The speed of downloading attachments is extremely slow. We are experiencing the following speeds

Large file served directly through Apache: 15000 KB/sec
Large file served directly from Tomcat HTTP connector: 14500 KB/sec
Large file served from Confluence (using Apache/mod_jk/Tomcat): 84 KB/sec

You can see that the file served from Confluence is ~176 times slower!

ソリューション

We upgraded mod_jk from version 1.2.8 to 1.2.10 and the download speed improved significantly to ~12000 KB/sec.

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