Infinispan embedded off-heap cache
by yavuz gokirmak
Hi all,
Is it possible to use infinispan as embedded off-heap cache.
As I understood it is not implemented yet.
If this is the case, we are planning to put effort for off-heap embedded
cache development.
I really need to hear your advices,
best regards
10 years, 1 month
Design change in Infinispan Query
by Sanne Grinovero
Hello all,
currently Infinispan Query is an interceptor registering on the
specific Cache instance which has indexing enabled; one such
interceptor is doing all what it needs to do in the sole scope of the
cache it was registered in.
If you enable indexing - for example - on 3 different caches, there
will be 3 different Hibernate Search engines started in background,
and they are all unaware of each other.
After some design discussions with Ales for CapeDwarf, but also
calling attention on something that bothered me since some time, I'd
evaluate the option to have a single Hibernate Search Engine
registered in the CacheManager, and have it shared across indexed
caches.
Current design limitations:
A- If they are all configured to use the same base directory to
store indexes, and happen to have same-named indexes, they'll share
the index without being aware of each other. This is going to break
unless the user configures some tricky parameters, and even so
performance won't be great: instances will lock each other out, or at
best write in alternate turns.
B- The search engine isn't particularly "heavy", still it would be
nice to share some components and internal services.
C- Configuration details which need some care - like injecting a
JGroups channel for clustering - needs to be done right isolating each
instance (so large parts of configuration would be quite similar but
not totally equal)
D- Incoming messages into a JGroups Receiver need to be routed not
only among indexes, but also among Engine instances. This prevents
Query to reuse code from Hibernate Search.
Problems with a unified Hibernate Search Engine:
1#- Isolation of types / indexes. If the same indexed class is
stored in different (indexed) caches, they'll share the same index. Is
it a problem? I'm tempted to consider this a good thing, but wonder if
it would surprise some users. Would you expect that?
2#- configuration format overhaul: indexing options won't be set on
the cache section but in the global section. I'm looking forward to
use the schema extensions anyway to provide a better configuration
experience than the current <properties />.
3#- Assuming 1# is fine, when a search hit is found I'd need to be
able to figure out from which cache the value should be loaded.
3#A we could have the cache name encoded in the index, as part
of the identifier: {PK,cacheName}
3#B we actually shard the index, keeping a physically separate
index per cache. This would mean searching on the joint index view but
extracting hits from specific indexes to keep track of "which index"..
I think we can do that but it's definitely tricky.
It's likely easier to keep indexed values from different caches in
different indexes. that would mean to reject #1 and mess with the user
defined index name, to add for example the cache name to the user
defined string.
Any comment?
Cheers,
Sanne
10 years, 2 months
singleton @Listeners
by Mircea Markus
This is a problem that pops up constantly:
User: "I add a listener to my distributed/replicated cache but this gets invoked numOwners times - can I make that to be invoked only once cluster wise?"
Developer: "Yes, you can! You have to do that and that..."
What about a "singleton" attribute on the Listener? Would make the reply shorter:
Developer: "Use @Listener(singleton=true)"
Cheers,
Mircea
10 years, 8 months
NPE in MapReduceTask running in cluster
by Matej Lazar
NPE ocures while running CapeDwarf cluster tests, see stack below.
Null comes from MapReduceTask.invokeEverywhere
13:36:51,053 INFO [org.jboss.as.clustering.infinispan] (http-/192.168.30.248:8080-1) JBAS010281: Started search_capedwarf-test cache from capedwarf container
13:36:51,058 DEBUG [org.infinispan.distexec.mapreduce.MapReduceTask] (http-/192.168.30.248:8080-1) Invoking MapCombineCommand [keys=[], taskId=14c75f18-3861-4a06-8a4a-b1592d542d14] across entire cluster
*13:36:51,065 DEBUG [org.infinispan.distexec.mapreduce.MapReduceTask] (http-/192.168.30.248:8080-1) Invoked MapCombineCommand [keys=[], taskId=14c75f18-3861-4a06-8a4a-b1592d542d14] across entire cluster, results are {node-b/capedwarf=null}*
13:36:51,067 DEBUG [org.infinispan.distexec.mapreduce.MapReduceTask] (http-/192.168.30.248:8080-1) Invoking MapCombineCommand [keys=[], taskId=14c75f18-3861-4a06-8a4a-b1592d542d14] locally
13:36:51,069 DEBUG [org.infinispan.distexec.mapreduce.MapReduceTask] (http-/192.168.30.248:8080-1) Invoked MapCombineCommand [keys=[], taskId=14c75f18-3861-4a06-8a4a-b1592d542d14] locally
Any idea ?
