February 2016 - infinispan-issues

[JBoss JIRA] (ISPN-5042) Remote gets caused by writes could be replicated only to the primary owner

by Tristan Tarrant (JIRA)

[ https://issues.jboss.org/browse/ISPN-5042?page=com.atlassian.jira.plugin.... ] Tristan Tarrant updated ISPN-5042: ---------------------------------- Fix Version/s: 8.2.0.CR1 (was: 8.2.0.Beta2) > Remote gets caused by writes could be replicated only to the primary owner > -------------------------------------------------------------------------- > > Key: ISPN-5042 > URL: https://issues.jboss.org/browse/ISPN-5042 > Project: Infinispan > Issue Type: Enhancement > Components: Core, State Transfer > Affects Versions: 7.1.0.Alpha1 > Reporter: Dan Berindei > Priority: Minor > Labels: 7.0 > Fix For: 8.2.0.CR1 > > > For write operations that need the previous value, a write CH-only owner that doesn't have a key locally will attempt to retrieve the key from the read CH-owners. > Sending the remote get command to all the previous owners will create extra load on the cluster during state transfer, so it should be more efficient to send the remote get only to the primary owner. Even though the latency of some write operations will be higher, the average latency should be better. -- This message was sent by Atlassian JIRA (v6.4.11#64026)

10 years, 1 month

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[JBoss JIRA] (ISPN-5218) Add batching to the AdvancedCacheWriter interface

by Tristan Tarrant (JIRA)

[ https://issues.jboss.org/browse/ISPN-5218?page=com.atlassian.jira.plugin.... ] Tristan Tarrant updated ISPN-5218: ---------------------------------- Fix Version/s: 8.2.0.CR1 (was: 8.2.0.Beta2) > Add batching to the AdvancedCacheWriter interface > ------------------------------------------------- > > Key: ISPN-5218 > URL: https://issues.jboss.org/browse/ISPN-5218 > Project: Infinispan > Issue Type: Enhancement > Components: Loaders and Stores > Reporter: Tristan Tarrant > Fix For: 8.2.0.CR1 > > > The AdvancedCacheWriter should be extended with a write operation which takes multiple entries so that stores which can do batching can optimize this. This would benefit both passivation and the async writer. > Immediate users would be the JDBC stores. -- This message was sent by Atlassian JIRA (v6.4.11#64026)

10 years, 1 month

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[JBoss JIRA] (ISPN-5093) Granularity of remote event listener implementations doing the same job

by Tristan Tarrant (JIRA)

[ https://issues.jboss.org/browse/ISPN-5093?page=com.atlassian.jira.plugin.... ] Tristan Tarrant updated ISPN-5093: ---------------------------------- Fix Version/s: 8.2.0.CR1 (was: 8.2.0.Beta2) > Granularity of remote event listener implementations doing the same job > ----------------------------------------------------------------------- > > Key: ISPN-5093 > URL: https://issues.jboss.org/browse/ISPN-5093 > Project: Infinispan > Issue Type: Enhancement > Components: Remote Protocols > Reporter: Galder Zamarreño > Assignee: Galder Zamarreño > Fix For: 8.2.0.CR1 > > > Currently, if N clients add the same listener to a cache that does the same job, e.g. keeping a near cache consistent, this results in N server-side cluster listeners created, each potentially installed in different nodes. If one of those nodes fails, all clients that had a listener registered to that node will have to find a different node for this listener. > The downsides of this approach is that there are as many cluster listeners installed as clients have added listeners (or have near cache enabled), which might not very efficient. If a node goes down, all clients that have cluster listeners there need to failover to some other node. > The advantage of this approach is simplicity of the approach to decide where to add the listener and where to failover to. > For this type of scenarios, an alternative set up might be worth exploring: > If all these client side listeners are interested in exactly the same events, and the client ID would be exposed via the RemoteCache API, a server side cluster listener multi-plexing between all these clients could be potentially built. In other words, instead of having N clients register N cluster listeners, the first client would register the cluster listener with a client listener ID, and if more registrations were added with the same client listener ID, the connections would be added to the existing cluster listener implementation. > The maximise the efficiency of this solution, all clients (even running in different JMVs), given the same client listener ID, should agree upon the node to add the listener in. For a distributed cache, hashing on the cache name would work. For replicated caches, since there's no hashing available, the first node of the view could be used. > Since the logic to be executed server-side varies between being the first node adding the client listener vs the others, synchronization would be added to make sure that the first invocation only creates the cluster listener, and the others simply add the channel to the listener. > Failover is a bit more tricky too, because if the node with the cluster listener goes down, all the clients have to failover, which again exposes a 1st vs the others type of logic. > Advantages of this approach is the reduction in number of cluster listeners and potentially efficiency coming from a single cluster listener implementation server side. > The disadvantages come from the server side logic to add/failover a cluster listener, which need to take into account if the listener is present or not. Other disadvantages come from needing the clients to use some specific routing for adding listeners for same node. -- This message was sent by Atlassian JIRA (v6.4.11#64026)

