Poor documentation - Not mentioned what to do after installation #57

nitinagarwal1982 · 2019-05-13T06:37:37Z

Hi,

I have done the polaris installation and followed all the steps mentioned.
Used dig command to check the desire output and I think I am getting proper result.
But after that there is nothing in the documentation what to do. I have setup a DNS and trying to open with http but it is not giving the expected output.

Please find below the steps I have done:

Setup the Polaris GSLB. Below is the polaris-lb.yaml configuration:

pools:
www-gslbpoc:
monitor: http
monitor_params:
use_ssl: false
hostname: myservice.gslbpoc.com
url_path: /gslb/health
port: 8080
expected_codes:
- 200
lb_method: wrr
fallback: any
members:
- ip: 10.247.10.1
name: www1-dc1
weight: 1
- ip: 10.247.20.1
name: www2-dc2
weight: 1

globalnames:
myservice.gslbpoc.com:
pool: www-gslbpoc
ttl: 1

Output of "polaris-memcache-control 127.0.0.1 get-ppdns-state":
{
"globalnames": {
"myservice.gslbpoc.com": {
"pool_name": "www-gslbpoc",
"ttl": 1
}
},
"pools": {
"www-gslbpoc": {
"dist_tables": {
"_default": {
"index": 1,
"rotation": [
"10.247.10.1",
"10.247.20.1"
],
"num_unique_addrs": 2
}
},
"fallback": "any",
"status": true,
"max_addrs_returned": 1,
"lb_method": "wrr"
}
},
"timestamp": 1557494215.115039
}

Output of "polaris-memcache-control 127.0.0.1 get-generic-state":
{
"timestamp": 1557494214.7694283,
"globalnames": {
"myservice.gslbpoc.com": {
"name": "myservice.gslbpoc.com",
"pool_name": "www-gslbpoc",
"ttl": 1
}
},
"pools": {
"www-gslbpoc": {
"name": "www-gslbpoc",
"monitor": {
"timeout": 5,
"name": "http",
"hostname": "myservice.gslbpoc.com",
"use_ssl": false,
"interval": 10,
"url_path": "/gslb/health",
"retries": 2,
"expected_codes": [
200
],
"port": 8080
},
"members": [
{
"name": "www1-dc1",
"status_reason": "monitor passed",
"retries_left": 2,
"status": true,
"monitor_ip": "10.247.10.1",
"ip": "10.247.10.1",
"region": "None",
"weight": 1
},
{
"name": "www2-dc2",
"status_reason": "monitor passed",
"retries_left": 2,
"status": true,
"monitor_ip": "10.247.20.1",
"ip": "10.247.20.1",
"region": "None",
"weight": 1
}
],
"fallback": "any",
"max_addrs_returned": 1,
"last_status": true,
"lb_method": "wrr"
}
}
}

Output of "dig @polaric-gslb-ip myservice.gslbpoc.com":
Ran it multiple time and got both the ips in the output.

; <<>> DiG 9.9.4-RedHat-9.9.4-73.el7_6 <<>> @polaric-gslb-ip myservice.gslbpoc.com
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 10857
;; flags: qr aa rd; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1
;; WARNING: recursion requested but not available

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1680
;; QUESTION SECTION:
;myservice.gslbpoc.com. IN A

;; ANSWER SECTION:
myservice.gslbpoc.com. 1 IN A 10.247.20.1

;; Query time: 0 msec
;; SERVER: polaric-gslb-ip#53(polaric-gslb-ip)
;; WHEN: Mon May 13 09:27:21 IDT 2019
;; MSG SIZE rcvd: 66

; <<>> DiG 9.9.4-RedHat-9.9.4-73.el7_6 <<>> @polaric-gslb-ip myservice.gslbpoc.com
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 3441
;; flags: qr aa rd; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1
;; WARNING: recursion requested but not available

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1680
;; QUESTION SECTION:
;myservice.gslbpoc.com. IN A

;; ANSWER SECTION:
myservice.gslbpoc.com. 1 IN A 10.247.10.1

;; Query time: 0 msec
;; SERVER: polaric-gslb-ip#53(polaric-gslb-ip)
;; WHEN: Mon May 13 09:27:23 IDT 2019
;; MSG SIZE rcvd: 66

Tried to ran the below command but not able to get expected output:

[root@rhel7 ~]# curl -v http://polaric-ip:80
About to connect() to polaric-ip port 80 (#0)
Trying polaric-ip...
Connection refused
Failed connect to polaric-ip:80; Connection refused
Closing connection 0
curl: (7) Failed connect to polaric-ip:80; Connection refused

[root@rhel7 ~]# curl -v http://polaric-ip:8080
About to connect() to polaric-ip port 8080 (#0)
Trying polaric-ip...
Connection refused
Failed connect to polaric-ip:8080; Connection refused
Closing connection 0
curl: (7) Failed connect to polaric-ip:8080; Connection refused

[root@rhel7 ~]# curl -v http://myservice.gslbpoc.com:80
Could not resolve host: myservice.gslbpoc.com; Unknown error
Closing connection 0
curl: (6) Could not resolve host: myservice.gslbpoc.com; Unknown error

[root@rhel7 ~]# curl -v http://myservice.gslbpoc.com:8080
Could not resolve host: myservice.gslbpoc.com; Unknown error
Closing connection 0
curl: (6) Could not resolve host: myservice.gslbpoc.com; Unknown error

Please let me know if I missed any step.