Thanks,
Matej.
java.lang.NullPointerException
at org.infinispan.distexec.mapreduce.MapReduceTask.mergeResponse(MapReduceTask.java:530)
at org.infinispan.distexec.mapreduce.MapReduceTask.executeMapPhaseWithLocalReduction(MapReduceTask.java:439)
at org.infinispan.distexec.mapreduce.MapReduceTask.execute(MapReduceTask.java:328)
at org.infinispan.distexec.mapreduce.MapReduceTask.execute(MapReduceTask.java:692)
at org.jboss.capedwarf.search.CapedwarfSearchService.listIndexes(CapedwarfSearchService.java:94)
at org.jboss.test.capedwarf.cluster.SearchTestCase.clear(SearchTestCase.java:360)
at org.jboss.test.capedwarf.cluster.SearchTestCase.cleanpOnStart(SearchTestCase.java:51)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:45)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:42)
at org.jboss.arquillian.junit.Arquillian$6$1.invoke(Arquillian.java:270)
at org.jboss.arquillian.container.test.impl.execution.LocalTestExecuter.execute(LocalTestExecuter.java:60)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at org.jboss.arquillian.core.impl.ObserverImpl.invoke(ObserverImpl.java:90)
at org.jboss.arquillian.core.impl.EventContextImpl.invokeObservers(EventContextImpl.java:99)
at org.jboss.arquillian.core.impl.EventContextImpl.proceed(EventContextImpl.java:81)
at org.jboss.arquillian.core.impl.ManagerImpl.fire(ManagerImpl.java:135)
at org.jboss.arquillian.core.impl.ManagerImpl.fire(ManagerImpl.java:115)
at org.jboss.arquillian.core.impl.EventImpl.fire(EventImpl.java:67)
at org.jboss.arquillian.container.test.impl.execution.ContainerTestExecuter.execute(ContainerTestExecuter.java:38)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at org.jboss.arquillian.core.impl.ObserverImpl.invoke(ObserverImpl.java:90)
at org.jboss.arquillian.core.impl.EventContextImpl.invokeObservers(EventContextImpl.java:99)
at org.jboss.arquillian.core.impl.EventContextImpl.proceed(EventContextImpl.java:81)
at org.jboss.arquillian.test.impl.TestContextHandler.createTestContext(TestContextHandler.java:89)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at org.jboss.arquillian.core.impl.ObserverImpl.invoke(ObserverImpl.java:90)
at org.jboss.arquillian.core.impl.EventContextImpl.proceed(EventContextImpl.java:88)
at org.jboss.arquillian.test.impl.TestContextHandler.createClassContext(TestContextHandler.java:75)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at org.jboss.arquillian.core.impl.ObserverImpl.invoke(ObserverImpl.java:90)
at org.jboss.arquillian.core.impl.EventContextImpl.proceed(EventContextImpl.java:88)
at org.jboss.arquillian.test.impl.TestContextHandler.createSuiteContext(TestContextHandler.java:60)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at org.jboss.arquillian.core.impl.ObserverImpl.invoke(ObserverImpl.java:90)
at org.jboss.arquillian.core.impl.EventContextImpl.proceed(EventContextImpl.java:88)
at org.jboss.arquillian.core.impl.ManagerImpl.fire(ManagerImpl.java:135)
at org.jboss.arquillian.test.impl.EventTestRunnerAdaptor.test(EventTestRunnerAdaptor.java:111)
at org.jboss.arquillian.junit.Arquillian$6.evaluate(Arquillian.java:263)
at org.jboss.arquillian.junit.Arquillian$4.evaluate(Arquillian.java:226)
at org.jboss.arquillian.junit.Arquillian.multiExecute(Arquillian.java:314)
at org.jboss.arquillian.junit.Arquillian.access$100(Arquillian.java:46)
at org.jboss.arquillian.junit.Arquillian$5.evaluate(Arquillian.java:240)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:263)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:68)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:47)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:231)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:60)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:229)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:50)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:222)
