Record a personal experience of the dubbo project
I. Case Description
There are two systems, A system and B system. A system calls the interface of B system to get data for querying user list.
II. Environmental Construction
Install zookeeper and decompress (zookeeper-3.4.8.tar.gz) as follows:
Then enter conf and rename zoo_sample.cfg to zoo.cfg. And related to the following:
This directory ...
Posted by damien@damosworld.com on Sat, 26 Jan 2019 09:21:14 -0800
Build a High Availability (HA) cluster using the Quorum Journal Manager (QJM)
Manual HA
1. If you are creating a brand new HA cluster, please complete this article first. Blog The first 18 steps.
2,modify core-site.xml
<property>
<name>fs.defaultFS</name>
<value>hdfs://mycluster</value>
</property>
<property>
<name>hadoop.tmp.dir</name>
&l ...
Posted by dragongamer on Tue, 22 Jan 2019 19:24:12 -0800
Flume data acquisition preparation
Flume is a highly available, reliable and distributed system for collecting, aggregating and transferring massive logs provided by Cloudera. Flume supports customizing various data senders in the log system for collecting data. At the same time, Flume provides the ability to process data simply and write to various data rec ...
Posted by ron814 on Sat, 19 Jan 2019 07:21:13 -0800
Use and Analysis of [Curator] Persistent Ephemeral Node/Persistent Node
Persistent Ephemeral Node / Persistent Node
A persistent node that can be maintained when a link or session is interrupted.
1. key API
org.apache.curator.framework.recipes.nodes.PersistentEphemeralNode
2. mechanism description
Actually, it's org.apache.curator.framework.recipes.nodes.PersistentNode.
Considering a lot of abnormal situations, it ...
Posted by Reef on Mon, 10 Dec 2018 09:21:05 -0800