LAB · MAPPING
Get the mapping right first
Fix an index whose mapping makes the required query impossible without a reindex.
> Search & Analytics · DevOpsSchool Training
Elasticsearch Training in Kolkata
Live online batches timed for IST (UTC+5:30), or corporate onsite across Kolkata — every session a live demo in a real lab, not slides.
★ 4.8 / 5 from 2,300+ ratings18,000+ engineers certifiedTrained teams at JPMorgan Chase, Verizon, Nokia, World Bank
Next batch—
TimezoneIST (UTC+5:30)
Modules5
Hands-on labs3
Engineers we've trained work atJPMorgan Chase · Bank of America · Wells Fargo · Verizon · Nokia · World Bank · GE Healthcare · VMware · Oracle · Qualcomm · Mercedes-Benz · Airbus · Datadog · Splunk · Deloitte · Infosys · Wipro · Capgemini
# upcoming batches
When the next Elasticsearch batch runs in Kolkata
Times shown in IST (UTC+5:30). New cohorts start on the 1st of every month.
| Starts | Days & time | Timezone | Mode | Duration | Seats | Enrol |
|---|---|---|---|---|---|---|
| —Most popular | Weekend · Sat · Sun 10:00 AM – 1:00 PM | IST (UTC+5:30) | Live online · Corporate onsite | 5 weekends | — of 10 left | Reserve |
| — | Weekday · Mon · Wed · Fri 8:00 – 10:00 PM | IST (UTC+5:30) | Live online · Corporate onsite | 5 weeks | — of 10 left | Reserve |
Batches are capped at 10 learners by design. We do not run a classroom in Kolkata — sessions here are live online, or onsite at your office for corporate batches.Need a date that isn't listed? Talk to us about a private batch →
# how you attend
Four ways to take this training — three of them available here
Live online
Individuals, anywhere
Scheduled instructor-led batch. Every session is a live demo in a real lab, and every session is recorded.
Reserve my seatCorporate onsite
Teams of 8–30
Custom agenda built from your stack, delivered at your office or online, in your timezone. NDA-friendly, invoiced against a PO.
Request a quoteSelf-paced video
Self-starters
The full recorded curriculum plus a year of the entire LMS — 20+ courses and 50+ tools, not just this one.
Enroll now# private batches
Private corporate batch for your team
We start with a discovery call, map your stack to the modules below, and drop anything your team already runs in production. Delivery is at your office, online, or hybrid — in your timezone, scheduled around your release calendar.
- Custom agenda built from your stack, not a fixed syllabus
- Teams of 8–30; larger cohorts split into parallel batches
- Recordings, lab repos and per-attendee certificates
- Attendance and assessment report for your L&D team
- PO, GST invoice and NDA handled before delivery
Already know what you need?
Send us the tools, the team size and a rough window. You'll get an agenda and a quote back, not a sales call.
# kolkata
Elasticsearch training in Kolkata
Elasticsearch training in Kolkata is taken mostly by engineers building search into an application and Operations teams running a logging stack. Sessions run live online in IST (UTC+5:30), or onsite at your office — there is no Kolkata classroom. Teams here often pair it with our Agile and Ansible training, and a corporate batch can cover more than one in a single engagement. Kolkata's technology employment is concentrated around Sector V and New Town, and the mix skews toward services delivery and back-office engineering for clients elsewhere. That has a direct effect on what a cohort needs: the working environment is usually a client's, the permissions are usually limited, and the value of the training is in being immediately useful inside constraints somebody else set. The city also has a large base of engineers moving into platform work from adjacent roles — support, database administration, application development — rather than arriving with the background already in place. Kolkata cohorts tend to want more time on fundamentals and on the reasoning behind a practice, and less on comparing tools. There is no DevOpsSchool classroom in Kolkata. Batches run live online in IST, which for most learners here is the format that fits around client working hours anyway, or onsite at your office in Sector V for corporate cohorts.
Teams we've trained here
How we deliver in Kolkata
We do not run a classroom in Kolkata. Batches here are live online, or onsite at your office for corporate cohorts.
Our two classrooms are in Bengaluru and Hyderabad.
Where our Kolkata learners come from
- Sector V, Salt Lake
- New Town / Rajarhat
- Park Street
- Bantala IT Park
- Kasba
- Dum Dum
# the subject
What is Elasticsearch?
Elasticsearch is a distributed search and analytics engine built on Lucene. Documents are indexed into shards spread across nodes; queries are executed in parallel and merged. The concepts that determine whether a cluster behaves are mappings, which decide how fields are analysed, shard sizing, and the difference between a query that scores and a filter that caches. Most production problems are capacity problems dressed as search problems: too many shards, mappings that exploded, or a cluster sized for yesterday.
Why it's in demand now
Search and log analytics remain hard to displace, and Elasticsearch sits underneath a great deal of both. The scarce skill is operational: sizing a cluster, designing an index lifecycle so old data ages out predictably, and diagnosing a red cluster at three in the morning. Query tuning matters too, but capacity is where teams get hurt.
