我使用 Ubuntu 14.04 64 位安装 LogicBlox 3.10 当我尝试这样做lb-services start
时会提示我
error: service 'BloxPager' did not start. Aborting.
内容如下~/lb_deployment/logs/current/BloxPagerDaemon.log
<2015/11/27 05:33:51.079> ERROR. Shared memory is critically low and will prevent reliable functioning
<2015/11/27 05:33:51.079> ERROR. of the pager daemon. Details follow.
<2015/11/27 05:33:51.079> ERROR. To force pager daemon start, set "LB_PAGER_FORCE_START" in your environment.
<2015/11/27 05:33:51.079> ERROR. * There is a problem with your machine configuration that could cause
<2015/11/27 05:33:51.079> ERROR. * performance or stability problems with large databases. This machine has
<2015/11/27 05:33:51.079> ERROR. * 8.3 Gb of memory, but only 4.2 Gb of memory is available as free disk
<2015/11/27 05:33:51.079> ERROR. * space in /dev/shm. Ideally there would be 5.5 Gb of free space there.
<2015/11/27 05:33:51.079> ERROR. * There is a simple fix. (1) By default linux configures /dev/shm to be
<2015/11/27 05:33:51.079> ERROR. * half the size of physical memory, which is too little for LogicBlox.
<2015/11/27 05:33:51.079> ERROR. * To increase it, edit (as root) the file /etc/fstab. On the line for
<2015/11/27 05:33:51.079> ERROR. * tmpfs, replace the word "defaults" with "size=7g". This change
<2015/11/27 05:33:51.079> ERROR. * will take effect on reboot. (2) If /etc/fstab is already
<2015/11/27 05:33:51.079> ERROR. * configured properly, there are stale files in /dev/shm that should
<2015/11/27 05:33:51.079> ERROR. * be removed. Or, another pager daemon is running (under a different
<2015/11/27 05:33:51.079> ERROR. * unix userid) that is using some shared memory
在 /etc/fstab 中，内容为
# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point> <type> <options> <dump> <pass>
# / was on /dev/sda1 during installation
UUID=c5a6aaa0-9337-496f-b2d0-eda2d6e6c87e / ext4 errors=remount-ro 0 1
# swap was on /dev/sda5 during installation
UUID=e8cee437-3b01-4c83-abf6-6cd996e9e21f none swap sw 0 0
/dev/fd0 /media/floppy0 auto rw,user,noauto,exec,utf8 0 0
我应该如何改变它？
顺便说一句，在 /dev/shm 中，我尝试删除 LB_ubuntu 以外的所有内容，但它似乎没有用。