Facing issues with Kafka 0.8.1.1 and kafka-reassign-partitions.sh
Hi, I am trying to add new brokers to an existing 8 nodes Kafka cluster. We have around 10 topics and the number of partition is set to 50. In order to test the reassgin-partitions scripts, I tried on...
View ArticleRunning JMeter unit tests (test errors)
Hi all, I downloaded JMeter 2.9 and would like to run its unit test suite. I followed the instructions in its build.xml file to build JMeter from source. However, the following command fails (well not...
View ArticleCan a zookeeper client be made to influence the client-to-server heartbeats?
In distributed systems that uses Apache Zookeeper for co-ordination, each component is a client to the Zookeeper server, and it instantiates a zookeeper instance, which in the background is sending...
View ArticleInferred Triples
I'm working with a medium sized dataset of around 8 million triples, and I'm using fuseki to query it via an inference model (either RDFS or OWL micro). This works, but I'm looking to boost performance...
View ArticlePom.xml errors in Wicket
Hello, I am getting an error: Missing artifact org.apache.wicket:wicket:pom:6.15.0:compile This is when I try to update to 6.15.0 from 1.5.5 .. I also get it for slf4j.. Here are the two errors...
View ArticleHow to abort retry in onRedelivery processor?
I have an OnException for SocketTimeoutException, at context level. The OnException has a redeliveryPolicy that does a number of retries. But I would like to choose whether to retry based on the...
View ArticleFlex Installer Not Correctly Extracting AIR SDK
Hi, I just noticed that when using the Flex SDK installer to download Flex and AIR, it does not correctly overlay the AIR SDK over Flex. After the installation there is a directory called "in" in the...
View ArticleExtracting a reactor artifact set out of maven repo
Hi My company is doing daily release builds for quite a few components ( which fill up maven release repo after a while). and we dont use staging ( please dont drill me on this ). Eventually one of the...
View ArticleMock Repository Manager Maven Plugin 1.0-beta-2 Released
Hi, The Mojo team is pleased to announce the release of the Mock Repository Manager Maven Plugin version 1.0-beta-2. The Mock Repository Manager Plugin is used when you want to test Maven plugins...
View ArticleZookeeper Version Mismatch Problem In 0.8.1
Hi All, I’m seeing the following issues after running a Kafka broker cluster for 2 months: [2014-07-07 17:54:19,798] ERROR Conditional update of path...
View ArticleWhy do these two trivial Jetty routes return different response codes?
Hi, I can't understand why the following code produces different outputs for two trivial Jetty routes. The first route uses an anonymous processor to set the HTTP response code to 200, but the output...
View ArticleonException for multiple camelContexts
Hi, I have multiple camelContexts - each has multiple routes - we kind of segregated the routes into camel contexts by domain. Right now, the need is to have a consistent exception strategy across all...
View ArticleMaven Central's is nexus?
Hi I wonder if maven central is a nexus running smart proxy to sync all sibling repos? Thanks -Dan
View ArticleToo Many Open Files Broker Error
Hi Guys, I’m seeing the following errors from the 0.8.1.1 broker. This occurs most often on the Controller machine. Then the controller process crashes, and the controller bounces to other machines,...
View Articleproducer performance
While testing kafka producer performance, I found 2 testing scripts. 1) performance testing script in kafka distribution bin/kafka-producer-perf-test.sh --broker-list localhost:9092 --messages 10000000...
View ArticleNew Consumer Design
Hi All, We have written a wiki a few weeks back proposing a single-threaded ZK-free consumer client design for 0.9: https://cwiki.apache.org/confluence/display/KAFKA/Kafka+0.9+Consumer+Rewrite+Design...
View ArticleWicket version 6.15 referring to older Jar
I have gotten all the latest jars installed for the Wicket 6.15. I can verify this in the Maven Dependencies directory. For some reason, I feel it is still pointing to an older version of Wicket. I am...
View ArticleAvoiding N+1 on collection in recursive relation
I have an entity (A) that has a recursive OneToMany relation with itself (children). A also has a OneToMany relation to entity B. Whenever A is fetched, the queries to fetch B for entity A and its...
View Articlehadoop 2.4.0 and pig 0.12.1
Encountered the same issue. The problem was -Djavac.version for the ant command mismatched the actual javac being used. Still weird to me that the mismatched javac version will have ivy download...
View Articlestructure of part-r-00000 and SequenceFile.Reader NullPointerException
I'm doing Canopy clustering with CanopyDriver on a sequence file of NamedVectors and seem to get the expected set of map and reduce directories. But when I try to read the part-r-0000 file with a...
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