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This behavior (defaulting to 27017) is different from previous releases:
- 2.4.14:
$ mongos --configdb 127.0.0.1
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Tue Nov 10 07:18:26.033 warning: running with 1 config server should be done only for testing purposes and is not recommended for production
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Tue Nov 10 07:18:26.035 [mongosMain] MongoS version 2.4.14 starting: pid=30948 port=27017 64-bit host=tab (--help for usage)
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Tue Nov 10 07:18:26.035 [mongosMain] git version: 05bebf9ab15511a71bfbded684bb226014c0a553
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Tue Nov 10 07:18:26.035 [mongosMain] build info: Linux ip-10-154-253-119 2.6.21.7-2.ec2.v1.2.fc8xen #1 SMP Fri Nov 20 17:48:28 EST 2009 x86_64 BOOST_LIB_VERSION=1_49
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Tue Nov 10 07:18:26.035 [mongosMain] options: { configdb: "127.0.0.1" }
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Tue Nov 10 07:18:26.035 [mongosMain] warning: couldn't check dbhash on config server 127.0.0.1:27019 :: caused by :: 11002 socket exception [CONNECT_ERROR] server [127.0.0.1:27019] mongos connectionpool error: couldn't connect to server 127.0.0.1:27019
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Tue Nov 10 07:18:26.035 [mongosMain] ERROR: error upgrading config database to v4 :: caused by :: could not load config version for upgrade :: caused by :: 11002 socket exception [CONNECT_ERROR] server [127.0.0.1:27019] mongos connectionpool error: couldn't connect to server 127.0.0.1:27019
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- 2.6.11:
$ mongos --configdb 127.0.0.1
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2015-11-10T07:18:06.766-0500 warning: running with 1 config server should be done only for testing purposes and is not recommended for production
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2015-11-10T07:18:06.767-0500 [mongosMain] MongoS version 2.6.11 starting: pid=30930 port=27017 64-bit host=tab (--help for usage)
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2015-11-10T07:18:06.767-0500 [mongosMain] db version v2.6.11
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2015-11-10T07:18:06.767-0500 [mongosMain] git version: d00c1735675c457f75a12d530bee85421f0c5548
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2015-11-10T07:18:06.767-0500 [mongosMain] build info: Linux build4.ny.cbi.10gen.cc 2.6.32-431.3.1.el6.x86_64 #1 SMP Fri Jan 3 21:39:27 UTC 2014 x86_64 BOOST_LIB_VERSION=1_49
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2015-11-10T07:18:06.767-0500 [mongosMain] allocator: tcmalloc
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2015-11-10T07:18:06.767-0500 [mongosMain] options: { sharding: { configDB: "127.0.0.1" } }
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2015-11-10T07:18:06.768-0500 [mongosMain] warning: Failed to connect to 127.0.0.1:27019, reason: errno:111 Connection refused
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2015-11-10T07:18:06.768-0500 [mongosMain] warning: couldn't check dbhash on config server 127.0.0.1:27019 :: caused by :: 11002 socket exception [CONNECT_ERROR] server [127.0.0.1:27019] connection pool error: couldn't connect to server 127.0.0.1:27019 (127.0.0.1), connection attempt failed
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2015-11-10T07:18:06.768-0500 [mongosMain] warning: Failed to connect to 127.0.0.1:27019, reason: errno:111 Connection refused
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2015-11-10T07:18:06.768-0500 warning: Failed to connect to 127.0.0.1:27019, reason: errno:111 Connection refused
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2015-11-10T07:18:06.768-0500 warning: couldn't check dbhash on config server 127.0.0.1:27019 :: caused by :: 11002 socket exception [CONNECT_ERROR] server [127.0.0.1:27019] connection pool error: couldn't connect to server 127.0.0.1:27019 (127.0.0.1), connection attempt failed
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2015-11-10T07:18:06.768-0500 [mongosMain] ERROR: error upgrading config database to v5 :: caused by :: could not load config version for upgrade :: caused by :: connection pool: connect failed 127.0.0.1:27019 : couldn't connect to server 127.0.0.1:27019 (127.0.0.1), connection attempt failed
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- 3.0.7:
$ mongos --configdb 127.0.0.1
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2015-11-10T07:17:14.593-0500 W SHARDING running with 1 config server should be done only for testing purposes and is not recommended for production
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2015-11-10T07:17:14.595-0500 I SHARDING [mongosMain] MongoS version 3.0.7 starting: pid=30863 port=27017 64-bit host=tab (--help for usage)
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2015-11-10T07:17:14.595-0500 I CONTROL [mongosMain] db version v3.0.7
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2015-11-10T07:17:14.595-0500 I CONTROL [mongosMain] git version: 6ce7cbe8c6b899552dadd907604559806aa2e9bd
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2015-11-10T07:17:14.595-0500 I CONTROL [mongosMain] build info: Linux build16.ny.cbi.10gen.cc 2.6.32-431.3.1.el6.x86_64 #1 SMP Fri Jan 3 21:39:27 UTC 2014 x86_64 BOOST_LIB_VERSION=1_49
