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https://issues.apache.org/jira/browse/WOOKIE-302?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13185549#comment-13185549
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David del Pozo González commented on WOOKIE-302:
------------------------------------------------
It probably is related with some bug in classes which manage .wgt files.
By the way, I passed the FindBugs to source code and it discovered some streams
not closed. It may help:
org.apache.wookie.beans.jpa.JPAPersistenceManager: Line 247, there is a
"InputStream" called "propertiesStream" that does not close.
org.apache.wookie.util.WidgetJavascriptSyntaxAnalyzer: Line 87, there is a
"LineNumberReader" called "lineReader" that does not close.
org.apache.wookie.util.WidgetJavascriptSyntaxAnalyzer: Line 114, there is a
"LineNumberReader" called "lineReader" that does not close.
org.apache.wookie.util.WidgetJavascriptSyntaxAnalyzer: Line 143, there is a
"LineNumberReader" called "lineReader" that does not close.
> Too many open files by Wookie
> -----------------------------
>
> Key: WOOKIE-302
> URL: https://issues.apache.org/jira/browse/WOOKIE-302
> Project: Wookie
> Issue Type: Bug
> Components: Server
> Environment: Linux 2.6.26-2-xen-amd64 #1 SMP Thu Nov 25 06:39:26 UTC
> 2010 x86_64 GNU/Linux
> Apache Tomcat 6.0.29
> MySQL 5.1
> Reporter: David del Pozo González
> Labels: file, resources
> Attachments: lsof.txt
>
>
> It seems that Wookie opened too many files at the same moment or that Wookie
> did not close the open resources
> catalina.out
> 10:04:04,584 ERROR ContextListener:206 - natter.wgt:Hot deploy error: Unable
> to move dropped .wgt file to upload folder -
> /home/user/applications/apache-tomcat-6.0.29/webapps/wookie/deploy/natter.wgt
> (Too many open files)
> java.io.FileNotFoundException:
> /home/user/applications/apache-tomcat-6.0.29/webapps/wookie/deploy/natter.wgt
> (Too many open files)
> at java.io.FileInputStream.open(Native Method)
> at java.io.FileInputStream.<init>(FileInputStream.java:106)
> at org.apache.commons.io.FileUtils.doCopyFile(FileUtils.java:669)
> at org.apache.commons.io.FileUtils.copyFile(FileUtils.java:653)
> at org.apache.commons.io.FileUtils.copyFile(FileUtils.java:607)
> at
> org.apache.wookie.util.WidgetFileUtils.dealWithDroppedFile(WidgetFileUtils.java:99)
> at
> org.apache.wookie.server.ContextListener$1$1.fileModified(ContextListener.java:181)
> at org.apache.wookie.util.WgtWatcher.check(WgtWatcher.java:95)
> at
> org.apache.wookie.server.ContextListener$1.run(ContextListener.java:233)
> This command "lsof -p 1720 | grep wookie | wc -l" returns 854 files opened by
> Wookie: It shows open files by Tomcat PID and then filter by Wookie app, I
> attached the result of the command "lsof -p 1720", the most opened files are
> ".wgt" files from "upload" folder, they are opened several times.
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