Long request blocks other requests in Apache and PHP

I have a request that takes about 1.5 minutes to complete, but when it does the request, it blocks all the other requests by the server. I'm using Apache with mod_php. What's the best way to开发者_JAVA技巧 fix this? Thanks!

_{[mod_telepathy]}

Do you use sessions? If so - while you haven't closed session in long script, others will wait for it.

If you don't need session there all the time - you can close it with session_write_close()

_{[/mod_telepathy]}

File based Sessions will cause blocking. If you use a database or memcache/redis you can prevent this blocking.