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From Amit Adhau <amit.ad...@globant.com>
Subject Imroving the insert peformance with INSERT INTO SELECT - gFlagfile
Date Sun, 29 May 2016 18:37:35 GMT
Hi,

What is the significance of using below gflags, which can help in imroving
the insert peformance with INSERT INTO SELECT clause.

--num_tablets_to_open_simultaneously=8
--scanner_batch_size_rows=1000

and maintenance_manager_num_threads(Kudu Tablet Server Maintenance Threads)
in cloudera manager.

As playing with these configs, gives most of the time errors like "Timed
out: Failed to write batch of ops to tablet " OR "Illegal state: Tablet not
RUNNING: NOT_STARTED"

Can you please suggest the correct way and probable values to play with.

Thank you,
Amit

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