The following exception is caused by a lack of memory and not having swap
發表於 : 2018-12-03 08:28:04
https://www.jianshu.com/p/b6dc866240a0
https://www.linuxidc.com/Linux/2010-09/28915.htm
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The following exception is caused by a lack of memory and not having swap configured
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PHP Fatal error: Uncaught ErrorException: proc_open(): fork failed - Cannot allocate memory in phar:///usr/local/bin/composer/vendor/symfony/console/Application.php:954
https://www.linuxidc.com/Linux/2010-09/28915.htm
You are running composer with xdebug enabled. This has a major impact on runtime performance. See https://getcomposer.org/xdebug
Loading composer repositories with package information
Updating dependencies (including require-dev)
- Removing caouecs/laravel-lang (3.0.35)
The following exception is caused by a lack of memory and not having swap configured
Check https://getcomposer.org/doc/articles/tr ... led-errors for details
PHP Fatal error: Uncaught ErrorException: proc_open(): fork failed - Cannot allocate memory in phar:///usr/local/bin/composer/vendor/symfony/console/Application.php:954
代碼: 選擇全部
1.首先用命令free查看系统内 Swap 分区大小。
free -m
total used free shared buffers cached
Mem: 2012 1960 51 0 748 950
-/+ buffers/cache: 260 1751
Swap: 255 0 255
可以看到 Swap 只有255M，下面我们来扩大到2G。
2.创建一个 Swap 文件。
mkdir /swapfile
cd /swapfile
sudo dd if=/dev/zero of=swap bs=1024 count=2000000
出现下列提示，上面命令中的 count 即代表swap文件大小。
记录了2000000+0 的读入
记录了2000000+0 的写出
2048000000字节(2.0 GB)已复制，63.3147 秒，32.3 MB/秒
把生成的文件转换成 Swap 文件
sudo mkswap -f swap
Setting up swapspace version 1, size = 1999996 KiB
no label, UUID=fee9ab21-9efb-47c9-80f4-57e48142dd69
3.激活 Swap 文件。
sudo swapon swap
再次查看 free -m 的结果。
total used free shared buffers cached
Mem: 2012 1971 41 0 572 1156
-/+ buffers/cache: 241 1770
Swap: 2209 0 2209
添加成功。
扩展：
如果需要卸载这个 swap 文件，可以进入建立的 swap 文件目录。执行下列命令。
sudo swapoff swap
如果需要一直保持这个 swap ，可以把它写入 /etc/fstab 文件。
/swapfile/swapfile none swap defaults 0 0