Wow this is a delightful machine: I am jealous!

Do you have any sense of whether the higher IOPs/throughput of NVMe
SSDs vs "mere" SATA III matters for time to run Lucene's/Solr's tests?

Also, how did you parallelize the running of the tests?  Just the
normal top-level "ant test"?  Or one "ant test" under lucene and one
under solr, running at once?

Mike McCandless

http://blog.mikemccandless.com


On Wed, May 27, 2015 at 9:29 AM, Steve Rowe <[email protected]> wrote:
> SSD: http://www.newegg.com/Product/Product.aspx?Item=N82E16820167299
> CPU: http://www.newegg.com/Product/Product.aspx?Item=N82E16819117404
> M/B: http://www.newegg.com/Product/Product.aspx?Item=N82E16813132518
> RAM: http://www.newegg.com/Product/Product.aspx?Item=N82E16820231820
>
> The mem wasn’t listed as supported by the mobo manufacturer, and it isn’t 
> detected at its full speed (2800MHz), so currently running at 2400 
> (“overclocked” from detected 2100 I think).  CPU isn’t overclocked from stock 
> 3GHz, but I got a liquid cooler, thinking I’d experiment (haven’t much yet).  
> Even without overclocking the fans spin faster when all the cores are busy, 
> and it’s quite the little space heater.
>
> I installed Debian 8, but had to fix the installer in a couple places because 
> it didn’t know about the new NVMe device naming scheme:
>
> https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=785147
> https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=785149
>
> I also upgraded to the 4.0 Linux kernel, since Debian 8 ships with the 3.16 
> kernel, and 3.19 contains a bunch of NVMe improvements.
>
> And I turned “swappiness" down to zero (thanks to Mike: 
> <http://blog.mikemccandless.com/2011/04/just-say-no-to-swapping.html>) after 
> seeing a bunch of test stalls while running the Lucene monster tests with 4 
> JVMs (takes about 2 hours, but I can get it down to 90 minutes or so by 
> splitting the two tests in Test2BSortedDocValues out into their own suites - 
> I’ll make an issue).
>
> Steve
>
>> On May 27, 2015, at 5:08 AM, Anshum Gupta <[email protected]> wrote:
>>
>> 8-real-core Haswell-E with 64G DDR4 memory and a NVMe 750-series SSD.
>>
>> Can run *all* of the Lucene and Solr tests in 10 minutes by running multiple 
>> ant jobs in parallel!
>>
>> On Wed, May 27, 2015 at 1:17 AM, Ramkumar R. Aiyengar 
>> <[email protected]> wrote:
>> Curious.. sarowe, what's the spec?
>>
>> On 26 May 2015 20:41, "Anshum Gupta" <[email protected]> wrote:
>> The last buch of fixes seems to have fixed this. The tests passed on a 
>> Jenkins that had failing tests earlier.
>> Thanks Steve Rowe for lending the super-powerful machine that runs the 
>> entire suite in 8 min!
>>
>> I've seen about 20 runs on that box and also runs on Policeman Jenkins with 
>> no issues related to this test since the last commit so I've also 
>> back-ported this to 5x as well.
>>
>> On Tue, May 26, 2015 at 9:19 AM, Chris Hostetter <[email protected]> 
>> wrote:
>>
>> : Right, as I said, we weren't hitting this issue due to our Kerberos conf.
>> : file. i.e. the only thing that was different on our machines as compared to
>> : everyone else and moving that conf file got the tests to fail for me. It
>> : now fails fairly consistently without the patch (from SOLR-7468) and has
>> : been looking good with the patch.
>>
>> that smells like the kind of thing that sould have some "assume sanity
>> checks" built into it.
>>
>> Given:
>> * the test setups a special env before running the test
>> * the test assumes the specific env will exist
>> * the user's machine may already have env properties set before running ant 
>> that affect the expected special env
>>
>> therefore: before the test does the setup of the special env, it should
>> sanity check that the users basic env doesn't have any properties that
>> violate the "basic" situation.
>>
>> so, hypothetical example based on what little i understand the
>> authentication stuff: if the purpose of a test is to prove that some
>> requests work with (or w/o) kerberos authentication, then before doing any
>> setup of a "mock" kerberos env (or before setting up a "mock" situation
>> where no authentication is required), the test should verify that there
>> isn't already an existing kerberos env. (or if possible: "unset" whatever
>> env/properties define that env)
>>
>>
>> trivial example of a similar situation is the script engine tests --
>> TestBadConfigs.testBogusScriptEngine:  the purpose of the test is to
>> ensure that a solrconfig.xml file that refers to a script engine (by
>> name) which is not installed on the machine will produce an expeted error
>> at Solr init.  before doing the Solr init, we have an whitebox assume that
>> asks the JVM directly if a script engine with that name already exists)
>>
>>
>>
>> -Hoss
>> http://www.lucidworks.com/
>>
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>>
>>
>>
>>
>> --
>> Anshum Gupta
>>
>>
>>
>> --
>> Anshum Gupta
>
>
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