Mmapfs for all 64bit OSs?

Hi:

Is there a reason why mmapfs is enabled by default for 64bit Windows and
Solaris only? Just curious before I go do some benchmarking on my 64bit
Linux cluster...

Thanks
Andy O

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+1

In Lucene, it has changed some time ago.

http://svn.apache.org/repos/asf/lucene/dev/trunk/lucene/core/src/java/org/apache/lucene/store/FSDirectory.java

Before that, there were some annoying mmap related bugs in some versions of
Linux JVMs which crashed Lucene. So the Lucene team decided to remove mmap
as default from Linux.

Probably it was forgotten to make this change in ES, too.

Jörg

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Yep, that's what I found out as well (forgot to update my post).
Created Make mmapfs the default store for 64-bit Linux · Issue #4134 · elastic/elasticsearch · GitHub

On Friday, November 8, 2013 4:42:19 PM UTC-6, Jörg Prante wrote:

+1

In Lucene, it has changed some time ago.

http://svn.apache.org/repos/asf/lucene/dev/trunk/lucene/core/src/java/org/apache/lucene/store/FSDirectory.java

Before that, there were some annoying mmap related bugs in some versions
of Linux JVMs which crashed Lucene. So the Lucene team decided to remove
mmap as default from Linux.

Probably it was forgotten to make this change in ES, too.

Jörg

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