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Posted to issues@ozone.apache.org by GitBox <gi...@apache.org> on 2022/10/17 10:57:45 UTC

[GitHub] [ozone] szetszwo opened a new pull request, #3846: HDDS-7254. Document that moving SCM from non-HA to HA is currently unsupported.

szetszwo opened a new pull request, #3846:
URL: https://github.com/apache/ozone/pull/3846

   ## What changes were proposed in this pull request?
   
   Currently SCM HA is supported only for fresh installations. SCM HA must be enabled when starting the Ozone service in the beginning.  After a SCM is started in non-HA mode, it cannot be easily changed to HA mode. We should document this clearly.
   
   ## What is the link to the Apache JIRA
   
   https://issues.apache.org/jira/browse/HDDS-7254
   
   ## How was this patch tested?
   
   NA


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[GitHub] [ozone] szetszwo commented on pull request #3846: HDDS-7254. Document that moving SCM from non-HA to HA is currently unsupported.

Posted by GitBox <gi...@apache.org>.
szetszwo commented on PR #3846:
URL: https://github.com/apache/ozone/pull/3846#issuecomment-1283355467

   @errose28 , when configuring with HA, the CA structure has two levels -- root CA and sub CA.  Without HA, there is only one level of CA.  Therefore, the old certificates will not work when changing from non-HA to HA.  I am not sure if there is a plan for fixing it.
   
   Note that the problem has nothing to do with Ratis.


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[GitHub] [ozone] ChenSammi commented on pull request #3846: HDDS-7254. Document that moving SCM from non-HA to HA is currently unsupported.

Posted by GitBox <gi...@apache.org>.
ChenSammi commented on PR #3846:
URL: https://github.com/apache/ozone/pull/3846#issuecomment-1281740722

   Hi @szetszwo ,  currently SCM ratis is by default enabled in master.  So we still cannot support moving SCM from one instance to three instances with ratis enabled? 


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[GitHub] [ozone] szetszwo commented on pull request #3846: HDDS-7254. Document that moving SCM from non-HA to HA is currently unsupported.

Posted by GitBox <gi...@apache.org>.
szetszwo commented on PR #3846:
URL: https://github.com/apache/ozone/pull/3846#issuecomment-1281788366

   @ChenSammi , you are right.  The problem is the CA and certificates, but not the Ratis server.


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[GitHub] [ozone] kaijchen commented on pull request #3846: HDDS-7254. Document that moving SCM from non-HA to HA is currently unsupported.

Posted by GitBox <gi...@apache.org>.
kaijchen commented on PR #3846:
URL: https://github.com/apache/ozone/pull/3846#issuecomment-1283552753

   > yes, are you interested in updating it?
   
   I have created #3861 to update it.


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[GitHub] [ozone] kerneltime merged pull request #3846: HDDS-7254. Document that moving SCM from non-HA to HA is currently unsupported.

Posted by GitBox <gi...@apache.org>.
kerneltime merged PR #3846:
URL: https://github.com/apache/ozone/pull/3846


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[GitHub] [ozone] errose28 commented on pull request #3846: HDDS-7254. Document that moving SCM from non-HA to HA is currently unsupported.

Posted by GitBox <gi...@apache.org>.
errose28 commented on PR #3846:
URL: https://github.com/apache/ozone/pull/3846#issuecomment-1282779247

   I see some previous discussion here but I just want to clarify before I +1. This is saying we cannot go from Ratis 1 to Ratis 3 SCM due to current limitations with certificates? Is this something that is planning to be resolved in the future cert rotation/management changes that @fapifta is working on?


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[GitHub] [ozone] szetszwo commented on pull request #3846: HDDS-7254. Document that moving SCM from non-HA to HA is currently unsupported.

Posted by GitBox <gi...@apache.org>.
szetszwo commented on PR #3846:
URL: https://github.com/apache/ozone/pull/3846#issuecomment-1283412309

   > ... `SCM-HA.zh.md` needs to be updated also (perhaps in another PR).
   
   @kaijchen , yes,  are you interested in updating it?


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[GitHub] [ozone] szetszwo commented on pull request #3846: HDDS-7254. Document that moving SCM from non-HA to HA is currently unsupported.

Posted by GitBox <gi...@apache.org>.
szetszwo commented on PR #3846:
URL: https://github.com/apache/ozone/pull/3846#issuecomment-1283412696

   @ChenSammi , @nandakumar131, @kaijchen, @kerneltime , @errose28 , thanks everyone for reviewing this!


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