upstream sent too big header while reading response header from upstream

[ocxo]

Getting this error when visiting the HipChat Notifier page after installing:

2014/07/25 15:20:48 [error] 772#0: *9618170 upstream sent too big header while reading response header from upstream, client: REDACTED, server: REDACTED, request: "GET /admin/admin.html?item=hipChat&init=1 HTTP/1.1", upstream: "http://127.0.0.1:8080/admin/admin.html?item=hipChat&init=1", host: "REDACTED", referrer: "https://REDACTED/admin/admin.html?item=serverConfigGeneral"

We are on TC 8.0.6.

[parautenbach]

Ah, yes, that is quite possible. The POST increased quite a bit in size, because of the templates that are now configurable. Are you running behind Nginx as a proxy? You could try to increase your buffers slightly.

You could also check your buffer sizes in the Tomcat settings in <INSTALLATION_PATH>/conf/server.xml. Here is mine:

    <Connector port="8111" protocol="org.apache.coyote.http11.Http11NioProtocol"
                connectionTimeout="60000"
                useBodyEncodingForURI="true"
                socket.txBufSize="64000"
                socket.rxBufSize="64000"
                tcpNoDelay="1"
                maxThreads="200"
                scheme="http"
                secure="false"
                />

Let me know which works for you, so that I can update the documentation.

[ocxo]

We're behind nginx.

Setting proxy_buffer_size 8k; did the trick!

[parautenbach]

Great!