all hostnames should be compared case insensitively

XMLWordPrintableJSON

    • Type: Bug
    • Resolution: Won't Fix
    • Priority: Major - P3
    • None
    • Affects Version/s: None
    • Component/s: Networking
    • Service Arch
    • ALL
    • Service Arch 2019-04-22, Service Arch 2019-05-06, Service Arch 2019-05-20
    • 35
    • None
    • None
    • None
    • None
    • None
    • None
    • None

      It seems like addshard treats hostnames case-sensitively, which is inconsistent with how hostnames work in DNS.

      Here's my replica set, addshard failures below. (I know that using localhost adds some extra stupid to the problem, but I don't have a routable hostname to test with right now.)

      > rs.conf()
{
        "_id" : "a",
        "version" : 3,
        "members" : [
                {
                        "_id" : 0,
                        "host" : "LOCALHOST:27017"
                },
                {
                        "_id" : 1,
                        "host" : "LOCALHOST:27018"
                },
                {
                        "_id" : 2,
                        "host" : "LOCALHOST:27019"
                }
        ]
}

      Here are a bunch of attempts to add it as a shard:

      mongos> db.adminCommand({addShard:"a/localhost"})
{
        "ok" : 0,
        "errmsg" : "in seed list a/localhost, host localhost:27017 does not belong to replica set a"
}
mongos> db.adminCommand({addShard:"a/localhost:27017"})
{
        "ok" : 0,
        "errmsg" : "in seed list a/localhost:27017, host localhost:27017 does not belong to replica set a"
}
mongos> db.adminCommand({addShard:"a/localhost:27017,localhost:27018"})
{
        "ok" : 0,
        "errmsg" : "in seed list a/localhost:27017,localhost:27018, host localhost:27017 does not belong to replica set a"
}
mongos> db.adminCommand({addShard:"localhost:27017"})
{
        "ok" : 0,
        "errmsg" : "host is part of set: a use replica set url format <setname>/<server1>,<server2>,...."
}
mongos> db.adminCommand({addShard:"LOCALHOST:27017"})
{
        "ok" : 0,
        "errmsg" : "can't use localhost as a shard since all shards need to communicate. either use all shards and configdbs in localhost or all in actual IPs  host: LOCALHOST:27017 isLocalHost:0"
}
mongos> db.adminCommand({addShard:"a/LOCALHOST:27017"})
{
        "ok" : 0,
        "errmsg" : "can't use localhost as a shard since all shards need to communicate. either use all shards and configdbs in localhost or all in actual IPs  host: LOCALHOST:27017 isLocalHost:0"
}
mongos> db.adminCommand({addShard:"a/LOCALHOST:27017,LOCALHOST:27018"})
{
        "ok" : 0,
        "errmsg" : "can't use localhost as a shard since all shards need to communicate. either use all shards and configdbs in localhost or all in actual IPs  host: LOCALHOST:27017 isLocalHost:0"
}

            Assignee:
            [DO NOT USE] Backlog - Service Architecture
            Reporter:
            Richard Kreuter (Inactive)
            Votes:
            5 Vote for this issue
            Watchers:
            20 Start watching this issue

              Created:
              Updated:
              Resolved: