Hi John,
We are working on suggestion what you guys provided, we will send our
report shortly
Best
Dao
On Fri, Feb 10, 2017 at 11:26 AM, John Daily <jda...@basho.com> wrote:
> I would like to see the results of experimenting with pr and pw as per my
> earlier message in case there is a genuine bug lurking somewhere, but yes,
> running inside a single network will make Riak much happier.
>
> -John
>
> On Feb 9, 2017, at 9:01 PM, Nguyễn Văn Nghĩa Em <nghi...@gmail.com> wrote:
>
> Hi All,
>
> These nodes are not in Local Area Network because our host provider
> doesn't have a local IP. It is only our DEV environments. If there are
> problems with cluster I will setup a local environment to try.
>
> Do you think that it is the reason of our issues ?
>
> Best Regards,
>
>
> 2017-02-10 3:21 GMT+07:00 DeadZen <dead...@deadzen.com>:
>
>> Why are they public?
>>
>> On Thu, Feb 9, 2017 at 3:11 PM, Alexander Sicular <sicul...@gmail.com>
>> wrote:
>> > Speaking of timings:
>> >
>> > ring_members : ['riak-node1@64.137.190.244','riak-node2@64.137.247.82',
>> > 'riak-node3@64.137.162.64','riak-node4@64.137.161.229',
>> > 'riak-node5@64.137.217.73']
>> >
>> > Are these nodes in the same local area network?
>> >
>> > On Thu, Feb 9, 2017 at 12:49 PM, my hue <tranmyhue.grac...@gmail.com>
>> wrote:
>> >> Dear Russel,
>> >>
>> >> I did the simplest possible with new document and use modify_type to
>> update
>> >> a single register.
>> >> I still meet fail update at some times.
>> >>
>> >> My steps did as follow :
>> >>
>> >> Step 1: Initial a new document Map
>> >> Step 2: Create new map with : riakc_pb_socket:update_type(Pid,
>> >> {BucketType, Bucket}, Key, riakc_map:to_op(Map), []).
>> >> Step 3: Fetch to check result :
>> >> riakc_pb_socket:fetch_type(Pid,{BucketType,Bucket}, Key).
>> >> Step 4: Create Fun for input of modify_type which update only one
>> field of
>> >> map
>> >>
>> >> Fun1 = fun(OldMap) -> riakc_map:update({<<"status_id">>, register},
>> fun(R)
>> >> -> riakc_register:set(<<"show">>, R) end, OldMap) end.
>> >>
>> >> Fun2 = fun(OldMap) -> riakc_map:update({<<"status_id">>, register},
>> fun(R)
>> >> -> riakc_register:set(<<"hide">>, R) end, OldMap) end.
>> >>
>> >> Step 5: Update :
>> >>
>> >> riakc_pb_socket:modify_type(Pid, Fun1, {BucketType, Bucket}, Key, []).
>> >>
>> >> Fetch to check :
>> >>
>> >> riakc_pb_socket:fetch_type(Pid,{BucketType,Bucket}, Key).
>> >>
>> >> Step 6: Update:
>> >>
>> >> riakc_pb_socket:modify_type(Pid, Fun2, {BucketType, Bucket}, Key, []).
>> >>
>> >> Fetch to check :
>> >>
>> >> riakc_pb_socket:fetch_type(Pid,{BucketType,Bucket}, Key).
>> >>
>> >>
>> >> For my debug and test, I repeated step 5 and step 6 on one document
>> about
>> >> 20 times.
>> >> And via many documents, I meet weird behaviour that some documents
>> meet fail
>> >> update, and some documents never fail update.
>> >> The first time, I think that cause network, or timeout between nodes
>> and
>> >> this is only random of fail. So I deleted documents with command:
>> >>
>> >> riakc_pb_socket:delete(Pid, {BucketType,Bucket}, Key, []).
>> >>
>> >> Then retest on each document of first test again. And It is very
>> amazing
>> >> that the documents meet fail at first test still meet fail at this
>> second
>> >> test, and the documents passed at first test still pass at this second
>> test.
>> >> Delete all again, and retest and of course get the same result.
>> >>
>> >> After all I make other test case, I used one fail document at all test
>> >> times, and keep all fields except change key to get different
>> documents for
>> >> the debug. And very surprise that I still got some fail and some
>> success,
>> >> although documents are the same field and value except key. Delete
>> and
>> >> retest and still the same result. Documents succeeded will be always
>> >> succeed. And document meet fail will be always failed. I totally do
>> not
>> >> understand root cause till now. And hope that can get support and help
>> from
>> >> the developers of riak. I can tell that my system mostly fail with
>> cluster
>> >> run when faced this issue.
>> >>
>> >> The following is some map documents I used on the test. And I also
>> attached
>> >> the extracted log of each node at one of the fail times together with
>> this
>> >> email. I do not really get meaning of riak log but hope that can help
>> >> developers of riak get something.
>> >>
>> >>
>> >>
>> >> * New Document which meet fail with my steps.
>> >>
>> >> {map,[],
>> >> [{{<<"account_id">>,register},
>> >> {register,<<>>,<<"accountqweraccountqweraccountqwer">>}},
>> >> {{<<"created_by_id">>,register},
>> >> {register,<<>>,<<"accountqweraccountqweraccountqwer">>}},
>> >> {{<<"created_time_dt">>,register},
>> >> {register,<<>>,<<"2017-02-7T23:49:04Z">>}},
>> >> {{<<"currency">>,register}, {register,<<>>,<<"usd">>}},
>> >>
>> >> {{<<"id">>,register},{register,<<>>,<<"menu12345678123456781
>> 23456789">>}},
>> >> {{<<"maintain_mode_b">>,register}, {register,<<>>,<<"false">>}},
>> >> {{<<"menu_category_revision_id">>,register},
>> >> {register,<<>>,<<"0-634736bc14e0bd3ed7e3fe0f1ee64443">>}},
>> >> {{<<"name">>,register},{register,<<>>,<<"menutest">>}},
>> >> {{<<"order_id">>,register},{register,<<>>,<<"0">>}},
>> >> {{<<"rest_location_p">>,register},
>> >> {register,<<>>,<<"10.844117421366443,106.63982392275398">>}},
>> >> {{<<"restaurant_id">>,register},
>> >> {register,<<>>,<<"rest848e042b3a0488640981c8a6dc4a8281">>}},
>> >> {{<<"restaurant_status_id">>,register},
>> {register,<<>>,<<"active">>}},
>> >> {{<<"start_time">>,register},{register,<<>>,<<"dont_use">>}},
>> >> {{<<"status_id">>,register},{register,<<>>,<<"show">>}},
>> >> {{<<"updated_by_id">>,register},
>> >> {register,<<>>,<<"accountqweraccountqweraccountqwer">>}},
>> >> {{<<"updated_time_dt">>,register},
>> >> {register,<<>>,<<"2017-02-7T23:49:04Z">>}}],
>> >> [],undefined}.
