You mean YARN will call some interfaces of FileSystem that not existed in
2.0?
Because I think YARN and MR depend on FileSystem interface of
hadoop-common.
I want to hack as below:
-------> HDFS 2.0 --------> Hadoop-common 2.0
/
YARN and MR
\
------->Hadoop-common 2.4
So Yarn and MR can use new interfaces added in hadoop-common 2.4, while
hdfs client uses old IPC implementation.
--
Thanks,
Peng
在 6/6/14 4:45 PM， "Yu Azuryy" <azuryy....@gmail.com> 写入:
>Even if you done this, it's unstable, because Yarn2.4 added some IPC
>interfaces. then HDFS MUST has related interfaces.
>
>
>On Fri, Jun 6, 2014 at 4:22 PM, 张鹏 <peng.zh...@xiaomi.com> wrote:
>
>> Hi all,
>>
>> I want to upgrade to Yarn 2.4 only. But when it access Hdfs, IPC Server
>> version is mismached.
>>
>> HDFS (IPC v7) cant respond to YARN (IPC v9) with below error log:
>> WARN org.apache.hadoop.ipc.Server: Incorrect header or version mismatch
>> from 127.0.0.1:47957 got version 9 expected version 7
>>
>> I want to know whether it is possible to do this?
>>
>> Maybe I can change pom to depend on hdfs 2.0, and use maven shade to
>>make
>> hadoop common(2.4 and 2.0) work together
>>
>> Any suggestions?
>>
>> --
>> Thanks,
>> Peng
>>
>>
