Ravi Sir's Cards › AWS
What is a shard?
This interview card answers: What is a shard? A capacity unit with ingest/egress limits; scale count or use on-demand. Hot partition keys cause throttling on one shard. WriteProvisionedThroughputExceeded , then split or on-demand.
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What this card says
What it is
A capacity unit with ingest/egress limits; scale count or use on-demand.
shard
Why it matters
Hot partition keys cause throttling on one shard.
How / example
WriteProvisionedThroughputExceeded → split or on-demand.