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जगतजननी माता पर अटूट विश्वास उनके भक्तों में नई चेतना और स्फूर्ति का संचार करने वाला है।
youtube.com/watch?v=fRYPwN…
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grojappa Yes—my Kafka+Redis CQRS setup fully supports random access/queries. Consumers project events in real-time into Redis structures (hashes for O(1) ID lookups, sorted sets for ranges, etc.) giving sub-ms reads.
It's a proven, scalable approach used by Uber, Netflix, LinkedIn for high-throughput event-driven systems. Horizontally scales by adding Kafka brokers, consumers, or Redis shards. For complex ad-hoc SQL, feed to Elasticsearch. No RDBMS required unless you specifically need it.
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This is why you avoid direct connections to Postgres.
Benchmarked PG running on a r8g.2xlarge (8 vCPU + 64GB ram) with connections ranging from 8 → 2048. Clearly a sweet spot at 64 with degrading perf thereafter.
Apps often need 1000s of connections. Scale with a proxy!
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Some Japanese guy (as usual) worked laboriously for years against all odds to make this amazing anime, and sanghis promptly threatened violence and forced the government to ban its theatrical release. The English dub even had Bryan Cranston voicing Rama.
Nostalgia@nostalgiaa
Ramayana: The Legend of Prince Rama (1993)
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Still don’t understand why we allowed this in TEXAS.
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An absolute masterpiece. Frame and hang it in a museum right now.
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@grok @Sparvey_Hecter @ashoKumar89 @AbhiCodes15 @Sparvey_Hecter hey bro, if Kafka+redis replaces the db altogether, is the above groks implementation can be done for random access and querying data? and is it even a good approach and would it scale?
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In the Kafka + Redis setup (event sourcing/CQRS), Kafka stays purely sequential for writes/replay.
Random access & queries shift to the read side:
Consumers process the Kafka stream in real time (or batch) and project/aggregate events into Redis data structures optimized for your patterns:
- User by ID → Redis Hash (O(1) lookup)
- Leaderboards → Sorted Sets (fast range queries)
- Sessions/carts → simple Keys/Lists
Result: sub-ms random reads, no DB needed.
For ad-hoc/complex SQL-style queries, either pre-materialize more views in Redis or feed Kafka to Elasticsearch (still no traditional RDBMS). Keeps durability + speed.
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@grok @Sparvey_Hecter @ashoKumar89 @AbhiCodes15 @grok kafka is for sequential access, db handles random access, if you're gonna replace db how would you handle random access and queries?
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Yes, exactly— in this pure Kafka + Redis setup, Kafka *is* your durable DB (the single source of truth).
It's an append-only, replicated event log that survives restarts/crashes with zero loss. You replay events to rebuild any state.
No traditional RDBMS (Postgres etc.) required unless you need complex joins, ACID queries, or BI reporting—then consumers can dual-write to one. For most event-driven apps, Kafka replaces it entirely.
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@grok @Sparvey_Hecter @ashoKumar89 @AbhiCodes15 So db is completely eliminated here, as kafka itself serves as db?
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In the Kafka + Redis setup I described:
Kafka is the durable "DB" – the single source of truth. Producers append immutable events to topics (replicated across brokers for zero loss). You can replay the full history anytime.
Consumers read events in order, process/aggregate them (e.g. calculate latest user balance), then update Redis with the materialized view for instant sub-ms reads/queries.
Redis = hot cache only (evictable, no persistence needed).
Traditional DB is optional here – add Postgres if you need complex SQL joins/analytics; consumers can dual-write to it. Pure Kafka+Redis shines for event-driven apps (orders, feeds, real-time metrics).
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@grok @Sparvey_Hecter @ashoKumar89 @AbhiCodes15 @grok what's the role of db in this setup, also explain this setup more in detail.
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Yes, Kafka + Redis is excellent for high-scale, real-time systems where durability and speed matter.
Kafka serves as the persistent, replicated event log (source of truth—no loss on restart).
Consumers process events and update Redis as a materialized view for sub-ms reads/queries.
Add exactly-once semantics and you get strong consistency without AOF's perf hit.
Simpler than full DB + Redis for event-driven apps, but overkill for basic CRUD—use case dependent.
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Concurrent programming is tough, and knowing how the pieces fit together makes a big difference:
- processes give you isolation
- threads give you speed
- IPC mechanisms let them work together
Whether you use shared memory, pipes, message queues, or sockets depends on how much isolation you need, how fast communication has to be, and whether your system runs on one machine or many.
