The real Riak developers have suggested this might be your problem with stats 
being stuck:

https://github.com/basho/riak_core/pull/467

The fix is included in the upcoming 1.4.4 maintenance release (which is overdue 
so I am not going to bother guessing when it will actually arrive).

Matthew

On Dec 11, 2013, at 2:47 PM, Simon Effenberg <seffenb...@team.mobile.de> wrote:

> I will do..
> 
> but one other thing:
> 
> watch Every 10.0s: sudo riak-admin status | grep put_fsm
> node_put_fsm_time_mean : 2208050
> node_put_fsm_time_median : 39231
> node_put_fsm_time_95 : 17400382
> node_put_fsm_time_99 : 50965752
> node_put_fsm_time_100 : 59537762
> node_put_fsm_active : 5
> node_put_fsm_active_60s : 364
> node_put_fsm_in_rate : 5
> node_put_fsm_out_rate : 3
> node_put_fsm_rejected : 0
> node_put_fsm_rejected_60s : 0
> node_put_fsm_rejected_total : 0
> 
> this is not changing at all.. so maybe my expectations are _wrong_?! So
> I will start searching around if there is a "status" bug or I'm
> looking in the wrong place... maybe there is no problem while searching
> for one?! But I see that at least the app has some issues on GET and
> PUT (more on PUT).. so I would like to know how fast the things are..
> but "status" isn't working.. aaaaargh...
> 
> Cheers
> Simon
> 
> 
> On Wed, 11 Dec 2013 14:32:07 -0500
> Matthew Von-Maszewski <matth...@basho.com> wrote:
> 
>> An additional thought:  if increasing max_open_files does NOT help, try 
>> removing +S 4:4 from the vm.args.  Typically +S setting helps leveldb, but 
>> one other user mentioned that the new sorted 2i queries needed more CPU in 
>> the Erlang layer.
>> 
>> Summary:
>> - try increasing max_open_files to 170
>>  - helps:  try setting sst_block_size to 32768 in app.config
>>  - does not help:  try removing +S from vm.args
>> 
>> Matthew
>> 
>> On Dec 11, 2013, at 1:58 PM, Simon Effenberg <seffenb...@team.mobile.de> 
>> wrote:
>> 
>>> Hi Matthew,
>>> 
>>> On Wed, 11 Dec 2013 18:38:49 +0100
>>> Matthew Von-Maszewski <matth...@basho.com> wrote:
>>> 
>>>> Simon,
>>>> 
>>>> I have plugged your various values into the attached spreadsheet.  I 
>>>> assumed a vnode count to allow for one of your twelve servers to die (256 
>>>> ring size / 11 servers).
>>> 
>>> Great, thanks!
>>> 
>>>> 
>>>> The spreadsheet suggests you can safely raise your max_open_files from 100 
>>>> to 170.  I would suggest doing this for the next server you upgrade.  If 
>>>> part of your problem is file cache thrashing, you should see an 
>>>> improvement.
>>> 
>>> I will try this out.. starting the next server in 3-4 hours.
>>> 
>>>> 
>>>> Only if max_open_files helps, you should then consider adding 
>>>> {sst_block_size, 32767} to the eleveldb portion of app.config.  This 
>>>> setting, given your value sizes, would likely half the size of the 
>>>> metadata held in the file cache.  It only impacts the files newly 
>>>> compacted in the upgrade, and would gradually increase space in the file 
>>>> cache while slowing down the file cache thrashing.
>>> 
>>> So I'll do this at the over-next server if the next server is fine.
>>> 
>>>> 
>>>> What build/packaging of Riak do you use, or do you build from source?
>>> 
>>> Using the debian packages from the basho site..
>>> 
>>> I'm really wondering why the "put" performance is that bad.
>>> Here are the changes which were introduced/changed only on the new
>>> upgraded servers:
>>> 
>>> 
>>> +        fsm_limit                 => 50000,
>>> --- our '+P' is set to 262144 so more than 3x fsm_limit which was
>>> --- stated somewhere
>>> +        # after finishing the upgrade this should be switched to v1 !!!