>> >>
>> >> Key = <<"menu1234567812345678123456789">>
>> >>
>> >> * New Document which always success with my steps:
>> >>
>> >> {map,[],
>> >> [{{<<"account_id">>,register},
>> >> {register,<<>>,<<"accountqweraccountqweraccountqwer">>}},
>> >> {{<<"created_by_id">>,register},
>> >> {register,<<>>,<<"accountqweraccountqweraccountqwer">>}},
>> >> {{<<"created_time_dt">>,register},
>> >> {register,<<>>,<<"2017-02-7T23:49:04Z">>}},
>> >> {{<<"currency">>,register},{register,<<>>,<<"usd">>}},
>> >>
>> >> {{<<"id">>,register},{register,<<>>,<<"menub497380c19be4fd3a
>> 3b51c85d4e9f246">>}},
>> >> {{<<"maintain_mode_b">>,register}, {register,<<>>,<<"false">>}},
>> >> {{<<"menu_category_revision_id">>,register},
>> >> {register,<<>>,<<"0-634736bc14e0bd3ed7e3fe0f1ee64443">>}},
>> >> {{<<"name">>,register},{register,<<>>,<<"menutest">>}},
>> >> {{<<"order_id">>,register},{register,<<>>,<<"0">>}},
>> >> {{<<"rest_location_p">>,register},
>> >> {register,<<>>,<<"10.844117421366443,106.63982392275398">>}},
>> >> {{<<"restaurant_id">>,register},
>> >> {register,<<>>,<<"rest848e042b3a0488640981c8a6dc4a8281">>}},
>> >> {{<<"restaurant_status_id">>,register},
>> {register,<<>>,<<"active">>}},
>> >> {{<<"start_time">>,register},{register,<<>>,<<"dont_use">>}},
>> >> {{<<"status_id">>,register},{register,<<>>,<<"show">>}},
>> >> {{<<"updated_by_id">>,register},
>> >> {register,<<>>,<<"accountqweraccountqweraccountqwer">>}},
>> >> {{<<"updated_time_dt">>,register},
>> >> {register,<<>>,<<"2017-02-7T23:49:04Z">>}}],
>> >> [], undefined}.
>> >>
>> >> Key = <<"menub497380c19be4fd3a3b51c85d4e9f246">>
>> >>
>> >> * New Document which fail with my steps
>> >>
>> >> {map,[],
>> >> [{{<<"account_id">>,register},
>> >> {register,<<>>,<<"accountqweraccountqweraccountqwer">>}},
>> >> {{<<"created_by_id">>,register},
>> >> {register,<<>>,<<"accountqweraccountqweraccountqwer">>}},
>> >> {{<<"created_time_dt">>,register},
>> >> {register,<<>>,<<"2017-02-7T23:49:04Z">>}},
>> >> {{<<"currency">>,register},{register,<<>>,<<"usd">>}},
>> >>
>> >> {{<<"id">>,register},{register,<<>>,<<"menufe89488afa948875c
>> ab6b0b18d579f22">>}},
>> >> {{<<"maintain_mode_b">>,register},
>> {register,<<>>,<<"false">>}},
>> >> {{<<"menu_category_revision_id">>,register},
>> >> {register,<<>>,<<"0-634736bc14e0bd3ed7e3fe0f1ee64443">>}},
>> >> {{<<"name">>,register},{register,<<>>,<<"menutest">>}},
>> >> {{<<"order_id">>,register},{register,<<>>,<<"0">>}},
>> >> {{<<"rest_location_p">>,register},
>> >> {register,<<>>,<<"10.844117421366443,106.63982392275398">>}},
>> >> {{<<"restaurant_id">>,register},
>> >> {register,<<>>,<<"rest848e042b3a0488640981c8a6dc4a8281">>}},
>> >> {{<<"restaurant_status_id">>,register},
>> {register,<<>>,<<"active">>}},
>> >> {{<<"start_time">>,register},{register,<<>>,<<"dont_use">>}},
>> >> {{<<"status_id">>,register},{register,<<>>,<<"show">>}},
>> >> {{<<"updated_by_id">>,register},
>> >> {register,<<>>,<<"accountqweraccountqweraccountqwer">>}},
>> >> {{<<"updated_time_dt">>,register},
>> >> {register,<<>>,<<"2017-02-7T23:49:04Z">>}}],
>> >> [],undefined}.
>> >>
>> >> Key = <<"menufe89488afa948875cab6b0b18d579f22">>.
