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ELK vs Splunk: What are the differences?
What is ELK? The acronym for three open source projects: Elasticsearch, Logstash, and Kibana. It is the acronym for three open source projects: Elasticsearch, Logstash, and Kibana. Elasticsearch is a search and analytics engine. Logstash is a server‑side data processing pipeline that ingests data from multiple sources simultaneously, transforms it, and then sends it to a "stash" like Elasticsearch. Kibana lets users visualize data with charts and graphs in Elasticsearch.
What is Splunk? Search, monitor, analyze and visualize machine data. Splunk Inc. provides the leading platform for Operational Intelligence. Customers use Splunk to search, monitor, analyze and visualize machine data.
ELK and Splunk can be primarily classified as "Log Management" tools.
According to the StackShare community, ELK has a broader approval, being mentioned in 53 company stacks & 14 developers stacks; compared to Splunk, which is listed in 31 company stacks and 29 developer stacks.
Pros of ELK
- Open source14
- Can run locally4
- Good for startups with monetary limitations3
- External Network Goes Down You Aren't Without Logging1
- Easy to setup1
- Json log supprt0
- Live logging0
Pros of Splunk
- API for searching logs, running reports3
- Alert system based on custom query results3
- Splunk language supports string, date manip, math, etc2
- Dashboarding on any log contents2
- Custom log parsing as well as automatic parsing2
- Query engine supports joining, aggregation, stats, etc2
- Rich GUI for searching live logs2
- Ability to style search results into reports2
- Granular scheduling and time window support1
- Query any log as key-value pairs1
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Cons of ELK
- Elastic Search is a resource hog5
- Logstash configuration is a pain3
- Bad for startups with personal limitations1
Cons of Splunk
- Splunk query language rich so lots to learn1