewhere (or read it from.

Report the transition in the action(s).Use a script condition and most likely a script transform to compare the separate responses and determine if this is worth alerting against.Detect both scenarios in the same Watch using the separate inputs.This is generally the simplest approach.The second Watch triggers on detecting the "Error -> Okay" transition.The first Watch triggers on detecting the "Okay -> Error" transition.

#EBAY WATCHER ALERT HOW TO#

Therefore, the issue that you may be having is how to define the right condition and there are a lot of different strategies that you can employ, depending on the complexity that you are willing to endure: If the condition passes, such as when an "error" state is detected, then you can follow up by performing any action that is supported by Watcher. Hi can absolutely do this because it is just a matter of defining a condition to trigger on.