Likelihood to Recommend Perfect for projects where
Elasticsearch makes sense: if you decide to employ ES in a project, then you will almost inevitably use LogStash, and you should anyways. Such projects would include: 1. Data Science (reading, recording or measure web-based Analytics, Metrics) 2. Web Scraping (which was one of our earlier projects involving LogStash) 3. Syslog-ng Management: While I did point out that it can be a bit of an electric boo-ga-loo in finding an errant configuration item, it is still worth it to implement Syslog-ng management via LogStash: being able to fine-tune your log messages and then pipe them to other sources, depending on the data being read in, is incredibly powerful, and I would say is exemplar of what modern Computer Science looks like: Less Specialization in mathematics, and more specialization in storing and recording data (i.e. Less Engineering, and more Design).
Read full review Pros: Splunk is very well suited if you have multiple log sources of related data. All of them can be correlated and tasks can be automated based on the requirement. Other than alerts, Splunk can also run a specific script of your choice, based on some defined conditions. Cons: If you have a few logs but a large number of log sources, Splunk can be very expensive.
Read full review Pros Logstash design is definitely perfect for the use case of ELK. Logstash has "drivers" using which it can inject from virtually any source. This takes the headache from source to implement those "drivers" to store data to ES. Logstash is fast, very fast. As per my observance, you don't need more than 1 or 2 servers for even big size projects. Data in different shape, size, and formats? No worries, Logstash can handle it. It lets you write simple rules to programmatically take decisions real-time on data. You can change your data on the fly! This is the CORE power of Logstash. The concept is similar to Kafka streams, the difference being the source and destination are application and ES respectively. Read full review Real-time + Scheduled alerts - i-e you can set up alerts which are actively monitoring your logs Pretty good response time for search results. With our key/value logging, Splunk makes it blazing fast to query the data. Dashboards provide insights into historical data Love how Splunk indexes all of the data and provides keys to search on Read full review Cons Since it's a Java product, JVM tuning must be done for handling high-load. The persistent queue feature is nice, but I feel like most companies would want to use Kafka as a general storage location for persistent messages for all consumers to use. Using some pipeline of "Kafka input -> filter plugins -> Kafka output" seems like a good solution for data enrichment without needing to maintain a custom Kafka consumer to accomplish a similar feature. I would like to see more documentation around creating a distributed Logstash cluster because I imagine for high ingestion use cases, that would be necessary. Read full review At times some queries can run slowly if indices are not on a portion of the query you use. Setup time initially can be difficult if your logs aren't stored in common locations or in a common way to write the log. Ability to ingest logs from different locations without having to change code to put logs in a certain place (pro and con). Searches can be a bit more difficult to look through if your log isn't pulled in a manner that is easy to read through splunk. Read full review Likelihood to Renew We are using Splunk extensively in our projects and we have recently upgraded to Splunk version 6.0 which is quite efficient and giving expected results. We keep track of updates and new features Splunk introduces periodically and try to introduce those features in our day to day activities for improvement in our reporting system and other tasks.
Read full review Usability You can literally throw in a single word into Splunk and it will pull back all instances of that word across all of your logs for the time span you select (provided you have permission to see that data). We have several users who have taken a few of the free courses from Splunk that are able to pull data out of it everyday with little help at all.
Read full review Reliability and Availability When properly setup and configured, Splunk is extremely reliable.
Read full review Support Rating Splunk maintains a well resourced support system that has been consistent since we purchased the product. They help out in a timely manner and provide expert level information as needed. We typically open cases online and communicate when possible via e-mail and are able to resolve most issues with that method.
Read full review Online Training The online course was simple clear and described the main capabilities of the solution. There is also an initial module that can be done for free so anyone can familiarize themselves with the functionality of this solution. On the other hand, however, there could be more free online courses. Maybe even with a certificate, this would broaden the group of people who are familiar with the platform while increasing familiarity with the solution itself.
Read full review Implementation Rating Smooth without too many major issues.
Read full review Alternatives Considered MongoDB and
Azure SQL Database are just that: Databases, and they allow you to pipe data into a database, which means that alot of the log filtering becomes a simple exercise of querying information from a DBMS. However, LogStash was chosen for it's ease of integration into our choice of using ELK
Elasticsearch is an obvious inclusion: Using Logstash with it's native DevOps stack its really rational
Read full review I wanted to learn a new language that I can quickly master and implement. Splunk is easy, fun to use and best of all, it can be developed in hours not days or weeks. Splunk is fundamentally a programming language that is minimal but yet powerful enough to collect, analyze and visualize data.
Read full review Scalability Splunk can scale in to the petabyte per day range which of course is awesome
Read full review Return on Investment Positive: Learning curve was relatively easy for our team. We were up and running within a sprint. Positive: Managing Logstash has generally been easy. We configure it, and usually, don't have to worry about misbehavior. Negative: Updating/Rehydrating Logstash servers have been little challenging. We sometimes even loose data while Logstash is down. It requires more in-depth research and experiments to figure the fine-grained details. Negative: This is now one more application/skill/server to manage. Like any other servers, it requires proper grooming or else you will get in trouble. This is also a single point of failure which can have the ability to make other servers useless if it is not running. Read full review Overall very positive. It has provided visibility to what is going on within our network. One drawback is the time it takes to get up to speed with the application, but this is up to the user, and Splunk education is excellent. In my field, IT Security, there are few other friends to have in your back pocket better than Splunk. They are just that good. Read full review ScreenShots