>> >>
>> >> Note : All documents mostly the same except key, and tested with the
>> same
>> >> bucket type and bucket. Bucket Type and Bucket have properties with
>> which
>> >> I reported on first email. So for remind, under is a description of
>> bucket
>> >> type, bucket and cluster :
>> >>
>> >> * Bucket Type :
>> >>
>> >> - Bucket type created with the following command:
>> >>
>> >> riak-admin bucket-type create bucket_type_name
>> >> '{"props":{"backend":"bitcask_mult","datatype":"map"}}'
>> >>
>> >> riak-admin bucket-type activate bucket_type_name
>> >>
>> >>
>> >> * Bucket Property:
>> >>
>> >> {"props":{"name":"bucket_name","active":true,"allow_mult":tr
>> ue,"backend":"bitcask_mult","basic_quorum":false,"big_vcloc
>> k":50,"chash_keyfun":{"mod":"riak_core_util","fun":"chash_
>> std_keyfun"},"claimant":"riak-node1@64.137.190.244","datatyp
>> e":"map","dvv_enabled":true,"dw":"quorum","last_write_wins"
>> :false,"linkfun":{"mod":"riak_kv_wm_link_walker","fun":"
>> mapreduce_linkfun"},"n_val":3,"name":"bucket_name","notfound
>> _ok":true,"old_vclock":86400,"postcommit":[],"pr":0,"
>> precommit":[],"pw":0,"r":"quorum","rw":"quorum","search_inde
>> x":"menu_idx","small_vclock":50,"w":"quorum","young_vclock":20}}
>> >>
>> >> Note :
>> >> + "datatype":"map"
>> >> + "last_write_wins": false
>> >> + "dvv_enabled": true
>> >> + "allow_mult": true
>> >>
>> >>
>> >> * Cluster Infor :
>> >>
>> >> - Member status :
>> >>
>> >>>> riak-admin member-status
>> >>
>> >> ================================= Membership
>> >> ==================================
>> >> Status Ring Pending Node
>> >> ------------------------------------------------------------
>> -------------------
>> >> valid 18.8% -- 'riak-node1@64.137.190.244'
>> >> valid 18.8% -- 'riak-node2@64.137.247.82'
>> >> valid 18.8% -- 'riak-node3@64.137.162.64'
>> >> valid 25.0% -- 'riak-node4@64.137.161.229'
>> >> valid 18.8% -- 'riak-node5@64.137.217.73'
>> >> ------------------------------------------------------------
>> -------------------
>> >> Valid:5 / Leaving:0 / Exiting:0 / Joining:0 / Down:0
>> >>
>> >> ------------------------------------------------------------
>> -----------------------------------------------------------------
>> >>
>> >> - Ring
>> >>
>> >>>> riak-admin status | grep ring
>> >>
>> >> ring_creation_size : 64
>> >> ring_members : ['riak-node1@64.137.190.244','riak-node2@64.137.247.82
>> ',
>> >> 'riak-node3@64.137.162.64','riak-node4@64.137.161.229',
>> >> 'riak-node5@64.137.217.73']
>> >> ring_num_partitions : 64
>> >> ring_ownership : <<"[{'riak-node2@64.137.247.82',12},\n
>> >> {'riak-node5@64.137.217.73',12},\n {'riak-node1@64.137.190.244',12},\n
>> >> {'riak-node3@64.137.162.64',12},\n {'riak-node4@64.137.161.229',1
>> 6}]">>
>> >> rings_reconciled : 0
>> >> rings_reconciled_total : 31
>> >>
>> >>
>> >>
>> >>
>> >>
>> >>
>> >>
>> >>
>> >>
>> >> On Tue, Feb 7, 2017 at 5:37 PM, Russell Brown <russell.br...@mac.com>
>> wrote:
>> >>>
>> >>>
>> >>> On 7 Feb 2017, at 10:27, my hue <tranmyhue.grac...@gmail.com> wrote:
>> >>>
>> >>> > Dear Russell,
>> >>> >
>> >>> > Yes, I updated all registers in one go.
>> >>> > And I do not try yet with updating a single register at a time.
>> >>> > let me try to see. But I wonder that any affect on solving
>> conflict at
>> >>> > riak cluster
>> >>> > if update all in one go?
>> >>> >
>> >>>
>> >>> Just trying to make the search space as small as possible. I don’t
>> think
>> >>> _any_ of this should fail. The maps code is very well tested and well
>> used,
>> >>> so it’s all kind of odd.
>> >>>
>> >>> Without hands on it’s hard to debug, and email back and forth is
>> slow, so
>> >>> if you try the simplest possible thing and that still fails, it helps.
>> >>>
>> >>> IMO the simplest possible thing is to start with a new, empty key and
>> use
>> >>> modify_type to update a single register.
>> >>>
>> >>> Many thanks
>> >>>
>> >>> Russell
>> >>>
>> >>> >
>> >>> >
>> >>> > On Tue, Feb 7, 2017 at 5:18 PM, Russell Brown <
>> russell.br...@mac.com>
>> >>> > wrote:
>> >>> > So in you’re updating all those registers in one go? Out of
>> interest,
>> >>> > what happens if you update a single register at a time?
>> >>> >
>> >>> > On 7 Feb 2017, at 10:02, my hue <tranmyhue.grac...@gmail.com>
>> wrote:
>> >>> >
>> >>> > > Dear Russel,
>> >>> > >
>> >>> > > > Can you run riakc_map:to_op(Map). and show me the output of
>> that,
>> >>> > > > please?