at org.jboss.arquillian.junit.Arquillian$2.evaluate(Arquillian.java:185)
at org.jboss.arquillian.junit.Arquillian.multiExecute(Arquillian.java:314)
at org.jboss.arquillian.junit.Arquillian.access$100(Arquillian.java:46)
at org.jboss.arquillian.junit.Arquillian$3.evaluate(Arquillian.java:199)
at org.junit.runners.ParentRunner.run(ParentRunner.java:300)
at org.jboss.arquillian.junit.Arquillian.run(Arquillian.java:147)
at org.junit.runner.JUnitCore.run(JUnitCore.java:157)
at org.junit.runner.JUnitCore.run(JUnitCore.java:136)
at org.jboss.arquillian.junit.container.JUnitTestRunner.execute(JUnitTestRunner.java:65)
at org.jboss.arquillian.protocol.servlet.runner.ServletTestRunner.executeTest(ServletTestRunner.java:160)
at org.jboss.arquillian.protocol.servlet.runner.ServletTestRunner.execute(ServletTestRunner.java:126)
at org.jboss.arquillian.protocol.servlet.runner.ServletTestRunner.doGet(ServletTestRunner.java:90)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:734)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:847)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:329)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248)
at org.jboss.weld.servlet.ConversationPropagationFilter.doFilter(ConversationPropagationFilter.java:62)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:280)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248)
at org.jboss.capedwarf.appidentity.GAEFilter.doFilter(GAEFilter.java:57)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:280)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:275)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161)
at org.jboss.modcluster.container.jbossweb.JBossWebContext$RequestListenerValve.event(JBossWebContext.java:67)
at org.jboss.modcluster.container.jbossweb.JBossWebContext$RequestListenerValve.invoke(JBossWebContext.java:48)
at org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:165)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:155)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:372)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:877)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:679)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:931)
at java.lang.Thread.run(Thread.java:722)
10 years, 11 months
Re: [infinispan-dev] Removing Infinispan dependency on the Hibernate-Infinispan module in 4.x
by Galder Zamarreño
Scott, what do you suggest doing instead then? Without the commands, evictAll invalidation won't work.
Are you suggesting that I revert back to using the cache as a notification bus so that regions are invalidated?
On Feb 8, 2012, at 4:13 PM, Scott Marlow wrote:
> http://lists.jboss.org/pipermail/infinispan-dev/2012-February/010125.html has more context.
>
> Since there are no easy/quick fixes that can be applied at this time, to remove the AS7 Infinispan dependency on the Hibernate-Infinispan module, I think we should avoid depending on the service loader way to supply the custom commands (in the Hibernate-Infinispan module), at least until this can be addressed elsewhere.
>
> I propose that the Hibernate-Infinispan second level cache should not use the Service Loader to pass custom commands into Infinispan. If we agree, I'll create a jira for this.
>
> Scott
--
Galder Zamarreño
Sr. Software Engineer
Infinispan, JBoss Cache
10 years, 11 months
a nice HTML5 console for Infinispan & a question on MBean names...
by James Strachan
Howdy folks!
I'm working on a HTML5 web console called hawtio (http://hawt.io)
which is a pluggable & modular console for various Java libraries,
frameworks and containers. e.g. today it has plugins for Apache Camel,
ActiveMQ, Fuse Fabric as well as JMX, OSGi & Logging - then plugins
for containers like Tomcat, Jetty, JBoss, Karaf/ServiceMix. We've a
cute dashboard & wiki which uses git to store its configuration/files
too.