>>> +        object_format             => '__atom_v0',
>>> 
>>> -      '-env ERL_MAX_ETS_TABLES' => 8192,
>>> +      '-env ERL_MAX_ETS_TABLES'  => 256000, # old package used 8192
>>> but 1.4.2 raised it to this high number
>>> +      '-env ERL_MAX_PORTS'       => 64000,
>>> +      # Treat error_logger warnings as warnings
>>> +      '+W'                       => 'w',
>>> +      # Tweak GC to run more often
>>> +      '-env ERL_FULLSWEEP_AFTER' => 0,
>>> +      # Force the erlang VM to use SMP
>>> +      '-smp'                     => 'enable',
>>> +      #################################
>>> 
>>> Cheers
>>> Simon
>>> 
>>> 
>>>> 
>>>> Matthew
>>>> 
>>>> 
>>>> 
>>>> On Dec 11, 2013, at 9:48 AM, Simon Effenberg <seffenb...@team.mobile.de> 
>>>> wrote:
>>>> 
>>>>> Hi Matthew,
>>>>> 
>>>>> thanks for all your time and work.. see inline for answers..
>>>>> 
>>>>> On Wed, 11 Dec 2013 09:17:32 -0500
>>>>> Matthew Von-Maszewski <matth...@basho.com> wrote:
>>>>> 
>>>>>> The real Riak developers have arrived on-line for the day.  They are 
>>>>>> telling me that all of your problems are likely due to the extended 
>>>>>> upgrade times, and yes there is a known issue with handoff between 1.3 
>>>>>> and 1.4.  They also say everything should calm down after all nodes are 
>>>>>> upgraded.
>>>>>> 
>>>>>> I will review your system settings now and see if there is something 
>>>>>> that might make the other machines upgrade quicker.  So three more 
>>>>>> questions:
>>>>>> 
>>>>>> - what is the average size of your keys
>>>>> 
>>>>> bucket names are between 5 and 15 characters (only ~ 10 buckets)..
>>>>> key names are normally something like 26iesj:hovh7egz
>>>>> 
>>>>>> 
>>>>>> - what is the average size of your value (data stored)
>>>>> 
>>>>> I have to guess.. but mean is (from Riak) 12kb but 95th percentile is
>>>>> at 75kb and in theory we have a limit of 1MB (then it will be split up)
>>>>> but sometimes thanks to sibblings (we have to buckets with allow_mult)
>>>>> we have also some 7MB in MAX but this will be reduced again (it's a new
>>>>> feature in our app which has to many parallel wrights below of 15ms).
>>>>> 
>>>>>> 
>>>>>> - in regular use, are your keys accessed randomly across their entire 
>>>>>> range, or do they contain a date component which clusters older, less 
>>>>>> used keys
>>>>> 
>>>>> normally we don't search but retrieve keys by key name.. and we have
>>>>> data which is up to 6 months old and normally we access mostly
>>>>> new/active/hot data and not all the old ones.. besides this we have a
>>>>> job doing a 2i query every 5mins and another one doing this maybe once
>>>>> an hour.. both don't work while the upgrade is ongoing (2i isn't
>>>>> working).
>>>>> 
>>>>> Cheers
>>>>> Simon
>>>>> 
>>>>>> 
>>>>>> Matthew
>>>>>> 
>>>>>> 
>>>>>> On Dec 11, 2013, at 8:43 AM, Simon Effenberg <seffenb...@team.mobile.de> 
>>>>>> wrote:
>>>>>> 
>>>>>>> Oh and at the moment they are waiting for some handoffs and I see
>>>>>>> errors in logfiles:
>>>>>>> 
>>>>>>> 
>>>>>>> 2013-12-11 13:41:47.948 UTC [error]
>>>>>>> <0.7157.24>@riak_core_handoff_sender:start_fold:269 hinted_handoff
>>>>>>> transfer of riak_kv_vnode from 'riak@10.46.109.202'
>>>>>>> 468137243207554840987117797979434404733540892672
>>>>>>> 
>>>>>>> but I remember that somebody else had this as well and if I recall
>>>>>>> correctly it disappeared after the full upgrade was done.. but at the
>>>>>>> moment it's hard to think about upgrading everything at once..
>>>>>>> (~12hours 100% disk utilization on all 12 nodes will lead to real slow
>>>>>>> puts/gets)
>>>>>>> 
>>>>>>> What can I do?
>>>>>>> 
>>>>>>> Cheers
>>>>>>> Simon
>>>>>>> 
>>>>>>> PS: transfers output:
>>>>>>> 
>>>>>>> 'riak@10.46.109.202' waiting to handoff 17 partitions
>>>>>>> 'riak@10.46.109.201' waiting to handoff 19 partitions
>>>>>>> 
>>>>>>> (these are the 1.4.2 nodes)
>>>>>>> 
>>>>>>> 
>>>>>>> On Wed, 11 Dec 2013 14:39:58 +0100
>>>>>>> Simon Effenberg <seffenb...@team.mobile.de> wrote:
>>>>>>> 
>>>>>>>> Also some side notes:
>>>>>>>> 
>>>>>>>> "top" is even better on new 1.4.2 than on 1.3.1 machines.. IO
>>>>>>>> utilization of disk is mostly the same (round about 33%)..
