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From Jan Lehnardt <...@apache.org>
Subject Re: replication problems
Date Wed, 10 Oct 2012 20:12:09 GMT
Filipe tells me this is https://issues.apache.org/jira/browse/COUCHDB-1259

Cheers
Jan
--

On Oct 4, 2012, at 02:28 , Dustin Sallings <dustin@spy.net> wrote:

> 
> 	I'm bringing this back up as requested.  I'm currently simultaneously in the "not replicating
interesting things" and "has duplicate replicates state".  I think the stuff below shows the
"not replicating" stuff.
> 
> 	Active tasks shows the other (these are based on replicator DB documents (example below):
> 
> [
>    {
>        "checkpointed_source_seq": 2022317, 
>        "continuous": true, 
>        "doc_id": "cbstats-from-dogbowl", 
>        "doc_write_failures": 0, 
>        "docs_read": 300, 
>        "docs_written": 300, 
>        "missing_revisions_found": 300, 
>        "pid": "<0.10466.12>", 
>        "progress": 100, 
>        "replication_id": "50daecd0a29f4b7e5d102990831f3d64+continuous", 
>        "revisions_checked": 304, 
>        "source": "http://dustin:*****@single.couchbase.net/cbstats/", 
>        "source_seq": 2022317, 
>        "started_on": 1349309457, 
>        "target": "cbstats", 
>        "type": "replication", 
>        "updated_on": 1349310442
>    }, 
>    {
>        "checkpointed_source_seq": 2022317, 
>        "continuous": true, 
>        "doc_id": "cbstats-from-dogbowl", 
>        "doc_write_failures": 0, 
>        "docs_read": 62, 
>        "docs_written": 62, 
>        "missing_revisions_found": 62, 
>        "pid": "<0.11019.12>", 
>        "progress": 100, 
>        "replication_id": "411e341d5aa9a3fe636cf4ea8ba71720+continuous", 
>        "revisions_checked": 304, 
>        "source": "http://dustin:*****@single.couchbase.net/cbstats/", 
>        "source_seq": 2022317, 
>        "started_on": 1349309471, 
>        "target": "cbstats", 
>        "type": "replication", 
>        "updated_on": 1349310443
>    }, 
>    {
>        "checkpointed_source_seq": 107068, 
>        "continuous": true, 
>        "doc_id": "gerrit-from-prod", 
>        "doc_write_failures": 0, 
>        "docs_read": 22, 
>        "docs_written": 22, 
>        "missing_revisions_found": 22, 
>        "pid": "<0.11086.12>", 
>        "progress": 100, 
>        "replication_id": "4a21031dac0d81637a23c32bad620be9+continuous", 
>        "revisions_checked": 26, 
>        "source": "http://dustinphoto.iriscouch.com/gerrit/", 
>        "source_seq": 107068, 
>        "started_on": 1349309487, 
>        "target": "gerrit", 
>        "type": "replication", 
>        "updated_on": 1349310445
>    }, 
>    {
>        "checkpointed_source_seq": 107068, 
>        "continuous": true, 
>        "doc_id": "gerrit-from-prod", 
>        "doc_write_failures": 0, 
>        "docs_read": 17, 
>        "docs_written": 17, 
>        "missing_revisions_found": 17, 
>        "pid": "<0.11107.12>", 
>        "progress": 100, 
>        "replication_id": "b4ad5d3f2e5b78670e4c8364b18000e9+continuous", 
>        "revisions_checked": 26, 
>        "source": "http://dustinphoto.iriscouch.com/gerrit/", 
>        "source_seq": 107068, 
>        "started_on": 1349309488, 
>        "target": "gerrit", 
>        "type": "replication", 
>        "updated_on": 1349310445
>    }
> ]
> 
> 
> 	The replicator document for the latter, for example is this:
> 
> {
>   "_id": "gerrit-from-prod",
>   "_rev": "2235-36de10fb757581a1782dacbb26ee4809",
>   "source": "http://dustinphoto.iriscouch.com/gerrit",
>   "target": "gerrit",
>   "continuous": true,
>   "user_ctx": {
>       "roles": [
>           "_admin"
>       ]
>   },
>   "_replication_state_time": "2012-10-03T17:11:27-07:00",
>   "_replication_id": "b4ad5d3f2e5b78670e4c8364b18000e9",
>   "_replication_state": "triggered"
> }
> 
> 
> Begin forwarded message:
> 
>> From: Dustin Sallings <dustin@spy.net>
>> Subject: Re: replication problems
>> Date: June 15, 2012 0:10:04 PDT
>> To: dev@couchdb.apache.org
>> Reply-To: dev@couchdb.apache.org
>> 
>> 
>> On Jun 14, 2012, at 11:28 PM, Benoit Chesneau wrote:
>> 
>>> Ar you using _replicate or _replicator ? Anything interresting in logs?