>> >>> > >
>> >>> > > The following is output of riakc_map:to_op(Map) :
>> >>> > >
>> >>> > > {map, {update, [{update,
>> >>> > > {<<"updated_time_dt">>,register},{assign,<<"2017-02-06T17:
>> 22:39Z">>}},
>> >>> > > {update,{<<"updated_by_id">>,register},
>> >>> > > {assign,<<"accounta25a424b8484181e8ba1bec25bf7c491">>}},{
>> update,{<<"status_id">>,register},{assign,<<"show">>}}
>> ,{update,{<<"start_time">>,register},{assign,<<"dont_use"
>> >>}},{update,{<<"restaurant_status_id">>,register},
>> >>> > > {assign,<<"inactive">>}}, {update,{<<"restaurant_id">>,register},
>> >>> > > {assign,<<"rest848e042b3a0488640981c8a6dc4a8281">>}},{
>> update,{<<"rest_location_p">>,register},
>> >>> > > {assign,<<"10.844117421366443,106.63982392275398">>}},
>> >>> > > {update,{<<"order_i">>,register},{assign,<<"0">>}},
>> >>> > > {update,{<<"name">>,register},{assign,<<"fullmenu">>}},
>> >>> > > {update,{<<"menu_category_revision_id">>,register},
>> >>> > > {assign,<<"0-634736bc14e0bd3ed7e3fe0f1ee64443">>}},
>> >>> > > {update,{<<"maintain_mode_b">>,register},{assign,<<"false">>}},
>> >>> > > {update,{<<"id">>,register},
>> >>> > > {assign,<<"menufe89488afa948875cab6b0b18d579f21">>}},
>> >>> > > {update,{<<"end_time">>,register},{assign,<<"dont_use">>}},{
>> update,{<<"currency">>,register},{assign,<<"cad">>}},
>> >>> > > {update,{<<"created_time_dt">>,register},
>> >>> > > {assign,<<"2017-01-27T03:34:04Z">>}},
>> >>> > > {update,{<<"created_by_id">>,register},
>> >>> > > {assign,<<"accounta25a424b8484181e8ba1bec25bf7c491">>}},
>> >>> > > {update,{<<"account_id">>,register},
>> >>> > > {assign,<<"accounta25a424b8484181e8ba1bec25bf7c491">>}}]},
>> >>> > > <<131,108,0,0,0,3,104,2,109,0,0,0,12,39,21,84,209,219,42,57,
>> 233,0,0,156,252,97,34,104,2,109,0,0,0,12,132,107,248,226,103
>> ,5,182,208,0,0,118,2,97,39,104,2,109,0,0,0,12,137,252,139,
>> 186,176,202,25,96,0,0,195,164,97,53,106>>}
>> >>> > >
>> >>> > >
>> >>> > >
>> >>> > >
>> >>> > > On Tue, Feb 7, 2017 at 4:36 PM, Russell Brown <
>> russell.br...@mac.com>
>> >>> > > wrote:
>> >>> > >
>> >>> > > On 7 Feb 2017, at 09:34, my hue <tranmyhue.grac...@gmail.com>
>> wrote:
>> >>> > >
>> >>> > > > Dear Russell,
>> >>> > > >
>> >>> > > > >What operation are you performing? What is the update you
>> perform?
>> >>> > > > > Do you set a register value, add a register, remove a
>> register?
>> >>> > > >
>> >>> > > > I used riakc_map:update to update value with map. I do the
>> following
>> >>> > > > steps :
>> >>> > > >
>> >>> > > > - Get FetchData map with fetch_type
>> >>> > > > - Extract key, value, context from FetchData
>> >>> > > > - Obtain UpdateData with:
>> >>> > > >
>> >>> > > > + Init map with context
>> >>> > >
>> >>> > > I don’t understand this step
>> >>> > >
>> >>> > > > + Use :
>> >>> > > >
>> >>> > > > riakc_map:update({K, register}, fun(R) ->
>> riakc_register:set(V,
>> >>> > > > R) end, InitMap)
>> >>> > > >
>> >>> > > > to obtain UpdateData
>> >>> > > >
>> >>> > > > Note:
>> >>> > > > K : key
>> >>> > > > V: value
>> >>> > > >
>> >>> > > > - Then update UpdateData with update_type
>> >>> > > >
>> >>> > >
>> >>> > > Can you run riakc_map:to_op(Map). and show me the output of that,
>> >>> > > please?
>> >>> > >
>> >>> > > > The following is sample about Update data :
>> >>> > > >
>> >>> > > > {map, [] ,
>> >>> > > >
>> >>> > > > [{{<<"account_id">>,register},{register,<<>>,<<"accounta25a4
>> 24b8484181e8ba1bec25bf7c491">>}},{{<<"created_by_id">>,
>> register},{register,<<>>,<<"accounta25a424b8484181e8ba1bec25
>> bf7c491">>}},{{<<"created_time_dt">>,register},{register,<<>
>> >,<<"2017-01-27T03:34:04Z">>}},{{<<"currency">>,register},{r
>> egister,<<>>,<<"cad">>}},{{<<"end_time">>,register},{registe
>> r,<<>>,<<"dont_use">>}},{{<<"id">>,register},{register,<<>>
>> ,<<"menufe89488afa948875cab6b0b18d579f21">>}},{{<<"maintain_
>> mode_b">>,register},{register,<<>>,<<"false">>}},{{<<"menu_c
>> ategory_revision_id">>,register},{register,<<>>,<<"0-634736b
>> c14e0bd3ed7e3fe0f1ee64443">>}},{{<<"name">>,register},{
>> register,<<>>,<<"fullmenu">>}},{{<<"order_i">>,register},{re
>> gister,<<>>,<<"0">>}},{{<<"rest_location_p">>,register},{reg
>> ister,<<>>,<<"10.844117421366443,106.63982392275398">>}},{{<
>> <"restaurant_id">>,register},{register,<<>>,<<"rest848e042b3
>> a0488640981c8a6dc4a8281">>}},{{<<"restaurant_status_id">>,
>> register},{register,<<>>,<<"inactive">>}},{{<<"start_time"
>> >>,register},{register,<<>>,<<"dont_use">>}},{{<<"status_id"
>> >>,register},{register,<<>>,<<"show">>}},{{<<"updated_by_id"
>> >>,register},{register,<<>>,<<"accounta25a424b8484181e8ba1be
>> c25bf7c491">>}},{{<<"updated_time_dt">>,register},{register,
>> <<>>,<<"2017-02-06T17:22:39Z">>}}],
>> >>> > > > [] ,
>> >>> > > > <<131,108,0,0,0,3,104,2,109,0,0,0,12,39,21,84,209,219,42,57,
>> 233,0,0,156,252,97,34,104,2,109,0,0,0,12,132,107,248,226,103
>> ,5,182,208,0,0,118,2,97,39,104,2,109,0,0,0,12,137,252,139,
>> 186,176,202,25,96,0,0,195,164,97,53,106>>
>> >>> > > > }
>> >>> > > >
>> >>> > > >
>> >>> > > > On Tue, Feb 7, 2017 at 3:43 PM, Russell Brown
>> >>> > > > <russell.br...@mac.com> wrote:
>> >>> > > >
>> >>> > > > On 7 Feb 2017, at 08:17, my hue <tranmyhue.grac...@gmail.com>
>> wrote:
>> >>> > > >
>> >>> > > > > Dear John and Russell Brown,
>> >>> > > > >
>> >>> > > > > * How fast is your turnaround time between an update and a
>> fetch?