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2015-11-10T07:17:14.595-0500 I CONTROL [mongosMain] allocator: tcmalloc
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2015-11-10T07:17:14.595-0500 I CONTROL [mongosMain] options: { sharding: { configDB: "127.0.0.1" } }
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2015-11-10T07:17:14.595-0500 W NETWORK [mongosMain] Failed to connect to 127.0.0.1:27019, reason: errno:111 Connection refused
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2015-11-10T07:17:14.595-0500 W SHARDING [mongosMain] couldn't check dbhash on config server 127.0.0.1:27019 :: caused by :: 11002 socket exception [CONNECT_ERROR] server [127.0.0.1:27019] connection pool error: couldn't connect to server 127.0.0.1:27019 (127.0.0.1), connection attempt failed
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2015-11-10T07:17:14.595-0500 W NETWORK [mongosMain] Failed to connect to 127.0.0.1:27019, reason: errno:111 Connection refused
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2015-11-10T07:17:14.595-0500 W NETWORK Failed to connect to 127.0.0.1:27019, reason: errno:111 Connection refused
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2015-11-10T07:17:14.595-0500 E - [mongosMain] error upgrading config database to v6 :: caused by :: could not load config version for upgrade :: caused by :: connection pool: connect failed 127.0.0.1:27019 : couldn't connect to server 127.0.0.1:27019 (127.0.0.1), connection attempt failed
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- 3.2.0-rc2:
$ mongos --configdb 127.0.0.1
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2015-11-10T07:17:45.679-0500 W SHARDING [main] Running a sharded cluster with fewer than 3 config servers should only be done for testing purposes and is not recommended for production.
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2015-11-10T07:17:45.682-0500 I SHARDING [mongosMain] MongoS version 3.2.0-rc2 starting: pid=30882 port=27017 64-bit host=tab (--help for usage)
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2015-11-10T07:17:45.682-0500 I CONTROL [mongosMain] db version v3.2.0-rc2
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2015-11-10T07:17:45.682-0500 I CONTROL [mongosMain] git version: 8a3acb42742182c5e314636041c2df368232bbc5
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2015-11-10T07:17:45.682-0500 I CONTROL [mongosMain] allocator: tcmalloc
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2015-11-10T07:17:45.682-0500 I CONTROL [mongosMain] modules: none
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2015-11-10T07:17:45.682-0500 I CONTROL [mongosMain] build environment:
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2015-11-10T07:17:45.682-0500 I CONTROL [mongosMain] distarch: x86_64
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2015-11-10T07:17:45.682-0500 I CONTROL [mongosMain] target_arch: x86_64
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2015-11-10T07:17:45.682-0500 I CONTROL [mongosMain] options: { sharding: { configDB: "127.0.0.1" } }
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2015-11-10T07:17:45.682-0500 I SHARDING [mongosMain] Updating config server connection string to: 127.0.0.1:27017
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2015-11-10T07:17:45.683-0500 W NETWORK [mongosMain] Failed to connect to 127.0.0.1:27017, reason: errno:111 Connection refused
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2015-11-10T07:17:45.683-0500 W SHARDING [mongosMain] couldn't check dbhash on config server 127.0.0.1:27017 :: caused by :: 13328 connection pool: connect failed 127.0.0.1:27017 : couldn't connect to server 127.0.0.1:27017, connection attempt failed
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2015-11-10T07:17:45.683-0500 W NETWORK [mongosMain] Failed to connect to 127.0.0.1:27017, reason: errno:111 Connection refused
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2015-11-10T07:17:45.683-0500 W NETWORK [thread1] Failed to connect to 127.0.0.1:27017, reason: errno:111 Connection refused
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2015-11-10T07:17:45.683-0500 W SHARDING [thread1] couldn't check dbhash on config server 127.0.0.1:27017 :: caused by :: 13328 connection pool: connect failed 127.0.0.1:27017 : couldn't connect to server 127.0.0.1:27017, connection attempt failed
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2015-11-10T07:17:45.683-0500 E SHARDING [mongosMain] uncaught DBException in mongos main: 13328 connection pool: connect failed 127.0.0.1:27017 : couldn't connect to server 127.0.0.1:27017, connection attempt failed
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However when I start up a config server it defaults to 27019 as documented:
- CSRS (as per release notes, but omitting the port):
$ mongod --configsvr --replSet cfg1 --dbpath cfg
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2015-11-10T07:22:15.950-0500 I CONTROL [initandlisten] MongoDB starting : pid=31110 port=27019 dbpath=cfg 64-bit host=tab
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2015-11-10T07:22:15.950-0500 I CONTROL [initandlisten] db version v3.2.0-rc2
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2015-11-10T07:22:15.950-0500 I CONTROL [initandlisten] git version: 8a3acb42742182c5e314636041c2df368232bbc5
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2015-11-10T07:22:15.950-0500 I CONTROL [initandlisten] allocator: tcmalloc
