Uploaded image for project: 'Core Server'
  1. Core Server
  2. SERVER-6991

Add pool stats for ShardedConnection

    XMLWordPrintable

Details

    • New Feature
    • Status: Closed
    • Major - P3
    • Resolution: Fixed
    • None
    • 2.2.4, 2.4.2, 2.5.0
    • Diagnostics, Sharding
    • None
    • Fully Compatible

    Description

      Currently, the connPoolStats will only get stats from the extern pool object. This is linked to the pool ScopedDBConnection uses and it does not include the shardConnectionPool.

      Add a new command called "shardConnPoolStats" which will show information on the per thread (incoming connection) connection status. Sample output for a sharded cluster with a single replica set below:

      mongos> db.runCommand( { 'shardConnPoolStats': 1 } )
      {
      	"hosts" : {
      		"test-rs0/dan-tm2:31100,dan-tm2:31101,dan-tm2:31102::0" : {
      			"available" : 0,
      			"created" : 2
      		}
      	},
      	"replicaSets" : {
      		"test-rs0" : {
      			"hosts" : [
      				{
      					"addr" : "dan-tm2:31100",
      					"ok" : true,
      					"ismaster" : true,
      					"hidden" : false,
      					"secondary" : false,
      					"pingTimeMillis" : 0
      				},
      				{
      					"addr" : "dan-tm2:31101",
      					"ok" : true,
      					"ismaster" : false,
      					"hidden" : false,
      					"secondary" : true,
      					"pingTimeMillis" : 0
      				},
      				{
      					"addr" : "dan-tm2:31102",
      					"ok" : true,
      					"ismaster" : false,
      					"hidden" : false,
      					"secondary" : true,
      					"pingTimeMillis" : 0
      				}
      			],
      			"master" : 0,
      			"nextSlave" : 0
      		}
      	},
      	"createdByType" : {
      		"set" : 2
      	},
      	"totalAvailable" : 0,
      	"totalCreated" : 2,
      	"threads" : [
      		{
      			"hosts" : [
      				{
      					"host" : "test-rs0/dan-tm2:31100,dan-tm2:31101,dan-tm2:31102",
      					"created" : NumberLong(1),
      					"avail" : true
      				}
      			],
      			"seenNS" : [
      				"test.data"
      			]
      		},
      		{
      			"hosts" : [
      				{
      					"host" : "test-rs0/dan-tm2:31100,dan-tm2:31101,dan-tm2:31102",
      					"created" : NumberLong(1),
      					"avail" : true
      				}
      			],
      			"seenNS" : [
      				"test.data"
      			]
      		}
      	],
      	"ok" : 1
      }
      

      Attachments

        Issue Links

          Activity

            People

              greg_10gen Greg Studer
              randolph@mongodb.com Randolph Tan
              Votes:
              0 Vote for this issue
              Watchers:
              3 Start watching this issue

              Dates

                Created:
                Updated:
                Resolved: