[error] 15421#0: *16 upstream sent too big header while reading response header from upstream意思是nginx缓冲区bug造成,网站页面占用缓冲区可能过大。增加缓冲区彻底解决了Nginx 502 Bad Gateway,方法如下:
wget https://bootstrap.pypa.io/pip/2.7/get-pip.py
Proxy request sent, awaiting response... 200 OK
Length: 1908226 (1.8M) [text/x-python]
Saving to: 'get-pip.py'
get-pip.py 100%[===================>] 1.82M 738KB/s in 2.5s
python get-pip.py
DEPRECATION: Python 2.7 reached the end of its life on January 1st, 2020. Please upgrade your Python as Python 2.7 is no longer maintained. pip 21.0 will drop support for Python 2.7 in January 2021. More details about Python 2 support in pip can be found at https://pip.pypa.io/en/latest/development/release-process/#python-2-support pip 21.0 will remove support for this functionality.
Collecting pip<21.0
Downloading pip-20.3.4-py2.py3-none-any.whl (1.5 MB)
|████████████████████████████████| 1.5 MB 352 kB/s
Collecting setuptools<45
Downloading setuptools-44.1.1-py2.py3-none-any.whl (583 kB)
|████████████████████████████████| 583 kB 3.3 MB/s
Collecting wheel
Downloading wheel-0.36.2-py2.py3-none-any.whl (35 kB)
Installing collected packages: pip, setuptools, wheel
Successfully installed pip-20.3.4 setuptools-44.1.1 wheel-0.36.2
urllib3.exceptions.MaxRetryError: HTTPSConnectionPool(host='storage.googleapis.com', port=443): Max retries exceeded with url: /chromium-browser-snapshots/Win_x64/588429/chrome-win32.zip (Caused by NewConnectionError('<urllib3.connection.HTTPSConnection object at 0x000002225ACF2C50>: Failed to establish a new connection: [WinError 10060] 由于连接方在一段时间后没有正确答复或连接的主机没有反应,连接尝试失败。',))
[W:pyppeteer.chromium_downloader] start chromium download.
Download may take a few minutes.
100%|███████████████████████████████████████████████████████████████████████████████████████████████████████| 136913619/136913619 [00:13<00:00, 10093738.83it/s]
[W:pyppeteer.chromium_downloader]
chromium download done.
[W:pyppeteer.chromium_downloader] chromium extracted to: C:\Users\XXXX\AppData\Local\pyppeteer\pyppeteer\local-chromium\588429
可以理解为克隆,备份文件之间是完整且独立的,Proxmox VE 备份始终是完整备份-包含VM / CT配置和所有数据,占用空间较大。备份后可以删除虚拟机,然后从备份文件恢复虚拟机,[备份👉快照模式] 只是虚拟机备份模式中的一种,以最小的不一致风险为代价,提供了最低的操作停机时间。它通过执行 Proxmox VE 实时备份来工作,该备份在VM运行时复制数据块。