Christos Bisias created HDDS-9972:
-------------------------------------
Summary: Don't allow the user to set bucket quota close to the
block size
Key: HDDS-9972
URL: https://issues.apache.org/jira/browse/HDDS-9972
Project: Apache Ozone
Issue Type: Bug
Reporter: Christos Bisias
The default block size is 256MB. When storing a key, we are reserving and
preallocating the space based on the block size, multiplied by the replication
factor.
For example,
* we want to write a 300MB key
* 1 block = 256MB
* 2 blocks = 512MB
* the 300MB key will require 2 blocks
* If Replication factor is Ratis THREE
We will need to preallocate *2blocks * 256MB * 3replfactor = 1536MB.*
Setting the bucket quota to anything lower than that, will result in allowing
the user to write only 1 key in the bucket and that key's size should be less
than 256MB. Any other write will be blocked due to disk space requirements.
We should set a limit to how low the bucket quota can be. This is a blur idea
but it could be something like
*default block size (get from config) * default replication factor (get from
config) * X*
and upon failure there could be an error message like
*Default replication type is {}, replication factor is {} and block size is {}.
Bucket quota can't be less than {}*
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
