https://issues.apache.org/bugzilla/show_bug.cgi?id=57069
Bug ID: 57069
Summary: apache ssl timeout during chunked request in reverse
balanced proxy setup
Product: Apache httpd-2
Version: 2.2.29
Hardware: PC
OS: Mac OS X 10.4
Status: NEW
Severity: normal
Priority: P2
Component: mod_ssl
Assignee: [email protected]
Reporter: [email protected]
Hi, we're trying to solve very mysterious problem with apache frontend serving
as reverse proxy for our CouchDB back-end servers. In production we have apache
2.2.25 version with the following configuration settings [1]. It correctly
redirects traffic to our CouchDB backend (version 1.1). When we try new version
of CouchDB (version 1.5, 1.6) we see timeouts in back-end log and our
replication process does not proceed. The difference in CouchDB replication
between different version is that latest ones rely on "Transfer-Encoding:
chunked" while former does not. We enabled dumpio module in apache to get a
snapshot of the traffic and what we see is replication process in progress, but
it is aborted due to SSL timeout. Here [2] you can see server part of this
process (I stripped off sensitive parts). I tried various apache proxy settings
(proxy-sendchunks, etc) but nothing helps, except if I'll turn on
downgrade-1.0. Using this option the replication works. Moreover, we did tested
apache 2.4 and it works too without any tweaking. I also tested that problem
exists with latest apache 2.2.29 version. I would appreciate any
help/suggestions on how to debug this issue.
Thanks,
Valentin.
[1] https://gist.github.com/vkuznet/cd8338f8a309ae788142
[2] https://gist.github.com/vkuznet/8bb84a31eb5e40b0e255
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