It attempts to synchronize changes to EOs across instances. The frequency of send/receive depends on the frequency of successful saveChanges() in the other instances. They don’t look very bunched to me. Some are in the same second but most are several seconds or minutes apart. I doubt this is the cause of any performance issues.
Chuck From: Gerald Jones <[email protected]<mailto:[email protected]>> Date: Monday, March 21, 2016 at 8:20 PM To: Chuck Hill <[email protected]<mailto:[email protected]>>, 'Ken Anderson' <[email protected]<mailto:[email protected]>> Cc: "[email protected]<mailto:[email protected]>" <[email protected]<mailto:[email protected]>> Subject: RE: Performance issue What is the purpose of the Synchronizer? What is it Synchronizing, and with what process? Why are the statements bunched together? Mahalo, Gerald From: Chuck Hill [mailto:[email protected]] Sent: Tuesday, March 15, 2016 7:51 AM To: Ken Anderson <[email protected]<mailto:[email protected]>>; Gerald Jones <[email protected]<mailto:[email protected]>> Cc: [email protected]<mailto:[email protected]> Subject: Re: Performance issue And most of those ERXRemoteSynchronizer log messages are pretty far apart (minutes). So I doubt this is what is causing the CPU spike. The next time this happens try attaching a VisualVM (https://visualvm.java.net) or doing several iterations of sudo jstack –F <process ID> And comparing what the threads are doing. Chuck From: <[email protected]<mailto:[email protected]>> on behalf of Ken Anderson <[email protected]<mailto:[email protected]>> Date: Tuesday, March 15, 2016 at 5:41 AM To: Gerald Jones <[email protected]<mailto:[email protected]>> Cc: "[email protected]<mailto:[email protected]>" <[email protected]<mailto:[email protected]>> Subject: Re: Performance issue Gerald, There are 2 different things happening here. The session creation exception seems to be something you’re raising in your own code. The lines below the exception relate to receiving changes made from other application instances. You’re going to have to drill down to the problem a bit more before anyone on the list can help you. Ken On Mar 15, 2016, at 1:36 AM, Gerald Jones <[email protected]<mailto:[email protected]>> wrote: Aloha Group, Can anyone explain to me what’s happening in these lines in our log file? We are experiencing high application cpu% that seem to coincide with this type of activity. I’m not sure how to explain it. METSAdmin-2 java.lang.RuntimeException: Session Created at com.mauishuttle.app.Session.<init>(Session.java:20) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27) at java.lang.reflect.Constructor.newInstance(Constructor.java:513) at java.lang.Class.newInstance0(Class.java:355) at java.lang.Class.newInstance(Class.java:308) at com.webobjects.foundation._NSUtilities.instantiateObject(_NSUtilities.java:642) at com.webobjects.appserver.WOApplication.createSessionForRequest(WOApplication.java:1974) at er.extensions.appserver.ERXApplication.createSessionForRequest(ERXApplication.java:2361) at com.webobjects.appserver.WOApplication._initializeSessionInContext(WOApplication.java:2110) at com.webobjects.appserver.WOContext.session(WOContext.java:369) at com.webobjects.appserver.WOComponent.session(WOComponent.java:1324) at com.mauishuttle.components.Main.session(Main.java:59) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at com.webobjects.foundation.NSKeyValueCoding$ValueAccessor$1.methodValue(NSKeyValueCoding.java:636) at com.webobjects.foundation.NSKeyValueCoding$_MethodBinding.valueInObject(NSKeyValueCoding.java:1134) at com.webobjects.foundation.NSKeyValueCoding$DefaultImplementation.valueForKey(NSKeyValueCoding.java:1324) at com.webobjects.appserver.WOComponent.valueForKey(WOComponent.java:1736) at com.webobjects.foundation.NSKeyValueCoding$Utility.valueForKey(NSKeyValueCoding.java:447) at