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 <[email protected]> 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 <[email protected]>: > >> 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 >> > >
