June 2010 - infinispan-issues - Jboss List Archives

[JBoss JIRA] Created: (ISPN-250) Replace transactions with async methods combined with batching

by Sanne Grinovero (JIRA)

Replace transactions with async methods combined with batching -------------------------------------------------------------- Key: ISPN-250 URL: https://jira.jboss.org/jira/browse/ISPN-250 Project: Infinispan Issue Type: Patch Components: Lucene Directory Affects Versions: 4.0.0.CR1 Reporter: Sanne Grinovero Assignee: Sanne Grinovero -- 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, 9 months

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[JBoss JIRA] Created: (ISPN-456) Minimize dependencies for Lucene modules

by Sanne Grinovero (JIRA)

Minimize dependencies for Lucene modules ---------------------------------------- Key: ISPN-456 URL: https://jira.jboss.org/browse/ISPN-456 Project: Infinispan Issue Type: Task Reporter: Sanne Grinovero Assignee: Sanne Grinovero Fix For: 4.1.0.CR1 there are way too much unused jars defined as Maven dependencies, mostly in test scope but not only. This is confusing for the best, some people is scared off. The main goal is to reduce the dependencies for the Lucene Modules, but this will also unblock the possibility to reduce dependencies for other sub-modules. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: https://jira.jboss.org/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira

13 years, 9 months

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[JBoss JIRA] Created: (ISPN-514) replace(Async) with eager locking

by Mircea Markus (JIRA)

replace(Async) with eager locking --------------------------------- Key: ISPN-514 URL: https://jira.jboss.org/browse/ISPN-514 Project: Infinispan Issue Type: Bug Reporter: Mircea Markus Assignee: Manik Surtani Fix For: 4.1.0.CR1, 4.1.0.Final As described in the forum -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: https://jira.jboss.org/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira

13 years, 9 months

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[JBoss JIRA] Created: (ISPN-504) replication queue is being sync with synchronized

by Mircea Markus (JIRA)

replication queue is being sync with synchronized -------------------------------------------------- Key: ISPN-504 URL: https://jira.jboss.org/browse/ISPN-504 Project: Infinispan Issue Type: Feature Request Affects Versions: 4.1.0.BETA2 Reporter: Mircea Markus Assignee: Manik Surtani Fix For: 4.1.0.CR1 synchronized block are not great for concurrency, consider using an BlockingQueue. That would also increase readability. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: https://jira.jboss.org/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira

13 years, 9 months

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[JBoss JIRA] Created: (ISPN-516) HotRod: improve protocol to be able to transfer the entire state of the cache

by Mircea Markus (JIRA)

HotRod: improve protocol to be able to transfer the entire state of the cache ------------------------------------------------------------------------------ Key: ISPN-516 URL: https://jira.jboss.org/browse/ISPN-516 Project: Infinispan Issue Type: Feature Request Reporter: Mircea Markus Assignee: Manik Surtani This is needed for pre-loading the cache through the ClusteredCacheStore. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: https://jira.jboss.org/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira

13 years, 9 months

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[JBoss JIRA] Created: (ISPN-395) Create benchmark test for DataContainer with eviction turned on

by Vladimir Blagojevic (JIRA)

Create benchmark test for DataContainer with eviction turned on --------------------------------------------------------------- Key: ISPN-395 URL: https://jira.jboss.org/jira/browse/ISPN-395 Project: Infinispan Issue Type: Task Reporter: Vladimir Blagojevic Assignee: Manik Surtani Fix For: 4.1.0.Final Add a benchmark test for DataContainer with eviction turned on, under a heavy load. Integrate the test with other benchmark tests or stress tests. -- 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, 9 months

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[JBoss JIRA] Created: (ISPN-505) Hot Rod client to send a ping as part of connection to get topology

by Galder Zamarreno (JIRA)

Hot Rod client to send a ping as part of connection to get topology ------------------------------------------------------------------- Key: ISPN-505 URL: https://jira.jboss.org/browse/ISPN-505 Project: Infinispan Issue Type: Feature Request Components: Cache Server Reporter: Galder Zamarreno Assignee: Mircea Markus Fix For: 4.1.0.CR1 On connection, Hot Rod client could send a ping to server to avoid needing clients to send a 1st request to get topology. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: https://jira.jboss.org/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira

13 years, 9 months

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[JBoss JIRA] Created: (ISPN-332) Add ability to create GlobalConfiguration and DefaultConfiguration objects from XML files

by Noel O'Connor (JIRA)

