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ID Category Severity Reproducibility Date Submitted Last Update
0003847 [Resin] major always 01-13-10 17:30 02-18-10 09:19
Reporter mocospace View Status public  
Assigned To ferg
Priority normal Resolution fixed  
Status closed   Product Version 4.0.2
Summary 0003847: Using external compiler to compile jsps is slow and takes a heavy toll from the Resin server
Description We are using javac JDK compiler.
We upgraded a number of our Resin servers to Resin 4.0.2 and noticed that compiling the jsps takes a long while now and a great deal of resources.
We managed to start the servers by pre-compiling the jsps however the issue still occurs whenever a jsp/jspf is changed on the app and requires a re-compile (which prevents us from changing jsps directly on the app).
On our servers that still have version 3.2.1 we encounter no issues of the sort.
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- Notes
01-14-10 00:03

Some of the errors we saw while compilation was taking place, eventually the process succeeded (without needing to modify the JSP), but load average and thread count risen to an unacceptable values and server availability was disrupted.

2010-01-13 11:36:56,071 [http-app-l-10880-15688] WARN jsp.wap2.errorpage - *** WARN: /wap2/footer.jspf:114: reached end of file while parsing

2010-01-13 11:37:25,361 [http-app-m-10880-9948] WARN jsp.wap2.errorpage - _jsp/_wap2/ error while writing _jsp._wap2._profile_22dsearch_0results__jsp: Stale NFS file handle
public class _profile_22dsearch_0results__jsp extends com.caucho.jsp.JavaPage
01-20-10 00:54

We tried separating the work directories for the different resin instances running on the same box and also moving them to local compilation directories. Still however editing a JSP in runtime on production site that requires a recompilation of many JSPs causes high load, high thread spike and timeouts in client requests.
02-18-10 09:19

The output stream parsing was not handled properly.

- Issue History
Date Modified Username Field Change
01-13-10 17:30 mocospace New Issue
01-14-10 00:03 mocospace Note Added: 0004383
01-20-10 00:54 mocospace Note Added: 0004390
02-18-10 09:19 ferg Note Added: 0004435
02-18-10 09:19 ferg Assigned To  => ferg
02-18-10 09:19 ferg Status new => closed
02-18-10 09:19 ferg Resolution open => fixed
02-18-10 09:19 ferg Fixed in Version  => 4.0.4
03-31-10 10:38 mocospace Issue Monitored: mocospace

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