>>>>>>>> 
>>>>>>>> but
>>>>>>>> 
>>>>>>>> 95th percentile of response time for get (avg over all nodes):
>>>>>>>> before upgrade: 29ms
>>>>>>>> after upgrade: almost the same
>>>>>>>> 
>>>>>>>> 95th percentile of response time for put (avg over all nodes):
>>>>>>>> before upgrade: 60ms
>>>>>>>> after upgrade: 1548ms
>>>>>>>> but this is only because of 2 of 12 nodes are
>>>>>>>> on 1.4.2 and are really slow (17000ms)
>>>>>>>> 
>>>>>>>> Cheers,
>>>>>>>> Simon
>>>>>>>> 
>>>>>>>> On Wed, 11 Dec 2013 13:45:56 +0100
>>>>>>>> Simon Effenberg <seffenb...@team.mobile.de> wrote:
>>>>>>>> 
>>>>>>>>> Sorry I forgot the half of it..
>>>>>>>>> 
>>>>>>>>> seffenberg@kriak46-1:~$ free -m
>>>>>>>>>          total       used       free     shared    buffers cached
>>>>>>>>> Mem:         23999      23759        239          0        184      
>>>>>>>>> 16183
>>>>>>>>> -/+ buffers/cache:       7391      16607
>>>>>>>>> Swap:            0          0          0
>>>>>>>>> 
>>>>>>>>> We have 12 servers..
>>>>>>>>> datadir on the compacted servers (1.4.2) ~ 765 GB
>>>>>>>>> 
>>>>>>>>> AAE is enabled.
>>>>>>>>> 
>>>>>>>>> I attached app.config and vm.args.
>>>>>>>>> 
>>>>>>>>> Cheers
>>>>>>>>> Simon
>>>>>>>>> 
>>>>>>>>> On Wed, 11 Dec 2013 07:33:31 -0500
>>>>>>>>> Matthew Von-Maszewski <matth...@basho.com> wrote:
>>>>>>>>> 
>>>>>>>>>> Ok, I am now suspecting that your servers are either using swap 
>>>>>>>>>> space (which is slow) or your leveldb file cache is thrashing 
>>>>>>>>>> (opening and closing multiple files per request).
>>>>>>>>>> 
>>>>>>>>>> How many servers do you have and do you use Riak's active 
>>>>>>>>>> anti-entropy feature?  I am going to plug all of this into a 
>>>>>>>>>> spreadsheet.
>>>>>>>>>> 
>>>>>>>>>> Matthew Von-Maszewski
>>>>>>>>>> 
>>>>>>>>>> 
>>>>>>>>>> On Dec 11, 2013, at 7:09, Simon Effenberg 
>>>>>>>>>> <seffenb...@team.mobile.de> wrote:
>>>>>>>>>> 
>>>>>>>>>>> Hi Matthew
>>>>>>>>>>> 
>>>>>>>>>>> Memory: 23999 MB
>>>>>>>>>>> 
>>>>>>>>>>> ring_creation_size, 256
>>>>>>>>>>> max_open_files, 100
>>>>>>>>>>> 
>>>>>>>>>>> riak-admin status:
>>>>>>>>>>> 
>>>>>>>>>>> memory_total : 276001360
>>>>>>>>>>> memory_processes : 191506322
>>>>>>>>>>> memory_processes_used : 191439568
>>>>>>>>>>> memory_system : 84495038
>>>>>>>>>>> memory_atom : 686993
>>>>>>>>>>> memory_atom_used : 686560
>>>>>>>>>>> memory_binary : 21965352
>>>>>>>>>>> memory_code : 11332732
>>>>>>>>>>> memory_ets : 10823528
>>>>>>>>>>> 
>>>>>>>>>>> Thanks for looking!
>>>>>>>>>>> 
>>>>>>>>>>> Cheers
>>>>>>>>>>> Simon
>>>>>>>>>>> 
>>>>>>>>>>> 
>>>>>>>>>>> 
>>>>>>>>>>> On Wed, 11 Dec 2013 06:44:42 -0500
>>>>>>>>>>> Matthew Von-Maszewski <matth...@basho.com> wrote:
>>>>>>>>>>> 
>>>>>>>>>>>> I need to ask other developers as they arrive for the new day.  
