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Saqib Ameen Subhan profile picture

Saqib Ameen Subhan

14 years running databases in production. MongoDB Community Creator 2024, Creator of mdbkit. Currently writing "Tales from Production" - real incidents, honest tradeoffs, no engagement bait.

Location Bangalore Joined Joined on  Personal website https://saqibameen86.github.io/saqib/ github website
Large partitions don't fail loudly. They fail everywhere at once.
saqibameen86 profile

Large partitions don't fail loudly. They fail everywhere at once.

#cassandra #datamodeling #performance #database
Comments
3 min read
Repair at 1,000 nodes: why we stopped running nodetool repair by hand
saqibameen86 profile

Repair at 1,000 nodes: why we stopped running nodetool repair by hand

#cassandra #operations #distributed #database
Comments
3 min read
The heap dump usually exonerates Cassandra
saqibameen86 profile

The heap dump usually exonerates Cassandra

#cassandra #jvm #performance #debugging
Comments
3 min read
A compaction strategy is a bet about your workload
saqibameen86 profile

A compaction strategy is a bet about your workload

#cassandra #performance #database #operations
Comments
3 min read
mtools does not parse MongoDB 4.4+ JSON logs. So I built mdbkit.
saqibameen86 profile

mtools does not parse MongoDB 4.4+ JSON logs. So I built mdbkit.

#mongodb #opensource #database #cli
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Comments
6 min read
In Cassandra, a delete is a write (and reads pay for it)
saqibameen86 profile

In Cassandra, a delete is a write (and reads pay for it)

#cassandra #database #performance #distributed
Comments
3 min read
How to delete 2TB from a live MongoDB cluster without anyone noticing
saqibameen86 profile

How to delete 2TB from a live MongoDB cluster without anyone noticing

#mongodb #operations #performance #database
Comments
3 min read
I take down a healthy primary on purpose. You should too.
saqibameen86 profile

I take down a healthy primary on purpose. You should too.

#mongodb #highavailability #sre #database
Comments
3 min read
"The write was acknowledged" means less than you think
saqibameen86 profile

"The write was acknowledged" means less than you think

#mongodb #database #reliability #distributed
Comments
3 min read
cannot index parallel arrays, the MongoDB error that improves your schema
saqibameen86 profile

cannot index parallel arrays, the MongoDB error that improves your schema

#mongodb #indexing #datamodeling #database
Comments
2 min read
The explain plan I read before the CEO called back!
saqibameen86 profile

The explain plan I read before the CEO called back!

#mongodb #performance #indexing #database
Comments
3 min read
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