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From Steven Rand <sr...@palantir.com.INVALID>
Subject Re: Wire compatibility between Hadoop 3.x client and 2.x server
Date Tue, 13 Oct 2020 13:14:40 GMT
Another backcompat issue was HDFS-15191, in 3.2.1.

But aside from that, we've been using 3x client libraries against both 2x and 3x clusters
without issue.

On 10/13/20, 2:43 PM, "Wei-Chiu Chuang" <weichiu@cloudera.com.INVALID> wrote:

    CAUTION: This email originates from an external party (outside of Palantir). If you believe
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    Thanks Jialiang for reporting the issue.
    That sounds bad and should've not happened. Could you file a HDFS jira and
    fill in more details?

    On Mon, Oct 12, 2020 at 8:59 PM Wu,Jianliang(vip.com) <
    jianliang.wu@vipshop.com> wrote:

    > In our case, when nn has upgraded to 3.1.3 and dn’s version was still
    > 2.6,  we found hive to call getContentSummary method , the client and
    > server was not compatible  because of hadoop3 added new PROVIDED storage
    > type.
    > 2020年10月13日 06:41,Chao Sun <sunchao@apache.org<mailto:sunchao@apache.org>>
    > 写道:
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