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update migration docs to include removal of `netty.epollBugWorkaround`

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Boaz Leskes 2016-07-14 12:20:35 +02:00 committed by GitHub
parent 1bc12f5214
commit ef33183a19
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docs/reference/migration/migrate_5_0/settings.asciidoc
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@ -66,6 +66,10 @@ pick the first interface not marked as loopback. Instead, specify by address
scope (e.g. `_local_,_site_` for all loopback and private network addresses)
or by explicit interface names, hostnames, or addresses.
The `netty.epollBugWorkaround` settings is removed. This settings allow people to enable
a netty work around for https://github.com/netty/netty/issues/327[a high CPU usage issue] with early JVM versions.
This bug was http://bugs.java.com/view_bug.do?bug_id=6403933[fixed in Java 7]. Since Elasticsearch 5.0 requires Java 8 the settings is removed. Note that if the workaround needs to be reintroduced you can still set the `org.jboss.netty.epollBugWorkaround` system property to control Netty directly.
==== Forbid changing of thread pool types
Previously, <<modules-threadpool,thread pool types>> could be dynamically