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Posted to user@velocity.apache.org by Saad Zia <sa...@globalnorthstar.com> on 2004/11/04 13:57:51 UTC
too many files open error
Hi.
i am experiencing a problem when generating a velocity template. suppose i
am printing it multiple times, over and over. what happens is that after a
very large number, something like after printing the same template over and
over 18,000 plus times, the error thrown on Tomcat is that :
java.io.IOException: Too many open files
java.io.IOException: Too many open files
at java.io.FileInputStream.open(Native Method)
at java.io.FileInputStream.<init>(FileInputStream.java:106)
at java.io.FileInputStream.<init>(FileInputStream.java:66)
at
org.apache.commons.collections.ExtendedProperties.<init>(ExtendedPro
erties.java:470)
at
org.apache.commons.collections.ExtendedProperties.<init>(ExtendedPro
erties.java:452)
at
org.apache.velocity.runtime.RuntimeInstance.init(RuntimeInstance.jav
:473)
at
org.apache.velocity.app.VelocityEngine.init(VelocityEngine.java:93)
could it be that velocity is not releasing the handle of the template passed
to it ? any suggestions or resolutions ?
thx.
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Re: too many files open error
Posted by Simon Christian <si...@stoutstick.com>.
Hi Saad,
From your error log it would appear that you're initialising a new
VelocityEngine each time you're rendering out a template. This is
probably not a great idea in itself as it's much more efficient to
re-use a single instance wherever possible (cached templates & macros,
no need to re-examine configuration files).
Of course that may not be the direct cause of the problem, and if it is
the indirect cause it suggests that either (a) you're not dereferencing
instances correctly or (b) there's a bug in Velocity. Difficult to say
which one from here!
- simon
Saad Zia wrote:
> Hi.
>
> i am experiencing a problem when generating a velocity template. suppose i
> am printing it multiple times, over and over. what happens is that after a
> very large number, something like after printing the same template over and
> over 18,000 plus times, the error thrown on Tomcat is that :
>
> java.io.IOException: Too many open files
> java.io.IOException: Too many open files
> at java.io.FileInputStream.open(Native Method)
> at java.io.FileInputStream.<init>(FileInputStream.java:106)
> at java.io.FileInputStream.<init>(FileInputStream.java:66)
> at
> org.apache.commons.collections.ExtendedProperties.<init>(ExtendedPro
> erties.java:470)
> at
> org.apache.commons.collections.ExtendedProperties.<init>(ExtendedPro
> erties.java:452)
> at
> org.apache.velocity.runtime.RuntimeInstance.init(RuntimeInstance.jav
> :473)
> at
> org.apache.velocity.app.VelocityEngine.init(VelocityEngine.java:93)
>
>
> could it be that velocity is not releasing the handle of the template passed
> to it ? any suggestions or resolutions ?
>
> thx.
>
>
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> To unsubscribe, e-mail: velocity-user-unsubscribe@jakarta.apache.org
> For additional commands, e-mail: velocity-user-help@jakarta.apache.org
>
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