>> >>> > > > >
>> >>> > > > > The turnaround time between an update and a fetch about 1
>> second.
>> >>> > > > > During my team and I debug, we adjusted haproxy with the
>> scenario
>> >>> > > > > as follow:
>> >>> > > > >
>> >>> > > > > Scenario 1 : round robin via 5 nodes of cluster
>> >>> > > > >
>> >>> > > > > We meet issue at scenario 1 and we are afraid of that timeout
>> can
>> >>> > > > > be occurs between nodes,
>> >>> > > > > make us still get stale data. Then we performed scenario 2
>> >>> > > > >
>> >>> > > > > Scenario 2: Disable round robin and only route request to
>> node 1.
>> >>> > > > > Cluster still is 5 nodes.
>> >>> > > > > With this case we ensure that request update and fetch always
>> come
>> >>> > > > > to and from node 1.
>> >>> > > > > And the issue still occurs.
>> >>> > > > >
>> >>> > > > > At the fail time, I hoped that can get any error log from riak
>> >>> > > > > nodes to give me any information.
>> >>> > > > > But riak log show to me nothing and everything is ok.
>> >>> > > > >
>> >>> > > > > * What operation are you performing?
>> >>> > > > >
>> >>> > > > > I used :
>> >>> > > > >
>> >>> > > > > riakc_pb_socket:update_type(Pid, {Bucket-Type, Bucket}, Key,
>> >>> > > > > riakc_map:to_op(Map), []).
>> >>> > > > > riakc_pb_socket:fetch_type(Pid, {BucketType, Bucket}, Key,
>> []).
>> >>> > > >
>> >>> > > > What operation are you performing? What is the update you
>> perform?
>> >>> > > > Do you set a register value, add a register, remove a register?
>> >>> > > > >
>> >>> > > > > * It looks like the map is a single level map of
>> last-write-wins
>> >>> > > > > registers. Is there a chance that the time on the node
>> handling the update
>> >>> > > > > is behind the value in the lww-register?
>> >>> > > > >
>> >>> > > > > => I am not sure about logic show conflict of internal riak
>> node.
>> >>> > > > > And the issue never happens if I used single node.
>> >>> > > > > My bucket properties as follow :
>> >>> > > > >
>> >>> > > > >
>> >>> > > > > {"props":{"name":"menu","active":true,"allow_mult":true,"
>> backend":"bitcask_mult","basic_quorum":false,"big_vcloc
>> k":50,"chash_keyfun":{"mod":"riak_core_util","fun":"chash_
>> std_keyfun"},"claimant":"riak-node1@64.137.190.244","datatyp
>> e":"map","dvv_enabled":true,"dw":"quorum","last_write_wins"
>> :false,"linkfun":{"mod":"riak_kv_wm_link_walker","fun":"
>> mapreduce_linkfun"},"n_val":3,"name":"menu","notfound_ok":
>> true,"old_vclock":86400,"postcommit":[],"pr":0,"
>> precommit":[],"pw":0,"r":"quorum","rw":"quorum","search_inde
>> x":"menu_idx","small_vclock":50,"w":"quorum","young_vclock":20}}
>> >>> > > > >
>> >>> > > > > Note :
>> >>> > > > > + "datatype":"map"
>> >>> > > > > + "last_write_wins": false
>> >>> > > > > + "dvv_enabled": true
>> >>> > > > > + "allow_mult": true
>> >>> > > > >
>> >>> > > > >
>> >>> > > > > * Have you tried using the `modify_type` operation in
>> >>> > > > > riakc_pb_socket which does the fetch/update operation in
>> sequence for you?
>> >>> > > > >
>> >>> > > > > => I dot not use yet, but my action is sequence with fetch and
>> >>> > > > > then update. Might be I will try modify_type to see.
>> >>> > > > >
>> >>> > > > > * Anything in the error logs on any of the nodes?
>> >>> > > > >
>> >>> > > > > => From the node log, no errror report at fail time.
>> >>> > > > >
>> >>> > > > > * Is the opaque context identical from the fetch and then
>> later
>> >>> > > > > after the update?
>> >>> > > > >
>> >>> > > > > => There is the context got from fetch and that context used
>> with
>> >>> > > > > update.
>> >>> > > > > And during our debug time with string of sequence : fetch ,
>> >>> > > > > update, fetch , update , .... the context I saw always the
>> same at
>> >>> > > > > fetch data.
>> >>> > > > >
>> >>> > > > > Best regards,
>> >>> > > > > Hue Tran
>> >>> > > > >
>> >>> > > > >
>> >>> > > > >
>> >>> > > > > On Tue, Feb 7, 2017 at 2:11 AM, John Daily <jda...@basho.com>
>> >>> > > > > wrote:
>> >>> > > > > Originally I suspected the context which allows Riak to
>> resolve
>> >>> > > > > conflicts was not present in your data, but I see it in your
>> map structure.
>> >>> > > > > Thanks for supplying such a detailed description.
>> >>> > > > >
>> >>> > > > > How fast is your turnaround time between an update and a
>> fetch?
>> >>> > > > > Even if the cluster is healthy it’s not impossible to see a
>> timeout between
>> >>> > > > > nodes, which could result in a stale retrieval. Have you
>> verified whether
>> >>> > > > > the stale data persists?
>> >>> > > > >
>> >>> > > > > A single node cluster gives an advantage that you’ll never
>> see in
>> >>> > > > > a real cluster: a perfectly synchronized clock. It also
>> reduces (but does
>> >>> > > > > not completely eliminate) the possibility of an internal
>> timeout between
>> >>> > > > > processes.
