OBIEE 10g - javahost hang
Hot on the heels of one problem, another has just reared its head.
Users started reporting an error with reports that included charts: [sourcecode] Chart server does not appear to be responding in a timely fashion. It may be under heavy load or unavailable. [/sourcecode]

Set up is a OBIEE 10.1.3.4.1 two-server deployment with BI/PS/Javahost clustered and loadbalanced throughout.
Diagnostics
Javahost was running, and listening, on both servers: [sourcecode] $ps -ef|grep javahost obieeadm 14076 1 0 Nov 25 ? 9:23 /app/oracle/product/OracleAS_1/jdk/bin/IA64N/java -server -classpath /app/oracle/product/obiee/web/javahost/lib/core/sautils.ja $netstat -a|grep 9810|grep LISTEN tcp 0 0 *.9810 *.* LISTEN [/sourcecode]