10 years, 1 month

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[JBoss JIRA] (ISPN-5077) Custom remote events can be slightly inefficient

by Tristan Tarrant (JIRA)

[ https://issues.jboss.org/browse/ISPN-5077?page=com.atlassian.jira.plugin.... ] Tristan Tarrant updated ISPN-5077: ---------------------------------- Fix Version/s: 8.2.0.CR1 (was: 8.2.0.Beta2) > Custom remote events can be slightly inefficient > ------------------------------------------------ > > Key: ISPN-5077 > URL: https://issues.jboss.org/browse/ISPN-5077 > Project: Infinispan > Issue Type: Enhancement > Components: hot, Remote Protocols > Affects Versions: 7.0.2.Final > Reporter: Galder Zamarreño > Fix For: 8.2.0.CR1 > > > Something we might want to improve for Hot Rod 3.0 protocol: > [16:40] <galderz> i've been thinking further about converters, and I think i've found a slight mismatch between what converter means for embedded listeners vs remote listeners > [16:40] <wburns> oh yeah? > [16:40] <galderz> for embedded listeners, it essentially transforms what you see as `value` > [16:41] <galderz> with the knowledge that key and metadata information will be shipped > [16:41] <galderz> the way i mapped converter to remote listeners is that whatever the converter returns, we ship that, as is, to the client > [16:41] <galderz> so, if a remote listener wants a custom event that includes key + value > [16:41] <galderz> it needs to develop a converter impl that returns bytes containing key + value > [16:41] <galderz> which is inefficient because you are passing around the key twice > [16:42] <galderz> once as part of the event itself, and again inside the converted value > [16:42] <galderz> inefficient from the POV of shipping stuff around from other nodes to where the cluster listener is located > [16:44] <wburns> yeah makes sense > [16:44] <galderz> not a major issue but not easy to fix without changing semantics or public protocol -- This message was sent by Atlassian JIRA (v6.4.11#64026)

10 years, 1 month

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[JBoss JIRA] (ISPN-5241) Cache topology updates should use the NO_FC flag

by Tristan Tarrant (JIRA)

[ https://issues.jboss.org/browse/ISPN-5241?page=com.atlassian.jira.plugin.... ] Tristan Tarrant updated ISPN-5241: ---------------------------------- Fix Version/s: 8.2.0.CR1 (was: 8.2.0.Beta2) > Cache topology updates should use the NO_FC flag > ------------------------------------------------ > > Key: ISPN-5241 > URL: https://issues.jboss.org/browse/ISPN-5241 > Project: Infinispan > Issue Type: Bug > Components: Core, State Transfer > Affects Versions: 7.1.0.Final > Reporter: Dan Berindei > Assignee: Dan Berindei > Priority: Critical > Fix For: 8.2.0.CR1 > > > Topology updates are sent while holding the ClusterCacheStatus lock, so they should never block. However, when MFC is present, the topology update can block waiting for enough credits. As most CacheTopologyControlCommands need to acquire the ClusterCacheStatus lock, this can easily lead to a full remote-executor pool (and OOB pool) and the appearance of a deadlock. > What's more, if one node is not responsive, it can block all the other nodes from receiving further topology updates. Topology updates should be as prompt as possible, so we should use the NO_FC flag to ensure that each node receives topology updates as soon as possible. -- This message was sent by Atlassian JIRA (v6.4.11#64026)

10 years, 1 month

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[JBoss JIRA] (ISPN-5179) Add distributed execution and map/reduce job statistics

by Tristan Tarrant (JIRA)

[ https://issues.jboss.org/browse/ISPN-5179?page=com.atlassian.jira.plugin.... ] Tristan Tarrant updated ISPN-5179: ---------------------------------- Fix Version/s: 8.2.0.CR1 (was: 8.2.0.Beta2) > Add distributed execution and map/reduce job statistics > -------------------------------------------------------- > > Key: ISPN-5179 > URL: https://issues.jboss.org/browse/ISPN-5179 > Project: Infinispan > Issue Type: Feature Request > Components: JMX, reporting and management > Reporter: Vladimir Blagojevic > Assignee: Vladimir Blagojevic > Fix For: 8.2.0.CR1 > > > We should add DMR/JMX statistics for the running distributed execution jobs as well as map/reduce jobs. The statistics will also include overview/total system statistics of previously executed jobs; we might store statistics of individual executed jobs in some internal cache. However, the primary objective is to calculate and maintain dist.exec and map/reduce job statistics for Infinispan admin console. -- This message was sent by Atlassian JIRA (v6.4.11#64026)

10 years, 1 month

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[JBoss JIRA] (ISPN-5238) Maintain session in ispn-mgmt-console (ctrl+R)

by Tristan Tarrant (JIRA)

