October 2008 - jbosscache-issues - Jboss List Archives

[JBoss JIRA] Created: (JBCACHE-1410) Cache loaders that use StripedLock do not adequately lock root node when the root node is first added.

by Manik Surtani (JIRA)

Cache loaders that use StripedLock do not adequately lock root node when the root node is first added. ------------------------------------------------------------------------------------------------------ Key: JBCACHE-1410 URL: https://jira.jboss.org/jira/browse/JBCACHE-1410 Project: JBoss Cache Issue Type: Bug Security Level: Public (Everyone can see) Components: Cache loaders Affects Versions: 2.0.0.GA Reporter: Manik Surtani Assignee: Manik Surtani Fix For: 3.0.0.GA, 2.X See detail on the forum post. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: https://jira.jboss.org/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira

13 years

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[JBoss JIRA] Created: (JBCACHE-1432) Cache corrupted by 64bit windows member

by Bill Middleton (JIRA)

Cache corrupted by 64bit windows member --------------------------------------- Key: JBCACHE-1432 URL: https://jira.jboss.org/jira/browse/JBCACHE-1432 Project: JBoss Cache Issue Type: Bug Security Level: Public (Everyone can see) Components: Cache loaders Affects Versions: 2.2.1.CR1 Environment: Windows 64bit OS with either 32 or 64bit jvm in cluster with any linux OS (32 or 64bit) with any linux jvm. Reporter: Bill Middleton Assignee: Manik Surtani Fix For: 3.1.0 Hello. We've run into some trouble in attempting to bring a 64bit windows machine into an existing cluster. The cluster has (had) two 64bit linux members and was running fine when we attempted to insert a 64bit windows machine into the cluster. Anytime the 64bit windows machine wrote a node, the node was thereafter unreadable by either of the original cluster members. Exceptions of the following form were thrown by the other members (will attach stacktrace as comment) I attempted to get help on this issue in the user forum, but it seems that nobody else is running 64bit windows as a cluster member with other OS's in the cluster. I hope perhaps someone can at least confirm this now formally? -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: https://jira.jboss.org/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira

15 years, 5 months

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[JBoss JIRA] Created: (JBCACHE-1402) Memcached server based on JBoss Cache

by Manik Surtani (JIRA)

Memcached server based on JBoss Cache ------------------------------------- Key: JBCACHE-1402 URL: https://jira.jboss.org/jira/browse/JBCACHE-1402 Project: JBoss Cache Issue Type: Feature Request Security Level: Public (Everyone can see) Reporter: Manik Surtani Assignee: Manik Surtani Fix For: 3.0.0.GA This is to create a simple server daemon (similar to a TcpCacheServer) that uses memcached's binary and RESTful protocols, which proxy requests to the cache. Simply called CacheServer? A CacheClient could also be created, which implements Cache and uses the memcached protocol to speak to CacheServer. Consistent hashing could be used to select the server picked, server topology could be piggybacked with responses back to the CacheClient. This would allow us to: 1. Use CacheClient with memcached backends 2. Use memcached front-ends (Java, Python, Perl, C) to speak to JBoss Cache backends 3. Allow for a heterogenous mix of backends. In future the TcpCacheServer could simply be replaced with CacheServer and the TcpCacheLoader updated to use the CacheClient. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: https://jira.jboss.org/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira

15 years, 9 months

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[JBoss JIRA] Created: (JBCACHE-1418) Expose locality of data for partitioned caches

by Manik Surtani (JIRA)

Expose locality of data for partitioned caches ---------------------------------------------- Key: JBCACHE-1418 URL: https://jira.jboss.org/jira/browse/JBCACHE-1418 Project: JBoss Cache Issue Type: Feature Request Security Level: Public (Everyone can see) Components: Replication Reporter: Manik Surtani Assignee: Manik Surtani Fix For: 3.2.0 After we implement a distributed cache based on partitioning, JBCACHE-61, we should also expose a mechanism to locate data within a cluster, to help compute grid products like FishFarm (https://fishfarm.dev.java.net/) and GridGain (http://www.gridgain.org). Perhaps something like: DataLocator dl = Cache.getDataLocator(); // return a null if not using a partitioned cache? Or a specialized DataLocator that statically assumes a fully replicated cache or a local cache depending on cache mode? List<Address> addresses = dl.locate(myFqn); // locate single fqns. Return a list of addresses since it may exist on > 1 node Map<Fqn, List<Address>> as = dl.locate(fqn1, fqn2, fqn3); // locate multiple fqns -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: https://jira.jboss.org/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira

15 years, 9 months

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[JBoss JIRA] Created: (JBCACHE-1416) Allow to put jboss cache and log4j libs in the WEB-INF/lib dir. The Cache#shutdown and Cache#stop methods are not blocking an provok errors when undeploying a webapp.

