Hard to know without seeing code, but the message seems to indicate app is
failing to close files after it's finished with them. In other words, an
operating system problem, rather than Tomcat or Wicket.
From: eaglei22 <jchojnack...@gmail.com>
To: users@wicket.apache.org
Date: 05/15/2014 02:02 AM
Subject: DiskDataStore errors in production
Hi, my application in production often gets this error:
May 14 09:12:27 ERROR
DiskDataStore-/opt/ssa/tomcat/apache-tomcat-7.0.29/work/Catalina/localhost/SSA/wicket.ssa-webapp-filestore/4729/2939/909EAC3343856968BA7B1864B71CEA85/data
(Too many open files)
java.io.FileNotFoundException:
/opt/ssa/tomcat/apache-tomcat-7.0.29/work/Catalina/localhost/SSA/wicket.ssa-webapp-filestore/4729/2939/909EAC3343856968BA7B1864B71CEA85/data
(Too many open files)
at java.io.RandomAccessFile.open(Native Method)
at java.io.RandomAccessFile.<init>(RandomAccessFile.java:233)
at
org.apache.wicket.pageStore.DiskDataStore$SessionEntry.getFileChannel(DiskDataStore.java:425)
at
org.apache.wicket.pageStore.DiskDataStore$SessionEntry.savePage(DiskDataStore.java:343)
at
org.apache.wicket.pageStore.DiskDataStore.storeData(DiskDataStore.java:181)
at
org.apache.wicket.pageStore.AsynchronousDataStore.storeData(AsynchronousDataStore.java:228)
at
org.apache.wicket.pageStore.DefaultPageStore.storePageData(DefaultPageStore.java:120)
at
org.apache.wicket.pageStore.DefaultPageStore.storePage(DefaultPageStore.java:154)
at
org.apache.wicket.page.PageStoreManager$PersistentRequestAdapter.storeTouchedPages(PageStoreManager.java:412)
at
org.apache.wicket.page.RequestAdapter.commitRequest(RequestAdapter.java:181)
and now I am getting this error for every page opened making the log file
extremely large:
May 14 11:36:31 WARN DiskDataStore-Cannot save page with id '866' because
the data file cannot be opened.
May 14 11:36:31 ERROR
DiskDataStore-/opt/ssa/tomcat/apache-tomcat-7.0.29/work/Catalina/localhost/SSA/wicket.ssa-webapp-filestore/3943/9005/A851AC58C741B566C0E40BE1791649E1/data
(Permission denied)
java.io.FileNotFoundException:
/opt/ssa/tomcat/apache-tomcat-7.0.29/work/Catalina/localhost/SSA/wicket.ssa-webapp-filestore/3943/9005/A851AC58C741B566C0E40BE1791649E1/data
(Permission denied)
at java.io.RandomAccessFile.open(Native Method)
at java.io.RandomAccessFile.<init>(RandomAccessFile.java:233)
at
org.apache.wicket.pageStore.DiskDataStore$SessionEntry.getFileChannel(DiskDataStore.java:425)
at
org.apache.wicket.pageStore.DiskDataStore$SessionEntry.savePage(DiskDataStore.java:343)
at
org.apache.wicket.pageStore.DiskDataStore.storeData(DiskDataStore.java:181)
at
org.apache.wicket.pageStore.AsynchronousDataStore$PageSavingRunnable.run(AsynchronousDataStore.java:355)
at java.lang.Thread.run(Thread.java:722)
May 14 11:36:31 WARN DiskDataStore-Cannot save page with id '0' because
the
data file cannot be opened.
May 14 11:36:32 ERROR
DiskDataStore-/opt/ssa/tomcat/apache-tomcat-7.0.29/work/Catalina/localhost/SSA/wicket.ssa-webapp-filestore/3943/9005/A851AC58C741B566C0E40BE1791649E1/data
(Permission denied)
java.io.FileNotFoundException:
/opt/ssa/tomcat/apache-tomcat-7.0.29/work/Catalina/localhost/SSA/wicket.ssa-webapp-filestore/3943/9005/A851AC58C741B566C0E40BE1791649E1/data
(Permission denied)
at java.io.RandomAccessFile.open(Native Method)
at java.io.RandomAccessFile.<init>(RandomAccessFile.java:233)
at
org.apache.wicket.pageStore.DiskDataStore$SessionEntry.getFileChannel(DiskDataStore.java:425)
at
org.apache.wicket.pageStore.DiskDataStore$SessionEntry.savePage(DiskDataStore.java:343)
at
org.apache.wicket.pageStore.DiskDataStore.storeData(DiskDataStore.java:181)
at
org.apache.wicket.pageStore.AsynchronousDataStore$PageSavingRunnable.run(AsynchronousDataStore.java:355)
at java.lang.Thread.run(Thread.java:722)
May 14 11:36:32 WARN DiskDataStore-Cannot save page with id '0' because
the
data file cannot be opened.
What can be causing these errors? is this more of a Tomcat thing or
Wicket?
Thanks!
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