Elastic Stackのレビュー

Elastic Cloud on Kubernetes for best scalability

製品を使ってみた感想： Organizing chat data to be searchable and log management to proactively fix issues.

良いポイント:

One of the best features I like is that Elastic built their own kubernetes operator to extend the k8s orchestration and make it easy to deploy, scale, change, secure and configure hot-warm infrastructures. Their operator saves a ton of time during configuration. I have deployed stacks on different k8s architectures like Azure Kubernetes Service, Amazon Elastic Kubernetes Service and small on prem clusters with microk8s without issues. When we reach performance thresholds we add more elastic nodes and ECK secures and joins it to the cluster and in minutes we can leverage the extra compute. A lot of changes that are done after going to PROD are non-disruptive since ECK is aware of the main node and makes sure to pass the master role before the main one is re-deployed. I have also migrated Elastic Cloud Enterprise deployments running on bare metal and the stability of ECK is unmatched.

改善してほしい点:

Currently it is not recommended or supported for a PROD cluster to do its own self monitoring so you have to deploy a monitoring cluster. In cloud scenarios this adds costs and extra complexity so it will be great to have this feature supported.

A very good stack to store and visualize data.

製品を使ってみた感想： Overall I am happy with my decision to choose Elastic Stack. It is completely fulfilling my requirements without any issues.Kibana works very well even with a lot of data.

良いポイント:

I mostly like the Elastic Search queries. Those follow a certain standard and work very well. Data retrieval is very easy and fast in Elastic Search.Visualizing data thru Kibana is very smooth and straightforward. It supports a couple of inbuilt dashboards to represent the data nicely.

改善してほしい点:

Nothing to dislike about Elastic Stack. The only thing is configuration and setup should be correct. It could take some time for beginners.

This powerful tool allows you to take data from any source and format to search and analyze.

良いポイント:

It is a super fast and efficient data extraction tool. Recommended for medium-sized projects. Handles large amounts of data, is scalable.

改善してほしい点:

Usable from any device, however these must be state-of-the-art and offer great calculation speeds and ram storage.

Elastic Stack - A Complete Package for Big Data Visualizations and Fast Data Query!

製品を使ってみた感想： Elastic Stack is a powerful platform which allows you to quickly search and query on the data even if the data is in huge volume, thanks to its distributed computing and storage. it has enabled me to develop an application which fetches results from TBs of data in seconds.

良いポイント:

1.Allows Faster searching and query operations 2.Provides with easy data visualization for analysis 3.Support for multiple data sources 4.Good SDK support for quick integration with application 5.Scalable as per the requirement with support of kubernetes

改善してほしい点:

1.UI is simple ,could be made more robust and dynamic 2.Calculations and processing speed can be further improved 3.Proper usage knowledge is required when using it on scalable platforms

The perfect searching allied to a RDB

製品を使ってみた感想： We've been pairing Elasticsearch with a traditional RDB in many projects with great results. This way we don't compromise our data reliability and searching speed is blazing fast.

良いポイント:

Searching is where elasticsearch is second to none, either in terms, n-grams or full-text. Latest releases have greatly improved the aggregation performance, so it's also a great fit for analytics workloads. The customizable sharding and replica configurations make is very reliable too.

改善してほしい点:

Searching and joining different documents has room for improvement, it's usualy not as fast as we would like it to be, so most of the times we end up un-normalizing documents and en-richening their data to boost searching performance.

Best for Website Monitoring, Event Management and Log Analysis.

製品を使ってみた感想： This lightweight, yet powerful, modern SIEM is well-suited for the modern security operations center as it can handle a wide range of activities with ease. elastic Stack is a powerful and flexible SIEM with feature-rich out-of-the-box tools that make it easy to get the job.

良いポイント:

We are using ELK Stack SIEM, a scalable aggregation engine that helps us find patterns in our data as well as provides a wide array of customizable analytics and reports. With Elastic Stack, we have a better understanding of flaws and security issues, particularly memory tier support that ensures the security of our data and networks.

改善してほしい点:

It is very challenging and time-consuming to upgrade cluster node roles and data replication.

Excellent Tool When Used Correctly

良いポイント:

Elasticsearch simplifies data queries and integration with user interfaces. Describing the records as JSON makes updates as simple as modifying your JSON format. The query builders make selecting complex data relationships easy to construct.

改善してほしい点:

As designed and by default, Elastcsearch does not immediately synchronize data between server nodes. Updates and inserts to records take time to reconcile which can cause some data integrity issues with frequent updates. ES is not the best tool to take bulk or rapid changes to the data. It is a great tool for retrieving data. The best combination is to use a SQL database for CRUD operations and replicate/synchronize the data to Elasticsearch for user interface/reporting.

