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metacat / src / edu / ucsb / nceas / metacat / dataone / hazelcast @ 7515

Name Size Revision Age Author Comment
HazelcastService.java 22.1 KB 7421 about 8 years Chris Jones In migrating to Hazelcast 2.4.x, replace deprec...
ObjectPathMap.java 4.65 KB 7319 over 8 years Chris Jones On the coordinating Nodes, we often get McdbDoc...
SystemMetadataMap.java 3.18 KB 7197 over 8 years ben leinfelder fix NPE (logMetacat object was not initialized)...

Latest revisions

# Date Author Comment
7421 11/10/2012 03:34 PM Chris Jones

In migrating to Hazelcast 2.4.x, replace deprecated methods. Use Hazelcast.newHazelcastInstance() rather than Hazelcast.init(). For other deprecated static methods, use the HazelcastInstance equivalent calls.

7419 11/09/2012 08:56 AM Chris Jones

To attempt to address performance and stability WRT Hazelcast communication, we're upgrading to the 2.x series of Hazelcast. remove the 1.9.x jar files, and add the 2.4.1-SNAPSHOT jars. Modify HazelcastService to handle the minor change in the ItemListener interface (now passes ItemEvent<Identifier> as an argument)....

7411 10/26/2012 09:08 AM ben leinfelder

add count for the total processed pids (from ISet iterator)

7346 08/03/2012 02:27 PM ben leinfelder

allow SM resynch to be executed any time, not just during start up.
https://redmine.dataone.org/issues/3116

7345 08/03/2012 01:01 PM ben leinfelder

change to debug log level when processing shared/local pids)

7344 08/03/2012 10:41 AM ben leinfelder

only lock the missing pid event if we know we have it locally to contribute.
https://redmine.dataone.org/issues/3117

7343 08/03/2012 09:26 AM Chris Jones

Add locking to the itemAdded() method so ideally only one CN will respond to the request for a 'wanted' pid from the cluster. The lock is on a string, not the pid, and so won't conflict with system metadata locking. The string is based on the pid, with "missing-" as a prefix.

7342 08/03/2012 08:53 AM ben leinfelder

only publish to the missing pid "wanted list" when resynching system metadata. we were seeing redundant entry added/updated events when looking up the shared systemmetadata first.

7341 08/02/2012 10:18 PM ben leinfelder

print the missing pid count, not the total shared pid count so we know how many will be processed.

7340 08/02/2012 05:50 PM ben leinfelder

change the system metadata resynch approach: nodes will publish PIDs that they are missing after inspecting the shared identifier set. other nodes will be listening for the "wanted" pids and will put their local copy of SystemMetadata on the shared SM map. This should dramatically decrease the hazelcast chatter during a resynch and targets only the pids that are missing from any of the various nodes.

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