Hi Yao,

Thanks. I will try it and let you know about the result.

Regards,
Saeid

On Thu, May 17, 2018 at 4:09 PM, 徐瑶 <ocla...@gmail.com> wrote:

> Hi Saeid,
>
> I think it may be had a long time interval between ScanRequest.
> Setting the parameter --scanner_ttl_ms(default 60s) larger may solve the
> problem.
>
> Yao
>
> 2018-05-17 17:36 GMT+08:00 Saeid Sattari <saeid.satt...@gmail.com>:
>
>> Hi all,
>>
>> Lately, I have a critical problem with Kudu cluster (V1.6). For most of
>> the queries submitted by Impala (even very simple and light one)
>> regularly encountered with the following error. There are 120 datanode in
>> my cluster and changed following parameters on datanodes:
>>
>> unlock_experimental_flags=true
>> rpc_service_queue_length=15000
>> rpc_acceptor_listen_backlog=1024
>>
>> The error:
>>
>>> WARNINGS: Unable to advance iterator: Timed out: Scan RPC to
>>> 172.18.77.131:7050 timed out after 0.000s (SENT): Not found: Scanner
>>> not found
>>
>>
>> Any hints and tips are appreciated. Thank you in advance.
>>
>> Best,
>> Saeid
>>
>
>

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