redis-monitor | : computer : A very simple redis monitor based on Flask | Frontend Framework library
kandi X-RAY | redis-monitor Summary
kandi X-RAY | redis-monitor Summary
:computer: A very simple redis monitor based on Flask and React. 一个部署简单的 redis 监控程序,使用 Flask 和 React 完成。
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QUESTION
I have a Redis cluster and Redis-exporter in two separate deployments in the same namespace of a Kubernetes cluster. I am using Prometheus operator to monitor the cluster, but I can not find a way to set up the exporter and the operator. I have set up a service targeting the Redis exporter(check below) and a ServiceMonitor(also below). If I port forward to the Redis exporter service I can see the metrics. Also, the Redis exporter logs do not show issues.
...ANSWER
Answered 2020-Oct-15 at 10:33I was missing spec.endpoints.path on the ServiceMonitor
Here is an example manifest from adding new scraping targets and troubleshooting tutorial.
QUESTION
While this Q/A does not address the actual issue of: How to detect with client (eg redis-py) that redis is running out of memory constraint not by machine but by the maxmem configuration? Before inserts fail which command to use in the programm to detect about to be full?
My first guess is: info and check if used_memory_peak
< maxmem
setting. Is this correct?
(Besides, for out of machine memory, since defrag, use which setting, none of the returned INFO
fields help here)
Well should i just try an insert and see if fail (but that would be after the fact then.)
...ANSWER
Answered 2019-Sep-14 at 12:02Trail and error, good enough tested by running
while true; do redis-cli lpush mm longstringhere; done;
results on maxmem - used_memory
< 0.1MB with insert failures:
(error) OOM command not allowed when used memory > 'maxmemory'.
So i have set i poll it via redis-py client and once the diff goes <1mb threshold throw up, sry raise Error of course. Make sure the user_memory
memory addon of your longest command is < threshold too of course otherwise you run into it on insert.
I try to figure how to calc the ~percentage of used mem so i get notification way earlier eg 90% of maxmem, therefore this solution is fine.
Info dump:
QUESTION
I need to monitor an Elasticache replication group with SNS + Pagerduty. Problem is Elasticache sends all events to configured sns arn without differentiating whether it's a serious event like ElastiCache:SnapshotFailed or a normal one as ElastiCache:CacheClusterParametersChanged.
I tried to attach a filter policy to the subscription of the topic, unfortunately the the filtering only works for message which contains a "MessageAttributes" field as mentioned in https://docs.aws.amazon.com/sns/latest/dg/message-filtering.html. So it doesn't work for me.
The message send by Elasticache is like:
...ANSWER
Answered 2018-Aug-01 at 09:49As you correctly pointed out SNS message filtering works based on message attributes.
So basically if elasticache is not setting any MessageAttributes then message filtering cannot be done
The only option left with you is to read the messages in the subscribers and then ignore the ones that you don't want
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