sqoop-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Suraj Nayak <snay...@gmail.com>
Subject Netezza Direct Sqoop Import - Few mappers slow down
Date Tue, 07 Feb 2017 23:57:19 GMT
Hi All,

Sqoop Direct mode for netezza is experiencing slow down for only 2 of 10
mappers. 8 of them import very fast, while the 2 which runs slow does not
keep pace with others. The mapper counter slowly increments.

Once the slow map attempt is failed manually with hadoop job -fail-task
<attemp_id> command, the mapper starts new attempt. This attempts starts to
import fast (unlike the slowness in 1st attempt).

Netezza box is free while this import job ran.

Has anyone faced this kind of issue ? How to debug and solve this ?

Thanks!

-- 
Suraj Nayak M

Mime
View raw message