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Frameset servlet very slow
By looking around the Internet, I have seen this topic before, but nothing seems to offer a specific answer. I am running birt-viewer along with a web app on two machines: A test machine and a live machine. I'm using Tomcat as the app server. On the test machine, the viewer runs as expected - I just access the frameset link and I get the little animated "in progress" display for a few seconds and then the paginated report pops up. On the live server, I get the start of the page ("BIRT Report Viewer" heading and the green bar with the six icons on the left hand side) but no report for a long time - several minutes. No progress indicator at all.
The machines look to be identical:
Tomcat version: 7.0.55
Java version: 1.8.0_31-b13
birt-runtime version: 4.4.1
Linux: Mint 17 (kernel 3.13.0-24-generic - 64-bit) (Mint is a Ubuntu derivative)
The live server (that doesn't work) is standalone and has 8 gig of RAM. The test machine (that runs fine) is actually running in a VMware partition with 4gig of RAM.
The resource stats from the Tomcat Complete Server Status page show that the resources available on the live machine are higher than the resources on the test machine.
While looking around for others with the same problem, I found a note that said that if you replace "frameset" with "run" it would work right away. I tried that, and sure enough -- it does. But, I need to use frameset for both pagination as well as exporting options (not to mention the fact that I want to understand why apparently identical environments behave differently).
I saw other notes that said their problem was related to a Java version that was too old (Java 6.something, I believe). That is clearly not my problem. I was running Java 7u65 or so before and when it didn't work, I just upgraded to the latest rev from Oracle.
I have no idea where to look. The viewer appears to be acting like something that has to wait for a timeout before it proceeds. Has someone seen and solved this problem? Is there some way to see some important vitals within Tomcat or birt-viewer so that I can get to the bottom of this?