com.webobjects.foundation.NSKeyValueCodingAdditions$DefaultImplementation.valueForKeyPath(NSKeyValueCodingAdditions.java:216) at com.webobjects.appserver.WOComponent.valueForKeyPath(WOComponent.java:1804) at com.webobjects.appserver._private.WOKeyValueAssociation.valueInComponent(WOKeyValueAssociation.java:50) at com.webobjects.appserver.WOAssociation.booleanValueInComponent(WOAssociation.java:276) at er.extensions.components.conditionals.ERXWOConditional.conditionInComponent(ERXWOConditional.java:47) at er.extensions.components.conditionals.ERXWOConditional.meetsConditionInComponent(ERXWOConditional.java:52) at er.extensions.components.conditionals.ERXWOConditional.appendToResponse(ERXWOConditional.java:124) at com.webobjects.appserver._private.WODynamicGroup.appendChildrenToResponse(WODynamicGroup.java:126) at com.webobjects.appserver._private.WODynamicGroup.appendToResponse(WODynamicGroup.java:136) at com.webobjects.appserver.WOComponent.appendToResponse(WOComponent.java:1122) at er.extensions.components.ERXComponent.appendToResponse(ERXComponent.java:195) at com.mauishuttle.components.wrappers.PageWrapper.appendToResponse(PageWrapper.java:36) at com.webobjects.appserver._private.WOComponentReference.appendToResponse(WOComponentReference.java:135) at com.webobjects.appserver._private.WODynamicGroup.appendChildrenToResponse(WODynamicGroup.java:126) at com.webobjects.appserver._private.WODynamicGroup.appendToResponse(WODynamicGroup.java:136) at com.webobjects.appserver.WOComponent.appendToResponse(WOComponent.java:1122) at er.extensions.components.ERXComponent.appendToResponse(ERXComponent.java:195) at com.mauishuttle.components.pages.DashboardPage.appendToResponse(DashboardPage.java:42) at com.webobjects.appserver.WOComponent._appendPageToResponse(WOComponent.java:1574) at com.webobjects.appserver.WOComponent._generateResponseInContext(WOComponent.java:1543) at com.webobjects.appserver.WOComponent.generateResponse(WOComponent.java:1538) at com.webobjects.appserver._private.WOActionRequestHandler._handleRequest(WOActionRequestHandler.java:278) at com.webobjects.appserver._private.WOActionRequestHandler.handleRequest(WOActionRequestHandler.java:161) at er.extensions.appserver.ERXDirectActionRequestHandler.handleRequest(ERXDirectActionRequestHandler.java:128) at com.webobjects.appserver.WOApplication.dispatchRequest(WOApplication.java:1687) at er.extensions.appserver.ERXApplication.dispatchRequestImmediately(ERXApplication.java:2112) at er.extensions.appserver.ERXApplication.dispatchRequest(ERXApplication.java:2077) at com.webobjects.appserver._private.WOWorkerThread.runOnce(WOWorkerThread.java:144) at com.webobjects.appserver._private.WOWorkerThread.run(WOWorkerThread.java:226) at java.lang.Thread.run(Thread.java:662) Mar 14 16:04:02 METSAdmin[2003] INFO er.extensions.remoteSynchronizer.ERXRemoteSynchronizer - Received 1 changes from 10.198.52.77:53157 Mar 14 16:04:19 METSAdmin[2003] INFO er.extensions.remoteSynchronizer.ERXRemoteSynchronizer - Received 3 changes from 10.198.52.77:53157 Mar 14 16:04:37 METSAdmin[2003] INFO er.extensions.remoteSynchronizer.ERXRemoteSynchronizer - Received 1 changes from 10.198.52.77:53157 Mar 14 16:04:38 METSAdmin[2003] INFO er.extensions.remoteSynchronizer.ERXRemoteSynchronizer - Received 3 changes from 10.198.52.77:53157 Mar 14 16:06:54 METSAdmin[2003] INFO er.extensions.remoteSynchronizer.ERXRemoteSynchronizer - Received 1 changes from 10.198.52.77:53157 Mar 14 16:09:03 METSAdmin[2003] INFO er.extensions.remoteSynchronizer.ERXRemoteSynchronizer - Received 1 changes from 10.198.52.77:48348 Mar 14 16:10:14 METSAdmin[2003] INFO er.extensions.remoteSynchronizer.ERXRemoteSynchronizer - Received 1 changes from 10.198.52.77:48348 Mar 14 16:10:14 METSAdmin[2003] INFO er.extensions.remoteSynchronizer.ERXRemoteSynchronizer - Received 3 changes from 