PH

Petr H.

Lead DevOps Engineer

Small-Business (50 or fewer emp.)

1/4/2022

"Very solid monitoring solution!"

4/5

What do you like best about Prometheus?

Very powerful monitoring solution and the Prom Query language is very powerful too! Review collected by and hosted on G2.com.

What do you dislike about Prometheus?

A bit of a learning curve to get a good handle of the Prom Query language, but very useful once you know the ins and outs Review collected by and hosted on G2.com.

LK

Lavitra K.

Member of Technical Staff 3

Enterprise (> 1000 emp.)

9/28/2020

"Prometheus - The Alerting Way"

4/5

What do you like best about Prometheus?

The Best thing I liked about Prometheus is that It comes with it's own Prom Query Language. Once we learn Prom Query Language, we can write any query to define alerting rules. Also it comes with many aggregate functions which can be used to filter and apply mathematical calculations on the alerts. It comes with wide variety of alerting metrics. Example for Virtual machines and also for Kubernetes Clusters. Review collected by and hosted on G2.com.

What do you dislike about Prometheus?

There is very minimum things to said as bad, but one thing that i found is you will have to know all the metric names in order to create rules and there are a lot of metrics. Also another thing which i disliked is it doesn't have a stable client library for most of the programming languages. Review collected by and hosted on G2.com.

Recommendations to others considering Prometheus:

If you want a monitoring system which is open source then Prometheus is the best choice for you. As it is open source, there is plenty of room for new features. It can incorporate with many alerting systems, which is a plus. Review collected by and hosted on G2.com.

What problems is Prometheus solving and how is that benefiting you?

I am using Prometheus to monitor Kubernetes clusters and virtual machines and create alerts based of different situations. The most important benefit i have realized is it supports both webhook and email alerts. Review collected by and hosted on G2.com.

JS

Justin S.

System Administrator

Mid-Market (51-1000 emp.)

11/7/2019

"The monitoring way of the future"

5/5

What do you like best about Prometheus?

The entire product stack is open source. Far more flexible than traditional monitoring solutions like Nagios. A wide variety of Prometheus metric exporters already in the community, and many open source products are natively incorporating Prometheus exporters. Review collected by and hosted on G2.com.

What do you dislike about Prometheus?

Prometheus developers and export developers have punted on security by leaving implementation up to other products. I get that they want to focus on the core of the product, but virtually every other product out there features support for authentication and authorization right out of the box. Review collected by and hosted on G2.com.

What problems is Prometheus solving and how is that benefiting you?

Nagios was our first monitoring product. We went with Nagios XI for the same reason people buy Cisco switches - nobody ever got fired for buying Cisco hardware, and nobody ever got fired for going with Nagios for monitoring. However, as we grew, we found that Nagios XI doesn't really scale. In addition, both the checks and agent were community maintained and often poorly maintained at that.

We went from Nagios to Sensu - specifically, Sensu Go, which is a greatly improved rewrite of the original codebase. Sensu Go has a really interesting architecture - it's got its own built-in mechanism, Assets, for distributing checks, and the agents are maintained by the company. But the documentation and web UI were terrible, and you were still dependent on writing all checks yourself or sourcing old Nagios checks from the community.

After Sensu more than doubled its support costs year-over-year, we decided that we'd had enough, and I finally gave Prometheus a try. My DevOps friends had been raving about how well it's designed, now I can see why. It's trivial to set up; there's a vast array of strongly-supported exporters, and it's far more flexible than simply checking whether something is running or not.

And it does scale, either through sharding instances or through other projects like Thanos. Nagios is waaay over the hill, and it shows. Sensu isn't much further behind unless they can get their act in order. I see positive things for us and Prometheus. Review collected by and hosted on G2.com.

RN

Rohit N.

Principal Software Engineer

Enterprise (> 1000 emp.)

5/4/2020

"Blazing fast, reliable & free TSDB"

4.5/5

What do you like best about Prometheus?

It works on the pull model. This helps the TSDB to decide at what rate it wants to pull the data from the clients. Review collected by and hosted on G2.com.

What do you dislike about Prometheus?

It only supports HTTP APIs to pull the data into the DB. I wish it could add more methods like S3 pull etc. Review collected by and hosted on G2.com.

Recommendations to others considering Prometheus:

Its reliable and free to use. There is great community support. Fully configurable to pull data from various sources via API calls and rate at which the data is added can be controlled. Review collected by and hosted on G2.com.

What problems is Prometheus solving and how is that benefiting you?

Adding system metrics data every minute from across the cluster and dashboarding using Grafana. Review collected by and hosted on G2.com.

AC

Verified User in Computer Software

Small-Business (50 or fewer emp.)

