reload 后， 解析 HTTP2 头出错: inflate failed, Error: Header compression/decompression error[-523]

[shengdoushi]

Please answer these questions before submitting your issue.

1. What did you do? If possible, provide a simple script for reproducing the error.

开启 http2 功能， 如果 reload 了 worker进程， 会导致之前连接成功状态且请求过的 http2 连接，在 reload 后再次请求时， 解析 http2 数据中的 header 出错：

inflate failed, Error: Header compression/decompression error[-523]

2. What did you expect to see?

3. What did you see instead?

inflate failed, Error: Header compression/decompression error[-523]

4. What version of Swoole are you using (show your php --ri swoole)?

swoole

Swoole => enabled
Author => Swoole Team team@swoole.com
Version => 4.8.13
Built => Nov 17 2023 07:40:45
coroutine => enabled with boost asm context
debug => enabled
trace_log => enabled
epoll => enabled
eventfd => enabled
signalfd => enabled
spinlock => enabled
rwlock => enabled
openssl => OpenSSL 1.1.1k 25 Mar 2021
dtls => enabled
http2 => enabled
zlib => 1.2.11
mutex_timedlock => enabled
pthread_barrier => enabled
futex => enabled
mysqlnd => enabled
async_redis => enabled

Directive => Local Value => Master Value
swoole.enable_coroutine => On => On
swoole.enable_library => On => On
swoole.enable_preemptive_scheduler => Off => Off
swoole.display_errors => On => On
swoole.use_shortname => On => On
swoole.unixsock_buffer_size => 8388608 => 8388608

5. What is your machine environment used (show your uname -a & php -v & gcc -v) ?

/docker/app # php -v
PHP 7.4.33 (cli) (built: Nov 12 2022 05:16:49) ( NTS )
Copyright (c) The PHP Group
Zend Engine v3.4.0, Copyright (c) Zend Technologies
with Zend OPcache v7.4.33, Copyright (c), by Zend Technologies
/docker/app # gcc -v
/bin/sh: gcc: not found

[shengdoushi]

这个位置出错的：

swoole-src/ext-src/swoole_http2_server.cc

Line 929 in c5daa21

swoole_warning("inflate failed, Error: %s[%zd]", nghttp2_strerror(rv), rv);

[shengdoushi]

swoole_mode 目前设置的是 process 模式， 能在这个模式下修复吗?

[twose]

老问题了，现在首选模式都是 BASE，性能更好，不用 BASE 的考虑点是什么？

[matyhtf]

@shengdoushi 重启后 http2 的 header table 丢失了上下文，导致无法识别。可以将 http2_header_table_size 设置为 0 或者使用 BASE 模式