RE: MpxTestDaemon

Are you using multipathing on your server for storage?

Are you using EMC storage?  

From: oracle-l-bounce_at_freelists.org <oracle-l-bounce_at_freelists.org> On Behalf Of Jared Still Sent: Tuesday, October 20, 2020 3:01 PM
To: Oracle-L Freelists <oracle-l_at_freelists.org> Subject: MpxTestDaemon  

Dear list:  

I am investigating a process 'MpxTestDaemon' on a Linux server (RedHat 6.9 as I recall).  

This server is running Oracle 12.1, and has 1.5T of RAM.  

It is a standalone server, not RAC.  

There are some anomalous things occurring with this process.  

For instance, at times pidstat reports impossible numbers of minflt/s (mem faults not requiring disk access) being performed: approx 1.85 * 10e18  

Right now though all I am asking is this:  

Does anyone know what this process is?  

Neither Oracle nor the Google have anything helpful.  

In Oracle's case, no references at all.  

In the meantime, I shall see if I can find out what it is doing.  

Thanks.  

Jared Still
Certifiable Oracle DBA and Part Time Perl Evangelist

Principal Consultant at Pythian

Oracle ACE Alumni

Pythian Blog http://www.pythian.com/blog/author/still/

Github: https://github.com/jkstill

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