>> 
>> 
>> 	I'm using _replicator (wonderful feature, I just kill the DB and everything goes
back the way I want it).
>> 
>> 	Hmm...  I do think I found some stuff digging through the logs.  This is the local
DB I noticed not doing its thing, although there were tons of errors all around this.  Looks
like the server got into some kind of bad state and sort of half-crashed.
>> 
>> 
>> [Thu, 14 Jun 2012 23:20:12 GMT] [error] [<0.133.0>] Replication `ae601df0373da82d1b4a9ff741c8ba18+continuous`
(`rpics` -> `rpics-processed`) failed: {{timeout,{gen_server,call,[<0.213.0>,{open_ref_count,<0.4
>> 42.0>}]}},
>> {gen_server,call,
>>            [couch_server,
>>             {open,<<"rpics">>,
>>                   [{user_ctx,{user_ctx,null,[<<"_admin">>],undefined}}]},
>>             infinity]}}
>> [Thu, 14 Jun 2012 23:20:25 GMT] [error] [<0.383.0>] ** Generic server <0.383.0>
terminating 
>> ** Last message in was {'EXIT',<0.384.0>,
>>                       {{timeout,
>>                         {gen_server,call,
>>                          [<0.213.0>,{open_ref_count,<0.442.0>}]}},
>>                        {gen_server,call,
>>                         [couch_server,
>>                          {open,<<"cbstats">>,
>>                           [{user_ctx,
>>                             {user_ctx,null,[<<"_admin">>],undefined}},
>>                            {user_ctx,
>>                             {user_ctx,null,[<<"_admin">>],undefined}}]},
>>                          infinity]}}}
>> 
>> ** When Server state == {state,<0.272.0>,<0.384.0>,20,
>>                        {httpdb,
>>                         "http://dustin:LOGGED_PASSWORD@single.couchbase.net/cbstats/",
>>                         nil,
>>                         [{"Accept","application/json"},
>>                          {"User-Agent","CouchDB/1.2.0"}],
>>                         30000,
>>                         [{socket_options,
>>                           [{keepalive,true},{nodelay,false}]}],
>>                         10,250,<0.273.0>,20},
>>                        {db,<0.288.0>,<0.289.0>,nil,<<"1339637701848579">>,
>>                         <0.290.0>,<0.286.0>,<0.367.0>,
>>                         {db_header,6,984356,0,
>>                          {860345646,{737369,975,640891414},59433736},
>>                          {860348005,738344,42056446},
>>                          {860352635,[],5737},
>>                          0,nil,nil,1000},
>>                         984356,
>>                         {btree,<0.286.0>,
>>                          {860345646,{737369,975,640891414},59433736},
>>                          #Fun<couch_db_updater.10.57960608>,
>>                          #Fun<couch_db_updater.11.57960608>,
>>                          #Fun<couch_btree.5.133731799>,
>>                          #Fun<couch_db_updater.12.57960608>,snappy},
>>                         {btree,<0.286.0>,
>>                          {860348005,738344,42056446},
>>                          #Fun<couch_db_updater.13.57960608>,
>>                          #Fun<couch_db_updater.14.57960608>,
>>                          #Fun<couch_btree.5.133731799>,
>>                          #Fun<couch_db_updater.15.57960608>,snappy},
>>                         {btree,<0.286.0>,
>>                          {860352635,[],5737},
>>                          #Fun<couch_btree.3.133731799>,
>>                          #Fun<couch_btree.4.133731799>,
>>                          #Fun<couch_btree.5.133731799>,nil,snappy},
>>                         984356,<<"cbstats">>,
>>                         "/Volumes/terror/db/couchdb/cbstats.couch",[],[],
>>                         nil,
>>                         {user_ctx,null,[<<"_admin">>],undefined},
>>                         nil,1000,
>>                         [before_header,after_header,on_file_open],
>>                         [{user_ctx,
>>                           {user_ctx,null,[<<"_admin">>],undefined}}],
>>                         snappy,nil,nil},
>>                        [],nil,nil,nil,