5/1/2020

"Amazing open source tool for monitoring, very customizable"

5/5

What do you like best about Prometheus?

Approach and philosophy, auto discovery. Review collected by and hosted on G2.com.

What do you dislike about Prometheus?

Not very easy to start with the product. Learning curve. Review collected by and hosted on G2.com.

MC

Matt C.

Senior Software Engineer - SRE

Computer Software

Mid-Market (51-1000 emp.)

1/29/2019

"A Deep Well of Metrics"

5/5

What do you like best about Prometheus?

The depth and granularity of the metrics made available by Prometheus are better than any monitoring tool I have used to date. The configuration documentation is long but covers everything in great detail. There was not an issue creating the service accounts, setting user permissions or building our first configuration files. Review collected by and hosted on G2.com.

What do you dislike about Prometheus?

This is not an easy setup. It's not insurmountable and the documentation is good but the configurations of user accounts and configuration files takes time. Node exporters for Windows are an agent install which must be done at the machine which slows down Windows deployment. Review collected by and hosted on G2.com.

Recommendations to others considering Prometheus:

Completely worth the time implementing. Review collected by and hosted on G2.com.

What problems is Prometheus solving and how is that benefiting you?

We needed a system monitoring tool that offered both whitebox and blackbox monitoring tools for a mixed OS environment. It also needed to be light on network resources. Prometheus provides all of these things which has given us faster access to the data we need to keep our networks up and healthy. The most improved area is monitoring our SQL database systems. We get instant feedback on our dashboards when these services are in trouble. Review collected by and hosted on G2.com.

AI

Verified User in Internet

Mid-Market (51-1000 emp.)

1/17/2019

Business partner of the seller or seller's competitor, not included in G2 scores.

"Decent tool for the cloud immutable infrastructure monitoring and alerting"

5/5

What do you like best about Prometheus?

Easy redeployable, very fast database (even the giant queries are running super-fast), concept of the services monitoring instead of the instances monitoring. Really adequate queries syntax, simple alerting, in-house integration with the Grafana. It's already has the exporters for more-or-less whatever technology you are using. Even if there are no exporters for your specific system or needs, you are always able to write your own one on the whatever language you want, it's literally perfect Review collected by and hosted on G2.com.

What do you dislike about Prometheus?

Starting from 2.x version, there are probably no weak points, the Prometheus team is really doing the great job Review collected by and hosted on G2.com.

Recommendations to others considering Prometheus:

From my perspective, Prometheus will be completely useless in the stable datacenter-based setups, because it's created for the immutable and fast-changing infrastructures. Also, if you're using the old versions (1.x) -- the storage engine is not really good, they've improved it only in 2.x branch Review collected by and hosted on G2.com.

What problems is Prometheus solving and how is that benefiting you?

Correct monitoring and alerting, which will be reliable with the fully-cloud immutable infrastructure.

We've got the immutable-itself monitoring, which is perfectly customizable and redeployable via the simple pipelines. Also, the ability to write your own exporters is decent. Review collected by and hosted on G2.com.

CC

Verified User in Computer Software

Enterprise (> 1000 emp.)

10/23/2019

"Prometheus "

3.5/5

What do you like best about Prometheus?

It is very simple to use and has no external dependencies. It has a powerful query language to retrieve and evaluate metrics. Review collected by and hosted on G2.com.

What do you dislike about Prometheus?

Using it little bit difficult. Routing from different ports is difficult. Review collected by and hosted on G2.com.

II

Verified User in Information Technology and Services

Enterprise (> 1000 emp.)

8/25/2019

"Prometheues from dev to prod"

4.5/5

What do you like best about Prometheus?

i like that its really light weighted and is compatible to collect data from many exporters Review collected by and hosted on G2.com.

What do you dislike about Prometheus?

i dont like the alert manager part , its really complex and we find difficulties to configure using equations and promQL stuff Review collected by and hosted on G2.com.

RC

Raghu C.

Customer Reliability Engineer

Small-Business (50 or fewer emp.)

1/30/2019

"Extremely good opensoucre monitoring tool"

4.5/5

What do you like best about Prometheus?

Detailed monitoring of any metrics can be measured. Review collected by and hosted on G2.com.

What do you dislike about Prometheus?

The learning curve is bit steep and also there is no unique identifier for alerts generated by the Alertmanager. Review collected by and hosted on G2.com.

Recommendations to others considering Prometheus:

Prometheus is an essential tool for companies operating in the cloud and it's free, however the learning curve is bit steep and it might need some time to configure the system properly. Review collected by and hosted on G2.com.

What problems is Prometheus solving and how is that benefiting you?

Monitoring of our cloud micro services in our Kubernetes configuration and also the ability to forecast alerts based on the rate of existing system is really helpful. Review collected by and hosted on G2.com.