# outcomes
What you'll be able to do
Design mappings that make the queries you need cheap
Size shards and indices for the data you actually have
Write queries and aggregations that answer real questions
Implement an index lifecycle so storage stays bounded
Diagnose a yellow or red cluster and restore it
# curriculum
5 modules. Live demos in a real lab, not slides.
Every module follows the same shape: 5 hrs · 2 assignments · 1 capstone.
01Installing and Setting up ElasticsearchLive & Interactive
DAY 1 First Half - Introducing Elasticsearch, Pre-requisites and Course Overview, A Brief History of Search, How Does Search Work?, The Inverted Index, Lucene, an Open Source Search Library, Introducing Elasticsearch, Installing and Setting up Elasticsearch
02Introducing the cURL Command Line UtilityLive & Interactive
Basic Concepts in Elasticsearch, Monitoring the Health of the Cluster, DAY 1 Second Half- Executing CRUD Operations Using the Elasticsearch APIs, Introducing the cURL Command Line Utility, Creating Indices, Adding Documents to an Index, Retrieving Whole and Partial Documents, Updating Whole and Partial Documents
03Deleting Documents and IndicesLive & Interactive
Deleting Documents and Indices, Performing Bulk Operations on Documents, Bulk Indexing of Documents from a JSON File, DAY 2 First Half - Executing Search Requests Using Elasticsearch Query DSL, Recap: How Search Works, The Query and Filter Context, Setting up Fake Data for Queries, Search Using Query Params
04Term Queries and the Boost ParameterLive & Interactive
Search Using the Request Body, Source Filtering Document Contents, Full Text Searches, The TF/IDF Algorithm for Relevance, Queries with Common Terms, Boolean Compund Queries, Term Queries and the Boost Parameter, Search Using the Filter Context
05The Filter and Filters Bucketing AggregationsLive & Interactive
DAY 2 Second Half - Executing Analytical Queries Through Aggregations, Types of Aggregation, Implementing Metric Aggregations, The Cardinality Aggregation, Implementing Bucketing Aggregations, Multi-level Nested Aggregations, The Filter and Filters Bucketing Aggregations
★Final certification examLive & Interactive
Open-book, scenario-based, taken in the LMS. Two free re-attempts and detailed feedback.
# hands-on
3 labs you build on your own cloud account
We don't hand out a sandbox that expires. You provision your own free-tier environment with our guidance, so the setup skill goes with you.
LAB · SHARDS
Size it for reality
Take an over-sharded cluster and reshape it, measuring the effect.
LAB · RECOVER
Bring back the red cluster
Diagnose and recover a cluster with unassigned shards.
# toolchain
The tools you'll actually touch
ElasticsearchKibanaLogstashBeatsIndex lifecycle managementMappingsAggregationsLuceneOpenSearch
Who this is for
- Engineers building search into an application
- Operations teams running a logging stack
- Data engineers building analytics on document data
- Anyone inheriting a cluster that is misbehaving
Pre-requisites
- Comfortable on a Linux shell
- Understanding of JSON and HTTP APIs
- Some data you want to search
How you're assessed
- Two assignments per module, reviewed by the instructor
- One capstone per module, pushed to your own GitHub
- 3 hours · online · open-book · scenario-based
- Two free re-attempts, with feedback
# pricing
Pick the level of support that fits
Self-paced video
₹833/mo
billed yearly ₹9,996
All recorded sessions, labs and the full LMS — at your own pace.
- Full 100+ hour recorded curriculum
- Hands-on capstones on your own cloud lab
- 1-year access — recordings, labs and updates
- 3-hr online open-book exam
- Certificate on completion
- Lifetime forum support
- Full LMS access — 20+ courses & 50+ tools
MOST POPULAR
Live & Interactive
₹34,999₹49,999SAVE 30%
works out to ₹2,917/moIllustrative monthly equivalent. The full amount is charged once at enrolment; we do not offer instalments.
5-week live cohort plus the complete LMS bundle.
- Everything in Self-paced
- 5-week cohort · 60+ hrs live instructor classes
- Weekly mentor office hours
- Cohort community and alumni access
- Capstone code review by the instructor
- Exam preparation and mock papers
- Lifetime forum support
- Full LMS access — 20+ courses & 50+ tools
1-on-1 Mentorship
₹99,999
works out to ₹8,333/moIllustrative monthly equivalent. The full amount is charged once at enrolment; we do not offer instalments.
A dedicated senior practitioner. Pace, schedule and labs tailored to you.
- Everything in Live & Interactive
- Private 1-on-1 instructor on your schedule
- Custom curriculum and labs for your stack
- Résumé and LinkedIn review
- Mock interview and salary negotiation prep
- Priority response from the instructor
- Lifetime forum support
- Full LMS access — 20+ courses & 50+ tools
+ GST 18% as applicable · Prices are charged in INR.