>>>>>>>>>>>> Does not make sense to me.
>>>>>>>>>>>> 
>>>>>>>>>>>> How many nodes do you have?  How much RAM do you have in each 
>>>>>>>>>>>> node?  What are your settings for max_open_files and cache_size in 
>>>>>>>>>>>> the app.config file?  Maybe this is as simple as leveldb using too 
>>>>>>>>>>>> much RAM in 1.4.  The memory accounting for maz_open_files changed 
>>>>>>>>>>>> in 1.4.
>>>>>>>>>>>> 
>>>>>>>>>>>> Matthew Von-Maszewski
>>>>>>>>>>>> 
>>>>>>>>>>>> 
>>>>>>>>>>>> On Dec 11, 2013, at 6:28, Simon Effenberg 
>>>>>>>>>>>> <seffenb...@team.mobile.de> wrote:
>>>>>>>>>>>> 
>>>>>>>>>>>>> Hi Matthew,
>>>>>>>>>>>>> 
>>>>>>>>>>>>> it took around 11hours for the first node to finish the 
>>>>>>>>>>>>> compaction. The
>>>>>>>>>>>>> second node is running already 12 hours and is still doing 
>>>>>>>>>>>>> compaction.
>>>>>>>>>>>>> 
>>>>>>>>>>>>> Besides that I wonder because the fsm_put time on the new 1.4.2 
>>>>>>>>>>>>> host is
>>>>>>>>>>>>> much higher (after the compaction) than on an old 1.3.1 (both are
>>>>>>>>>>>>> running in the cluster right now and another one is doing the
>>>>>>>>>>>>> compaction/upgrade while it is in the cluster but not directly
>>>>>>>>>>>>> accessible because it is out of the Loadbalancer):
>>>>>>>>>>>>> 
>>>>>>>>>>>>> 1.4.2:
>>>>>>>>>>>>> 
>>>>>>>>>>>>> node_put_fsm_time_mean : 2208050
>>>>>>>>>>>>> node_put_fsm_time_median : 39231
>>>>>>>>>>>>> node_put_fsm_time_95 : 17400382
>>>>>>>>>>>>> node_put_fsm_time_99 : 50965752
>>>>>>>>>>>>> node_put_fsm_time_100 : 59537762
>>>>>>>>>>>>> node_put_fsm_active : 5
>>>>>>>>>>>>> node_put_fsm_active_60s : 364
>>>>>>>>>>>>> node_put_fsm_in_rate : 5
>>>>>>>>>>>>> node_put_fsm_out_rate : 3
>>>>>>>>>>>>> node_put_fsm_rejected : 0
>>>>>>>>>>>>> node_put_fsm_rejected_60s : 0
>>>>>>>>>>>>> node_put_fsm_rejected_total : 0
>>>>>>>>>>>>> 
>>>>>>>>>>>>> 
>>>>>>>>>>>>> 1.3.1:
>>>>>>>>>>>>> 
>>>>>>>>>>>>> node_put_fsm_time_mean : 5036
>>>>>>>>>>>>> node_put_fsm_time_median : 1614
>>>>>>>>>>>>> node_put_fsm_time_95 : 8789
>>>>>>>>>>>>> node_put_fsm_time_99 : 38258
>>>>>>>>>>>>> node_put_fsm_time_100 : 384372
>>>>>>>>>>>>> 
>>>>>>>>>>>>> 
>>>>>>>>>>>>> any clue why this could/should be?
>>>>>>>>>>>>> 
>>>>>>>>>>>>> Cheers
>>>>>>>>>>>>> Simon
>>>>>>>>>>>>> 
>>>>>>>>>>>>> On Tue, 10 Dec 2013 17:21:07 +0100
>>>>>>>>>>>>> Simon Effenberg <seffenb...@team.mobile.de> wrote:
>>>>>>>>>>>>> 
>>>>>>>>>>>>>> Hi Matthew,
>>>>>>>>>>>>>> 
>>>>>>>>>>>>>> thanks!.. that answers my questions!
>>>>>>>>>>>>>> 
>>>>>>>>>>>>>> Cheers
>>>>>>>>>>>>>> Simon
>>>>>>>>>>>>>> 
>>>>>>>>>>>>>> On Tue, 10 Dec 2013 11:08:32 -0500
>>>>>>>>>>>>>> Matthew Von-Maszewski <matth...@basho.com> wrote:
>>>>>>>>>>>>>> 
>>>>>>>>>>>>>>> 2i is not my expertise, so I had to discuss you concerns with 
>>>>>>>>>>>>>>> another Basho developer.  He says:
>>>>>>>>>>>>>>> 
>>>>>>>>>>>>>>> Between 1.3 and 1.4, the 2i query did change but not the 2i 
>>>>>>>>>>>>>>> on-disk format.  You must wait for all nodes to update if you 
>>>>>>>>>>>>>>> desire to use the new 2i query.  The 2i data will properly 
>>>>>>>>>>>>>>> write/update on both 1.3 and 1.4 machines during the migration.
