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Posted to issues@ozone.apache.org by "Bharat Viswanadham (Jira)" <ji...@apache.org> on 2021/06/08 07:44:00 UTC

[jira] [Commented] (HDDS-5317) BootStrapped SCM fails to bootstrap if it connects to another bootstrapped SCM first.

    [ https://issues.apache.org/jira/browse/HDDS-5317?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17359107#comment-17359107 ] 

Bharat Viswanadham commented on HDDS-5317:
------------------------------------------

*Exception:*

{code:java}
2021-06-07 13:58:14,062 ERROR org.apache.hadoop.hdds.scm.ha.HASecurityUtils: Error while fetching/storing SCM signed certificate.
org.apache.hadoop.hdds.security.exception.SCMSecurityException: Get SCM Certificate can be run only primary SCM
	at org.apache.hadoop.hdds.protocolPB.SCMSecurityProtocolClientSideTranslatorPB.handleError(SCMSecurityProtocolClientSideTranslatorPB.java:126)
	at org.apache.hadoop.hdds.protocolPB.SCMSecurityProtocolClientSideTranslatorPB.submitRequest(SCMSecurityProtocolClientSideTranslatorPB.java:108)
	at org.apache.hadoop.hdds.protocolPB.SCMSecurityProtocolClientSideTranslatorPB.getSCMCertChain(SCMSecurityProtocolClientSideTranslatorPB.java:205)
	at org.apache.hadoop.hdds.scm.ha.HASecurityUtils.getRootCASignedSCMCert(HASecurityUtils.java:149)
	at org.apache.hadoop.hdds.scm.ha.HASecurityUtils.initializeSecurity(HASecurityUtils.java:102)
	at org.apache.hadoop.hdds.scm.server.StorageContainerManager.scmBootstrap(StorageContainerManager.java:900)
	at org.apache.hadoop.hdds.scm.server.StorageContainerManagerStarter$SCMStarterHelper.bootStrap(StorageContainerManagerStarter.java:179)
	at org.apache.hadoop.hdds.scm.server.StorageContainerManagerStarter.bootStrapScm(StorageContainerManagerStarter.java:129)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at picocli.CommandLine.executeUserObject(CommandLine.java:1952)
	at picocli.CommandLine.access$1100(CommandLine.java:145)
	at picocli.CommandLine$RunLast.executeUserObjectOfLastSubcommandWithSameParent(CommandLine.java:2332)
	at picocli.CommandLine$RunLast.handle(CommandLine.java:2326)
	at picocli.CommandLine$RunLast.handle(CommandLine.java:2291)
	at picocli.CommandLine$AbstractParseResultHandler.handleParseResult(CommandLine.java:2152)
	at picocli.CommandLine.parseWithHandlers(CommandLine.java:2530)
	at picocli.CommandLine.parseWithHandler(CommandLine.java:2465)
	at org.apache.hadoop.hdds.cli.GenericCli.execute(GenericCli.java:96)
	at org.apache.hadoop.hdds.cli.GenericCli.run(GenericCli.java:87)
	at org.apache.hadoop.hdds.scm.server.StorageContainerManagerStarter.main(StorageContainerManagerStarter.java:57)
2021-06-07 13:58:14,067 INFO org.apache.hadoop.hdds.scm.server.StorageContainerManagerStarter: SHUTDOWN_MSG: 
{code}



> BootStrapped SCM fails to bootstrap if it connects to another bootstrapped SCM first.
> -------------------------------------------------------------------------------------
>
>                 Key: HDDS-5317
>                 URL: https://issues.apache.org/jira/browse/HDDS-5317
>             Project: Apache Ozone
>          Issue Type: Bug
>          Components: SCM HA, Security
>            Reporter: Bharat Viswanadham
>            Assignee: Bharat Viswanadham
>            Priority: Blocker
>
> GetSCMCertificate can happen non-leader SCM, as rootCA is only run on primary SCM.
> So, when an SCM is bootstrapped, let's say it connects first to a bootstrapped SCM, we fail with a SCMSecurityResponse with status set to NOT_A_PRIMARY_SCM. As we return with a response, failOver will not happen.
> *SCMSecurityProtocolClientSideTranslatorPB*
> {code:java}
>   private SCMSecurityResponse handleError(SCMSecurityResponse resp)
>       throws SCMSecurityException {
>     if (resp.getStatus() != SCMSecurityProtocolProtos.Status.OK) {
>       throw new SCMSecurityException(resp.getMessage(),
>           SCMSecurityException.ErrorCode.values()[resp.getStatus().ordinal()]);
>     }
>     return resp;
>   }
> {code}
> To solve this issue, one possible solution is on server check if it is SCMSecurityException with errorCode NOT_A_PRIMARY_SCM return a RetriableWithFailOverException. In this way, FailOverProxyProvider performs failOver and Retry to the next SCM.



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