Add ability to create GlobalConfiguration and DefaultConfiguration objects from XML files ------------------------------------------------------------------------------------------ Key: ISPN-332 URL: https://jira.jboss.org/jira/browse/ISPN-332 Project: Infinispan Issue Type: Feature Request Components: Configuration Reporter: Noel O'Connor Assignee: Noel O'Connor Priority: Minor -- 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, 9 months

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[JBoss JIRA] Created: (ISPN-366) Document CAS-like operations in Hot Rod clearly

by Galder Zamarreno (JIRA)

Document CAS-like operations in Hot Rod clearly ----------------------------------------------- Key: ISPN-366 URL: https://jira.jboss.org/jira/browse/ISPN-366 Project: Infinispan Issue Type: Task Components: Cache Server Reporter: Galder Zamarreno Assignee: Galder Zamarreno Fix For: 4.1.0.Final <mmarkus_> galderz: ping <mmarkus_> what is the meaning of "replaceIfUnmodified"? * amontenegro_ (~amonteneg(a)200.111.187.74) has joined #infinispan * amontenegro_ is now known as aamonten * clebert (~clebert@redhat/jboss/clebert) has joined #infinispan * baileyje (~baileyje@redhat/jboss/baileyje) has joined #infinispan * clebert (~clebert@redhat/jboss/clebert) has left #infinispan <galderz> manik__, hi mmarkus_ <galderz> replaceIfUnmodified ? <galderz> one sec <galderz> mmarkus_, manik_, r u planning to produce diff jars for server and client? <galderz> if so, it'd make sense for the client to be a separate module <galderz> wouldn't it? <manik_> galderz: yes, I think diff jars would make sense <mmarkus_> galderz: i think yes, because I'd like the client to be light <galderz> same here <manik_> no one would want server code (+ server deps) on their client <galderz> exactly <galderz> so, the client should be in server/hotrod-client or similar module <mmarkus_> not sure we need another module for that, only different packaging <galderz> mmarkus_, u're lucky i don't have java classes <galderz> and u can use src/java <galderz> while I use main/scala <galderz> i mean, u use main/java <galderz> but once u give a maven module scala nature <galderz> i think it ignores main/java <galderz> at least that's what I found out doing some testing <mmarkus_> even so, can't we produce two jars for the same module? <galderz> mmarkus_, u prob can but u have to start filtering classes./..etc <manik_> mmarkus_: thats a real PITA <galderz> iow, it's a probably a PITA <manik_> try wrestling with maven assemblies to do that ! ;) <sannegrinovero> hi all; nice to see activity here :) hi galderz recovered from all the walking? <galderz> sannegrinovero, yup, fully recovered now :) <sannegrinovero> nice :) <manik_> mmarkus_: much easier to just use a separate maven module <mmarkus_> manik_: I don't want to do that for sure. Not a big fan o mvn (not to say more) <galderz> mmarkus_, replaceIfUnmodified is all about the cas <sannegrinovero> can't build the snapshot currently as I'm missing a jgroups:jar:2.10.0.Alpha2 <galderz> it's a way to do a replace remotely <galderz> u want to replace, only if no one changed the value <galderz> so what do u do? <galderz> each modification has a unique value associated to it <galderz> so, when u want to mayeb replace, u get the cas first with: getWithCas <galderz> and then use the cas to make the modification <sannegrinovero> galderz is this "replaceIfUnmodified" already in trunk? sounds very useful <galderz> if the cas values do not match, someone has changed the value and replace is not execited <galderz> sannegrinovero, not yet <sannegrinovero> ok <galderz> mmarkus_, it's the same technique used by memcached: see http://github.com/trondn/memcached/blob/master/doc/protocol.txt <galderz> see cas command in that document <galderz> cas is our replaceIfUnmodified <galderz> mmarkus_, is it clear? <mmarkus_> what is cas? <galderz> Compare And Swap <galderz> used all over java.util.concurrent <mmarkus_> I know that one, just I don't see how it maps in hotrod <mmarkus_> e.g. getWithCas? <galderz> mmarkus_, each modification has a unique value associated: <galderz> for example: <galderz> if u key=k value=v1, let's say the unique value is 12345 <galderz> get with cas returns that 12345 <galderz> 12345 and v1 of course <galderz> now, u call replaceIfUnmodified on key=k with value=v2 and cas 12345 <galderz> key=k will only be replaced by v2 if, and only if, the cas in that node is still 12345 <galderz> if someone else had made a modification in the mean time, the unique value would have changed <galderz> hence, replaceIfUnmodified