Anyway the reason I bring this up is yesterday we had our first
Infinispan issue with hawtio:
https://github.com/hawtio/hawtio/issues/134
its now fixed; but it got me thinking if we could have a nice little
hawtio plugin for Infinispan so folks could make dashboards of real
time metrics of caches, browse caches etc.
I enabled metrics and managed to get a basic JMX tree going with real
time metrics on attributes/charts on a single Cache using vanilla JMX
in hawtio with Infinispan. I've attached an example of how it looks if
you're interested.
The thing is, there's no way to easily click on a folder and get all
the MBeans for the Statistics. If that were the case then hawtio would
show a sortable table of all the metrics of all the caches in one
table view; or we could easily chart any of the metrics of all the
caches in one real time chart easily.
It'd be a fairly minor change; we'd just need to change the ObjectName
used for the Cache mbeans from this naming convention:
Infinispan:type=Cache,name="drink(local)",manager="DefaultCacheManager",component=Statistics
to this (just moving the "name" property to the end)
Infinispan:type=Cache,manager="DefaultCacheManager",component=Statistics,name="drink(local)"
then in the hawtio JMX tree we could select the "Statistics" folder
and see all of the mbeans in a table and so you could sort the table
by metric, see all the values on a single screen & create real time
charts of any permutation of cache & metric.
I wondered if folks fancied either adopting this naming convention
(putting the name last and the component kind before it) or adding a
configuration flag so we could enable this kind of JMX naming
convention style? It'd make things much more hawt when using hawtio
and infinispan! :). You'd get nice HTML5 statistics in hawtio
instantly on all caches.
I also wondered if folks fancied adding a few more operations to the
Cache mbean so that we could build a little console in hawtio for
Infinispan; to view/update contents of the caches or flush them etc?
As a background; since JMX is usually the lowest common denominator,
hawtio defaults to using it to detect whats in a JVM. If we discover a
particular kind of MBean we then enable/disable different parts of the
hawtio UI dynamically. e.g. if you're viewing a JVM then you deploy
some Apache Camel, hey presto, the Camel UI in hawtio appears as a
tab.
>From a technology perspective hawtio is all static HTML5 / JavaScript
on the client; it then communicates with the MBeans via an awesome
library called jolokia (http://jolokia.org/) which exposes JMX over
HTTP/JSON.
So hawtio could totally use the Infinispan REST API (but it'd be nice
if there was an mbean registered to indicate the REST API is running
and where to find it so hawtio could discover it). However you can
usually rely more on JMX being there (folks don't always deploy
Infinispan inside a web container with a REST API). So I wondered if
folks fancied adding a simple little JMX API to query / update / flush
the cache that we could then use to build a little HTML5 console in
hawtio?
e.g something valuely like:
interface CacheMBean {
...
String getJson(String key)
void setJson(String key, String value);
// lets browse the keys - in a simple paginated way some how..
Set<String> getCacheKeys( String from, int count);
}
You could return Objects; jolokia automarshalls things to JSON; though
maybe having a specific JSON reading/writing mbean (using
jolokia/jackson under the covers) might be neater as it'd work with
all JMX tools?
So in summary, I'm happy to help hack a little hawtio plugin for
infinispan if anyone's interested. Making the cache ObjectName change
would be a nice quick win & if more operations get added to the MBeans
we can then easily build a better hawtio plugin for Infinispan.
Thoughts?
--
James
-------
Red Hat
Email: jstracha(a)redhat.com
Web: http://fusesource.com
Twitter: jstrachan, fusenews
Blog: http://macstrac.blogspot.com/
Open Source Integration
11 years, 1 month
[ISPN-1797]MongoDB CacheStore
by Guillaume SCHEIBEL
Hi everyone,
Finally, I made the last (for the moment actually :) ) touch to the mongoDB
cache store, the pull request #1473 has been updated.
Hope it's better now, let know what do you think about it.
