I tried setting up an Apache Storm Cluster, using Apache Storm 1.0.2 and Zookeeper 3.4.9. Everything worked fine, but I realized that Apache Samoa - What I'm going to use the Cluster for - is only compatible with versions of Apache Storm <1.0.0.
Thus, I downgraded all of the Apache Storm nodes to Apache Storm 0.9.4, but none of the nodes could connect to the Zookeeper. Is Apache Storm 0.9.4 only compatible with older versions of Zookeeper? If so, does anybody know what version of Zookeeper I should use?
I'm extremely new to this so forgive me for any incorrect terminology, etc, I use.
Thanks for all your help!
I figured out the issue regarding my connection issues (It's unrelated to the main question). But, I can confirm that Apache Storm 0.9.4 is compatible with Zookeeper 3.4.9.
Related
Question: I thought Weblogic and GlassFish / Payara are completely different servers and do not share any common code/component. How come I reached a Weblogic CVE when using Payara?
Configuration: Both our development and production systems are under Payara:
Payara 4.1.1.171.1 Full edition
Oracle Java 1.8.0_144
CentOS 7
Symptoms:
we have illegal connection to url /wls-wsat/CoordinatorPortType11 and wls-wsat/ParticipantPortType, under Anonymous authentication despite having Apache Shiro as security system.
we have an unknown Pyhton program running in our Production. Nothing found in Development so far
Payara Development has shutdown once and one deployment failed ending having Payara stopped (start-domain was required). Payara Production has shutdown once. All of it for unknown reason, especially there were at most one or two users doing nothing special at the shutdown moments
What I can (not) do:
After seeing this and reading this, I think the problems is solved for WebLogic systems but I don't know the mapping GlassFish version <-> Weblogic version, if it exists
Unless I missed a big stuff, I haven't found anything related CVE-2017-10271 and Payara.
We are planning to upgrade to Payara 4.1.2.174 shortly but I have no guarantee it will fix this issue.
I'm trying to check how Shiro can block such connection
I'm asking this question to make sure that there is (or not) no relationship between WebLogic and GlassFish/Payara before opening an issue on Payara GitHub. I unsuccessfully tried to run the python script, I don't know Python :(
Does any one have any good tutorials of Apache Ignite.There seems to be very few practical tutorials or articles of Apache Ignite.
Have you seen Getting Started on readme.io?
Please indicate what you are missing from there.
I am using Kafka Version 0.10.2.0. Is there a way to secure communication between Zookeper Client i.e ZkClient and zookeper server with SSL. I found some way to do through SASL but i want it through SSL.
Zookeeper 3.5 includes SSL support but it is still in alpha so Kafka doesn't yet support it. The highest supported version is 3.4 which only includes sasl.
Ref: https://issues.apache.org/jira/browse/ZOOKEEPER-1000
This task can still be achieved by a simple workaround mentioned in the steps below;
Install zookeeper-3.5.1-alpha (to use the .jar files. version 3.5+ can be used)
Replace default zookeeper*.jar with /zookeeper-3.5.1-alpha/zookeeper-3.5.1-alpha.jar in <kafka-installation-folder>\libs
Copy /zookeeper-3.5.1-alpha/lib/netty-3.7.0.Final.jar into <kafka-installation-folder>\libs
Relevant changes to enable SSL on Zookeeper (https://cwiki-test.apache.org/confluence/display/ZOOKEEPER/ZooKeeper+SSL+User+Guide)
I just started evaluating Redis. I am using Redis 2.8.19 which the most latest stable release. Redis 2.9 is still unstable and Redis 3.0 is just available for developer's preview (not recommended for production). I was tryin to setus a cluster of Redis and when I changed my redis.conf and appended
cluster-enabled yes
cluster-config-file nodes.conf
cluster-node-timeout 5000
and started my Redis server by
src/redis-server ./redis.conf
it gave me an error as follows
* FATAL CONFIG FILE ERROR *
Reading the configuration file, at line 2
'cluster-enabled yes'
Bad directive or wrong number of arguments
I googled the error and got to know that my version (2.8.19) does not support cluster. I was still unable to fine any such specification in Redis Docs. My question is simple. Does Redis 2.8.19 supports redis cluster configuration? Or I have to upgrade to Redis 2.9 or Redis 3.0. I am evaluating Redis because I need to deploy it in production. Please guide.
Redis Cluster support is only for versions >= 3.0.0. Redis 3.0.0 will be released as a stable version in a matter of days, it's a good idea to use it if you want to use Cluster. The cluster support is considered to be stable, however for it to be considered mature we want to see adoption. Btw there is already at least a very large site using it in production. Currently the most sane thing to do if you need Redis Cluster is to test it for your use case, and if it looks great, use it.
Redis cluster is supported only in Redis 3.0+ (which is now stable). I have written a simple API called "Simple Redis Cluster Client" which can be used in redis's sub 3.0 versions for running in a cluster like mode (Not precisely a cluster, it just distributes keys among redis nodes based on the key's hashcode, You can have a look # https://github.com/prash-mi/simple-redis-cluster-client
Cluster support for Redis is only from v3 - v2.8.19 doesn't do clustering.
I have been tasked with integrating ActiveMQ with Weblogic (v 10.3.6.0).
I have downloaded ActiveMQ v 5.10.0, installed it upon the server and browsed to localhost:8161/admin in order to confirm that ActiveMQ is running.
I'm not sure how to progress from here in order to complete my goal. This link:
http://activemq.apache.org/weblogic-integration.html
.. suggests that there are two approaches to deploying ActiveMQ on Weblogic: either deploying a broker as an application or using a J2EE Connector. I'm investigating the latter approach as I have now installed ActiveMQ on the server (which means that I already have a running broker, I assume) but can't find much useful information on the Net about how to do this.
This page:
http://activemq.apache.org/resource-adapter.html
... suggests that it can be done via a JCA Resource Adapter but again does not give any details on how to do it.
If anyone has any advice or guidance, I'd appreciate it.
Thanks in advance.
Did you try this: http://activemq.apache.org/how-to-deploy-activemq-ra-versionrar-to-weblogic.html?
You will have to grab the resource adapter from maven.
Not that your local installation will help you much expect for testing etc. You should deploy AMQ inside WebLogic if you want it to serve as the JMS layer of WebLogic - otherwise a totally standalone installation is fine. But then you're done, and I suspect you want the deployed version non the less.