Hi guys I am trying to follow the quick start of HBase and start an HBase on the local file system( without using HDFS ) However when I start the shell using ./hbase shell and type "status" I get z...

Per the zookeeper docs, one can create a way to access the a Zookeeper ensemble as a "super" user. The directions for doing that are a little vague, both in terms of configuration and connection me...

Scrapy Clusters is awesome. It can be used to perform huge, continuous crawls using Redis and Kafka. It's really durible but I'm still trying to figure out the finer details of the best logic for m...

Test environment: multi-node mesos 0.27.2 cluster on AWS (3 x masters, 2 x slaves, quorum=2). Tested persistence with zkCli.sh and it works fine. If i start the masters with --registry=in_memory, ...

I've been looking for .NET version of the ZooKeeper client and I found one. https://github.com/ewhauser/zookeeper/tree/trunk/src/dotnet/SharpKeeper/ I was so thrilled and downloaded the source fil...

Tried to run Kafka producer in one machine and consumer in another machine. Set the following properties: advertised.host.name advertised.port But getting the following error on console consumer: ...

State: We are sharing zookeeper with kafka and several different services, which are using zookeeper for coordination. They are nicely operating on zookeeper subcontext. Looks like this: / /servi...

I have a Cassandra cluster and Zookeeper server installed. Now I want to support transactions in cassandra using zookeeper. How do i do that. Zookeeper creates znodes to perform read and write op...

Kafka Producers need a bootstrap list of kafka brokers to work. As per this explanation , it needs this to be able to connect to one of the brokers and then fetch metadata about all live brokers in...

I am picking up knowledge of consensus protocols in a distributed system. Such a distributed system does primary-backup on databases. I learned that "every consensus protocol can loop forever." fr...

I am trying to configure the ensemble of 3 nodes following the documentation. All of them are on Linux Ubuntu. on all the three nodes configuration file looks like this : zoo.cfg under $ZOOKEEPER...

I'm using Apache Spark's spark-shell with mesos and zookeeper, which seems to working well except that I'm getting more logging from zookeeper than I'd like, which is a bit distracting: Welcome to...

I'm playing around with Kafka and using my own local single instance of zookeeper + kafka and running into this error that I don't seem to understand how to resolve. I started a simple server per ...

I have the following setup: 3 kafka brokers and a 3 zookeeper ensamble 1 topic with 12 partitions and 3 replicas (each kafka broker is thus the leader of 4 partitions) I stop one of the brokers - ...

We have a few SolrCloud & ZooKeeper setups running in AWS EC2, and for the most part they're running smoothly, but after a recent failure of one of our ZooKeeper nodes I started wondering if an...

I have setup Kafka on Amazon EC2 instance. I have done the following in below order: (1) SSH into the Instance (2) Start Zookeper (3) Start Kafka (4) Execute Producer and Consumer Programs. Every...

What's the difference between zookeeper vs spring cloud config server? They both store configurations in server and make them available to clients. When should one be used over the other?

When I try to use the Kafka producer and consumer (0.9.0) script to push/pull messages from a topic, I get the errors below. Producer Error [2016-01-13 02:49:40,078] ERROR Error when sending mess...

How do I verify that all the nodes in a zookeeper are part of a quorum and are healthy? Manual talks about "ruok" but that doesnt still say if the zookeeper node is part of quorum and is in sync wi...

I am using kafka 0.8.1.1. I have a 3 node kafka cluster with some topics having around 5 partitions. I planned to increase the number of nodes to 5 in cluster and moving some partitions from existi...

I'm just getting started with Apache Kafka/Zookeeper and have been running into issues trying to set up a cluster on AWS. Currently I have three servers: One running Zookeeper and two running Kafk...

I'm following http://jayatiatblogs.blogspot.com/2011/11/storm-installation.html & http://zookeeper.apache.org/doc/r3.3.3/zookeeperAdmin.html#sc_zkMulitServerSetup to set up Apache Storm cluster...

how do i change the schema.xml for a collection in SolrCloud? I have set up a zookeeper-ensemble on 3 nodes and i guess i could make the changes there, but don't know exactly.

I have read instructions on do not use swap both on zookeeper and kafka. I know that kafka depends on the pagecaching to keep parts of sequential logs cached in-memory even they are written to d...

Without going into excruciating detail, I am having an issue when I run my Junit tests all at once. If I run them class by class, everything is great! Otherwise I have trouble because I cannot rest...