optionally monitor swappiness on every server
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Key: ACCUMULO-49
URL: https://issues.apache.org/jira/browse/ACCUMULO-49
Project: Accumulo
Issue Type: New Feature
Components: logger, master, trace, tserver
Environment: idle tablet server is swapped out on an otherwise busy
system
Reporter: Eric Newton
Assignee: Eric Newton
Priority: Minor
Linux kernel will eagerly swap idle memory (such as the tablet server) for disk
cache unless the /proc/sys/vm/swappiness setting is set to 0. A swapped-out
server is sluggish enough that it loses its zookeeper lock.
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