Cheers,
Guillaume
11 years, 1 month
Minutes Infinispan meeting in London
by Bela Ban
Mircea, Dan, Pedro, Sanne and I had a meeting in London this week on how
to use the new features of JGroups 3.3 in Infinispan 5.3, I've copied
the minutes from the wiki below.
London meeting
Bela, Pedro, Mircea, Dan, Sanne
Message bundling and OOB messages
In 3.3, all messages will be bundled, not just regular messages, but
also OOB messages. The way this works on the sender side is:
- A thread sending a message in the transport adds it to a queue
- There's one thread which dequeues messages and sends them as bundles
- It sends a messages bundle if the max size has been reached, or
there are no more messages in the queue
- This means single messages are sent immediately, or we fill up a
bundle (in a few microseconds) and send it
Impact on Infinispan:
- Use DONT_BUNDLE instead of OOB if you don't want to bundle messages
- However, even DONT_BUNDLE might get deprecated
- If we have 1 sender invoking sync RPCs, we don't need to set
DONT_BUNDLE anymore
- If we have multiple senders invoking sync RPCs, performance should
get better as RPCs and responses are bundled
- Since bundling will result in message *batches* on the receiver,
performance should increase in general
Message batching
Message bundles sent by a sender are received as message batches
(MessageBatch) by the receivers. When a batch is received, the batch
is passed up using up(MessageBatch).
Protocols can remove / replace / add messages in a batch and pass the
batch further up.
The advantage of a batch is that resources such as locks are acquired
only once for a batch of N messages rather than N times. Example: when
NAKACK2 receives a batch of 10 messages, it adds the 10 messages to
the receiver table in a bulk operation, which is more efficient than
doing this 10 times.
Further optimizations on batching (probably 3.4):
- Remove similar ops, e.g. UNICAST3 acks for A:15, A:25 and A:35 can
be clubbed together into just ack(A:35)
- Merge similar headers, e.g. multicast messages 20-30 can be orderd
by seqno, and we simply send a range [20..30] and let the receiver
generate the headers on the fly
Async Invocation API (AIA)
JGroups only passes up messages to Infinispan, which then uses its own
thread pool to deliver them. E.g. based on Pedro's code for TO, we
could parallelize delivery based on the target keys of the
transaction. E.g if we have tx1 modifying keys {A,B,C} and tx2
modifying keys {T,U}, then tx1 and tx2 can be run concurrently.
If tx1 and tx2 modify overlapping key sets, then tx2 would be queued
and executed *after* tx1, not taking up a thread from the pool,
reducing the chances of the thread pool maxing out and also
ensuring different threads are not going to contend on the locks
on same keys.
The implementation could be done in an interceptor fronting the
interceptor stack, which queues dependent TXs and
- when ready to be executed - sends them up the interceptor stack on a
thread from
the internal pool.
Infinispan having its own thread pool means that JGroups threads will
not block anymore, e.g. trying to acquire a lock for a TX. The size of
those pools can therefore be reduced.
The advantage of AIA is that it's up to Infinispan, not JGroups, how
to deliver messages. JGroups delivers messages based on the order in
which they were sent by a sender (FIFO), whereas Infinispan can make
much more informed decisions as to how to deliver the messages.
Internal thread pool for JGroups
All JGroups internal messages use the internal thread pool (message
flag=INTERNAL). Not having to share the OOB pool with apps (such as
Infinispan) means that internal messages can always be processed, and
are not discarded or blocked, e.g. by a maxed out thread pool.
The internal pool can be switched off, and - if AIA is implemented in
Infinispan - the number of OOB and regular threads can be massively
reduced. The internal thread pool doesn't need to be big either.
UNICAST3
Successor to UNICAST and UNICAST2, best of both worlds. Acks single
messages quickly, so we have no first-msg-lost or last-msg-lost issues
anymore. Doesn't generate many acks though.
Proposed to trigger and ACK only after a certain number of messages
rather than after any batch to avoid ACK on small batches.
https://issues.jboss.org/browse/JGRP-1594
--
Bela Ban, JGroups lead (http://www.jgroups.org)
11 years, 2 months
