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https://issues.apache.org/jira/browse/HADOOP-10433?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13958505#comment-13958505
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Uma Maheswara Rao G commented on HADOOP-10433:
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Hi Alejandro, Thanks a lot, for the doc.
Seems like you plan to use Tomcat which will be bundled with Hadoop. Is there
any special reason for not using Jetty which we are already using for simple
web in Hadoop components?
Yes, As pointed by Larry, I would like to see how the HA requirements would be
handled.
> Key Management Server based on KeyProvider API
> ----------------------------------------------
>
> Key: HADOOP-10433
> URL: https://issues.apache.org/jira/browse/HADOOP-10433
> Project: Hadoop Common
> Issue Type: Improvement
> Components: security
> Affects Versions: 3.0.0
> Reporter: Alejandro Abdelnur
> Assignee: Alejandro Abdelnur
> Attachments: HADOOP-10433-v2.patch, HADOOP-10433-v3.patch,
> HADOOP-10433.patch, KMS-ALL-PATCHES-v2.patch, KMS-ALL-PATCHES-v3.patch,
> KMS-ALL-PATCHES.patch, KMS-doc.pdf
>
>
> (from HDFS-6134 proposal)
> Hadoop KMS is the gateway, for Hadoop and Hadoop clients, to the underlying
> KMS. It provides an interface that works with existing Hadoop security
> components (authenticatication, confidentiality).
> Hadoop KMS will be implemented leveraging the work being done in HADOOP-10141
> and HADOOP-10177.
> Hadoop KMS will provide an additional implementation of the Hadoop
> KeyProvider class. This implementation will be a client-server implementation.
> The client-server protocol will be secure:
> * Kerberos HTTP SPNEGO (authentication)
> * HTTPS for transport (confidentiality and integrity)
> * Hadoop ACLs (authorization)
> The Hadoop KMS implementation will not provide additional ACL to access
> encrypted files. For sophisticated access control requirements, HDFS ACLs
> (HDFS-4685) should be used.
> Basic key administration will be supported by the Hadoop KMS via the, already
> available, Hadoop KeyShell command line tool
> There are minor changes that must be done in Hadoop KeyProvider functionality:
> The KeyProvider contract, and the existing implementations, must be
> thread-safe
> KeyProvider API should have an API to generate the key material internally
> JavaKeyStoreProvider should use, if present, a password provided via
> configuration
> KeyProvider Option and Metadata should include a label (for easier
> cross-referencing)
> To avoid overloading the underlying KeyProvider implementation, the Hadoop
> KMS will cache keys using a TTL policy.
> Scalability and High Availability of the Hadoop KMS can achieved by running
> multiple instances behind a VIP/Load-Balancer. For High Availability, the
> underlying KeyProvider implementation used by the Hadoop KMS must be High
> Available.
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