by Laurent Mimoun (JIRA)

Allow to put jboss cache and log4j libs in the WEB-INF/lib dir. The Cache#shutdown and Cache#stop methods are not blocking an provok errors when undeploying a webapp. ---------------------------------------------------------------------------------------------------------------------------------------------------------------------- Key: JBCACHE-1416 URL: https://jira.jboss.org/jira/browse/JBCACHE-1416 Project: JBoss Cache Issue Type: Feature Request Security Level: Public (Everyone can see) Components: Clustering Affects Versions: 2.2.0.GA Environment: tomcat6 Reporter: Laurent Mimoun Assignee: Manik Surtani Priority: Critical When undeploying the webapp, here is the errors in the logs : Sep 25, 2008 7:50:36 PM org.apache.catalina.startup.HostConfig deployWAR INFO: Deploying web application archive ROOT.war Sep 25, 2008 7:55:33 PM org.apache.catalina.startup.HostConfig checkResources INFO: Undeploying context [] Sep 25, 2008 7:55:33 PM org.apache.catalina.startup.HostConfig deployWAR INFO: Deploying web application archive ROOT.war Sep 25, 2008 7:55:34 PM org.apache.catalina.loader.WebappClassLoader loadClass INFO: Illegal access: this web application instance has been stopped already. Could not load java.io.PrintWriter. The eventual following stack trace is caused by an error thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access, and has no functional impact. java.lang.IllegalStateException at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1246) at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1206) at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319) at org.apache.log4j.spi.LoggingEvent.<init>(LoggingEvent.java:154) at org.apache.log4j.Category.forcedLog(Category.java:388) at org.apache.log4j.Category.log(Category.java:853) at org.apache.commons.logging.impl.Log4JLogger.error(Log4JLogger.java:193) at org.jgroups.protocols.MPING.run(MPING.java:362) at java.lang.Thread.run(Thread.java:619) Sep 25, 2008 7:55:34 PM org.apache.catalina.loader.WebappClassLoader loadClass INFO: Illegal access: this web application instance has been stopped already. Could not load org.apache.log4j.spi.VectorWriter. The eventual following stack trace is caused by an error thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access, and has no functional impact. java.lang.IllegalStateException at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1246) at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1206) at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319) at org.apache.log4j.spi.LoggingEvent.<init>(LoggingEvent.java:154) at org.apache.log4j.Category.forcedLog(Category.java:388) at org.apache.log4j.Category.log(Category.java:853) at org.apache.commons.logging.impl.Log4JLogger.error(Log4JLogger.java:193) at org.jgroups.protocols.MPING.run(MPING.java:362) at java.lang.Thread.run(Thread.java:619) Sep 25, 2008 7:55:34 PM org.apache.catalina.loader.WebappClassLoader loadClass INFO: Illegal access: this web application instance has been stopped already. Could not load org.apache.log4j.spi.VectorWriter. The eventual following stack trace is caused by an error thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access, and has no functional impact. java.lang.IllegalStateException at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1246) at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1206) at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319) at org.apache.log4j.spi.LoggingEvent.<init>(LoggingEvent.java:154) at org.apache.log4j.Category.forcedLog(Category.java:388) at org.apache.log4j.Category.log(Category.java:853) at org.apache.commons.logging.impl.Log4JLogger.error(Log4JLogger.java:193) at org.jgroups.protocols.Discovery$PingSenderTask$1.run(Discovery.java:389) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441) at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:317) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:150) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$101(ScheduledThreadPoolExecutor.java:98) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.runPeriodic(ScheduledThreadPoolExecutor.java:181) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:205) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907) at java.lang.Thread.run(Thread.java:619) Sep 25, 2008 7:55:36 PM org.apache.catalina.loader.WebappClassLoader loadClass INFO: Illegal access: this web application instance has been stopped already. Could not load org.apache.log4j.spi.VectorWriter. The eventual following stack trace is caused by an error thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access, and has no functional impact. After a closer analysis, the reason is quite simple, in the destroy method of the servlet of my webapp, the method Cache#stop is called but this method doesn't wait that the jgroups thread to finish. So the destroy method returns but there are still jgroups thread in the jvm. These threads sometimes use the log4j api (that is in the war too) to log message but the classloader of the webapp is no more avalaible to load the log4j classes because the webapp has been undeployed, that's why an "could not load class ...log4j" happens. To fix the problem, I think the lifecycle methods of jboss cache must be blocking is the case of using jgroups threads. This way the jboss cache and log4j will be able to be packaged in a single war file that is very a good thing in terms of maintenance developpement and so on. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: https://jira.jboss.org/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira

15 years, 9 months

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[JBoss JIRA] Created: (JBCACHE-1409) Unnecessarily scary debug message during config parsing

by Brian Stansberry (JIRA)