>>>>>>>>>>>>>>> 
>>>>>>>>>>>>>>> Does that answer your question?
>>>>>>>>>>>>>>> 
>>>>>>>>>>>>>>> 
>>>>>>>>>>>>>>> And yes, you might see available disk space increase during the 
>>>>>>>>>>>>>>> upgrade compactions if your dataset contains numerous delete 
>>>>>>>>>>>>>>> "tombstones".  The Riak 2.0 code includes a new feature called 
>>>>>>>>>>>>>>> "aggressive delete" for leveldb.  This feature is more 
>>>>>>>>>>>>>>> proactive in pushing delete tombstones through the levels to 
>>>>>>>>>>>>>>> free up disk space much more quickly (especially if you perform 
>>>>>>>>>>>>>>> block deletes every now and then).
>>>>>>>>>>>>>>> 
>>>>>>>>>>>>>>> Matthew
>>>>>>>>>>>>>>> 
>>>>>>>>>>>>>>> 
>>>>>>>>>>>>>>> On Dec 10, 2013, at 10:44 AM, Simon Effenberg 
>>>>>>>>>>>>>>> <seffenb...@team.mobile.de> wrote:
>>>>>>>>>>>>>>> 
>>>>>>>>>>>>>>>> Hi Matthew,
>>>>>>>>>>>>>>>> 
>>>>>>>>>>>>>>>> see inline..
>>>>>>>>>>>>>>>> 
>>>>>>>>>>>>>>>> On Tue, 10 Dec 2013 10:38:03 -0500
>>>>>>>>>>>>>>>> Matthew Von-Maszewski <matth...@basho.com> wrote:
>>>>>>>>>>>>>>>> 
>>>>>>>>>>>>>>>>> The sad truth is that you are not the first to see this 
>>>>>>>>>>>>>>>>> problem.  And yes, it has to do with your 950GB per node 
>>>>>>>>>>>>>>>>> dataset.  And no, nothing to do but sit through it at this 
>>>>>>>>>>>>>>>>> time.
>>>>>>>>>>>>>>>>> 
>>>>>>>>>>>>>>>>> While I did extensive testing around upgrade times before 
>>>>>>>>>>>>>>>>> shipping 1.4, apparently there are data configurations I did 
>>>>>>>>>>>>>>>>> not anticipate.  You are likely seeing a cascade where a 
>>>>>>>>>>>>>>>>> shift of one file from level-1 to level-2 is causing a shift 
>>>>>>>>>>>>>>>>> of another file from level-2 to level-3, which causes a 
>>>>>>>>>>>>>>>>> level-3 file to shift to level-4, etc … then the next file 
>>>>>>>>>>>>>>>>> shifts from level-1.
>>>>>>>>>>>>>>>>> 
>>>>>>>>>>>>>>>>> The bright side of this pain is that you will end up with 
>>>>>>>>>>>>>>>>> better write throughput once all the compaction ends.
>>>>>>>>>>>>>>>> 
>>>>>>>>>>>>>>>> I have to deal with that.. but my problem is now, if I'm doing 
>>>>>>>>>>>>>>>> this
>>>>>>>>>>>>>>>> node by node it looks like 2i searches aren't possible while 
>>>>>>>>>>>>>>>> 1.3 and
>>>>>>>>>>>>>>>> 1.4 nodes exists in the cluster. Is there any problem which 
>>>>>>>>>>>>>>>> leads me to
>>>>>>>>>>>>>>>> an 2i repair marathon or could I easily wait for some hours 
>>>>>>>>>>>>>>>> for each
>>>>>>>>>>>>>>>> node until all merges are done before I upgrade the next one? 
>>>>>>>>>>>>>>>> (2i
>>>>>>>>>>>>>>>> searches can fail for some time.. the APP isn't having 
>>>>>>>>>>>>>>>> problems with
>>>>>>>>>>>>>>>> that but are new inserts with 2i indices processed 
>>>>>>>>>>>>>>>> successfully or do
>>>>>>>>>>>>>>>> I have to do the 2i repair?)