10.198.52.77:48348 Mar 14 16:10:22 METSAdmin[2003] INFO er.extensions.remoteSynchronizer.ERXRemoteSynchronizer - Received 1 changes from 10.198.52.77:51459 Mar 14 16:16:11 METSAdmin[2003] INFO er.extensions.remoteSynchronizer.ERXRemoteSynchronizer - Received 8 changes from 10.198.52.77:51459 Mar 14 16:16:26 METSAdmin[2003] INFO er.extensions.remoteSynchronizer.ERXRemoteSynchronizer - Received 2 changes from 10.198.52.77:51459 Mar 14 16:16:30 METSAdmin[2003] INFO er.extensions.remoteSynchronizer.ERXRemoteSynchronizer - Received 3 changes from 10.198.52.77:51459 Mar 14 16:21:26 METSAdmin[2003] INFO er.extensions.remoteSynchronizer.ERXRemoteSynchronizer - Received 9 changes from 10.198.52.77:51459 Mar 14 16:25:10 METSAdmin[2003] INFO er.extensions.remoteSynchronizer.ERXRemoteSynchronizer - Received 9 changes from 10.198.52.77:51459 Mar 14 16:33:06 METSAdmin[2003] INFO er.extensions.remoteSynchronizer.ERXRemoteSynchronizer - Received 1 changes from 10.198.52.77:53157 Mar 14 16:34:19 METSAdmin[2003] INFO er.extensions.remoteSynchronizer.ERXRemoteSynchronizer - Received 1 changes from 10.198.52.77:53157 Mar 14 16:34:42 METSAdmin[2003] INFO er.extensions.remoteSynchronizer.ERXRemoteSynchronizer - Received 1 changes from 10.198.52.77:53157 Mar 14 16:36:10 METSAdmin[2003] INFO er.extensions.remoteSynchronizer.ERXRemoteSynchronizer - Received 1 changes from 10.198.52.77:53157 Mar 14 16:36:12 METSAdmin[2003] INFO er.extensions.remoteSynchronizer.ERXRemoteSynchronizer - Received 2 changes from 10.198.52.77:48348 Mar 14 16:36:12 METSAdmin[2003] INFO er.extensions.remoteSynchronizer.ERXRemoteSynchronizer - Received 3 changes from 10.198.52.77:48348 Mar 14 16:36:27 METSAdmin[2003] INFO er.extensions.remoteSynchronizer.ERXRemoteSynchronizer - Received 1 changes from 10.198.52.77:53157 Mar 14 16:38:09 METSAdmin[2003] INFO er.extensions.remoteSynchronizer.ERXRemoteSynchronizer - Received 1 changes from 10.198.52.77:53157 Mar 14 16:38:11 METSAdmin[2003] INFO er.extensions.remoteSynchronizer.ERXRemoteSynchronizer - Received 3 changes from 10.198.52.77:53157 Mar 14 16:39:56 METSAdmin[2003] INFO er.extensions.remoteSynchronizer.ERXRemoteSynchronizer - Received 1 changes from 10.198.52.77:53157 Mar 14 16:39:57 METSAdmin[2003] INFO er.extensions.remoteSynchronizer.ERXRemoteSynchronizer - Received 3 changes from 10.198.52.77:53157 Mar 14 16:40:41 METSAdmin[2003] INFO er.extensions.remoteSynchronizer.ERXRemoteSynchronizer - Received 1 changes from 10.198.52.77:53157 Mar 14 16:40:42 METSAdmin[2003] INFO er.extensions.remoteSynchronizer.ERXRemoteSynchronizer - Received 3 changes from 10.198.52.77:53157 Mar 14 16:41:00 METSAdmin[2003] INFO er.extensions.remoteSynchronizer.ERXRemoteSynchronizer - Received 2 changes from 10.198.52.77:53157 Mar 14 16:41:01 METSAdmin[2003] INFO er.extensions.remoteSynchronizer.ERXRemoteSynchronizer - Received 3 changes from 10.198.52.77:53157 Mar 14 16:41:45 METSAdmin[2003] INFO er.extensions.remoteSynchronizer.ERXRemoteSynchronizer - Received 2 changes from 10.198.52.77:53157 Mar 14 16:41:46 METSAdmin[2003] INFO er.extensions.remoteSynchronizer.ERXRemoteSynchronizer - Received 3 changes from 10.198.52.77:53157 Mar 14 16:42:49 METSAdmin[2003] INFO er.extensions.remoteSynchronizer.ERXRemoteSynchronizer - Received 2 changes from 10.198.52.77:53157 Mar 14 16:42:50 METSAdmin[2003] INFO er.extensions.remoteSynchronizer.ERXRemoteSynchronizer - Received 3 changes from 10.198.52.77:53157 Mar 14 16:43:05 METSAdmin[2003] INFO er.extensions.remoteSynchronizer.ERXRemoteSynchronizer - Received 2 changes from 10.198.52.77:53157 Mar 14 16:43:06 METSAdmin[2003] INFO er.extensions.remoteSynchronizer.ERXRemoteSynchronizer - Received 3 changes from 10.198.52.77:53157 Mar 14 16:46:06 METSAdmin[2003] INFO er.extensions.remoteSynchronizer.ERXRemoteSynchronizer - Received 2 changes from 10.198.52.77:53157 Mar 14 