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2015-11-10T07:22:15.950-0500 I CONTROL [initandlisten] modules: none
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2015-11-10T07:22:15.950-0500 I CONTROL [initandlisten] build environment:
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2015-11-10T07:22:15.950-0500 I CONTROL [initandlisten] distarch: x86_64
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2015-11-10T07:22:15.950-0500 I CONTROL [initandlisten] target_arch: x86_64
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2015-11-10T07:22:15.950-0500 I CONTROL [initandlisten] options: { replication: { replSet: "cfg1" }, sharding: { clusterRole: "configsvr" }, storage: { dbPath: "cfg" } }
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2015-11-10T07:22:15.964-0500 I STORAGE [initandlisten] wiredtiger_open config: create,cache_size=37G,session_max=20000,eviction=(threads_max=4),config_base=false,statistics=(fast),log=(enabled=true,archive=true,path=journal,compressor=snappy),file_manager=(close_idle_time=100000),checkpoint=(wait=60,log_size=2GB),statistics_log=(wait=0),
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2015-11-10T07:22:16.100-0500 I REPL [initandlisten] Did not find local voted for document at startup; NoMatchingDocument Did not find replica set lastVote document in local.replset.election
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2015-11-10T07:22:16.100-0500 I REPL [initandlisten] Did not find local replica set configuration document at startup; NoMatchingDocument Did not find replica set configuration document in local.system.replset
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2015-11-10T07:22:16.100-0500 I NETWORK [HostnameCanonicalizationWorker] Starting hostname canonicalization worker
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2015-11-10T07:22:16.100-0500 I FTDC [initandlisten] Starting full-time diagnostic data capture with directory 'cfg/diagnostic.data'
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2015-11-10T07:22:16.124-0500 I NETWORK [initandlisten] waiting for connections on port 27019
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- SCCC:
$ mongod --configsvr --configsvrMode sccc --dbpath cfg
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2015-11-10T07:26:35.668-0500 I CONTROL [initandlisten] MongoDB starting : pid=31287 port=27019 dbpath=cfg master=1 64-bit host=tab
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2015-11-10T07:26:35.668-0500 I CONTROL [initandlisten] db version v3.2.0-rc2
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2015-11-10T07:26:35.668-0500 I CONTROL [initandlisten] git version: 8a3acb42742182c5e314636041c2df368232bbc5
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2015-11-10T07:26:35.668-0500 I CONTROL [initandlisten] allocator: tcmalloc
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2015-11-10T07:26:35.668-0500 I CONTROL [initandlisten] modules: none
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2015-11-10T07:26:35.668-0500 I CONTROL [initandlisten] build environment:
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2015-11-10T07:26:35.668-0500 I CONTROL [initandlisten] distarch: x86_64
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2015-11-10T07:26:35.668-0500 I CONTROL [initandlisten] target_arch: x86_64
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2015-11-10T07:26:35.668-0500 I CONTROL [initandlisten] options: { sharding: { clusterRole: "configsvr", configsvrMode: "sccc" }, storage: { dbPath: "cfg" } }
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2015-11-10T07:26:35.682-0500 I STORAGE [initandlisten] wiredtiger_open config: create,cache_size=37G,session_max=20000,eviction=(threads_max=4),config_base=false,statistics=(fast),log=(enabled=true,archive=true,path=journal,compressor=snappy),file_manager=(close_idle_time=100000),checkpoint=(wait=60,log_size=2GB),statistics_log=(wait=0),
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2015-11-10T07:26:35.802-0500 I REPL [initandlisten] ******
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2015-11-10T07:26:35.802-0500 I REPL [initandlisten] creating replication oplog of size: 5MB...
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2015-11-10T07:26:35.811-0500 I STORAGE [initandlisten] Starting WiredTigerRecordStoreThread local.oplog.$main
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2015-11-10T07:26:35.811-0500 I STORAGE [initandlisten] Scanning the oplog to determine where to place markers for when to truncate
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2015-11-10T07:26:35.903-0500 I REPL [initandlisten] ******
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2015-11-10T07:26:35.903-0500 I NETWORK [HostnameCanonicalizationWorker] Starting hostname canonicalization worker
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2015-11-10T07:26:35.903-0500 I FTDC [initandlisten] Starting full-time diagnostic data capture with directory 'cfg/diagnostic.data'
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2015-11-10T07:26:35.945-0500 I NETWORK [initandlisten] waiting for connections on port 27019
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If there's no pilot error above then I'd say this is very confusing: why would we default to listen to one port and connect to another? And if we decide to do this, is there any documentation that may need updating?
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