[PDF] Top 20 Advanced Liferay Architecture: Clustering and High Availability

... 4. Lucene - This needs to be centralized. This can be done a) via JDBC (can work, but there may be issues with speed and table locks); b) swapped out for something like SOLR (runs as a webapp in Tomcat); or c) a ... See full document

... After some time operating the cluster, performance of the system may decrease. This happens usually either by growing amounts of users the system must support, or use of new features, for example by adding optional ... See full document

... The High Availability Add-On cluster infrastructure provides the basic functions for a group of computers (called nodes or members) to work together as a ...your clustering needs (for example, ... See full document

... F u n c ti o n WAS delivers: High availability Clustering J2EE 1.4 Web Services Security Messaging WAS delivers: High availability Clustering J2EE 1.4 Web Services Security M[r] ... See full document

... rror each other luster. Once set tering software can then send constant heartbeats between mirrors. Application-aware clustering agents can monitor application services running on each virtual or physical machine. ... See full document

... strict High Availability (HA) and Disaster Recovery (DR) requirements of an Enterprise Architecture as well as the current maturity of clustering, replication, and HA/DR technologies, OTS is ... See full document

... A very common approach to achieving HA is to use failover solutions that are provided at the operating system level. Examples of such solutions exist on all platforms and include Microsoft Windows Clusters, HP ... See full document

... The AHA architecture uses the same transfer process for preventive maintenance and recovery from actual disasters. This approach eliminates the need for a yearly disaster recovery test, and creates a practiced ... See full document

... The Linux Foundation’s training program combines the broad, foundational knowledge with the networking opportunities that attendees need to thrive in their careers today. We have helped hundreds of companies move to ... See full document

... High Availability framework is a comprehensive system developed for reducing the overhead involved in ATCA chassis validation for high availability software ...framework architecture ... See full document

... In high-income settings, electronic fetal monitoring, prenatal and intrapartum ultrasound, obstetric facilities with availability for immediate operative delivery and advanced neonatal care all help ... See full document

... To satisfy 8,000 users needing 1GB of mailbox capacity and an I/O profile of 0.12 IOPS, this reference architecture uses a RAID-1+0 (2D+2D) configuration of 2TB SAS drives. RAID 1+0 is primarily used for overall ... See full document

... always atomic. Cassandra's best feature is tunable consistency levels which lets user specify consistency level based on the requirements. A higher consistency level means that more nodes need to respond to the query, ... See full document

... Therefore, the dynamic calculation of reliability, availability and clustering them based on calculated values will be examined, so that the reliability and availability of users data[r] ... See full document

... recovery, high availability, backup and recovery, business continuity, call it what you will, the aim is the same: keep the business up and running no matter what the ... See full document

... implement high speed application specific ...demonstrated high performance in terms of several criteria, such as, high clock rate, short input/output delay, small silicon area, and low power ...using ... See full document

... a number of useful, optional services, such as a logging service, a HTTP service and a Device Access architecture. The framework and the service denitions together form the foundation of a platform for building ... See full document

... software architecture, one of them is clustering technique, which source the same component from ...the clustering method is called as clustering ...the clustering technique for speedy ... See full document

... Tomcat clustering plays a role. By implementing a solid clustering design you protect your company from systems ...is clustering and why you should cluster your Tomcat application ...for ... See full document

... the high-level architecture design the system is developed and ...Once high performance enhancements are made with the higher hierarchies, the next level increase in performance becomes increasingly ... See full document