>> >>> > > > >
>> >>> > > > > -John
>> >>> > > > >
>> >>> > > > >> On Feb 6, 2017, at 1:02 PM, my hue <
>> tranmyhue.grac...@gmail.com>
>> >>> > > > >> wrote:
>> >>> > > > >>
>> >>> > > > >> Dear Riak Team,
>> >>> > > > >>
>> >>> > > > >> I and my team used riak as database for my production with an
>> >>> > > > >> cluster including 5 nodes.
>> >>> > > > >> While production run, we meet an critical bug that is
>> sometimes
>> >>> > > > >> fail to update document.
>> >>> > > > >> I and my colleagues performed debug and detected an issue
>> with
>> >>> > > > >> the scenario as follow:
>> >>> > > > >>
>> >>> > > > >> + fetch document
>> >>> > > > >> + change value of document
>> >>> > > > >> + update document
>> >>> > > > >>
>> >>> > > > >> Repeat about 10 times and will meet fail. With the document
>> is
>> >>> > > > >> updated continually,
>> >>> > > > >> sometimes will face update fail.
>> >>> > > > >>
>> >>> > > > >> The first time, 5 nodes of cluster we used riak version
>> 2.1.1.
>> >>> > > > >> After meet above bug, we upgraded to use riak version 2.2.0
>> and
>> >>> > > > >> this issue still occurs.
>> >>> > > > >>
>> >>> > > > >> Via many time test, debug using Tcpdump at riak node :
>> >>> > > > >>
>> >>> > > > >> tcpdump -A -ttt -i {interface} src host {host} and dst port
>> >>> > > > >> {port}
>> >>> > > > >>
>> >>> > > > >> And together with the command:
>> >>> > > > >>
>> >>> > > > >> riak-admin status | grep "node_puts_map\|
>> node_puts_map_total\|
>> >>> > > > >> node_puts_total\| vnode_map_update_total\| vnode_puts_total\"
>> >>> > > > >>
>> >>> > > > >> we got that the riak server already get the update request.
>> >>> > > > >> However, do not know why riak backend fail to update
>> document.
>> >>> > > > >> At the fail time, from riak server log everything is ok.
>> >>> > > > >>
>> >>> > > > >> Then we removed cluster and use a single riak server, and
>> see
>> >>> > > > >> that above bug never happen.
>> >>> > > > >>
>> >>> > > > >> For that reason, think that is only happen with cluster
>> work. We
>> >>> > > > >> took research on basho riak document and our riak configure
>> >>> > > > >> seems that like suggestion from document. We totally
>> blocked on
>> >>> > > > >> this issue and hope that can get support from you
>> >>> > > > >> so that can obtain a stable work from riak database for our
>> >>> > > > >> production.
>> >>> > > > >> Thank you so much. Hope that can get your reply soon.
>> >>> > > > >>
>> >>> > > > >>
>> >>> > > > >> * The following is our riak node information :
>> >>> > > > >>
>> >>> > > > >> Riak version: 2.2.0
>> >>> > > > >> OS : CentOS Linux release 7.2.1511
>> >>> > > > >> Cpu : 4 core
>> >>> > > > >> Memory : 4G
>> >>> > > > >> Riak configure : the attached file "riak.conf"
>> >>> > > > >>
>> >>> > > > >> Note :
>> >>> > > > >>
>> >>> > > > >> - We mostly using default configure of riak configure except
>> that
>> >>> > > > >> we used storage backend is multi
>> >>> > > > >>
>> >>> > > > >> storage_backend = multi
>> >>> > > > >> multi_backend.bitcask_mult.storage_backend = bitcask
>> >>> > > > >> multi_backend.bitcask_mult.bitcask.data_root =
>> >>> > > > >> /var/lib/riak/bitcask_mult
>> >>> > > > >> multi_backend.default = bitcask_mult
>> >>> > > > >>
>> >>> > > > >>
>> >>> > > > >> ------------------------------------------------------------
>> -----------------------------------------------------------------
>> >>> > > > >>
>> >>> > > > >> - Bucket type created with the following command:
>> >>> > > > >>
>> >>> > > > >> riak-admin bucket-type create dev_restor
>> >>> > > > >> '{"props":{"backend":"bitcask_mult","datatype":"map"}}'
>> >>> > > > >> riak-admin bucket-type activate dev_restor
>> >>> > > > >>
>> >>> > > > >>
>> >>> > > > >> ------------------------------------------------------------
>> -----------------------------------------------------------------
>> >>> > > > >>
>> >>> > > > >> - Bucket Type Status :
>> >>> > > > >>
>> >>> > > > >> >> riak-admin bucket-type status dev_restor
>> >>> > > > >>
>> >>> > > > >> dev_restor is active
>> >>> > > > >> young_vclock: 20
>> >>> > > > >> w: quorum
>> >>> > > > >> small_vclock: 50
>> >>> > > > >> rw: quorum
>> >>> > > > >> r: quorum
>> >>> > > > >> pw: 0
>> >>> > > > >> precommit: []
>> >>> > > > >> pr: 0
>> >>> > > > >> postcommit: []
>> >>> > > > >> old_vclock: 86400
>> >>> > > > >> notfound_ok: true
