Question

我在Magento 2上安装的Varnish出现问题，我已经按照本教程https://slack-redir.net/link?url=https%3A%2F%2Fwww.techrepublic.com%2Farticle%2Fhow-to-speed-up-apache-with-varnish-http-cache%2F

进行操作

我使用了下一条命令：

curl -I localhost/folder1/folder2
HTTP/1.1 200 OK
Date: Tue, 16 Oct 2018 22:23:50 GMT
Server: Apache/2.4.18 (Ubuntu)
Last-Modified: Fri, 16 Jun 2017 15:47:07 GMT
Vary: Accept-Encoding
Content-Type: text/html
X-Varnish: 131250
Age: 0
Via: 1.1 varnish-v4
ETag: W/"2c39-55215b29954a5-gzip"
Accept-Ranges: bytes
Connection: keep-alive

我通常在示例中看到它应该有一个HIT，但是我看不到它，也许它配置不当，当我单击站点上的链接时，它会花费6s，然后我单击相同的链接，并且点击量相同时间，所以这意味着它可能无法正常工作

我的文件：

文件/etc/varnish/default.vcl

#
# This is an example VCL file for Varnish.
#
# It does not do anything by default, delegating control to the
# builtin VCL. The builtin VCL is called when there is no explicit
# return statement.
#
# See the VCL chapters in the Users Guide at https://www.varnish-cache.org/docs/
# and https://www.varnish-cache.org/trac/wiki/VCLExamples for more examples.

# Marker to tell the VCL compiler that this VCL has been adapted to the
# new 4.0 format.
vcl 4.0;

# Default backend definition. Set this to point to your content server.
backend default {
    .host = "127.0.0.1";
    .port = "8080";
}

sub vcl_recv {
    # Happens before we check if we have this in cache already.
    #
    # Typically you clean up the request here, removing cookies you don't need,
    # rewriting the request, etc.
}

sub vcl_backend_response {
    # Happens after we have read the response headers from the backend.
    #
    # Here you clean the response headers, removing silly Set-Cookie headers
    # and other mistakes your backend does.
}

sub vcl_deliver {
    # Happens when we have all the pieces we need, and are about to send the
    # response to the client.
    #
    # You can do accounting or modifying the final object here.
}

文件000-default.conf：

etc/apache2/sites-available/000-default.conf
<VirtualHost *:8080>
blablablabl
</VirtualHost>

/etc/default/varnish
DAEMON_OPTS="-a :80 \
             -T localhost:6082 \
             -f /etc/varnish/default.vcl \
             -S /etc/varnish/secret \
             -s malloc,256m"
VARNISH_LISTEN_PORT=80

文件/lib/systemd/system/varnish.service

[Unit]
Description=Varnish HTTP accelerator
Documentation=https://www.varnish-cache.org/docs/4.1/ man:varnishd

[Service]
Type=simple
LimitNOFILE=131072
LimitMEMLOCK=82000
ExecStart=/usr/sbin/varnishd -j unix,user=vcache -F -a :80 -T localhost:6082 -f /etc/varnish/default.vcl -S /etc/varnish/secret -s malloc,256m
ExecReload=/usr/share/varnish/reload-vcl
ProtectSystem=full
ProtectHome=true
PrivateTmp=true
PrivateDevices=true

[Install]
WantedBy=multi-user.target

porst.conf文件

/etc/apache2/ports.conf
Listen 8080
#blablabla

Answer 1

这不是缓存命中。

您可以通过检查X-Varnish: 131250的值来查看缓存是否被命中。单个数字是高速缓存未命中，两个数字是例如X-Varnish: 131250 12345是缓存命中。

您需要从Magento管理员那里下载特殊的Magento VCL文件，而不要使用默认文件。

Answer 2

您可以通过在/etc/varnish/default.vcl的sub vcl_deliver部分中添加一些代码来标识高速缓存HIT或MISS。

if (obj.hits > 0) {
    set resp.http.Cache-Tags = "HIT";
}
else {
    set resp.http.Cache-Tags = "MISS";
}

在/etc/varnish/default.vcl的vcl_deliver中添加以上代码。
重新加载/重启清漆。
卷曲-我是您的要求
在响应标头中查找缓存标签。

方法2：

您可以在清漆服务器中发出命令并检查请求是否命中

sudo varnishncsa -F'％U％q％{Varnish：hitmiss} x'

如果您发出上述命令并访问网站，它将在命令行中显示您是未命中或命中。

这是清漆吗？

2 个答案: