I've never seen anything of the sort! The indexed disk cache would be unusable
if it had this problem. And I use it extensively.
I suspect that you have a bad equals method on your objects.
Are you still seeing this?
Aaron
--- On Tue, 8/11/09, Tim Cronin <tim.cro...@autonomy.com> wrote:
> From: Tim Cronin <tim.cro...@autonomy.com>
> Subject: index cache corruption
> To: "JCS Users List" <jcs-users@jakarta.apache.org>
> Date: Tuesday, August 11, 2009, 11:35 AM
> We initially were using indexed disk
> cache but ran into cache corruption
> where the data returned for a key would not be the data
> associated for
> that key. I haven't been able to come up with a good repro
> scenario...
>
> We had to work around it with the following code:
>
> /**
> * is the cache element not the correct
> object for the key
> * @param key the current key
> * @param element the current element
> associated with the key
> * @param hasReadLock whether caller has
> read lock
> * @return true if key mismatch els false
> * @throws InterruptedException if locking
> fails
> */
> private boolean isCorrupt(String key, ICacheElement
> element, boolean
> hasReadLock) throws InterruptedException
> {
> boolean corrupt =
> !key.equals(element.getKey());
> if (corrupt)
> {
> mLogger.error("cache corruption!!! ["
> + (mCorruptionCounter++) +
> "]");
>
> if (mLogger.isDebugEnabled())
> {
> mLogger.error("culprit
> stack...", new Exception("cache
> corruption"));
> }
>
> try
> {
> if (hasReadLock)
> {
>
> mLock.readLock().release();
> }
> mLock.writeLock().acquire();
> try
> {
> mLogger.error("purging "
> + key);
> mCache.remove(key);
> mCache.remove(key +
> ":");
> }
> catch (Exception e)
> {
> mLogger.error("failed to
> purge key " + key, e);
> }
> try
> {
> String k =
> (String)element.getKey();
> mLogger.error("purging "
> + k);
> mCache.remove(k);
> mCache.remove(k + ":");
> }
> catch (Exception e)
> {
> mLogger.error("failed to
> purge key " + element.getKey(), e);
> }
> }
> finally
> {
> if (hasReadLock)
> {
>
> mLock.readLock().acquire();
> }
> mLock.writeLock().release();
> }
> }
> return corrupt;
> }
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: jcs-users-unsubscr...@jakarta.apache.org
> For additional commands, e-mail: jcs-users-h...@jakarta.apache.org
>
>
---------------------------------------------------------------------
To unsubscribe, e-mail: jcs-users-unsubscr...@jakarta.apache.org
For additional commands, e-mail: jcs-users-h...@jakarta.apache.org
