December 2009 - infinispan-issues

[JBoss JIRA] Created: (ISPN-263) Handle JGroups MERGE events to help deal with split brains

by Manik Surtani (JIRA)

Handle JGroups MERGE events to help deal with split brains ---------------------------------------------------------- Key: ISPN-263 URL: https://jira.jboss.org/jira/browse/ISPN-263 Project: Infinispan Issue Type: Feature Request Components: Distributed Cache Reporter: Manik Surtani Assignee: Manik Surtani Fix For: 5.0.0.BETA1, 5.0.0.GA JGroups already detects split brains and issues a callback. The cache layer needs to decide what to do. The idea is to implement a few canned policies (restart, wipe, etc) and allow custom handlers to be attached as well. Analogous to JBCACHE-471 -- 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: (ISPN-302) Enable templated values for manually adding instances via jopr

by Galder Zamarreno (JIRA)

Enable templated values for manually adding instances via jopr -------------------------------------------------------------- Key: ISPN-302 URL: https://jira.jboss.org/jira/browse/ISPN-302 Project: Infinispan Issue Type: Feature Request Components: JMX, reporting and management Reporter: Galder Zamarreno Assignee: Galder Zamarreno Fix For: 4.1.0.BETA1 Enable templated values for manually adding instances via jopr >> For manually importing - you should in the plugin descriptor put the JMX-remoting url as >> >> default -- perhaps with the port as XXX, so the user does not have to copy& paste from an >> >> external location, but only click in the text field and replace XXX by the real port. >> >> same for Objectname of the cache manager. > > > > I did that. I told you it did not work and your reply was that it was fragile and you didn't looked into it further... You / we were talking about c:template - which would allow to have several templates -- see jmx-plugin e.g http://git.fedorahosted.org/git/rhq/rht.git?p=rhq/rhq.git;a=blob;f=module... from line 47 on What you can do, an which works is <c:simple-property name="v1Community" type="string" default="public"/> Here the default value 'public' is shown to the user for this property. Sorry that I was confusing things Heiko -- 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, 3 months

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[JBoss JIRA] Created: (ISPN-200) Distributed queries

by Manik Surtani (JIRA)

Distributed queries ------------------- Key: ISPN-200 URL: https://jira.jboss.org/jira/browse/ISPN-200 Project: Infinispan Issue Type: Feature Request Components: Distributed Cache, Querying Reporter: Manik Surtani Assignee: Manik Surtani Fix For: 5.1.0.BETA1, 5.1.0.GA The holy grail of querying. * Indexes are _never_ shared. * Each node maintains local indexes for state it is responsible for (-Dinfinispan.query.indexLocalOnly=true). * Indexes could be in memory or disk. * Queries themselves are distributed. * The query object is built and broadcast to the entire cluster. * Each node executes the query on its own _local_ index, returning results. * The calling node returns a CacheQuery impl that lazily fetches and collates results from the cluster. * I expect this Map/Reduce model to perform very well since the workload is split up and happens in parallel across multiple CPUs against much smaller (individual) datasets. * Works with all cache modes, including DIST. * Need to make sure duplicates are handled, as well as failover. -- 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, 3 months

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[JBoss JIRA] Created: (ISPN-230) Enable JNDI binding of Cache/CacheManager out of the box

by Galder Zamarreno (JIRA)

Enable JNDI binding of Cache/CacheManager out of the box -------------------------------------------------------- Key: ISPN-230 URL: https://jira.jboss.org/jira/browse/ISPN-230 Project: Infinispan Issue Type: Feature Request Reporter: Galder Zamarreno Priority: Minor Fix For: 4.1.0.BETA1 Note that implementing this has no urgency since it does not really help Brian S for the JBoss AS integration. See: http://lists.jboss.org/pipermail/infinispan-dev/2009-October/001663.html So, I'm thinking that we could have a <jndi name="xyz"/> configuration option both at the global level (for Cache Manager) and at the Cache level. So, - if <jndi/> was present in the global section, we'd bind CacheManager to java:CacheManager - if <jndi name="xyz"/> was present in the global section, we'd bind CacheManager to java:xyz - if <jndi/> was present in the cache section, we'd bind Cache to java:<name-of-the-cache> - if <jndi name="xyz"/> was present in the cache section, we'd bind Cache to java:xyz -- 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, 3 months