>>>>>>>>>>>>>>>> 
>>>>>>>>>>>>>>>> /s
>>>>>>>>>>>>>>>> 
>>>>>>>>>>>>>>>> one other good think: saving disk space is one advantage ;)..
>>>>>>>>>>>>>>>> 
>>>>>>>>>>>>>>>> 
>>>>>>>>>>>>>>>>> 
>>>>>>>>>>>>>>>>> Riak 2.0's leveldb has code to prevent/reduce compaction 
>>>>>>>>>>>>>>>>> cascades, but that is not going to help you today.
>>>>>>>>>>>>>>>>> 
>>>>>>>>>>>>>>>>> Matthew
>>>>>>>>>>>>>>>>> 
>>>>>>>>>>>>>>>>> On Dec 10, 2013, at 10:26 AM, Simon Effenberg 
>>>>>>>>>>>>>>>>> <seffenb...@team.mobile.de> wrote:
>>>>>>>>>>>>>>>>> 
>>>>>>>>>>>>>>>>>> Hi @list,
>>>>>>>>>>>>>>>>>> 
>>>>>>>>>>>>>>>>>> I'm trying to upgrade our Riak cluster from 1.3.1 to 1.4.2 
>>>>>>>>>>>>>>>>>> .. after
>>>>>>>>>>>>>>>>>> upgrading the first node (out of 12) this node seems to do 
>>>>>>>>>>>>>>>>>> many merges.
>>>>>>>>>>>>>>>>>> the sst_* directories changes in size "rapidly" and the node 
>>>>>>>>>>>>>>>>>> is having
>>>>>>>>>>>>>>>>>> a disk utilization of 100% all the time.
>>>>>>>>>>>>>>>>>> 
>>>>>>>>>>>>>>>>>> I know that there is something like that:
>>>>>>>>>>>>>>>>>> 
>>>>>>>>>>>>>>>>>> "The first execution of 1.4.0 leveldb using a 1.3.x or 1.2.x 
>>>>>>>>>>>>>>>>>> dataset
>>>>>>>>>>>>>>>>>> will initiate an automatic conversion that could pause the 
>>>>>>>>>>>>>>>>>> startup of
>>>>>>>>>>>>>>>>>> each node by 3 to 7 minutes. The leveldb data in "level #1" 
>>>>>>>>>>>>>>>>>> is being
>>>>>>>>>>>>>>>>>> adjusted such that "level #1" can operate as an overlapped 
>>>>>>>>>>>>>>>>>> data level
>>>>>>>>>>>>>>>>>> instead of as a sorted data level. The conversion is simply 
>>>>>>>>>>>>>>>>>> the
>>>>>>>>>>>>>>>>>> reduction of the number of files in "level #1" to being less 
>>>>>>>>>>>>>>>>>> than eight
>>>>>>>>>>>>>>>>>> via normal compaction of data from "level #1" into "level 
>>>>>>>>>>>>>>>>>> #2". This is
>>>>>>>>>>>>>>>>>> a one time conversion."
>>>>>>>>>>>>>>>>>> 
>>>>>>>>>>>>>>>>>> but it looks much more invasive than explained here or 
>>>>>>>>>>>>>>>>>> doesn't have to
>>>>>>>>>>>>>>>>>> do anything with the (probably seen) merges.
>>>>>>>>>>>>>>>>>> 
>>>>>>>>>>>>>>>>>> Is this "normal" behavior or could I do anything about it?
>>>>>>>>>>>>>>>>>> 
>>>>>>>>>>>>>>>>>> At the moment I'm stucked with the upgrade procedure because 
>>>>>>>>>>>>>>>>>> this high
>>>>>>>>>>>>>>>>>> IO load would probably lead to high response times.
>>>>>>>>>>>>>>>>>> 
>>>>>>>>>>>>>>>>>> Also we have a lot of data (per node ~950 GB).
