Prevent linux from caching write ahead log files
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Key: ACCUMULO-140
URL: https://issues.apache.org/jira/browse/ACCUMULO-140
Project: Accumulo
Issue Type: Improvement
Components: logger
Reporter: Keith Turner
Assignee: Eric Newton
While at ApacheCon I attended a talk about Cassandra. The developer mentioned
using posix_fadvise to prevent linux from storing edit/write ahead log data in
the page cache. This sounds great. Accumulo can do this for its write ahead
logs.
Using posix_fadvise was also mentioned for compactions, this is something
Accumulo can not do because its compactions read and write to hdfs.
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