>> >>> > > > >> n_val: 3
>> >>> > > > >> linkfun: {modfun,riak_kv_wm_link_walker,mapreduce_linkfun}
>> >>> > > > >> last_write_wins: false
>> >>> > > > >> dw: quorum
>> >>> > > > >> dvv_enabled: true
>> >>> > > > >> chash_keyfun: {riak_core_util,chash_std_keyfun}
>> >>> > > > >> big_vclock: 50
>> >>> > > > >> basic_quorum: false
>> >>> > > > >> backend: <<"bitcask_mult">>
>> >>> > > > >> allow_mult: true
>> >>> > > > >> datatype: map
>> >>> > > > >> active: true
>> >>> > > > >> claimant: 'riak-node1@64.137.190.244'
>> >>> > > > >>
>> >>> > > > >>
>> >>> > > > >> ------------------------------------------------------------
>> -----------------------------------------------------------------
>> >>> > > > >>
>> >>> > > > >> - Bucket Property :
>> >>> > > > >>
>> >>> > > > >>
>> >>> > > > >> {"props":{"name":"menu","active":true,"allow_mult":true,"
>> backend":"bitcask_mult","basic_quorum":false,"big_vcloc
>> k":50,"chash_keyfun":{"mod":"riak_core_util","fun":"chash_
>> std_keyfun"},"claimant":"riak-node1@64.137.190.244","datatyp
>> e":"map","dvv_enabled":true,"dw":"quorum","last_write_wins"
>> :false,"linkfun":{"mod":"riak_kv_wm_link_walker","fun":"
>> mapreduce_linkfun"},"n_val":3,"name":"menu","notfound_ok":
>> true,"old_vclock":86400,"postcommit":[],"pr":0,"
>> precommit":[],"pw":0,"r":"quorum","rw":"quorum","search_inde
>> x":"menu_idx","small_vclock":50,"w":"quorum","young_vclock":20}}
>> >>> > > > >>
>> >>> > > > >>
>> >>> > > > >>
>> >>> > > > >> ------------------------------------------------------------
>> -----------------------------------------------------------------
>> >>> > > > >>
>> >>> > > > >> - Member status :
>> >>> > > > >>
>> >>> > > > >> >> riak-admin member-status
>> >>> > > > >>
>> >>> > > > >> ================================= Membership
>> >>> > > > >> ==================================
>> >>> > > > >> Status Ring Pending Node
>> >>> > > > >>
>> >>> > > > >> ------------------------------------------------------------
>> -------------------
>> >>> > > > >> valid 18.8% -- 'riak-node1@64.137.190.244'
>> >>> > > > >> valid 18.8% -- 'riak-node2@64.137.247.82'
>> >>> > > > >> valid 18.8% -- 'riak-node3@64.137.162.64'
>> >>> > > > >> valid 25.0% -- 'riak-node4@64.137.161.229'
>> >>> > > > >> valid 18.8% -- 'riak-node5@64.137.217.73'
>> >>> > > > >>
>> >>> > > > >> ------------------------------------------------------------
>> -------------------
>> >>> > > > >> Valid:5 / Leaving:0 / Exiting:0 / Joining:0 / Down:0
>> >>> > > > >>
>> >>> > > > >>
>> >>> > > > >>
>> >>> > > > >> ------------------------------------------------------------
>> -----------------------------------------------------------------
>> >>> > > > >>
>> >>> > > > >> - Ring
>> >>> > > > >>
>> >>> > > > >> >> riak-admin status | grep ring
>> >>> > > > >>
>> >>> > > > >> ring_creation_size : 64
>> >>> > > > >> ring_members :
>> >>> > > > >> ['riak-node1@64.137.190.244','riak-node2@64.137.247.82',
>> >>> > > > >> 'riak-node3@64.137.162.64','riak-node4@64.137.161.229',
>> >>> > > > >> 'riak-node5@64.137.217.73']
>> >>> > > > >> ring_num_partitions : 64
>> >>> > > > >> ring_ownership : <<"[{'riak-node2@64.137.247.82',12},\n
>> >>> > > > >> {'riak-node5@64.137.217.73',12},\n {'
>> riak-node1@64.137.190.244',12},\n
>> >>> > > > >> {'riak-node3@64.137.162.64',12},\n {'
>> riak-node4@64.137.161.229',16}]">>
>> >>> > > > >> rings_reconciled : 0
>> >>> > > > >> rings_reconciled_total : 31
>> >>> > > > >>
>> >>> > > > >>
>> >>> > > > >> ------------------------------------------------------------
>> -----------------------------------------------------------------
>> >>> > > > >>
>> >>> > > > >> * The riak client :
>> >>> > > > >>
>> >>> > > > >> + riak-erlang-client:
>> >>> > > > >> https://github.com/basho/riak-erlang-client
>> >>> > > > >> + release : 2.4.2
>> >>> > > > >>
>> >>> > > > >>
>> >>> > > > >> ------------------------------------------------------------
>> -----------------------------------------------------------------
>> >>> > > > >>
>> >>> > > > >> * Riak client API used:
>> >>> > > > >>
>> >>> > > > >> + Insert/Update:
>> >>> > > > >>
>> >>> > > > >> riakc_pb_socket:update_type(Pid, {Bucket-Type, Bucket}, Key,
>> >>> > > > >> riakc_map:to_op(Map), []).
>> >>> > > > >>
>> >>> > > > >> + Fetch :
>> >>> > > > >>
>> >>> > > > >> riakc_pb_socket:fetch_type(Pid, {BucketType, Bucket}, Key,
>> []).