16:46:07 METSAdmin[2003] INFO er.extensions.remoteSynchronizer.ERXRemoteSynchronizer - Received 3 changes from 10.198.52.77:53157 Mar 14 16:48:14 METSAdmin[2003] INFO er.extensions.remoteSynchronizer.ERXRemoteSynchronizer - Received 1 changes from 10.198.52.77:53157 Mar 14 16:48:14 METSAdmin[2003] INFO er.extensions.remoteSynchronizer.ERXRemoteSynchronizer - Received 3 changes from 10.198.52.77:53157 Mar 14 16:52:10 METSAdmin[2003] INFO er.extensions.remoteSynchronizer.ERXRemoteSynchronizer - Received 1 changes from 10.198.52.77:48348 Mar 14 16:53:34 METSAdmin[2003] INFO er.extensions.remoteSynchronizer.ERXRemoteSynchronizer - Received 1 changes from 10.198.52.77:48348 Mar 14 16:53:34 METSAdmin[2003] INFO er.extensions.remoteSynchronizer.ERXRemoteSynchronizer - Received 3 changes from 10.198.52.77:48348 Mar 14 16:53:49 METSAdmin[2003] INFO er.extensions.remoteSynchronizer.ERXRemoteSynchronizer - Received 5 changes from 10.198.52.77:48348 Mar 14 16:53:50 METSAdmin[2003] INFO er.extensions.remoteSynchronizer.ERXRemoteSynchronizer - Received 3 changes from 10.198.52.77:48348 Mar 14 16:56:46 METSAdmin[2003] INFO er.extensions.remoteSynchronizer.ERXRemoteSynchronizer - Received 8 changes from 10.198.52.77:53157 Mar 14 16:57:19 METSAdmin[2003] INFO er.extensions.remoteSynchronizer.ERXRemoteSynchronizer - Received 1 changes from 10.198.52.77:53157 Mar 14 16:59:40 METSAdmin[2003] INFO er.extensions.remoteSynchronizer.ERXRemoteSynchronizer - Received 8 changes from 10.198.52.77:48348 Mar 14 17:03:56 METSAdmin[2003] INFO er.extensions.remoteSynchronizer.ERXRemoteSynchronizer - Received 8 changes from 10.198.52.77:53157 Mar 14 17:06:48 METSAdmin[2003] INFO er.extensions.remoteSynchronizer.ERXRemoteSynchronizer - Received 9 changes from 10.198.52.77:48348 Mar 14 17:06:58 METSAdmin[2003] INFO er.extensions.remoteSynchronizer.ERXRemoteSynchronizer - Received 7 changes from 10.198.52.77:53157 Mar 14 17:13:43 METSAdmin[2003] INFO er.extensions.remoteSynchronizer.ERXRemoteSynchronizer - Received 1 changes from 10.198.52.77:48348 Mar 14 17:13:44 METSAdmin[2003] INFO er.extensions.remoteSynchronizer.ERXRemoteSynchronizer - Received 3 changes from 10.198.52.77:48348 Mar 14 17:15:21 METSAdmin[2003] INFO er.extensions.remoteSynchronizer.ERXRemoteSynchronizer - Received 8 changes from 10.198.52.77:53157 Mar 14 17:18:15 METSAdmin[2003] INFO er.extensions.remoteSynchronizer.ERXRemoteSynchronizer - Received 8 changes from 10.198.52.77:53157 Mar 14 17:18:38 METSAdmin[2003] INFO er.extensions.remoteSynchronizer.ERXRemoteSynchronizer - Received 5 changes from 10.198.52.77:53157 Mar 14 17:19:48 METSAdmin[2003] INFO er.extensions.remoteSynchronizer.ERXRemoteSynchronizer - Received 8 changes from 10.198.52.77:53157 Mar 14 17:20:22 METSAdmin[2003] INFO er.extensions.remoteSynchronizer.ERXRemoteSynchronizer - Received 3 changes from 10.198.52.77:53157 Mar 14 17:20:25 METSAdmin[2003] INFO er.extensions.remoteSynchronizer.ERXRemoteSynchronizer - Received 3 changes from 10.198.52.77:53157 Mar 14 17:20:42 METSAdmin[2003] INFO er.extensions.remoteSynchronizer.ERXRemoteSynchronizer - Received 1 changes from 10.198.52.77:53157 Mar 14 17:22:50 METSAdmin[2003] INFO er.extensions.remoteSynchronizer.ERXRemoteSynchronizer - Received 2 changes from 10.198.52.77:53157 Mar 14 17:24:18 METSAdmin[2003] INFO er.extensions.remoteSynchronizer.ERXRemoteSynchronizer - Received 8 changes from 10.198.52.77:48348 I appreciate any and all input. Mahalo, Gerald _______________________________________________ Do not post admin requests to the list. They will be ignored. Webobjects-dev mailing list ([email protected]<mailto:[email protected]>) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/webobjects-dev/kenlists%40anderhome.com This email sent to [email protected]<mailto:[email protected]>
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