Problem solving high resource-update-apt-xapi

Recently there has been a cloud host error, view system logs found to be too high update-apt-xapi resource-intensive task, even accounting for over memory can not open the memory
Cloud Hosting:Ubuntu 14.04.5 LTS

update-apt-xapiWhy is it?

Online search out this task is the system used to update the internal resources package, the default will start automatically in the background. The main index is an extension of the data package is not necessary to rely on the system,

Solution one:

Proposal directly uninstall

sudo apt-get autoremove --purge apt-xapian-index
sudo apt-get autoremove --purge

Solution two:

Change parameters. /etc/cron.weekly/apt-xapian-index

#!/bin/sh

CMD=/usr/sbin/update-apt-xapian-index
IONICE=/usr/bin/ionice

# Rebuild the index
if [ -x $CMD ]
then
    if [ -x $IONICE ]
    then
        nice -n 19 $IONICE -c 3 $CMD --update --quiet
    else
        nice -n 19 $CMD --update --quiet
    fi
fi

Reference:
Ubuntu official website