At their core, processes and threads are just abstractions. At some point, they must be mapped to the physical devices that execute the code.
The operating system handles this for you. Its role is to make the best use of the available hardware as possible, but it is not a magical box.
Still, programmers need to organize their work in a way that helps the operating system use hardware in the best way possible.
You can read in details about processes, threads, and how they communicate in the latest issue of @EngPolymathic
ThePolymathicEng@EngPolymathic
The 163rd issue of the Polymathic Engineer is out. This week, we discuss about concurrent programming: - Processes - Threads - Processes vs Threads - Interprocess Communication - Message-Passing Mechanisms - The Thread Pool Pattern Read it here: newsletter.francofernando.com/p/the-building…
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@Sparvey_Hecter @ashoKumar89 @AbhiCodes15 @grok so what's done when you can't risk dataloss and also want cache etc?
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@ashoKumar89 @AbhiCodes15 But it doesn't store instantly so you alays risk losing something
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Again an Ancient India connection :))
In Ayurveda, there is no creatine powder, but there is Shilajit, a Himalayan resin used for 1000s of years as a Medhya Rasayana (Brain Rejuvenator).
Shilajit contains Fulvic Acid, which has been proven to enhance Mitochondrial ATP production, the exact same goal as creatine.
Ayurvedic texts suggest taking Shilajit with milk (rich in the amino acids glycine & arginine). Modern science now confirms that glycine & arginine are the precursors our body needs to synthesize its own creatine. Essentially, ancient Indians were biohacking brain creatine levels through the precursors found in their diet.
Massimo@Rainmaker1973
New clinical studies reveal that creatine supplementation can reduce depression symptoms by as much as 63%, often providing relief far more quickly than conventional antidepressants. Recent research highlights creatine as a promising breakthrough in mental health treatment, especially for women experiencing depression. In controlled trials, some participants saw depression severity scores drop by up to 63%. What sets creatine apart is its remarkably fast action—noticeable mood improvements have been reported in just one to two weeks, compared to the weeks or months typically required for standard antidepressant medications to take effect. This rapid response offers significant hope for people facing acute depressive episodes or severe emotional exhaustion. Creatine works by boosting brain energy metabolism. It increases levels of adenosine triphosphate (ATP), the main energy source for cells, helping meet the intense energy needs of neurons and supporting healthy brain function. This enhanced cellular energy appears to stabilize mood, improve mental sharpness, and strengthen emotional resilience. As growing evidence links metabolic processes to psychological health, creatine is evolving from a popular sports supplement into a valuable option for supporting neurological and psychiatric recovery. [Kious, B. M., Kondo, D. G., Renshaw, P. F. (2023). Creatine for the treatment of depression. Biomolecules, 13(9), 1275. DOI: 10.3390/biom13091275]
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This is what that random dehat lady was missing when she said nobody is throwing colours so Bangalore is a boring city.
The Nalanda Index@Nalanda_index
Some people with a completely backward mindset think it’s fun to throw mud, dirty water, and even cow dung at passing trains. This kind of behavior is not just disgusting it’s dangerous and shows a total lack of civic sense. The railway authorities must identify such people and take strict action. Anyone caught doing this should be arrested and sent to jail. Public property and passenger safety cannot be treated like a joke. @RailMinIndia
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TIL - one of the best Music Directors in the Kannada film industry also builds deep tech companies on the side.
canarese aesthetic@canarese_
Did you know ? Mano murthy is not just a kannada music director. Before becoming a composer, he was an entrepreneur, having co-founded three companies in California. He was a programmer in Microsoft. His latest venture, an IP security provider called Allegro Systems, was acquired by Cisco Systems. His companies got sold for millions of dollars. He is a alum of UVCE. His musical talent was recognised when he used to play music in events of US kannada organisations. #kannada #karnataka #ಕನ್ನಡ #ಕರ್ನಾಟಕ
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If you’re a Java developer in an LLD interview, do this:
Use interfaces for behavior and abstract classes for shared logic.
Prefer composition over inheritance where possible.
Always discuss scalability, concurrency, and thread safety.
Structure your solution into clear layers like controller, service, repository, and model.
Apply SOLID and DRY principles naturally in your reasoning.
Handle failures and exceptions gracefully.
Talk about design patterns if required
(Factory, Strategy, Observer etc.).
Explain relationships clearly with UML-style descriptions.
Talk about trade-offs.
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hardest thing about adult life is convincing your parents to eat right, workout and keep diabetes in check. I keep calling our doctor before and ask him to scare the shit out of my parents
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