>>>>>>>>>>>>>>>>>> 
>>>>>>>>>>>>>>>>>> Cheers
>>>>>>>>>>>>>>>>>> Simon
>>>>>>>>>>>>>>>>>> 
>>>>>>>>>>>>>>>>>> _______________________________________________
>>>>>>>>>>>>>>>>>> riak-users mailing list
>>>>>>>>>>>>>>>>>> riak-users@lists.basho.com
>>>>>>>>>>>>>>>>>> http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com
>>>>>>>>>>>>>>>>> 
>>>>>>>>>>>>>>>> 
>>>>>>>>>>>>>>>> 
>>>>>>>>>>>>>>>> --
>>>>>>>>>>>>>>>> Simon Effenberg | Site Ops Engineer | mobile.international GmbH
>>>>>>>>>>>>>>>> Fon:     + 49-(0)30-8109 - 7173
>>>>>>>>>>>>>>>> Fax:     + 49-(0)30-8109 - 7131
>>>>>>>>>>>>>>>> 
>>>>>>>>>>>>>>>> Mail:     seffenb...@team.mobile.de
>>>>>>>>>>>>>>>> Web:    www.mobile.de
>>>>>>>>>>>>>>>> 
>>>>>>>>>>>>>>>> Marktplatz 1 | 14532 Europarc Dreilinden | Germany
>>>>>>>>>>>>>>>> 
>>>>>>>>>>>>>>>> 
>>>>>>>>>>>>>>>> Geschäftsführer: Malte Krüger
>>>>>>>>>>>>>>>> HRB Nr.: 18517 P, Amtsgericht Potsdam
>>>>>>>>>>>>>>>> Sitz der Gesellschaft: Kleinmachnow
>>>>>>>>>>>>>>> 
>>>>>>>>>>>>>> 
>>>>>>>>>>>>>> 
>>>>>>>>>>>>>> --
>>>>>>>>>>>>>> Simon Effenberg | Site Ops Engineer | mobile.international GmbH
>>>>>>>>>>>>>> Fon:     + 49-(0)30-8109 - 7173
>>>>>>>>>>>>>> Fax:     + 49-(0)30-8109 - 7131
>>>>>>>>>>>>>> 
>>>>>>>>>>>>>> Mail:     seffenb...@team.mobile.de
>>>>>>>>>>>>>> Web:    www.mobile.de
>>>>>>>>>>>>>> 
>>>>>>>>>>>>>> Marktplatz 1 | 14532 Europarc Dreilinden | Germany
>>>>>>>>>>>>>> 
>>>>>>>>>>>>>> 
>>>>>>>>>>>>>> Geschäftsführer: Malte Krüger
>>>>>>>>>>>>>> HRB Nr.: 18517 P, Amtsgericht Potsdam
>>>>>>>>>>>>>> Sitz der Gesellschaft: Kleinmachnow
>>>>>>>>>>>>>> 
>>>>>>>>>>>>>> _______________________________________________
>>>>>>>>>>>>>> riak-users mailing list
>>>>>>>>>>>>>> riak-users@lists.basho.com
>>>>>>>>>>>>>> http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com
>>>>>>>>>>>>> 
>>>>>>>>>>>>> 
>>>>>>>>>>>>> --
>>>>>>>>>>>>> Simon Effenberg | Site Ops Engineer | mobile.international GmbH
>>>>>>>>>>>>> Fon:     + 49-(0)30-8109 - 7173
>>>>>>>>>>>>> Fax:     + 49-(0)30-8109 - 7131
>>>>>>>>>>>>> 
>>>>>>>>>>>>> Mail:     seffenb...@team.mobile.de
>>>>>>>>>>>>> Web:    www.mobile.de
>>>>>>>>>>>>> 
>>>>>>>>>>>>> Marktplatz 1 | 14532 Europarc Dreilinden | Germany
>>>>>>>>>>>>> 
>>>>>>>>>>>>> 
>>>>>>>>>>>>> Geschäftsführer: Malte Krüger
>>>>>>>>>>>>> HRB Nr.: 18517 P, Amtsgericht Potsdam
>>>>>>>>>>>>> Sitz der Gesellschaft: Kleinmachnow
>>>>>>>>>>> 
>>>>>>>>>>> 
>>>>>>>>>>> --
>>>>>>>>>>> Simon Effenberg | Site Ops Engineer | mobile.international GmbH
>>>>>>>>>>> Fon:     + 49-(0)30-8109 - 7173
>>>>>>>>>>> Fax:     + 49-(0)30-8109 - 7131
>>>>>>>>>>> 
>>>>>>>>>>> Mail:     seffenb...@team.mobile.de
>>>>>>>>>>> Web:    www.mobile.de
>>>>>>>>>>> 
>>>>>>>>>>> Marktplatz 1 | 14532 Europarc Dreilinden | Germany
>>>>>>>>>>> 
>>>>>>>>>>> 
>>>>>>>>>>> Geschäftsführer: Malte Krüger
>>>>>>>>>>> HRB Nr.: 18517 P, Amtsgericht Potsdam
