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Posted to yarn-dev@hadoop.apache.org by "Tsuyoshi Ozawa (JIRA)" <ji...@apache.org> on 2015/06/22 14:29:01 UTC
[jira] [Created] (YARN-3841) [Storage abstraction] Create HDFS
backing storage implementation for ATS writes
Tsuyoshi Ozawa created YARN-3841:
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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}
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