>>                        {rep_stats,0,0,0,0,0},
>>                        nil,<0.385.0>,
>>                        {batch,[],0}}
>> ** Reason for termination == 
>> ** {noproc,{gen_server,call,[<0.367.0>,{drop,<0.383.0>},infinity]}}
>> 
>> 
>> 
>> 
>> 	Scrolling to the beginning of the errors, I find this:
>> 
>> 
>> [Thu, 14 Jun 2012 23:15:54 GMT] [error] [<0.164.0>] Replication `543f76281e8d52d6ce5b51fddf0588e7+continuous`
(`photo` -> `http://dustin:*****@dustinphoto.couchone.com/photo/`) failed: source_db_down
>> [Thu, 14 Jun 2012 23:18:57 GMT] [info] [<0.358.0>] 127.0.0.1 - - GET /_all_dbs
200
>> [Thu, 14 Jun 2012 23:19:52 GMT] [error] [<0.289.0>] ** Generic server <0.289.0>
terminating 
>> ** Last message in was {update_docs,<0.272.0>,[],
>>                          [{{doc,
>>                                <<"_local/c4cc070f896d7267e52ba012856fed4b">>,
>>                                {0,[<<"346185">>]},
>>                                {[{<<"session_id">>,
>>                                   <<"9fb3475683d44bb1e151031dd42cc59f">>},
>>                                  {<<"source_last_seq">>,1419004},
>>                                  {<<"replication_id_version">>,2},
>>                                  {<<"history">>,
>>                                   [{[{<<"session_id">>,
>>                                       <<"9fb3475683d44bb1e151031dd42cc59f">>},
>>                                      {<<"start_time">>,
>>                                       <<"Thu, 14 Jun 2012 01:35:02 GMT">>},
>>                                      {<<"end_time">>,
>>                                       <<"Thu, 14 Jun 2012 23:15:29 GMT">>},
>>                                      {<<"start_last_seq">>,1410146},
>>                                      {<<"end_last_seq">>,1419004},
>>                                      {<<"recorded_seq">>,1419004},
>>                                      {<<"missing_checked">>,8100},
>>                                      {<<"missing_found">>,8100},
>>                                      {<<"docs_read">>,8100},
>>                                      {<<"docs_written">>,8100},
>>                                      {<<"doc_write_failures">>,0}]},
>>                                    {[{<<"session_id">>,
>>                                       <<"3edd7c50327eab7ec0768451e34efa8b">>},
>>                                      {<<"start_time">>,
>>                                       <<"Tue, 12 Jun 2012 05:51:17 GMT">>},
>>                                      {<<"end_time">>,
>>                                       <<"Tue, 12 Jun 2012 13:02:37 GMT">>},
>>                                      {<<"start_last_seq">>,1407186},
>>                                      {<<"end_last_seq">>,1410146},
>>                                      {<<"recorded_seq">>,1410146},
>>                                      {<<"missing_checked">>,2583},
>>                                      {<<"missing_found">>,2577},
>>                                      {<<"docs_read">>,2577},
>>                                      {<<"docs_written">>,2577},
>>                                      {<<"doc_write_failures">>,0}]},
>>                                    {[{<<"session_id">>,
>>                                       <<"172de62044281a01b1584a9d099f42af">>},
>>                                      {<<"start_time">>,
>>                                       <<"Mon, 11 Jun 2012 03:40:11 GMT">>},
>>                                      {<<"end_time">>,
>>                                       <<"Mon, 11 Jun 2012 15:16:24 GMT">>},
>>                                      {<<"start_last_seq">>,1405428},
>>                                      {<<"end_last_seq">>,1407186},
>>                                      {<<"recorded_seq">>,1407186},
>>                                      {<<"missing_checked">>,1721},
>>                                      {<<"missing_found">>,1721},
>>                                      {<<"docs_read">>,1721},
