1. Problem Description:
When using composer to deploy the yii project on the Linux server, "proc_open(): fork failed - Cannot allocate memory"
is the prompt" Prompt "Insufficient Memory", we can solve this problem by creating a swap partition.
2. Solution:
- First run free -m to see how much space there is
- in the command line environment in sequence Run the following three commands
dd if=/dev/zero of=/var/swap.1 bs=1M count=1024 mkswap /var/swap.1 swapon /var/swap.1
- Example: [The following is the result of my running on the server]
dd if=/dev/zero of=/var/swap.1 bs=1M count=1024 //第一条指令 1024+0 records in //这个是返回的内容 1024+0 records out //这个是返回的内容 1073741824 bytes (1.1 GB) copied, 10.0607 s, 107 MB/s //这个是返回的内容
mkswap /var/swap.1 //第二条指令 Setting up swapspace version 1, size = 1048572 KiB //这个是返回的内容 no label, UUID=f6280c41-21b4-4039-bc3e-c26284b47b0c //这个是返回的内容
swapon /var/swap.1 //第三条指令 swapon: /var/swap.1: insecure permissions 0644, 0600 suggested. //这个是返回的内容
- Explanation:
dd 从/dev/zero设备复制出一个1G大小的文件/var/swap.1 mkswap 格式化/var/swap.1 swapon 将swap分区挂在到文件系统 然后输入free -m 查看内存使用量信息
- Finally, execute composer update again and it will be successful.
