找到php内存泄漏的最佳方法？

Question

我有一个 httpd 服务器处理来自大约 1k 活跃用户的请求，我将 PHP 内存限制设置为 128MB。

由于我的用户活动急剧增加，我的日志中出现以下错误

* `/usr/sbin/httpd' 中的错误：malloc()：内存损坏（快速）：0x000055aae4918a9f *

回溯：

/lib64/libc.so.6(+0x7f5e4)[0x7fc15c81c5e4]
/lib64/libc.so.6(+0x82d00)[0x7fc15c81fd00]
/lib64/libc.so.6(__libc_malloc+0x4c)[0x7fc15c82284c]
/lib64/libcrypto.so.10(CRYPTO_realloc_clean+0x58)[0x7fc1574334d8]
/lib64/libcrypto.so.10(BUF_MEM_grow_clean+0x70)[0x7fc1574dcc50]
/lib64/libcrypto.so.10(+0x1193ad)[0x7fc1574de3ad]
/lib64/libcrypto.so.10(BIO_write+0x6b)[0x7fc1574dd3cb]
/lib64/libcrypto.so.10(+0x1419c2)[0x7fc1575069c2]
/lib64/libcrypto.so.10(+0x141a8e)[0x7fc157506a8e]
/lib64/libcrypto.so.10(+0x141e04)[0x7fc157506e04]
/lib64/libcrypto.so.10(+0x141f8b)[0x7fc157506f8b]
/etc/httpd/modules/mod_ssl.so(+0x259b3)[0x7fc14f9559b3]
/etc/httpd/modules/mod_ssl.so(+0x20a42)[0x7fc14f950a42]
/etc/httpd/modules/mod_ssl.so(+0x22701)[0x7fc14f952701]
/etc/httpd/modules/mod_ssl.so(+0x1c624)[0x7fc14f94c624]
/usr/sbin/httpd(ap_run_fixups+0x40)[0x55aae3edbd70]
/usr/sbin/httpd(ap_process_request_internal+0x2da)[0x55aae3ede6fa]
/usr/sbin/httpd(ap_internal_redirect+0x40)[0x55aae3efb9c0]
/etc/httpd/modules/mod_rewrite.so(+0x4f6c)[0x7fc1549b6f6c]
/usr/sbin/httpd(ap_run_handler+0x40)[0x55aae3ee5a80]
/usr/sbin/httpd(ap_invoke_handler+0x69)[0x55aae3ee5fc9]
/usr/sbin/httpd(ap_process_async_request+0x1ea)[0x55aae3efc6aa]
/usr/sbin/httpd(+0x59a49)[0x55aae3ef8a49]
/usr/sbin/httpd(ap_run_process_connection+0x40)[0x55aae3eefa30]
/etc/httpd/modules/mod_mpm_event.so(+0x685a)[0x7fc151df485a]
/etc/httpd/modules/mod_mpm_event.so(+0x7f44)[0x7fc151df5f44]
/lib64/libpthread.so.0(+0x7de5)[0x7fc15cd75de5]
/lib64/libc.so.6(clone+0x6d)[0x7fc15c89bbad]

我不确定它是否是导致内存泄漏的脚本，或者我是否应该从我的 php 脚本中增加内存限制。如何找到导致 apache 进程崩溃的脚本？

有没有我可以找到这个问题的根源而不必单独测试每个 php 脚本？

Answer 1

查看这个 php 扩展 Memory Profiler https://github.com/arnaud-lb/php-memory-profiler.
您可以轻松转储不同格式的信息