Install 3.2 for centos/6

& amazon linux

/etc/yum.repos.d/mongodb.repo

[monbodb]
name=MongoDB Repository
baseurl=https://repo.mongodb.org/yum/redhat/6/mongodb-org/3.2/x86_64/
gpgcheck=1
enabled=1
gpgkey=https://www.mongodb.org/static/pgp/server-3.2.asc

Disable THP

/etc/init.d/disable-transparent-hugepages

#!/bin/bash
### BEGIN INIT INFO
# Provides:          disable-transparent-hugepages
# Required-Start:    $local_fs
# Required-Stop:
# X-Start-Before:    mongod mongodb-mms-automation-agent
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: Disable Linux transparent huge pages
# Description:       Disable Linux transparent huge pages, to improve
#                    database performance.
### END INIT INFO

case $1 in
  start)
    if [ -d /sys/kernel/mm/transparent_hugepage ]; then
      thp_path=/sys/kernel/mm/transparent_hugepage
    elif [ -d /sys/kernel/mm/redhat_transparent_hugepage ]; then
      thp_path=/sys/kernel/mm/redhat_transparent_hugepage
    else
      return 0
    fi

    echo 'never' > ${thp_path}/enabled
    echo 'never' > ${thp_path}/defrag

    re='^[0-1]+$'
    if [[ $(cat ${thp_path}/khugepaged/defrag) =~ $re ]]
    then
      # RHEL 7
      echo 0  > ${thp_path}/khugepaged/defrag
    else
      # RHEL 6
      echo 'no' > ${thp_path}/khugepaged/defrag
    fi

    unset re
    unset thp_path
    ;;
esac

Non systemd!

ulimit

cent6/amazon

/etc/security/limits.d/99-mongodb-nproc.conf

mongod     soft    nproc     64000

Deploy cluster ver 3.2

Build config server

/etc/mongod.conf

replication:
  replSetName: replconfig

sharding:
  clusterRole: configsvr

Start mongod server.
And build Config Server Replica Set (maybe from ver 3.2)

$ mongod
rs.initiate(
  {
    _id : "replconfig",
    members: [
      { _id : 0, host : "mongoc1:27017" },
      { _id : 1, host : "mongoc2:27017" },
      { _id : 2, host : "mongoc3:27017" }
    ]
  }
)

Build ReplicaSet

Shard-0 (sh00)

/etc/mongod.conf

replication:
  replSetName: sh00

sharding:
  clusterRole: shardsvr

$ mongod
rs.initiate(
  {
    _id : "sh00",
    members: [
      { _id : 0, host : "mongod1:27017" },
      { _id : 1, host : "mongod2:27017" },
      { _id : 2, host : "mongod3:27017" }
    ]
  }
)

Shard-1 (sh01)
port 27117

/etc/mongod-s1.conf

replication:
  replSetName: sh01

sharding:
  clusterRole: shardsvr

$ mongod
rs.initiate(
  {
    _id : "sh01",
    members: [
      { _id : 0, host : "mongod1:27117" },
      { _id : 1, host : "mongod2:27117" },
      { _id : 2, host : "mongod3:27117" }
    ]
  }
)

Add Shards

sh.addShard( "sh00/mongod1:27017")
sh.addShard( "sh01/mongod1:27117")

[replName]/primaryNode:port
We must set primaryNode!

And more...

sh.enableSharding("")

If the collection already contains data, you must create an index on the shard key using the db.collection.createIndex() method before using shardCollection().

If the collection is empty, MongoDB creates the index as part of sh.shardCollection().

The following operation shards the target collection:

sh.shardCollection("<database>.<collection>", { <key> : <direction> } )

start on mac

Install via brew

mongod --config /usr/local/etc/mongod.conf

mongoimport

Support 2 type json
http://zaiste.net/2012/08/importing_json_into_mongodb/

{ name: "Widget 1", desc: "This is Widget 1" }
{ name: "Widget 2", desc: "This is Widget 2" }

[
    { name: "Widget 1", desc: "This is Widget 1" },
    { name: "Widget 2", desc: "This is Widget 2" }
]

with --jsonArray option.

MongoDB note