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From "Gunther Gruber (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (COUCHDB-2484) replication crashes
Date Tue, 02 Dec 2014 09:19:12 GMT

    [ https://issues.apache.org/jira/browse/COUCHDB-2484?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14231200#comment-14231200
] 

Gunther Gruber commented on COUCHDB-2484:
-----------------------------------------

I reviewed the Version Number it is 1.2. Please apologize if it is fixed in upstream and refers
to an old bug. Nevertheless we have a backup system wich runs on 1.6.1. with the same problem.






> replication crashes
> -------------------
>
>                 Key: COUCHDB-2484
>                 URL: https://issues.apache.org/jira/browse/COUCHDB-2484
>             Project: CouchDB
>          Issue Type: Bug
>      Security Level: public(Regular issues) 
>          Components: Database Core
>    Affects Versions: 1.x.x
>            Reporter: Gunther Gruber
>
> We are Using Couchdb Version 1.2.0 with 8.3T of data, biggest Database ist 2.1T.  At
this moment we switch to  new hardware with more storage space. We copied the files with rsync
and started the replication. 
> One system is already in sync, the other is doing the replication.
> I appreciate that besides the errors in the log, the first system is now in sync.
> The log looks like the following
> Retrying POST request to http://replication:XXXX/database/_revs_diff in 0.5 seconds due
to error req_timedout
> and then
>  Mon, 01 Dec 2014 13:00:28 GMT] [error] [<0.27044.1>] ** Generic server <0.27044.1>
terminating 
> ** Last message in was {'EXIT',<0.26965.1>,killed}
> ** When Server state == {state,<0.26965.1>,<0.27045.1>,40,
>                             {httpdb,
>                                 "http://replication:XXX@XXX.5984/sm_chemie/",
>                                 nil,
>                                 [{"Accept","application/json"},
>                                  {"User-Agent","CouchDB/1.2.0"}],
>                                 30000,
>                                 [{socket_options,
>                                      [{recbuf,262144},
>                                       {sndbuf,262144},
>                                       {nodelay,true},
>                                       {keepalive,true}]}],
>                                 10,250,<0.26966.1>,40},
>                             {httpdb,
>                                 "http://replication:XXX@XXX:5984/sm_chemie/",
>                                 nil,
>                                 [{"Accept","application/json"},
>                                  {"User-Agent","CouchDB/1.2.0"}],
>                                 30000,
>                                 [{socket_options,
>                                      [{recbuf,262144},
>                                       {sndbuf,262144},
>                                       {nodelay,true},
>                                       {keepalive,true}]}],
>                                 10,250,<0.26968.1>,40},
>                             [],nil,nil,nil,
>                             {rep_stats,0,0,0,0,0},
>                             nil,nil,
>                             {batch,[],0}}
> ** Reason for termination == 
> ** killed
> [Mon, 01 Dec 2014 13:00:28 GMT] [error] [<0.27042.1>] {error_report,<0.31.0>,
>                        {<0.27042.1>,crash_report,
>                         [[{initial_call,
>                            {couch_replicator_worker,init,['Argument__1']}},
>                           {pid,<0.27042.1>},
>                           {registered_name,[]},
>                           {error_info,
>                            {exit,killed,
>                             [{gen_server,terminate,6,
>                               [{file,"gen_server.erl"},{line,747}]},
>                              {proc_lib,init_p_do_apply,3,
>                               [{file,"proc_lib.erl"},{line,227}]}]}},
>                           {ancestors,
>                            [<0.26965.1>,couch_rep_sup,couch_primary_services,
>                             couch_server_sup,<0.32.0>]},
>                           {messages,[]},
>                           {links,[<0.27043.1>]},
>                           {dictionary,
>                            [{last_stats_report,{1417,438797,704976}}]},
>                           {trap_exit,true},
>                           {status,running},
>                           {heap_size,377},
>                           {stack_size,24},
>                           {reductions,372}],
>                          []]}}
> It seems to me like a timeout and the replication task then exits. I allready played
arround with the configuration setting with no succes. I can provide more information if needed.
> /etc/couchdb/local.d/001-user_config.ini
> [couchdb]
> file_compression = snappy
> max_dbs_open = 400
> [httpd]
> bind_address = ::
> server_options = [{backlog, 128}, {acceptor_pool_size, 16}]
> socket_options = [{recbuf, 262144}, {sndbuf, 262144}, {nodelay, true}, {keepalive, true}]
> [couch_httpd_auth]
> secret = 
> [log_level_by_module]
> couch_httpd = warning
> couch_replicator = debug
> couch_query_servers = warning 
> [daemons]
> httpsd = {couch_httpd, start_link, [https]}
> [ssl]
> cert_file = /etc/couchdb/ssl/certs/couchdb-couch1.prime.adns.de.pem
> key_file =  /etc/couchdb/ssl/private/couchdb-couch1.prime.adns.de.pem
> verify_ssl_certificates = false
> [replicator]
> worker_batch_size = 2000
> worker_processes = 40
> http_connections = 40
> socket_options = [{recbuf, 262144}, {sndbuf, 262144}, {nodelay, true}, {keepalive, true}]
> /etc/default/couchdb
> # Sourced by init script for configuration.
> COUCHDB_USER=couchdb
> COUCHDB_STDOUT_FILE=/dev/null
> COUCHDB_STDERR_FILE=/dev/null
> COUCHDB_RESPAWN_TIMEOUT=5
> COUCHDB_OPTIONS=
> # 32 Threads to handle I/O
> export ERL_FLAGS="+A 32"
> # 8192 open files
> export ERL_MAX_PORTS=8192
> ulimit -n 8192
> Current solution is to restart couchdb every other hour



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