Reliable and easy to use tech stack

製品を使ってみた感想： It's an easy choice when complex queries are involved, if cost is a secondary factor.

良いポイント:

Natural language processing like stemming, removing stopwords, multilingual search, tokenized storage etc.

改善してほしい点:

When there is a large text searches, the elastic search sometime crashes. This needs to be optimized.

Easy to monitor logs

良いポイント:

Using elastic stack I can easily track my application logs.

改善してほしい点:

I liked almost all the features but there is still scope in the dashboard.

Infinitely scalable search solution

製品を使ってみた感想： We use it to store and analyze in real time network traffic for our custom L4 firewall.

良いポイント:

Handles a ton of traffic without issues given enough hardware

改善してほしい点:

Hardware requirements might be too much for little deployments.

A complete stack for full text search

製品を使ってみた感想： Elasticsearch might be overkill if you are working with a small or mid-sized applications. However it's a serious solution for big-scale apps that are dealing with millions of records. The setup of the Elasticsearch might seem easy, but the maintenance is not. If you have simpler needs, I would suggest the full-text search functionality of modern PostgreSQL versions.

良いポイント:

Elasticsearch is quite powerful and fast. You can implement it to any enterprise software independent of the scale. It's well documented and getting frequent updates. It's also a reliable software that you can use in mission-critical operations.

改善してほしい点:

Breaking changes between different versions are hard to deal with. Each major version upgrade of ElasticSearch is bringing new functionality, improved security, and speed - but at the same time, it requires you to update your indexes, which is not an easy task if you don't have a strong infrastructure team.

Working On Big Data Is Now More Comfortable

製品を使ってみた感想： Our company uses elasticsearch to analyze data in very large data. Successful indexing is designed in a cluster (node) structure, which has made our work much easier. Thanks to this search engine, we can reach the desired analysis results in the data. It is a blessing for our sector employees to have a free application running in this performance.

良いポイント:

Flexibility and high performance are the most loved features for us. The fact that we are not using it very effectively is also a ramen of suggestions and guidance.

改善してほしい点:

The only feature I don't like is that it is Java based.

Elasticsearch is a general purpose search engine that can do much more than search

製品を使ってみた感想： We use Elasticsearch to filter and sort search results in our marketplace. We've built out many complicated queries that allow us to do interesting things like geo-based queries, personalization, and time boxed deals.

良いポイント:

Elasticsearch offers a very flexible system for adding search capability to your systems. It is also capable of much more. The REST API and great documentation makes getting started very simple. Elasticsearch was also designed with scaling in mind. Adding nodes and self balancing is quite easy. AWS offers hosted Elasticsearch that makes spinning up your first cluster as simple as a few clicks.

改善してほしい点:

Writing complicated queries can be quite tedious at times. The JSON interface is not always easy to read when trying to match up parentheses. Upgrading from older versions is not a simple process.

Elastic Stack for Application Logs

製品を使ってみた感想： Elastic Stack is an open source full stack solution for logs of modern day big data applications processing logs with its different applications of Logstash, Elastic and Kibana. We are using it to read through application logs, storing logs data and using dashboard to easily navigate thru the big chunk of files. Its an amazing combo of applications, completely free of cost with easy implementation and powerful online support.

良いポイント:

1. End to End Solution of enterprise logs with services such as Logstash, Elastic and Kibana. 2. Strong User Community and support. 3. Easy to use and implement. 4. Proactive updates on possible downtimes. 5. Dashboards for easy navigation.

改善してほしい点:

1. Cloud performance is slower than on premises installation. 2. It crashes in between which delay things sometimes.

Powerful stack for event collection, management and visualisation

製品を使ってみた感想： A solid product with a rich feature set, if you get past the initial setup complexity.

良いポイント:

Provides great features for log ingestion, normalisation and visualisation. Has a free open source tier which can be used to cover many use cases. Visualisation options are diverse and powerful. Solid community support in forums.

改善してほしい点:

Initial setup can be tedious and is rather complex. The provided security ruleset tends to produce many false positives and requires fine tuning. Log ingestion options are not entirely covered by the web user interface.

Tolles Produkt - Misserables Firmengebaren

製品を使ってみた感想： Der Elastic Stack mit 15 Nodes betreiben wir OnPrem als zentrales Logfile-Monitoring für unzählige Systeme.

良いポイント:

Die search engine ist der Hammer. Die Software funktioniert gut, zuverlässig und performant.