Cohort-cancellation refund
If we cancel or postpone a cohort and you decline the rescheduled session, you get a 100% refund within 15 days. Refund policy →
Terms & course material
Recordings, slides and lab repos are licensed to you for your own learning. Terms →
Your data stays with us
We don't share your details with third parties. Privacy →
# who teaches it
Taught by practitioners who run this in production
Rajesh Kumar — Principal DevOps Engineer & Architect
Twenty years across DevOps, SRE and security, in principal and architect roles at PayPay, SoftwareAG, ServiceNow, Intuit, Adobe and IBM. Has personally trained more than 10,000 engineers at JPMorgan Chase, Verizon, Nokia, the World Bank and dozens more. He teaches what he runs, not what he reads.
The wider faculty
# the credential
What you walk away with
- An industry-recognised digital certificate, verifiable on our site
- One capstone per module, public on your own GitHub
- A hard copy on request
- Lifetime access to the DevOpsSchool forum
Certificate of Completion
Your Name
Elasticsearch Training in Kolkata
DS-ELASTI-XXXX-XXXX
# reviews
What learners say
4.8 / 5 from 2,300+ ratings.
Reviews for this program are being collected from public sources. Every review shown here links to the original.
# alternatives
How this compares
| What matters | YouTube + blogs | Generic online course | Local training institute | DevOpsSchool |
|---|---|---|---|---|
| Teaching method | Unstructured, no sequence | Pre-recorded slides | Slide-led classroom | Live demos in a real lab |
| Batch size | n/a | Unlimited | 30–60 | Capped at 10 |
| Lab environment | Yours to figure out | Shared sandbox that expires | Shared lab | You build your own — the skill goes with you |
| Per-tool structure | None | Video only | Varies | 5 hrs · 2 assignments · 1 capstone |
| Assessment | None | Quiz | Attendance | 3 hours · online · open-book · scenario-based |
| Certificate | None | Auto-issued | Attendance certificate | Industry-recognised, verifiable |
| Corporate invoicing | No | Card only | Sometimes | PO, GST invoice, NDA |
| Post-training support | None | Forum for 30 days | None | Lifetime forum support |
| Total cost | Free, and it costs you months | Low, low completion | High | One fee, LMS included |
# questions
Frequently asked questions
Do you run classroom batches in Kolkata?
No. We do not have a training centre in Kolkata, and we would rather say so than let you plan a commute. Batches here run live online, or onsite at your own office for corporate cohorts. Our two classrooms are in Bengaluru and Hyderabad.
What time do the sessions run in Kolkata?
Sessions run in IST (UTC+5:30), which is local time for you: the weekend cohort at 10:00–13:00 on Saturday and Sunday, and the weekday cohort at 20:00–22:00 on Monday, Wednesday and Friday. Most Kolkata learners take the weekend batch because it does not collide with a release window.
Where do your Kolkata learners usually travel from?
Most Kolkata attendees work in Sector V, Salt Lake, New Town / Rajarhat, Park Street, Bantala IT Park, Kasba or Dum Dum. We mention it because there is no Kolkata classroom to travel to: batches run live online, and for corporate cohorts we come to your office in whichever of those areas you are in.
Is the Elasticsearch content different for Kolkata?
The curriculum is the same everywhere — it is the same course, and pretending otherwise would be dishonest. What changes for Kolkata is delivery: the batch times are set for IST (UTC+5:30), fees are shown in INR, and delivery is live online or onsite at your office rather than in a classroom. The examples our instructors reach for also tend to follow what Kolkata teams actually run.
Do you provide a lab environment for Elasticsearch?
No, and that is deliberate. You build the labs on your own free-tier account, and we walk through the setup and the cost guardrails in week one. A sandbox that expires when the course ends teaches you nothing you keep; your own environment does.
What if I miss a session?
Every session is recorded and available in the LMS the same day, and you keep access for a year. You can also sit the missed session again with the next cohort at no extra cost.
What do I need to know before starting Elasticsearch?
Comfortable on a Linux shell; Understanding of JSON and HTTP APIs; Some data you want to search. If you are unsure whether you are ready, tell us what you work on now and we will give you a straight answer rather than a sales one.
Is there a certificate, and is it worth anything?
You get an industry-recognised DevOpsSchool certificate after the three-hour open-book exam. Most people find the capstone repositories carry more weight in an interview than the certificate itself, which is why the labs are built to be shown.
Can you run Elasticsearch as a private batch for our team?
Yes. We build the agenda from your stack after a discovery call and drop anything your team already runs in production. Teams of 8 to 30 work best; larger groups split into parallel batches.
What is your refund policy?
If we cancel or postpone a cohort and you decline the rescheduled session, you get a full refund within 15 days. We do not offer a general money-back guarantee, and taxes and gateway fees are not refunded.
Do you offer instalments or EMI?
No. The fee is charged once at enrolment. Where we show a monthly figure it is arithmetic to help you size the cost against a budget, not a payment plan.
# keep learning
Free Elasticsearch resources
Everything below is open and free — no enrolment needed.
# in the room
Training gallery
# ready when you are
Reserve your Elasticsearch Training in Kolkata seat — or ask first.
- No spam, and no sales script
- Curriculum in your inbox in 60 seconds
- A human reply within 4 hours