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From "David Crossley (JIRA)" <j...@apache.org>
Subject [jira] Commented: (FOR-1031) Switch to EHCache for Locationmap Cache
Date Wed, 18 Mar 2009 06:25:50 GMT

    [ https://issues.apache.org/jira/browse/FOR-1031?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12682930#action_12682930
] 

David Crossley commented on FOR-1031:
-------------------------------------

I am seeing some issues now.

In the PDF output plugin, building its own little website.
(Also saw this with site-author.)

Did 'forrest clean; forrest run' all okay.

Then did 'forrest' to build the "site".
Got one error:
--------
ERROR - cocoon-ehcache-1Cache: Could not read disk store element for key PK_R-resource-file:///svn/asf/forrest/main/webapp/skins/pelt/images/instruction_arrow.png.
Error was invalid stream header
java.io.StreamCorruptedException: invalid stream header
        at java.io.ObjectInputStream.readStreamHeader(ObjectInputStream.java:764)
        at java.io.ObjectInputStream.<init>(ObjectInputStream.java:277)
        at net.sf.ehcache.store.DiskStore$1.<init>(DiskStore.java:272)
        at net.sf.ehcache.store.DiskStore.loadElementFromDiskElement(DiskStore.java:267)
...
--------

Then did 'forrest run' again and request index.html
Got two errors:
--------
ERROR - cocoon-ehcache-1Cache: Could not read disk store element for key PK_G-file-file:///svn/asf/forrest/plugins/org.apache.forrest.plugin.output.pdf/src/documentation/content/xdocs/tabs.xml_T-xinclude-XInclude.
Error was invalid stream header
...
ERROR - cocoon-ehcache-1Cache: Could not read disk store element for key PK_G-file-cocoon://abs-linkmap?pipelinehash=-4182989005625245977_T-xslt-file:///svn/asf/forrest/main/webapp/resources/stylesheets/relativize-linkmap.xsl;site-root=;path=index.html.
Error was invalid stream header
--------

Subsequent requests for index.html yielded no errors.
Requests for other pages also yielded no errors.

Request index.pdf
Got one error:
--------
ERROR - cocoon-ehcache-1Cache: Could not read disk store element for key PK_G-module-properties.
Error was invalid stream header
--------

Then did 'forrest' again.
No errors.

Then did 'forrest run' again.
Request index.html
Got one error:
--------
ERROR - cocoon-ehcache-1Cache: Could not read disk store element for key PK_G-file-file:///svn/asf/forrest/plugins/org.apache.forrest.plugin.output.pdf/src/documentation/content/xdocs/tabs.xml_T-xinclude-XInclude.
Error was invalid stream header
--------

Subsequent requests for various docs are all okay.

Then did 'forrest' again.
No errors.

Then did 'forrest' again, yes did 'forrest' again.
Got one error:
--------
ERROR - cocoon-ehcache-1Cache: Could not read disk store element for key PK_G-file-file:///svn/asf/forrest/plugins/org.apache.forrest.plugin.output.pdf/src/documentation/content/xdocs/tabs.xml_T-xinclude-XInclude.
Error was invalid stream header
--------

Same on every subsequest 'forrest'.

Can repeat all that behaviour after another 'forrest clean'.

For each session after the first, there is only one broken cache request.
Always tabs.xml_T-xinclude-XInclude.
The first 'forrest' after a 'forrest run' is okay. Subsequent invocations have that single
cache error.


> Switch to EHCache for Locationmap Cache
> ---------------------------------------
>
>                 Key: FOR-1031
>                 URL: https://issues.apache.org/jira/browse/FOR-1031
>             Project: Forrest
>          Issue Type: Improvement
>          Components: Locationmap
>            Reporter: Tim Williams
>         Attachments: lm_cache.diff
>
>
> Should be an easy switch and get much better cache support/configuration options.  Expiry
of cache can be per-element vs. the current implementation where it expires in its entirey.
 It will make the LM stuff much cleaner too.

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