Tsuyoshi Ozawa created YARN-3841: ------------------------------------ Summary: [Storage abstraction] Create HDFS backing storage implementation for ATS writes Key: YARN-3841 URL: https://issues.apache.org/jira/browse/YARN-3841 Project: Hadoop YARN Issue Type: Sub-task Components: timelineserver Reporter: Tsuyoshi Ozawa Assignee: Tsuyoshi Ozawa
HDFS backing storage is useful for following scenarios. 1. For Hadoop clusters which don't run HBase. 2. For fallback from HBase when HBase cluster is temporary unavailable. {quote} In the case the HBase storage is not available, the plugin should buffer the writes temporarily (e.g. HDFS), and flush them once the storage comes back online. Reading and writing to hdfs as the the backup storage could potentially use the HDFS writer plugin unless the complexity of generalizing the HDFS writer plugin for this purpose exceeds the benefits of reusing it here. {quote} -- This message was sent by Atlassian JIRA (v6.3.4#6332)