[ https://issues.jboss.org/browse/ISPN-5238?page=com.atlassian.jira.plugin.... ] Tristan Tarrant updated ISPN-5238: ---------------------------------- Fix Version/s: 8.2.0.CR1 (was: 8.2.0.Beta2) > Maintain session in ispn-mgmt-console (ctrl+R) > ---------------------------------------------- > > Key: ISPN-5238 > URL: https://issues.jboss.org/browse/ISPN-5238 > Project: Infinispan > Issue Type: Task > Components: JMX, reporting and management > Reporter: Tomas Sykora > Assignee: Vladimir Blagojevic > Fix For: 8.2.0.CR1 > > > When you reload a page in Infinispan Management Console data is lost and you need to re-login. We need to make sure that the session is maintained properly and operations like ctrl+R, F5 etc. does not affect behaviour negatively. > It will also help with development and testing when you need to reload a page to see some changes from time to time. > I did a small research around this topic and made some experiments but I was not able to achieve what I wanted. Maybe we can come up with even different approach. > Anyway I suppose we can stick to the idea that ctrl+R should just reload the page and data successfully. -- This message was sent by Atlassian JIRA (v6.4.11#64026)

10 years, 1 month

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[JBoss JIRA] (ISPN-5415) Expose protobuf entries to scripting

by Tristan Tarrant (JIRA)

[ https://issues.jboss.org/browse/ISPN-5415?page=com.atlassian.jira.plugin.... ] Tristan Tarrant updated ISPN-5415: ---------------------------------- Fix Version/s: 8.2.0.CR1 (was: 8.2.0.Beta2) > Expose protobuf entries to scripting > ------------------------------------ > > Key: ISPN-5415 > URL: https://issues.jboss.org/browse/ISPN-5415 > Project: Infinispan > Issue Type: Feature Request > Components: Remote Querying > Affects Versions: 8.0.0.Final > Reporter: Adrian Nistor > Assignee: Adrian Nistor > Fix For: 8.2.0.CR1 > > > We need an alternative API for Protostream marshalling that is easy to consume from scripting languages. The messages need to be unmarshalled into a map-like object that can be accessed easily from scripting languages. No marshaller implementation code should be provided by users, also no annotations. -- This message was sent by Atlassian JIRA (v6.4.11#64026)

10 years, 1 month

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[JBoss JIRA] (ISPN-5211) NPE on NumericVersionGenerator.start() when JGroups configuration resource not found

by Tristan Tarrant (JIRA)

[ https://issues.jboss.org/browse/ISPN-5211?page=com.atlassian.jira.plugin.... ] Tristan Tarrant updated ISPN-5211: ---------------------------------- Fix Version/s: 8.2.0.CR1 (was: 8.2.0.Beta2) > NPE on NumericVersionGenerator.start() when JGroups configuration resource not found > ------------------------------------------------------------------------------------ > > Key: ISPN-5211 > URL: https://issues.jboss.org/browse/ISPN-5211 > Project: Infinispan > Issue Type: Bug > Components: Core > Affects Versions: 7.1.0.Final > Reporter: Sanne Grinovero > Fix For: 8.2.0.CR1 > > > This is easy to reproduce: start a {{CacheManager}} which has a {{Transport}} configured with a non-existent resource name for the JGroups configuration. > Would be great to have a better error message. -- This message was sent by Atlassian JIRA (v6.4.11#64026)

10 years, 1 month

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[JBoss JIRA] (ISPN-5163) A write operation with the SKIP_LOCKING flag can roll back the transaction

by Tristan Tarrant (JIRA)

[ https://issues.jboss.org/browse/ISPN-5163?page=com.atlassian.jira.plugin.... ] Tristan Tarrant updated ISPN-5163: ---------------------------------- Fix Version/s: 8.2.0.CR1 (was: 8.2.0.Beta2) > A write operation with the SKIP_LOCKING flag can roll back the transaction > -------------------------------------------------------------------------- > > Key: ISPN-5163 > URL: https://issues.jboss.org/browse/ISPN-5163 > Project: Infinispan > Issue Type: Bug > Components: Core > Affects Versions: 7.0.3.Final, 7.1.0.Beta1 > Reporter: Dan Berindei > Assignee: Dan Berindei > Fix For: 8.2.0.CR1 > > > When a write operation has the SKIP_LOCKING flag, it does not send a {{LockControlCommand}} to the primary owner, but it can send a {{ClusteredGetCommand}} with {{acquireRemoteLocks=true}} instead. The {{ClusteredGetCommmand}} will then execute a {{LockControlCommand}} with the origin not set properly, and {{TxInterceptor}} will roll back the transaction because the originator ({{null}}) appears to have left the cluster. -- This message was sent by Atlassian JIRA (v6.4.11#64026)

10 years, 1 month

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infinispan-issues February 2016