Unnecessarily scary debug message during config parsing ------------------------------------------------------- Key: JBCACHE-1409 URL: https://jira.jboss.org/jira/browse/JBCACHE-1409 Project: JBoss Cache Issue Type: Bug Security Level: Public (Everyone can see) Affects Versions: 2.2.0.GA Reporter: Brian Stansberry Assignee: Manik Surtani Priority: Minor XmlConfigurationParser.setValue logs a rather alarming message when it tries and fails to find a property setter that takes a String or Element: 2008-09-11 17:07:09,026 DEBUG [org.jboss.cache.factories.XmlConfigurationParser] (main) Unrecognised attribute SyncReplTimeout. Please check your configuration. Ignoring!! It then goes on to look for a setter that takes a different type (in this case, long) and sets the property, or fails with an exception if there really is no appropriate setter. It's only a DEBUG message, so this is minor, but the message itself is quite alarming. If there needs to be a message at all, perhaps "No property SyncReplTimeout of type String or Element; checking for other types." -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: https://jira.jboss.org/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira

15 years, 9 months

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[JBoss JIRA] Created: (JBCACHE-1413) Investigate the use of SQL insert-or-update semantics for more efficient JDBCCacheLoader internals

by Manik Surtani (JIRA)

Investigate the use of SQL insert-or-update semantics for more efficient JDBCCacheLoader internals -------------------------------------------------------------------------------------------------- Key: JBCACHE-1413 URL: https://jira.jboss.org/jira/browse/JBCACHE-1413 Project: JBoss Cache Issue Type: Feature Request Security Level: Public (Everyone can see) Components: Cache loaders Reporter: Manik Surtani Assignee: Manik Surtani Fix For: 3.0.0.GA, 2.X Related to JBCACHE-1410 -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: https://jira.jboss.org/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira

15 years, 10 months

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[JBoss JIRA] Created: (JBCACHE-1407) Region-based marshalling to support multiple regions in a PREPARE.

by Brian Stansberry (JIRA)

Region-based marshalling to support multiple regions in a PREPARE. ------------------------------------------------------------------ Key: JBCACHE-1407 URL: https://jira.jboss.org/jira/browse/JBCACHE-1407 Project: JBoss Cache Issue Type: Feature Request Security Level: Public (Everyone can see) Components: Replication Reporter: Brian Stansberry Assignee: Manik Surtani A transaction can operate on multiple regions within a cache, so the resulting PREPARE will include data from multiple regions. But the region-based marshalling logic will identify a single region Fqn for the message (first one it finds); result is data from other regions will not unmarshall properly. Region-based marshalling needs to be able to handle such a case; analyze the prepare and create a separate region-fqn/data pair for each time the region changes. Storing the node's data in an org.jboss.cache.marshall.MarshalledValue doesn't solve the problem, as in use cases like Hibernate, custom types can be part of the Fqn (below the region root.) -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: https://jira.jboss.org/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira

15 years, 10 months

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[JBoss JIRA] Created: (JBCACHE-1417) Dynamic resizing of shared lock collection for MVCC write locks based on load/cache size

by Manik Surtani (JIRA)

Dynamic resizing of shared lock collection for MVCC write locks based on load/cache size ---------------------------------------------------------------------------------------- Key: JBCACHE-1417 URL: https://jira.jboss.org/jira/browse/JBCACHE-1417 Project: JBoss Cache Issue Type: Feature Request Security Level: Public (Everyone can see) Reporter: Manik Surtani Assignee: Manik Surtani Fix For: 3.0.0.GA A few ideas here: Users could provide a min and max concurrency level, or a factor of number of nodes in the cache. Need to think of an efficient way to resize the lock collection without affecting ongoing operations. Would also need to consider intelligent collection monitoring to make sure hash functions spread nodes across the locks well, otherwise consider altering the hash function. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: https://jira.jboss.org/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira

15 years, 10 months

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[JBoss JIRA] Created: (JBCACHE-1421) Optimize writes on primitives and Strings to short-circuit if there are no changes

by Manik Surtani (JIRA)

Optimize writes on primitives and Strings to short-circuit if there are no changes ---------------------------------------------------------------------------------- Key: JBCACHE-1421 URL: https://jira.jboss.org/jira/browse/JBCACHE-1421 Project: JBoss Cache Issue Type: Feature Request Security Level: Public (Everyone can see) Reporter: Manik Surtani Assignee: Manik Surtani Fix For: 3.1.0 E.g., cache.put(fqn, "key", "Hello"); // tx 1 ... wait ... cache.put(fqn, "key", "Hello"); // tx 2 tx 2 should be able to short-circuit the process if there is no change in the payload. Only makes sense for primitives and Strings though. Even primitive arrays are not worth it since it would involve iterating through the array. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: https://jira.jboss.org/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira

15 years, 10 months

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jbosscache-issues October 2008