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[JBoss JIRA] Created: (ISPN-231) Replace use of ScheduledThreadPoolExecutor if affected by contention

by Galder Zamarreno (JIRA)

Replace use of ScheduledThreadPoolExecutor if affected by contention -------------------------------------------------------------------- Key: ISPN-231 URL: https://jira.jboss.org/jira/browse/ISPN-231 Project: Infinispan Issue Type: Task Reporter: Galder Zamarreno Assignee: Galder Zamarreno Priority: Minor Fix For: 4.1.0.BETA1 Verify whether JGRP-1051 affects Infinispan. -- 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, 3 months

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[JBoss JIRA] Created: (ISPN-279) Avoid instance MarshalledValue accross the code

by Galder Zamarreno (JIRA)

Avoid instance MarshalledValue accross the code ----------------------------------------------- Key: ISPN-279 URL: https://jira.jboss.org/jira/browse/ISPN-279 Project: Infinispan Issue Type: Task Reporter: Galder Zamarreno Assignee: Galder Zamarreno Fix For: 4.1.0.BETA1 Avoid doing things like this in EntryFactoryImpl or EventImpl and instead provide a way for key to be extracted when it somehow needs to be exported to the outside world when lazy serialization is on. if (key instanceof MarshalledValue) { key = ((MarshalledValue) key).get(); } -- 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, 4 months

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[JBoss JIRA] Created: (ISPN-312) Ability to group data entries

by Mindaugas Žakšauskas (JIRA)

Ability to group data entries ----------------------------- Key: ISPN-312 URL: https://jira.jboss.org/jira/browse/ISPN-312 Project: Infinispan Issue Type: Feature Request Components: Core API, Distributed Cache, Eviction, Locking and Concurrency Affects Versions: 4.0.0.CR2 Reporter: Mindaugas Žakšauskas Assignee: Manik Surtani Priority: Minor This is a spin-off from http://lists.jboss.org/pipermail/infinispan-dev/2009-December/001968.html. The requested feature would allow distinct entries to be assigned to custom arbitrary groups. Later in time those groups could be flushed on demand without any knowledge of entry keys. This feature exists in other open source cache library, see: http://www.opensymphony.com/oscache/api/com/opensymphony/oscache/base/Cac... -- 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, 5 months

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[JBoss JIRA] Created: (ISPN-83) Remove dependency on JGroups FLUSH

by Manik Surtani (JIRA)

Remove dependency on JGroups FLUSH ---------------------------------- Key: ISPN-83 URL: https://jira.jboss.org/jira/browse/ISPN-83 Project: Infinispan Issue Type: Task Affects Versions: 4.0.0.GA Reporter: Manik Surtani Assignee: Manik Surtani Fix For: 4.1.0.BETA1, 4.1.0.GA FLUSH is needed to control messages not being sent when a new view is installed, as we have observed that without this, messages get dropped by the joiner. We need to find a better way to deal with this as FLUSH is expensive and not very scalable. -- 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, 6 months

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[JBoss JIRA] Created: (ISPN-224) Separate Cache metrics into differen subservices in Jopr

by Galder Zamarreno (JIRA)

Separate Cache metrics into differen subservices in Jopr -------------------------------------------------------- Key: ISPN-224 URL: https://jira.jboss.org/jira/browse/ISPN-224 Project: Infinispan Issue Type: Feature Request Components: JMX, reporting and management Reporter: Galder Zamarreno Assignee: Galder Zamarreno Fix For: 4.1.0.BETA1 The current Jopr plugin shows a Cache with different metrics for each individual metric available in the cache, i.e. cache stores, cache loades, average repl time...etc. This set up was fine when there was only a handful of metrics, but we after adding all the different managed attributes, we have around ~43 metrics now (some obviously but not always be present, i.e. metrics related to cache stores, deadlock detecting manager...etc), but they still appear but with no metrics at all. So, as the number of metrics increase, you have a massive list of different values under Cache. I think it'd be good to separate attributes from different interceptors into different services under Cache, i.e Statistics, Cache Store, Passivation/Activation...etc. This would make it cleaner to read to the user. -- 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, 6 months