>>                                      {<<"docs_written">>,1721},
>>                                      {<<"doc_write_failures">>,0}]},
>>                                    {[{<<"session_id">>,
>>                                       <<"e60a126a2036c5fab00a1249101820c8">>},
>>                                      {<<"start_time">>,
>>                                       <<"Sat, 09 Jun 2012 07:47:22 GMT">>},
>>                                      {<<"end_time">>,
>>                                       <<"Sun, 10 Jun 2012 21:16:20 GMT">>},
>>                                      {<<"start_last_seq">>,1386289},
>>                                      {<<"end_last_seq">>,1405428},
>>                                      {<<"recorded_seq">>,1405428},
>>                                      {<<"missing_checked">>,16977},
>>                                      {<<"missing_found">>,16977},
>>                                      {<<"docs_read">>,16977},
>>                                      {<<"docs_written">>,16977},
>>                                      {<<"doc_write_failures">>,0}]},
>>                                    {[{<<"session_id">>,
>>                                       <<"ef3e4333d340dcf73ddfa3fe8c720042">>},
>>                                      {<<"start_time">>,
>>                                       <<"Mon, 04 Jun 2012 02:39:44 GMT">>},
>>                                      {<<"end_time">>,
>>                                       <<"Mon, 04 Jun 2012 12:35:50 GMT">>},
>>                                      {<<"start_last_seq">>,1384738},
>>                                      {<<"end_last_seq">>,1386289},
>>                                      {<<"recorded_seq">>,1386289},
>>                                      {<<"missing_checked">>,1551},
>>                                      {<<"missing_found">>,1550},
>>                                      {<<"docs_read">>,1550},
>>                                      {<<"docs_written">>,1550},
>>                                      {<<"doc_write_failures">>,0}]},
>>                                    {[{<<"session_id">>,
>>                                       <<"d5123a3caf462794aaf5a47be1bb3b6e">>},
>>                                      {<<"start_time">>,
>>                                       <<"Wed, 30 May 2012 20:41:43 GMT">>},
>>                                      {<<"end_time">>,
>>                                       <<"Mon, 04 Jun 2012 02:37:33 GMT">>},
>>                                      {<<"start_last_seq">>,1372404},
>>                                      {<<"end_last_seq">>,1384738},
>>                                      {<<"recorded_seq">>,1384738},
>>                                      {<<"missing_checked">>,12334},
>>                                      {<<"missing_found">>,12333},
>>                                      {<<"docs_read">>,12333},
>>                                      {<<"docs_written">>,12333},
>>                                      {<<"doc_write_failures">>,0}]},
>>                                    {[{<<"session_id">>,
>>                                       <<"52a16e8832f70dc094f6fff5e9b7d75b">>},
>>                                      {<<"start_time">>,
>>                                       <<"Sun, 27 May 2012 23:36:41 GMT">>},
>>                                      {<<"end_time">>,
>>                                       <<"Wed, 30 May 2012 20:40:14 GMT">>},
>>                                      {<<"start_last_seq">>,1361049},
>>                                      {<<"end_last_seq">>,1372404},
>>                                      {<<"recorded_seq">>,1372404},
>>                                      {<<"missing_checked">>,11355},
>>                                      {<<"missing_found">>,11355},
>>                                      {<<"docs_read">>,11355},
>>                                      {<<"docs_written">>,11355},
>>                                      {<<"doc_write_failures">>,0}]},
>> [...lots of these...]
