Graylog vs. Splunk

Graylog is ranked 6th in Log Management with 7 reviews vs Splunk which is ranked 1st in Log Management with 47 reviews. The top reviewer of Graylog writes "Provides the ability to write custom alerts, which are key to information security and compliance". The top reviewer of Splunk writes "Monitors all machine logins and actions taken on those machines under each user". Graylog is most compared with ELK Logstash, Splunk and AlienVault. Splunk is most compared with IBM QRadar, LogRhythm NextGen SIEM and ArcSight. See our Graylog vs. Splunk report.
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Quotes From Members Comparing Graylog vs. Splunk

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
Pros
Real-time UDP/GELF logging and full text-based searching.UDP is a fast and lightweight protocol, perfect for sending large volumes of logs with minimal overhead.Storing logs in Elasticsearch means log retrieval is extremely fast, and full text search is available by default.We run a containerized microservices environment. Being able to set up streams and search for errors and anomalies across hundreds of containers is why a log aggregation platform like Graylog is valuable to us.Allowing us to set up alerts and integrate with platforms we already use, such as Slack and OpsGenie to alert users of these errors proactively, is also a very useful feature.It is used as a log manager/SIEM. It provides visibility into the infrastructure and security related events.The build is stable and requires little maintenance, even compared to some extremely expensive products.We have scaled from a single machine installation (a VM with a Graylog + ES + MongoDB) to (2 Graylog + 2 ES + 3 MongoDB). This was done smoothly with a minimal impact on logging.

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With good domain knowledge, one can build almost anything. If you throw in Alert Manager or an integration with ServiceNow. Then, you have your own SIEMOur clients are easily able to modify and evolve their implementations.Positive features include replication capabilities, software development kits, and the architecture.It is a one stop shop as a full monitoring and alerting solution for operations and application analysis for most of our back-end systems.We used it to create a custom anomaly detection data model to monitor the activity of our back-end services on an hourly basis relative to the past three months of activity.Splunk UBA is useful for fraud detection and for detection of APTs, advanced persistent threats.UBA, User Behavior Analytics, is a key feature.We can ingest and correlate data from virtually any type of system.

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Cons
More complex visualizations and the ability to execute custom Elasticsearch queries would be great.With technical support, you are on your own without an enterprise license.Elasticsearch recommendations for tuning could be better. Graylog doesn't have direct support for running the system inside of Kubernetes, so it can be challenging to fill in the gaps and set up containers in a way that is both performant and stable.We ran into problems with Elasticsearch throwing a circuit-breaking exception due to field data size being too large. It turned out that the heap size directly impacted this size in a high-throughput environment, causing unexplained instability in Graylog. We were able to troubleshoot on the Elasticsearch size, but we should have been able to reference some minimum requirements for Graylog to know that our settings weren't sufficient.Since container orchestration systems are popular and Graylog fits the niche well, perhaps they could officially support running in docker containers on Kubernetes as a StatefulSet as a use case. That way, the declarative nature of Kubernetes config files would document their best case deployment scenario-Dashboards, stream alerts and parsing could be improved.Over six months, I had two similar issues where searches were performed on field "messages". It exhausted all the memory of the ES node causing an ES crash and a Graylog halt.There should be some user groups and an auto sign-in feature.​

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It needs a better way to export dynamic views without requiring a ton of code and user/pw.It needs integration with a configuration management solution.It needs integration with a configuration management solution.The solution could use a different licensing model.An improved user interface along with multi-tenancy support would be beneficial.It needs to improve the way to install third-party apps and enable installation without logging into splunk.com.I think the machine learning should be emphasized. Now, it's really important to analyze Big Data, data mining. A SIEM solution, like Splunk, needs an improved data mining solution, artificial intelligence.Missing capability for audio/video and image processing.

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Pricing and Cost Advice
​You get a lot out-of-the-box with the non-enterprise version, so give it a try first.Consider Enterprise support if you have atypical needs or setup requirements.​If you want something that works and do not have the money for Splunk or QRadar, take Graylog.​​I am using a community edition. I have not looked at the enterprise offering from Graylog.Having paid official support is wise for projects.

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It is possible to use a developer's license, which is up to 10GB per day of volume traffic, which is usually enough for most use cases.Free Splunk license for PoCs on personal machines and the ability to scale the PoC to an enterprise level app.It can be expensive, especially the licensing costs. However, there is added value in what it can do, not just log aggregation.Splunk is a bit pricier, but the benefits and ROI are huge.It is a pretty high cost solution, but if your organization has the funds, it can bring many benefits.Personnel costs are saved by not having to involve the domain developers from multiple teams when tracing a problem that spans multiple platforms.Truly evaluate the data you want to ingest and go slow. Pulling in data that can provide no use to your mission only wastes data against your license.Our ROI is high.

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Ranking
RANKING
Views
6,974
Comparisons
5,942
Reviews
7
Followers
103
Avg. Rating
8.4
Views
103,815
Comparisons
67,086
Reviews
47
Followers
2,787
Avg. Rating
8.8
Top Comparisons
Top Comparisons
Compared 50% of the time.
Compared 28% of the time.
Compared 6% of the time.
See more Graylog competitors »
Compared 19% of the time.
Compared 13% of the time.
Compared 8% of the time.
See more Splunk competitors »
Also Known As
Also Known AsGraylog2
Website/Video
Website/VideoGraylog
Splunk
Overview
Overview

Splunk software has been around since 2006 and the company has since grown to become an industry leader. Splunk's vision is to make machine data accessible, usable and valuable to everybody. The company offers a wide range of products to turn machine data into valuable information by monitoring and analyzing all activities. This is known as Operational Intelligence and is the unique value proposition of Splunk.

Splunk is well-known for its Log Management capabilities and also for its Security Information and Event Management (SIEM) solutions.

OFFER
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Learn more about Splunk
Sample Customers
Sample CustomersBlue Cross Blue Shield, eBay, Cisco, LinkedIn, SAP, King.com, Twilio, Deutsche Presse-AgenturSplunk has more than 7,000 customers spread across over 90 countries. These customers include Telenor, UniCredit, ideeli, McKenney's, Tesco, and SurveyMonkey.
Top Industries
Top Industries
No Data Available
REVIEWERS
Financial Services Firm
20%
Energy/Utilities Company
14%
Retailer
14%
University
9%
VISITORS READING REVIEWS
Financial Services Firm
17%
Comms Service Provider
10%
Energy/Utilities Company
7%
Manufacturing Company
6%
Company Size
Company Size
No Data Available
REVIEWERS
Small Business
21%
Midsize Enterprise
13%
Large Enterprise
67%
VISITORS READING REVIEWS
Small Business
14%
Midsize Enterprise
19%
Large Enterprise
67%
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