改善してほしい点:

In 4 Jahren hat 3 mal der Firmensitz gewechselt, letztes mal ins Ausland. Cowboy-Manieren beim Vertragsverlängerung - friss unsere AGBs (in Business-English) oder stirb. Ständig wechselnde Ansprechpartner. Rechnungen mit wechselnden Kontoverbindungen.

Elasticsearch Makes Big Data Possible

製品を使ってみた感想： We've dramatically improved the stability of our big data analytics compared to any other data store we've used.

良いポイント:

Elasticsearch is the single most valuable tool I have come across in my career for solving big data problems. No other datastore scales as well and as easily as ES. The premium features that come with a license are extremely powerful and definitely make a case for upgrading beyond just the need for support like most database solutions.

改善してほしい点:

Elasticsearch definitely has a significant learning curve for developers and administrators experienced with a more relational database solution. However with some time and with the aid of the fantastic UI Kibana these hurdles are small in comparison to the power you can reap.

Elastic Stack is the best for Business

製品を使ってみた感想： we use elastic stack to integrated with elastiflow to track all the traffic destination, protocol log, and other activity inside network, it very nice and work well, and produce the nice dashboard and clear view.

良いポイント:

the very powerful search engine I search around 5 million log in a second only. Very nice real-time dashboard, I can integrated with other software and see all the view of network traffic, traffic flow very well.

改善してほしい点:

well I would say, it's pretty good already, but still some function need to use command alot.

Distributed Search and analytics engine available in cloud

製品を使ってみた感想： Best search and analytics software available in cloud, flexible to use and available free trial to evaluate it.

良いポイント:

This is best search software for data searching and analytics on stream data in cloud. It is so flexible complex keyword searches and very efficient. Great tool for analyzing logs very powerful. 24/7 customer support.

改善してほしい点:

Not really a negative side but if you have low bandwidth web interface will become very slow.And think learning manual still needs some improvement.

My favorite BI & SIEM Tool

製品を使ってみた感想： overall i am delighted to have chosen this application, it solved many of our problems

良いポイント:

Lightening fast, we built BI dashboards and the 5 years reports data gets populated within seconds that would otherwise takes hours traditionally database or BI tool

改善してほしい点:

Very Big learning curve, first tie deployment takes very long time to make it work perfectly and then optimize it. need very good technical expertise

Using Kibana

良いポイント:

We user Kibana's dashboard and also part of it for data analysis of our tool. It allows us to look and compare historical data and gives us a great visualisation, analytic tools and data sharing options of all the data collected by our scanner.

改善してほしい点:

I enjoy working with the tool, however, I am missing quite some UX design improvements that could really improve the interaction with Kibana. Moreover, I could use an option of saving the templates or most recent types of searches into some kind of database so we would not need to setup these all over again.

One of the Best No sql Document Base Database

製品を使ってみた感想： In our projects, we use elasticsearch in database queries that need fast answers. It is especially useful for search and autocomplete operations.

良いポイント:

When you want to run queries in big data and get results, you can get results much faster from relational databases. Queries are also easy to create

改善してほしい点:

We sometimes have problems during the integration of Kibana. But we couldn't figure out why Other than that, I didn't have any problems

One of the best , simple log analytics and searching tool.

製品を使ってみた感想： Best for searching, log analytics, and visualization software available in the market. The integration of Elastic Search, Logstash, and Kibana makes it one of the best overall software to manage and visualize and analyze logs.

良いポイント:

It is very easy to deploy using docker containers and Kubernetes support. It's very easy to query a high volume of data and get results in seconds. Its easy-to-use UI is self-explanatory and also the forum support and documentation are quite helpful.

改善してほしい点:

Sometimes it crashes in between. Query structure is somewhat completed, and can be made simple with more specific examples to use directly in projects.

Have too much data to your database?

製品を使ってみた感想： Our application makes many filters for too much data, without Elasticsearch it just stops

良いポイント:

- Almost 100% of uptime - Great support - Really fast and easy to use for any application - Easy to configure

改善してほしい点:

- The cost of product may inviabilize it's use for small applications or companies - If the configuration goes wrong it may really affect the speed

Best product for search and aggregations

製品を使ってみた感想： Great full text capabilities.
Highly scale able .
Good documentation.
Good set of libraries.

良いポイント:

The search is very good and very fast in response. Documentation is very good for writing NoSQL queries. Libraries are there for 90% of popular languages.

改善してほしい点:

It would be good to create a standardization for NoSQL. It would be great, Elastic search provides IDE to write the queries rather than editors.