Ivan Andika created HDDS-14362:
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Summary: [Website v2] [Docs] [Core Concepts] Durability Guarantee
Key: HDDS-14362
URL: https://issues.apache.org/jira/browse/HDDS-14362
Project: Apache Ozone
Issue Type: Sub-task
Reporter: Ivan Andika
Assignee: Ivan Andika
We need to explicitly mention the durability guarantee for different write
pipelines (i.e. Async Ratis Pipeline, EC, Streaming Write Pipeline) when user
successfully uploaded a key (i.e. key is committed). We should also mention in
which failure scenario (e.g. power failure, JVM pause, pipeline closure, etc)
and its impact, as well as the configurations related to durability.
For example, AFAIK using the default configuration Async Ratis pipeline, there
is no guarantee whether the key will be persistently stored in the DN since
fsync is disabled by default. If the fsync is enabled, the data should be
persistently stored in the DN leader and promised to be stored (committed) in
one of the DN follower (MAJORITY_COMMITTED).
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