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[JBoss JIRA] Created: (ISPN-219) More sophisticated discovery of Infinispan instances from JOPR agent

by Galder Zamarreno (JIRA)

More sophisticated discovery of Infinispan instances from JOPR agent -------------------------------------------------------------------- Key: ISPN-219 URL: https://jira.jboss.org/jira/browse/ISPN-219 Project: Infinispan Issue Type: Task Components: JMX, reporting and management Reporter: Galder Zamarreno Assignee: Galder Zamarreno Fix For: 4.0.0.CR1 Currently, JOPR agent to Infinispan discovery is hardcoded to localhost. This needs further sophistication as indicated in: Oct 01 10:39:25 <galderz> pilhuhn, one question Oct 01 10:39:40 <galderz> the <plugin-configuration>, who uses it? Oct 01 10:40:05 <pilhuhn> that is used to pass in connection properties Oct 01 10:40:15 <galderz> to who? Oct 01 10:40:27 <galderz> to the jopr plugin itself? Oct 01 10:40:42 <pilhuhn> So in the ispn case, the remote jnp url would go int there , yes the plugin itself Oct 01 10:40:56 <pilhuhn> in the plugin DiscoveryCOmponent you e.g. do Oct 01 10:41:01 <galderz> right, so that currently is not in use at all, correct? Oct 01 10:41:07 <pilhuhn> yes Oct 01 10:41:23 <pilhuhn> Configuration c = resourceDiscoveryContext.getConfiguration(); Oct 01 10:41:49 <galderz> and what's c:template about? Oct 01 10:42:04 <pilhuhn> String jnp Url = c.getSimpleProperty("xxx", "jmx:servive......"); with xxx being the property name from the deployment descirptor Oct 01 10:42:23 <pilhuhn> c:template allows you to provide tempates for the values a user can enter Oct 01 10:44:12 <pilhuhn> have a look at http://viewvc.rhq-project.org/cgi-bin/viewvc.cgi/rhq/trunk/modules/plugin... Oct 01 10:44:27 <galderz> so, let me get one thing straight Oct 01 10:44:43 <galderz> does it make sense to have anything other than localhost in the connectorAddress? Oct 01 10:44:56 <pilhuhn> There are 2 templates for Twitter and identi.ca that pre-fill the basic connection properties for that plugin to connect to the remote services Oct 01 10:45:07 <galderz> at the end of the day, can u assume the plugin will always be local to the infinispan instance? Oct 01 10:45:44 <pilhuhn> This depends on your usage. If you want an agent on all nodes with ispn on, then you can assume localhost Oct 01 10:46:02 <galderz> well, we have to make a choice Oct 01 10:46:11 <galderz> or rethink this cos either Oct 01 10:46:19 <pilhuhn> if you say that you only want one agent for e.g. 10 ispn nodes, then not :-> Oct 01 10:46:21 <galderz> the rhq-plugin.xml is generated at build it Oct 01 10:46:59 <galderz> i think that at least Oct 01 10:47:17 <pilhuhn> A plugin can support manual-add and autodiscovery. Meaning that you can autodiscover ispn on the localhost and stil have a user manually add an instance on a remote host - here he has to provide the correct connection properties Oct 01 10:47:19 <galderz> that the port and host need to have a ${:} format Oct 01 10:47:54 <galderz> so that at least, when u start the agent, u can pass (optionally) the location of the infinispan instance Oct 01 10:48:04 <pilhuhn> That is done via c.getSimpleProperty(propertyName, defaultValue) in the plugin code Oct 01 10:48:28 <pilhuhn> but yes, you could do it your way too Oct 01 10:48:48 <galderz> hmmm, not sure if I like default values in code rather than in xml Oct 01 10:49:05 <galderz> but let me have a think about it Oct 01 