Apache UIMA DUCC v2.1.0發布,分布式 UIMA 集群計算服務
UIMA (Unstructured Information Management applications) 是一個軟件系統,用來分析大量的非結構化信息從而發掘中對最終用戶有用的知識點,一個最典型的 UIM 應用就是從文本文件中提取有用信息,例如人員、地址和組織等相關信息。 DUCC 是為分布式 UIMA 集群計算服務的,是集群管理系統,提供工具鏈,管理和調度設施。
更新日志
完整日志:here
此版本中的主要變化是:
- Ubuntu and RHEL 7 support
- cgroup enhancements
- uses standard cgroups organization
- supports cgroup swappiness setting, restricting any swapping if desired
- DUCC state and history storage moved from flat files to Cassandra DB, reducing storage size 5x
- Ships with the latest UIMA-AS v2.8.1
- Ships with recent ActiveMQ v5.13.2
- DUCC's UIMA-AS services support failover and ssl connectors
- Many DUCC webpage improvements
- Clear user display of DUCC classes and relation to machines
- Robust handling of dynamic changes to DUCC class and nodepool definitions
- Full support of nodepools with different quantum
- DUCC broker access restricted to user ducc
- Eliminate need for user home directories located on a shared filesystem
- Built-in Job error handler programmable per job
- Migration utility for DUCC updates
- Change to vary-off behavior to facilitate cluster management
- Horizontal stacking of services instance allocations
- java-viaducc improvements including separation of stdout from stderr respoonses
- An alert banner is displayed on ducc-mon pages if daemons are down
- Promoted DUCC from sandbox to the regular Apache project in the SVN
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