call would not have succeded <galderz> mmarkus_, does it make sense now? <galderz> it's a way to do a remote CAS <galderz> as memcached says: " "cas" is a check and set operation which means "store this data but <galderz> only if no one else has updated since I last fetched it."" <mmarkus_> so cas is generated on the server, each modification to the cache (cluster) resulting in a new cas value? <galderz> that cas operation does exactly the same as replaceIfUnmodified <galderz> indeed mmarkus_ <galderz> see the memcached module for an example <galderz> we discussed this in the list as well <mmarkus_> is the cache set per key or per whole cache? <galderz> cas u mean? <galderz> it's associated with each value, so is per key <mmarkus_> cas, sorry <galderz> mmarkus_, see http://anonsvn.jboss.org/repos/infinispan/trunk/server/memcached/src/main... <galderz> and <galderz> AddCommand <galderz> or SetCommand <galderz> in memcached, we set it to current time millis <galderz> and we increment it for each modification <mmarkus_> yep, makes sense. And it's not returned by default, the only way to retrieve it is through getWithCas, right? <galderz> mmarkus_, indeed <mmarkus_> galderz: I'm just thinking, is there a way to do a put AND obtain the cas value atomically? * mmarkus_ i.e. the way I understand it. if one does a 1.put (k1,v1) <galderz> not at the moment <mmarkus_> then he will need to to a getWithCas(k1) to get this value back <galderz> i wonder how often this would be needed <galderz> indeed <galderz> by making getWithCas a separate command and not using cas anywhere, i'm assuming this is rare occurrence <galderz> but maybe it's not that rar <galderz> rare <mmarkus_> now, the cas he gets on getWithCas(k1), might be the cas of a different put that happened after put(k1,v1), e.g. put(k1,v2) <galderz> mmarkus_, well, that means someone has changed it then <galderz> i think i know what u mean though <galderz> if u have a put and replaceIfUnmodified one after the other, put returning the cas would cut one network call <mmarkus_> not necesarelly <mmarkus_> (that also) <galderz> i'm all ears :) <mmarkus_> considering your example with cas= 12345 (see few lines bellow) <mmarkus_> I do a put that results in cas 12345 <mmarkus_> then immediately after, one does another put(k), resulting in cas 54321 <mmarkus_> then you do an getWithCas and obtain cas=54321 on the server <mmarkus_> now you do a replaceIfUnmodified(k, 54321) <mmarkus_> the cas will match, and the replace operation will take place. But you really wanted it not to take place, as per your example, isn't it? <galderz> well, depends who does the getWithCas <galderz> or more specifically, who did the other put <galderz> what u know is that since u called getWithCas till u do replace, no one else has modified it <galderz> and that's what u do with cas <galderz> u get something, u check the value <mmarkus_> ah, you want to use cas for getting the following gurante: you read data, and based on what you read you want to modify it. Now you only modify it if it hasn't changed in between, correct? <galderz> it matches <galderz> indeed :) <galderz> that's what a cas does :) <galderz> u get something <galderz> u assume that it has X <mmarkus_> I see it now! <galderz> :) <mmarkus_> I was thinking at a different scenario. <mmarkus_> you put data, and at a further point you want to modify it only if it hasn't changed <mmarkus_> but, yeah, this doesn't sound as common as the other scenario, with read * aslak has quit (Quit: Ex-Chat) <mmarkus_> I got it now - thanks for the explanation! * manik_ has quit (Quit: manik_) <galderz> mmarkus_, u're welcome :) <galderz> we'll have to make sure this is explained properly in the docu <galderz> i'll add a jira -- 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, 9 months

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[JBoss JIRA] Created: (ISPN-241) improve test harness to use nice test names for nodes

by Mircea Markus (JIRA)

improve test harness to use nice test names for nodes ----------------------------------------------------- Key: ISPN-241 URL: https://jira.jboss.org/jira/browse/ISPN-241 Project: Infinispan Issue Type: Feature Request Reporter: Mircea Markus Assignee: Mircea Markus Priority: Minor Fix For: 4.0.0.GA all replicate caches are being created through a TestCacheManagerFactory, TestCacheManagerFactory would make sure to call TransportType.setNodeName on each cache -- 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, 9 months

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infinispan-issues June 2010