>>>>>>>>>>> Sitz der Gesellschaft: Kleinmachnow
>>>>>>>>> 
>>>>>>>>> 
>>>>>>>>> --
>>>>>>>>> Simon Effenberg | Site Ops Engineer | mobile.international GmbH
>>>>>>>>> Fon:     + 49-(0)30-8109 - 7173
>>>>>>>>> Fax:     + 49-(0)30-8109 - 7131
>>>>>>>>> 
>>>>>>>>> Mail:     seffenb...@team.mobile.de
>>>>>>>>> Web:    www.mobile.de
>>>>>>>>> 
>>>>>>>>> Marktplatz 1 | 14532 Europarc Dreilinden | Germany
>>>>>>>>> 
>>>>>>>>> 
>>>>>>>>> Geschäftsführer: Malte Krüger
>>>>>>>>> HRB Nr.: 18517 P, Amtsgericht Potsdam
>>>>>>>>> Sitz der Gesellschaft: Kleinmachnow
>>>>>>>> 
>>>>>>>> 
>>>>>>>> --
>>>>>>>> Simon Effenberg | Site Ops Engineer | mobile.international GmbH
>>>>>>>> Fon:     + 49-(0)30-8109 - 7173
>>>>>>>> Fax:     + 49-(0)30-8109 - 7131
>>>>>>>> 
>>>>>>>> Mail:     seffenb...@team.mobile.de
>>>>>>>> Web:    www.mobile.de
>>>>>>>> 
>>>>>>>> Marktplatz 1 | 14532 Europarc Dreilinden | Germany
>>>>>>>> 
>>>>>>>> 
>>>>>>>> Geschäftsführer: Malte Krüger
>>>>>>>> HRB Nr.: 18517 P, Amtsgericht Potsdam
>>>>>>>> Sitz der Gesellschaft: Kleinmachnow
>>>>>>> 
>>>>>>> 
>>>>>>> --
>>>>>>> Simon Effenberg | Site Ops Engineer | mobile.international GmbH
>>>>>>> Fon:     + 49-(0)30-8109 - 7173
>>>>>>> Fax:     + 49-(0)30-8109 - 7131
>>>>>>> 
>>>>>>> Mail:     seffenb...@team.mobile.de
>>>>>>> Web:    www.mobile.de
>>>>>>> 
>>>>>>> Marktplatz 1 | 14532 Europarc Dreilinden | Germany
>>>>>>> 
>>>>>>> 
>>>>>>> Geschäftsführer: Malte Krüger
>>>>>>> HRB Nr.: 18517 P, Amtsgericht Potsdam
>>>>>>> Sitz der Gesellschaft: Kleinmachnow
>>>>>> 
>>>>> 
>>>>> 
>>>>> --
>>>>> Simon Effenberg | Site Ops Engineer | mobile.international GmbH
>>>>> Fon:     + 49-(0)30-8109 - 7173
>>>>> Fax:     + 49-(0)30-8109 - 7131
>>>>> 
>>>>> Mail:     seffenb...@team.mobile.de
>>>>> Web:    www.mobile.de
>>>>> 
>>>>> Marktplatz 1 | 14532 Europarc Dreilinden | Germany
>>>>> 
>>>>> 
>>>>> Geschäftsführer: Malte Krüger
>>>>> HRB Nr.: 18517 P, Amtsgericht Potsdam
>>>>> Sitz der Gesellschaft: Kleinmachnow
>>>> 
>>> 
>>> 
>>> -- 
>>> Simon Effenberg | Site Ops Engineer | mobile.international GmbH
>>> Fon:     + 49-(0)30-8109 - 7173
>>> Fax:     + 49-(0)30-8109 - 7131
>>> 
>>> Mail:     seffenb...@team.mobile.de
>>> Web:    www.mobile.de
>>> 
>>> Marktplatz 1 | 14532 Europarc Dreilinden | Germany
>>> 
>>> 
>>> Geschäftsführer: Malte Krüger
>>> HRB Nr.: 18517 P, Amtsgericht Potsdam
>>> Sitz der Gesellschaft: Kleinmachnow 
>> 
> 
> 
> -- 
> Simon Effenberg | Site Ops Engineer | mobile.international GmbH
> Fon:     + 49-(0)30-8109 - 7173
> Fax:     + 49-(0)30-8109 - 7131
> 
> Mail:     seffenb...@team.mobile.de
> Web:    www.mobile.de
> 
> Marktplatz 1 | 14532 Europarc Dreilinden | Germany
> 
> 
> Geschäftsführer: Malte Krüger
> HRB Nr.: 18517 P, Amtsgericht Potsdam
> Sitz der Gesellschaft: Kleinmachnow 


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