Hi everyone,

I am looking for expert advice on choosing the right database for a massive log analytics project. We already have our own infrastructure and server environment ready to host the solution.

Our Scale & Requirements:

• Data Volume: 600+ TB of log data per year, with a 5-year retention period.
• Ingestion: High-throughput, continuous real-time streaming.
• Query Performance: Blazing-fast, sub-second search and lookup speeds across historical data.
• Workload: Non-stop log writing while simultaneously executing fast queries.

The Goal:
Since we have the underlying infrastructure in place, we need a robust database engine that we can deploy locally to handle this specific type of large-scale log workload and long-term history efficiently.

Curious how others here are dealing with this. "Reduce cloud costs" often ends up meaning "move everything into one vendor's ecosystem," which just trades one lock-in problem for another.

We've been looking at approaches where workloads and data stay where they already are (private, on-prem, multi-cloud) and cost/performance gets managed at a layer above that, instead of physically migrating data just to fit a platform's architecture.

Disclosure: I work in this space professionally, so I have a bias here. Genuinely interested though, is anyone else solving the "stop paying a migration tax every time we switch platforms" problem, and how?

Hello Everyone ! I am as an QA automation in big data product. my work involves around creating automation suites for data integrity checks and automating regression cases for pipelines build .automating api for loading data into dashboard.
I am good at python. i want to move to data engineering. my day to day work involves GCP, bigquery,clickhouse,pubsub.
I am planning to learn the same.
I have started and completed the introduction to data engineering in google skills.
Any opensource tool/concept i should learn ?
any suggestion on sample project to build?
Any good resources from where i can learn?
Any you tube playlist i should follow?

Im backtesting my algo and as part of it I need last 2 years of dax ltp data, if it's free it would be really helpful. 5sec or 1 min data would be really good but worst case even 5min will do

Hey everyone I'm completely new to programming and want to work toward a career in Big Data. I've done some surface-level research, but the amount of conflicting advice out there is overwhelming , zero programming experience
What I'm trying to figure out: what programming language should i learn first python or SQL / tools / Certifications (currently studying the cs50 course) / What kind of project would actually impress someone hiring for a junior Big Data role

I’ve been thinking a lot about what separates a good data engineer from a strong one, and I want to hear your real hacks and tips.

For me, it all comes down to how well you design, build, and maintain data pipelines. A pipeline isn’t just a script moving data from A → B. A strong pipeline is like a well-oiled machine:

Reliable: runs on schedule without random failures

Monitored: alerts before anything explodes

Scalable: handles huge data without breaking

Clean & documented: anyone can understand it

Reproducible: works the same in dev, staging, and production

Here’s a typical pipeline flow I work with:

ERP / API / raw sources → Airflow (orchestrates jobs) → Spark (transforms massive data) → Data Warehouse → Dashboards / ML models

If any part fails, the analytics stack collapses.

💡 Some hacks I’ve learned to make pipelines strong:

1. Master SQL & Spark – transformations are your power moves.

2. Understand orchestration tools like Airflow – pipelines fail without proper scheduling & monitoring.

3. Learn data modeling – ERDs, star schema, etc., help your pipelines make sense.

4. Treat production like sacred territory – read-only on sources, monitor everything.

5. Embrace cloud tech – scalable storage & compute make pipelines robust.

6. Build end-to-end mini projects – from source ERP to dashboard, experience everything.

I know there are tons of tricks out there I haven’t discovered yet. So, fellow engineers: what really makes YOU a strong data engineer? What hacks, tools, or mindset separates you from the rest?

I’ve started thinking about changing my professional career and doing a postgraduate degree in Data Analytics & Big Data. What do you think about this field? Is it something the market still looks for, or will the AI era make it obsolete? Do you think there are still good opportunities?

I've been thinking about how companies are treating data engineers like they're some kind of tech wizards who can solve any problem thrown at them.

Looking at the various definitions of what data engineers are supposedly responsible for, here's what we're expected to handle:

1. Development, implementation, and maintenance of systems and processes that take in raw data
2. Producing high-quality data and consistent information
3. Supporting downstream use cases
4. Creating core data infrastructure
5. Understanding the intersection of security, data management, DataOps, data architecture, orchestration, AND software engineering

That's... a lot. Especially for one position.

I think the issue is that people hear "engineer" and immediately assume "Oh, they can solve that problem." Companies have become incredibly dependent on data engineers to the point where we're expected to be experts in everything from pipeline development to security to architecture.

I see the specialization/breaking apart of the Data Engineering role as a key theme for 2026. We can't keep expecting one role to be all things to all people.

What do you all think? Are companies asking too much from DEs, or is this breadth of responsibility just part of the job now?

I recently read a post where someone described the reality of Data Engineering like this:

Streaming (Kafka, Spark Streaming) is cool, but it’s just a small part of daily work. Most of the time we’re doing “boring but necessary” stuff: Loading CSVs Pulling data incrementally from relational databases Cleaning and transforming messy data The flashy streaming stuff is fun, but not the bulk of the job.

What do you think? Do you agree with this? Are most Data Engineers really spending their days on batch and CSVs, or am I missing something?

Hi everyone, I'm a 30y woman who has worked in scientific research at college for 9 years. I'm in the field of developmental psychology, but I've been in a lot of projects managing the data processing, treatment, cleaning, coding/programming in statistical software, and analysis in most of them. Mostly, I've been the one in charge, which has given me valuable experience in this field. I always liked that part of my work more than writing the articles or doing the phD itself. I'm close to the deposit of my phD and I'm clear about not continuing at college due to the precariousness and contractual instability it offers for youths. I'm considering reorienting my career to programming and big data, but I'm totally aware it's not an easy trip. I want to focus on this path because I really love to work with coding and data, and I want to reorient my career in that direction. That's why I want to ask you, as professionals in this sector:

Which certifications are needed for this? I should study the full degree, or are professional programs to be certified?

Are the companies oriented to demonstrable and proven skills, official certifications, or both?

How many months or years can it take to reorient to this world, realistically speaking?

What are the main programs or skills that are "a must" to access job offers?

What are the "non-written skills" that also led you to your first job positions?

Is big data a direct possibility, or might it be needed to accomplish first multi platform or other related certifications/paths?

I really appreciate any help you can provide. I'm willing to put in all the effort needed to become a data scientist or work in a related field in this area.