>> >>> > > > >>
>> >>> > > > >>
>> >>> > > > >> ------------------------------------------------------------
>> -----------------------------------------------------------------
>> >>> > > > >>
>> >>> > > > >> * Step to perform an update :
>> >>> > > > >>
>> >>> > > > >> - Fetch document
>> >>> > > > >> - Update document
>> >>> > > > >>
>> >>> > > > >>
>> >>> > > > >> ------------------------------------------------------------
>> -----------------------------------------------------------------
>> >>> > > > >>
>> >>> > > > >> * Data got from fetch_type:
>> >>> > > > >>
>> >>> > > > >> {map, [{{<<"account_id">>,register},
>> >>> > > > >> <<"accounta25a424b8484181e8ba1bec25bf7c491">>},
>> >>> > > > >> {{<<"created_by_id">>,register},
>> >>> > > > >> <<"accounta25a424b8484181e8ba1bec25bf7c491">>},
>> >>> > > > >> {{<<"created_time_dt">>,register},<<"2017-01-27T03:34:04Z">>
>> },
>> >>> > > > >> {{<<"currency">>,register},<<"cad">>},
>> >>> > > > >> {{<<"end_time">>,register},<<"dont_use">>},
>> >>> > > > >> {{<<"id">>,register},<<"menufe89488afa948875cab6b0b18d579f21
>> ">>},
>> >>> > > > >> {{<<"maintain_mode_b">>,register},<<"false">>},
>> >>> > > > >> {{<<"menu_category_revision_id">>,register},
>> >>> > > > >> <<"0-634736bc14e0bd3ed7e3fe0f1ee64443">>},
>> >>> > > > >> {{<<"name">>,register},<<"fullmenu">>},
>> {{<<"order_i">>,register},<<"0">>},
>> >>> > > > >> {{<<"rest_location_p">>,register},
>> >>> > > > >> <<"10.844117421366443,106.63982392275398">>},
>> >>> > > > >> {{<<"restaurant_id">>,register},
>> >>> > > > >> <<"rest848e042b3a0488640981c8a6dc4a8281">>},
>> >>> > > > >> {{<<"restaurant_status_id">>,register},<<"inactive">>},
>> >>> > > > >> {{<<"start_time">>,register},<<"dont_use">>},
>> >>> > > > >> {{<<"status_id">>,register},<<"hide">>},
>> {{<<"updated_by_id">>,register},
>> >>> > > > >> <<"accounta25a424b8484181e8ba1bec25bf7c491">>},
>> >>> > > > >> {{<<"updated_time_dt">>,register},<<"2017-02-06T17:22:39Z">>
>> }],
>> >>> > > > >> [],
>> >>> > > > >> [],
>> >>> > > > >> <<131,108,0,0,0,3,104,2,109,0,0,0,12,39,21,84,209,219,42,57,
>> 233,0,0,156,252,97,34,104,2,109,0,0,0,12,132,107,248,226,103
>> ,5,182,208,0,0,118,2,97,40,104,2,109,0,0,0,12,137,252,139,
>> 186,176,202,25,96,0,0,195,164,97,54,106>>}
>> >>> > > > >>
>> >>> > > > >>
>> >>> > > > >> * Update with update_type
>> >>> > > > >>
>> >>> > > > >> Below is Map data before using riakc_map:to_op(Map) :
>> >>> > > > >>
>> >>> > > > >> {map, [] ,
>> >>> > > > >>
>> >>> > > > >> [{{<<"account_id">>,register},{register,<<>>,<<"accounta25a4
>> 24b8484181e8ba1bec25bf7c491">>}},{{<<"created_by_id">>,
>> register},{register,<<>>,<<"accounta25a424b8484181e8ba1bec25
>> bf7c491">>}},{{<<"created_time_dt">>,register},{register,<<>
>> >,<<"2017-01-27T03:34:04Z">>}},{{<<"currency">>,register},{r
>> egister,<<>>,<<"cad">>}},{{<<"end_time">>,register},{registe
>> r,<<>>,<<"dont_use">>}},{{<<"id">>,register},{register,<<>>
>> ,<<"menufe89488afa948875cab6b0b18d579f21">>}},{{<<"maintain_
>> mode_b">>,register},{register,<<>>,<<"false">>}},{{<<"menu_c
>> ategory_revision_id">>,register},{register,<<>>,<<"0-634736b
>> c14e0bd3ed7e3fe0f1ee64443">>}},{{<<"name">>,register},{
>> register,<<>>,<<"fullmenu">>}},{{<<"order_i">>,register},{re
>> gister,<<>>,<<"0">>}},{{<<"rest_location_p">>,register},{reg
>> ister,<<>>,<<"10.844117421366443,106.63982392275398">>}},{{<
>> <"restaurant_id">>,register},{register,<<>>,<<"rest848e042b3
>> a0488640981c8a6dc4a8281">>}},{{<<"restaurant_status_id">>,
>> register},{register,<<>>,<<"inactive">>}},{{<<"start_time"
>> >>,register},{register,<<>>,<<"dont_use">>}},{{<<"status_id"
>> >>,register},{register,<<>>,<<"show">>}},{{<<"updated_by_id"
>> >>,register},{register,<<>>,<<"accounta25a424b8484181e8ba1be
>> c25bf7c491">>}},{{<<"updated_time_dt">>,register},{register,
>> <<>>,<<"2017-02-06T17:22:39Z">>}}],
>> >>> > > > >> [] ,
>> >>> > > > >> <<131,108,0,0,0,3,104,2,109,0,0,0,12,39,21,84,209,219,42,57,
>> 233,0,0,156,252,97,34,104,2,109,0,0,0,12,132,107,248,226,103
>> ,5,182,208,0,0,118,2,97,39,104,2,109,0,0,0,12,137,252,139,
>> 186,176,202,25,96,0,0,195,164,97,53,106>>
>> >>> > > > >> }
>> >>> > > > >>
>> >>> > > > >>
>> >>> > > > >>
>> >>> > > > >>
>> >>> > > > >> -
>> >>> > > > >>
>> >>> > > > >> Best regards,
>> >>> > > > >> Hue Tran
>> >>> > > > >> <riak.conf>_______________________________________________
>> >>> > > > >> riak-users mailing list
>> >>> > > > >> riak-users@lists.basho.com
>> >>> > > > >>
>> >>> > > > >> http://lists.basho.com/mailman/listinfo/riak-users_lists.
>> basho.com
>> >>> > > > >
>> >>> > > > >
>> >>> > > >
>> >>> > > >
>> >>> > >
>> >>> > >
>> >>> >
>> >>> >
>> >>>
>> >>
>> >>
>> >> _______________________________________________
>> >> riak-users mailing list
>> >> riak-users@lists.basho.com
>> >> http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com
>> >>
>> >
>> > _______________________________________________
>> > riak-users mailing list
>> > riak-users@lists.basho.com
>> > http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com
>>
>
>
>
> --
> Best regards,
> ------------------------------------------------------------
> -------------------------------------------------
> EM NGUYEN
> Mobile: +84 949669075 <+84%2094%20966%2090%2075>
> Yahoo & Skype: nghiaembt
> Website: http://freeswitch.vn
> ------------------------------------------------------------
> --------------------------------------------------
> _______________________________________________
> riak-users mailing list
> riak-users@lists.basho.com
> http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com
>
>
>
_______________________________________________
riak-users mailing list
riak-users@lists.basho.com
http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com
