Using mlaunch with 3.4

[Steve-Hand]

Using MongoDB version 3.4.0-rc2.

$ mlaunch init --dir /data/SF-388794 --sharded tic tac toe --single --port 28000
launching: mongod on port 28001
launching: mongod on port 28002
launching: mongod on port 28003
launching: config server on port 28004
launching: mongos on port 28000
can't start process, return code 2. tried to launch: mongos --logpath /data/SF-388794/mongos.log --port 28000 --configdb Stevens-MacBook-Pro-2.local:28004 --logappend   --fork

$ psmongo 
USER              PID  %CPU %MEM      VSZ    RSS   TT  STAT STARTED      TIME COMMAND
shand           36504   0.3  0.1  2634344  20812   ??  S     8:35AM   0:05.23 mongod --dbpath /data/SF-388794/config/db --logpath /data/SF-388794/config/mongod.log --port 28004 --logappend --fork --configsvr
shand           36498   0.3  0.1  2627616  19704   ??  S     8:35AM   0:05.02 mongod --dbpath /data/SF-388794/tac/db --logpath /data/SF-388794/tac/mongod.log --port 28002 --logappend --fork --shardsvr
shand           36495   0.4  0.1  2627616  19692   ??  S     8:35AM   0:05.08 mongod --dbpath /data/SF-388794/tic/db --logpath /data/SF-388794/tic/mongod.log --port 28001 --logappend --fork --shardsvr
shand           36501   0.3  0.1  2627616  19788   ??  S     8:35AM   0:05.06 mongod --dbpath /data/SF-388794/toe/db --logpath /data/SF-388794/toe/mongod.log --port 28003 --logappend --fork --shardsvr

$ mongos --logpath /data/SF-388794/mongos.log --port 28000 --configdb Stevens-MacBook-Pro-2.local:28004 --logappend
BadValue: configdb supports only replica set connection string
try 'mongos --help' for more information

second try

$ mlaunch init --dir /data/SF-388794 --sharded tic tac toe --replicaset  --port 28000 --config 3     
launching: mongod on port 28001
launching: mongod on port 28002
launching: mongod on port 28003
launching: mongod on port 28004
launching: mongod on port 28005
launching: mongod on port 28006
launching: mongod on port 28007
launching: mongod on port 28008
launching: mongod on port 28009
launching: config server on port 28010
launching: config server on port 28011
launching: config server on port 28012
replica set 'tic' initialized.
replica set 'tac' initialized.
replica set 'toe' initialized.
launching: mongos on port 28000
can't start process, return code 2. tried to launch: mongos --logpath /data/SF-388794/mongos.log --port 28000 --configdb Stevens-MacBook-Pro-2.local:28010,Stevens-MacBook-Pro-2.local:28011,Stevens-MacBook-Pro-2.local:28012 --logappend   --fork

$ psmongo
USER              PID  %CPU %MEM      VSZ    RSS   TT  STAT STARTED      TIME COMMAND 
shand           37038   0.4  0.1  2624888  18256   ??  S     8:53AM   0:00.24 mongod --dbpath /data/SF-388794/config1/db --logpath /data/SF-388794/config1/mongod.log --port 28010 --logappend --fork --configsvr
shand           37041   0.5  0.1  2625048  18308   ??  S     8:53AM   0:00.24 mongod --dbpath /data/SF-388794/config2/db --logpath /data/SF-388794/config2/mongod.log --port 28011 --logappend --fork --configsvr
shand           37044   0.5  0.1  2628112  20040   ??  S     8:53AM   0:00.25 mongod --dbpath /data/SF-388794/config3/db --logpath /data/SF-388794/config3/mongod.log --port 28012 --logappend --fork --configsvr
shand           37020   0.8  0.1  2733108  22416   ??  S     8:52AM   0:00.32 mongod --replSet tac --dbpath /data/SF-388794/tac/rs1/db --logpath /data/SF-388794/tac/rs1/mongod.log --port 28004 --logappend --fork --shardsvr
shand           37023   0.8  0.1  2665992  22240   ??  S     8:52AM   0:00.31 mongod --replSet tac --dbpath /data/SF-388794/tac/rs2/db --logpath /data/SF-388794/tac/rs2/mongod.log --port 28005 --logappend --fork --shardsvr
shand           37026   0.9  0.1  2665992  22384   ??  S     8:52AM   0:00.30 mongod --replSet tac --dbpath /data/SF-388794/tac/rs3/db --logpath /data/SF-388794/tac/rs3/mongod.log --port 28006 --logappend --fork --shardsvr
shand           37011   0.8  0.1  2733108  22452   ??  S     8:52AM   0:00.31 mongod --replSet tic --dbpath /data/SF-388794/tic/rs1/db --logpath /data/SF-388794/tic/rs1/mongod.log --port 28001 --logappend --fork --shardsvr
shand           37014   0.8  0.1  2666516  22400   ??  S     8:52AM   0:00.31 mongod --replSet tic --dbpath /data/SF-388794/tic/rs2/db --logpath /data/SF-388794/tic/rs2/mongod.log --port 28002 --logappend --fork --shardsvr
shand           37017   0.7  0.1  2665992  22468   ??  S     8:52AM   0:00.31 mongod --replSet tic --dbpath /data/SF-388794/tic/rs3/db --logpath /data/SF-388794/tic/rs3/mongod.log --port 28003 --logappend --fork --shardsvr
shand           37029   0.7  0.1  2733108  22080   ??  S     8:53AM   0:00.29 mongod --replSet toe --dbpath /data/SF-388794/toe/rs1/db --logpath /data/SF-388794/toe/rs1/mongod.log --port 28007 --logappend --fork --shardsvr
shand           37032   0.6  0.1  2665992  22228   ??  S     8:53AM   0:00.30 mongod --replSet toe --dbpath /data/SF-388794/toe/rs2/db --logpath /data/SF-388794/toe/rs2/mongod.log --port 28008 --logappend --fork --shardsvr
shand           37035   0.8  0.1  2665992  22420   ??  S     8:53AM   0:00.30 mongod --replSet toe --dbpath /data/SF-388794/toe/rs3/db --logpath /data/SF-388794/toe/rs3/mongod.log --port 28009 --logappend --fork --shardsvr

Try starting explicitly using the "--csrs" parameter

$ killall mongod       
$ rm -fr /data/SF-388794                                                                        
$ mkdir /data/SF-388794 

$ mlaunch init --dir /data/SF-388794 --sharded tic tac toe --replicaset  --port 28000 --config 3 --csrs
 
 * The '--csrs' option requires MongoDB version 3.2.0 or greater, the current version is 0-rc2.

There are two problems.

1. Because of the version check issue, mlaunch version check fails silently and leads to unexpected side effects #451 , mlaunch does not automatically use the "-csrs" parameter, which is required because this is version 3.4., and create a CSRS cluster.
2. If we are using 3.4, then we have to use the the replica set connection string parameter for the mongos router

For example:

--configdb <replicasetName>/<config1>,<config2>...