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From Chris Nauroth <cnaur...@hortonworks.com>
Subject Re: Even after HDFS-2856 JSVC References are require..?
Date Wed, 09 Sep 2015 16:35:20 GMT
AFAIK, the majority of existing deployments still use jsvc to run a
secured DataNode.  It would be a backwards-incompatible change to remove
support for this deployment model.  For that reason, I would be -1 for
removing jsvc support, at least in the 2.x line.

It's something that could be considered for 3.x if we think the clean-up
benefit outweighs the incompatibility cost.  Before we do that, I'd prefer
to hear if end users are having success with the SASL deployment model.
Brahma, are you asking because you run clusters with the SASL approach?
If so, has it been working well?

--Chris Nauroth

On 9/9/15, 9:25 AM, "Haohui Mai" <wheat9@apache.org> wrote:

>JSVC is no longer required. It causes a lot of headaches in
>deployments. It's definitely a good target for clean ups.
>On Wed, Sep 9, 2015 at 5:24 AM, Brahma Reddy Battula
><brahmareddy.battula@huawei.com> wrote:
>> Hi All,
>> AFAIK JSVC added secure the block tokens(..?).
>> Since block tokens are secure now (SASL used to secure the
>>DataTransferProtocol, which transfers file block content between HDFS
>>clients and DataNodes),then can we remove jsvc now (script files)..?
>> Thanks & Regards
>>  Brahma Reddy Battula

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