10:49:33 <galderz> so, to get this right Oct 01 10:49:42 <galderz> how do u call up on the default template? Oct 01 10:49:58 <galderz> iow, how do I get the default template values? Oct 01 10:50:25 <pilhuhn> hm. dunno if you can get them. Oct 01 10:50:40 <pilhuhn> stop Oct 01 10:50:44 <pilhuhn> let me rephrase Oct 01 10:51:34 <pilhuhn> IIrc you get this just passed in (the default values you specify in plugin-xml) when you call c.getSimpleProperty(); Oct 01 10:54:22 <galderz> another question, how can an agent connect to multiple infinispan instances? Oct 01 10:54:27 <galderz> each in different host and port? Oct 01 10:55:00 <pilhuhn> yes Oct 01 10:55:06 <galderz> how? Oct 01 10:55:19 <pilhuhn> You just need one resource in inventory per ispn instance Oct 01 10:55:40 <galderz> but the agent, how does it connect to each? Oct 01 10:55:49 <galderz> the agent has a single connectorAddress Oct 01 10:56:05 <galderz> so how on earth does it discover several instances in diff nodes? Oct 01 10:57:22 <pilhuhn> you could in the Discovery component e.g. sweep a whole subnet. Just do a loop for each IP, and if an ispn instance is found, create one DiscoveredResourceDetails object per instance found and return all of those instances Oct 01 10:58:25 <pilhuhn> or you could, if you have found one, (require one to start at localhost) ask this ispn instance for connection data of other instances in the grid and then create the DiscoveredResourceDetails objects for all of those Oct 01 10:58:28 <galderz> right, so the connector address is no longer a simple property Oct 01 10:58:38 <galderz> but makes sense to implement it as a list property Oct 01 10:58:45 <pilhuhn> no Oct 01 10:59:13 <pilhuhn> each resource runs in a separate context. per resource we instantiate one IspnComponent class Oct 01 10:59:32 <pilhuhn> with its own set of values for the plugin config Oct 01 10:59:49 <galderz> i don't get this Oct 01 10:59:57 <galderz> the plugin runs in an agent Oct 01 11:00:01 <galderz> that executes the discoveru Oct 01 11:00:05 <pilhuhn> yes Oct 01 11:00:13 <galderz> how do u past a list of ispn isstance urls to that plugin? Oct 01 11:00:20 <galderz> so that discovery can act on each of them? Oct 01 11:00:34 <pilhuhn> ah ok, yes that could be done via list Oct 01 11:00:37 <galderz> i.e. node1:6996, node2:6996...etc Oct 01 11:00:43 <pilhuhn> But then the user needs to provide the list Oct 01 11:00:59 <galderz> via a sys property Oct 01 11:01:14 <pilhuhn> what I was thinking is that you require 1 ispn instance on the host, the agent runs on. Oct 01 11:01:15 <galderz> it's not uncommon to have properties that act either as single value or lists Oct 01 11:02:01 <galderz> i..e tcpping host names Oct 01 11:02:09 <galderz> the possibilities are varios here, i agree Oct 01 11:02:17 <pilhuhn> ispn should know its topology? Oct 01 11:02:30 <galderz> ispn knows about the cluster Oct 01 11:02:37 <galderz> but an agent could be managing diff clusters Oct 01 11:02:40 <galderz> that don't talk to each other Oct 01 11:03:02 <galderz> anyway, this requires further thought Oct 01 11:03:22 <galderz> the easiest way is simply: 1 agent, 1 ispn instance Oct 01 11:03:38 <pilhuhn> yes Oct 01 11:04:00 <galderz> i'll suggest diff solutions in the list and see which ones make most sense to implement before GA -- 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, 6 months

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infinispan-issues December 2009