[master] set tablet_history_max_age_sec for master

This patch sets --tablet_history_max_age_sec to 300 seconds by default
for kudu-master process.  Since masters always scan data at the latest
available snapshot, keeping long history of the system tablet doesn't
make much sense.

The default setting of --tablet_history_max_age_sec for tablet servers
has been set to 7 days since logical backup/restore has been
implemented, but storing that much history for system catalog doesn't
make much sense.

Change-Id: I289b68638230b71f36064b7ce61602ba9b4d3456
Reviewed-on: http://gerrit.cloudera.org:8080/19256
Tested-by: Alexey Serbin <alexey@apache.org>
Reviewed-by: Yifan Zhang <chinazhangyifan@163.com>
1 file changed