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https://issues.apache.org/jira/browse/HDDS-12146?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17922041#comment-17922041
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Frens Jan Rumph commented on HDDS-12146:
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Thanks for the feedback. I understand it's limited use. I only had 4 nodes at
my disposal for an assessment of Ozone; hence I resorted to the XOR codec.
> XOR erasure coding unsupported by default
> -----------------------------------------
>
> Key: HDDS-12146
> URL: https://issues.apache.org/jira/browse/HDDS-12146
> Project: Apache Ozone
> Issue Type: Bug
> Components: EC
> Affects Versions: 1.4.1
> Reporter: Frens Jan Rumph
> Priority: Minor
>
> Following [the
> documentation|https://ozone.apache.org/docs/1.4.1/feature/erasurecoding.html],
> I tried setting up erasure coding with {{{{}}{{XOR-2-1-1024k{}}}{}}}.
> However, I got the following error when attempting to create a bucket:
> {{ozone sh bucket create /volume/bucket --type EC --replication
> XOR-2-1-1024k}}
> {{Invalid replication config EC/2-1-1024k. Config must match the pattern
> defined by ozone.replication.allowed-configs
> (^((STANDALONE|RATIS)/(ONE|THREE))|(EC/(3-2|6-3|10-4)-(512|1024|2048|4096)k)$)}}
>
> I had to change {{ozone.replication.allowed-configs}} for it to work:
> {{(^((STANDALONE|RATIS)/(ONE|THREE))|(EC/(2-1|3-2|6-3|10-4)-(512|1024|2048|4096)k)$)}}
>
> (note the added {{2-1}} after {{{}EC/{}}})
> Is this by design or just a simple omission in the regex in
> {{{}org.apache.hadoop.hdds.client.ReplicationConfigValidator#validationPattern{}}}?
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