>> 
>>                                [],false,[]},
>>                            #Ref<0.0.15.159973>}],
>>                          false,false}
>> ** When Server state == {db,<0.288.0>,<0.289.0>,nil,<<"1339637701848579">>,
>>                           <0.290.0>,<0.286.0>,<0.367.0>,
>>                           {db_header,6,992456,0,
>>                               {943280145,{744250,975,647546641},60017672},
>>                               {943282327,745225,42485979},
>>                               {943267963,[],5753},
>>                               0,nil,nil,1000},
>>                           992456,
>>                           {btree,<0.286.0>,
>>                               {943280145,{744250,975,647546641},60017672},
>>                               #Fun<couch_db_updater.10.57960608>,
>>                               #Fun<couch_db_updater.11.57960608>,
>>                               #Fun<couch_btree.5.133731799>,
>>                               #Fun<couch_db_updater.12.57960608>,snappy},
>>                           {btree,<0.286.0>,
>>                               {943282327,745225,42485979},
>>                               #Fun<couch_db_updater.13.57960608>,
>>                               #Fun<couch_db_updater.14.57960608>,
>>                               #Fun<couch_btree.5.133731799>,
>>                               #Fun<couch_db_updater.15.57960608>,snappy},
>>                           {btree,<0.286.0>,
>>                               {943267963,[],5753},
>>                               #Fun<couch_btree.3.133731799>,
>>                               #Fun<couch_btree.4.133731799>,
>>                               #Fun<couch_btree.5.133731799>,nil,snappy},
>>                           992456,<<"cbstats">>,
>>                           "/Volumes/terror/db/couchdb/cbstats.couch",[],[],
>>                           nil,
>>                           {user_ctx,null,[],undefined},
>>                           nil,1000,
>>                           [before_header,after_header,on_file_open],
>>                           [{user_ctx,
>>                                {user_ctx,null,[<<"_admin">>],undefined}}],
>>                           snappy,nil,nil}
>> ** Reason for termination == 
>> ** {timeout,
>>      {gen_server,call,
>>          [<0.288.0>,
>>           {db_updated,
>>               {db,<0.288.0>,<0.289.0>,nil,<<"1339637701848579">>,<0.290.0>,
>>                   <0.286.0>,<0.367.0>,
>>                   {db_header,6,992456,0,
>>                       {943280145,{744250,975,647546641},60017672},
>>                       {943282327,745225,42485979},
>>                       {943267963,[],5753},
>>                       0,nil,nil,1000},
>>                   992456,
>>                   {btree,<0.286.0>,
>>                       {943280145,{744250,975,647546641},60017672},
>>                       #Fun<couch_db_updater.10.57960608>,
>>                       #Fun<couch_db_updater.11.57960608>,
>>                       #Fun<couch_btree.5.133731799>,
>>                       #Fun<couch_db_updater.12.57960608>,snappy},
>>                   {btree,<0.286.0>,
>>                       {943282327,745225,42485979},
>>                       #Fun<couch_db_updater.13.57960608>,
>>                       #Fun<couch_db_updater.14.57960608>,
>>                       #Fun<couch_btree.5.133731799>,
>>                       #Fun<couch_db_updater.15.57960608>,snappy},
>>                   {btree,<0.286.0>,
>>                       {943284347,[],5756},
>>                       #Fun<couch_btree.3.133731799>,
>>                       #Fun<couch_btree.4.133731799>,
>>                       #Fun<couch_btree.5.133731799>,nil,snappy},
>>                   992456,<<"cbstats">>,
>>                   "/Volumes/terror/db/couchdb/cbstats.couch",[],[],nil,
>>                   {user_ctx,null,[],undefined},
>>                   #Ref<0.0.15.160107>,1000,
>>                   [before_header,after_header,on_file_open],
>>                   [{user_ctx,{user_ctx,null,[<<"_admin">>],undefined}}],
>>                   snappy,nil,nil}}]}}
>> 
>> 
>> 
>> 
>> -- 
>> dustin sallings
>> 
>> 
>> 
> 
> -- 
> dustin sallings
> 
> 
> 


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