Nagios provides monitoring of all mission-critical infrastructure components. Multiple APIs and community-build add-ons enable integration and monitoring with in-house and third-party applications for optimized scaling.
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SolarWinds SQL Sentry
Score 9.0 out of 10
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SolarWinds SQL Sentry is designed to help data professionals optimize SQL Server database performance
in physical, virtual, and cloud environments. SQL Sentry delivers metrics to help users find and fix database performance problems
and provides scalability, boasting demonstrated success monitoring 800+ SQL
Server instances with one monitoring database. With
SQL Sentry, the user can monitor:
SQL Server
Azure SQL
Database
SQL Server
Analysis…
SQL Sentry has a dashboard and tools that better suit our needs as a business. The tab based layout we found was easier to use and for the layman to understand. The top SQL feature has been invaluable to us for locating problems in real time.
Nagios monitoring is well suited for any mission critical application that requires per/second (or minute) monitoring. This would probably include even a shuttle launch. As Nagios was built around Linux, most (85%) plugins are Linux based, therefore its more suitable for a Linux environment.
As Nagios (and dependent components) requires complex configurations & compilations, an experienced Linux engineer would be needed to install all relevant components.
Any company that has hundreds (or thousands) of servers & services to monitor would require a stable monitoring solution like Nagios. I have seen Nagios used in extremely mediocre ways, but the core power lies when its fully configured with all remaining open-source components (i.e. MySQL, Grafana, NRDP etc). Nagios in the hands of an experienced Linux engineer can transform the organizations monitoring by taking preventative measures before a disaster strikes.
This solution is perfect for a team with a large server count and, at least, moderate experience supporting a SQL Server environment. If the environment is smaller or the team has less experience working with SQL Server performance tuning methodologies, then the tool may be overwhelming for the users.
The Top SQL functionality has been extremely useful for identifying poorly performing queries by resource consumption.
The flexibility of creating your own Advisory Conditions has allowed us to integrate our custom internal alerts into a centralized dashboard and alerting platform.
Being able to highlight any chart on the dashboard and then tool-matching that window across all the other charts makes it much easier to correlate the different performance metrics against each other.
Nagios could use core improvements in HA, though, Nagios itself recommends monitoring itself with just another Nagios installation, which has worked fine for us. Given its stability, and this work-around, a minor need.
Nagios could also use improvements, feature wise, to the web gui. There is a lot in Nagios XI which I felt were almost excluded intentionally from the core project. Given the core functionality, a minor need. We have moved admin facing alerts to appear as though they originate from a different service to make interacting with alerts more practical.
Tuning advice: With all the graphs and data available, it's not always easy to determine the best thing to do. I'd like to see SentryOne provide some best practice analysis based on the historical information collected for the server being looked at.
They could add help tips or links to help documents, when you select a graph on the dashboard. Inexperienced users tend to put blinders on and focus on one thing when they see a high counter or something out of the ordinary. It would be very useful to include a link that provides underlying help. The link would provide an explanation of the counter in detail and offer possible explanations as to why the counter is off.
We're currently looking to combine a bunch of our network montioring solutions into a single platform. Running multiple unique solutions for monitoring, data collection, compliance reporting etc has become a lot to manage.
Absolutely. SQL Sentry is an absolute must have for any company with a SQL Server estate. It provides a force multiplier to effectively manage SQL Server, and the feature sets are second to none. The support and expertise at SentryOne is incredible. They are very supportive of both the platform users and helping your business with the product
The Nagios UI is in need of a complete overhaul. Nice graphics and trendy fonts are easy on the eyes, but the menu system is dated, the lack of built in graphing support is confusing, and the learning curve for a new user is too steep.
I accept that the flexibility of the alerting comes at a price. Other than the alerting SQL Sentry's interface is intuitive. Connecting to a new SQL instance, given that all the needed ports are open in your firewalls is straight forward. Reviewing the performance and queries for an instance is available in with a right click. As you dig in new tabs are created to present the detailed data. I find the ability to filter and rollup metrics on a query very helpful in dealing with the "it's running slow". You can easily compare the metrics of run times for the same query to let the user know, it's probably data your doing a billion reads instead of the usual 100 thousand.
The system is working perfectly in capturing data, but we do experience issues with SQL Timeout when viewing results in the remote clients. This may be due to the fact that our monitoring service is consuming most of the CPU, and it is the same server that is hosting the SQL Repository. We could probably fix the issue by separating the SQL instance from the monitoring service.
In most cases the pages load very quickly. In our particular case, we need to do some movement of services to separate our monitoring service to separate infrastructure from the repository. When we first started with SQL Sentry on 5 licenses, we did not have any issues. Since we have now grown that to 25, we are experiencing some challenges. We do not believe this to be a tool problem
I haven't had to use support very often, but when I have, it has been effective in helping to accomplish our goals. Since Nagios has been very popular for a long time, there is also a very large user base from which to learn from and help you get your questions answered.
From their infancy as a smaller company to now as a global player they have always kept focus on prioritising he customer. They know their product and the technology it supports and are easily accessible for both resolving problems with the product all the way to adding value through additional training and assisting with getting return on investment through utilisation of the many features the product provides.
Was suggested that we install the process monitors on a dev or qa database server, but we found it more useful to create an IT db server and put it there (along with a few other apps that we use for monitoring).
Because we get all we required in Nagios [Core] and for npm, we have to do lots of configuration as it is not as easy as Comair to Nagios [Core]. On npm UI, there is lots of data, so we are not able to track exact data for analysis, which is why we use Nagios [Core].
SQL Sentry offers more features and is customize-able to fit our business needs. It has more centralized management and support. The company's technical support is also top notch. It is also worth mentioning that SentryOne Team Blog is an excellent source. One can find lots of valuable troubleshooting skills on the blog site - very educational and informational.
We are running 25 instances through a single monitoring service and it is able to keep up. We are finding that this many instances in our environment is about as many as can be handled. We will need to deploy additional monitoring services. Luckily, there is no additional licensing costs to deploy additional monitoring services. For us, it's just an additional Azure VM.
With it being a free tool, there is no cost associated with it, so it's very valuable to an organization to get something that is so great and widely used for free.
You can set up as many alerts as you want without incurring any fees.
Better customer service as it alerts me automatically to loss of service issues so I can react and either get things fixed before it impacts the customers or to let my management know as soon as possible
It helps me find expensive SQL so our customers get better performance and we make better use of our resources