Aaron-loadbalancer-org · 2019-05-14T08:41:53Z

I wonder can you confirm that you have configured your DNS server appropriately.

You need to delegate the subdomain before a DNS query will return the correct result.

When querying your intermediary DNS server with the "no recursive" option it should return the IP address of the Polaris instance you delegated to:

dig myservice.gslbpoc.com @<my-dns-server-ip> +norec

or

nslookup -norecurse myservice.gslbpoc.com <my-dns-server-ip>

Example:

C:\Users\me>nslookup -norecurse myservice.gslbpoc.com 1.1.2.2
Server:  UnKnown
Address:  1.1.2.2

Name:    myservice.gslbpoc.com
Served by:
- polaris.gslbpoc.com
          1.1.2.10
          myservice.gslbpoc.com

nitinagarwal1982 · 2019-05-14T11:56:21Z

Hi Aaron,

Thanks a lot for the quick help.

You were right. I missed the subdomain part.

After doing the right configuration, I am able to get the expected result.

Regards,
Nitin Agarwal

nitinagarwal1982 · 2019-05-16T12:53:12Z

Hi Aaron,

I think I have done something wrong.

Can you please let me know how we need to delegate the subdomain?

Do I need to add some entries in the GSLB with pdnsutil?
OR
Need to add Subdomain entries in the DNS Server by adding A record for each IP Address defined for the members in the polaris-lb

Regards,
Nitin Agarwal

Aaron-loadbalancer-org · 2019-05-16T15:10:05Z

Towards the very bottom of the following Blog we have the info on how to delegate a subdomain on Windows DNS to Polaris:

https://www.loadbalancer.org/blog/loadbalancer-org-releases-a-gslb/

Can I check what DNS server are you using outside of Polaris?

nitinagarwal1982 · 2019-05-16T16:35:39Z

Hi Aaron, I am using private Dns server Vesta to configure domain. My query is that, do we need to make entry for A type for each member? Or only for Polaris GSLB? Regards, Nitin Agarwal

…

On Thu, May 16, 2019, 20:40 Aaron-loadbalancer-org ***@***.***> wrote: Towards the very bottom of the following Blog we have the info on how to delegate a subdomain on Windows DNS to Polaris: https://www.loadbalancer.org/blog/loadbalancer-org-releases-a-gslb/ Can I check what DNS server are you using outside of Polaris? — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#57?email_source=notifications&email_token=AMBZ2YAQKCV2X3KMYUOQZ6TPVV2M7A5CNFSM4HMMYJI2YY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGODVSDY6Y#issuecomment-493108347>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AMBZ2YA2UYQ3VISXBRI2423PVV2M7ANCNFSM4HMMYJIQ> .

nitinagarwal1982 · 2019-05-16T16:38:04Z

If you can provide me your contact details and your timing so we can discuss over call Regards, Nitin Agarwal

…

On Thu, May 16, 2019, 22:05 Nitin Agarwal ***@***.***> wrote: Hi Aaron, I am using private Dns server Vesta to configure domain. My query is that, do we need to make entry for A type for each member? Or only for Polaris GSLB? Regards, Nitin Agarwal On Thu, May 16, 2019, 20:40 Aaron-loadbalancer-org < ***@***.***> wrote: > Towards the very bottom of the following Blog we have the info on how to > delegate a subdomain on Windows DNS to Polaris: > > https://www.loadbalancer.org/blog/loadbalancer-org-releases-a-gslb/ > > Can I check what DNS server are you using outside of Polaris? > > — > You are receiving this because you authored the thread. > Reply to this email directly, view it on GitHub > <#57?email_source=notifications&email_token=AMBZ2YAQKCV2X3KMYUOQZ6TPVV2M7A5CNFSM4HMMYJI2YY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGODVSDY6Y#issuecomment-493108347>, > or mute the thread > <https://github.com/notifications/unsubscribe-auth/AMBZ2YA2UYQ3VISXBRI2423PVV2M7ANCNFSM4HMMYJIQ> > . >

andrei-loadbalancer-org · 2019-05-17T07:04:49Z

Hello Nitin,

As per our instructions in the blog post, you will have to add a subdomain delegation on your DNS server(s), which I believe its the missing piece of the puzzle.

I'm not familiar with VESTA software DNS server, however like on any other DNS server configuration, you will be adding a NS record that will contain the FQDN subdomain(s) e.g. subdomain1.example.com and the nameserver(s) it will be resolving to e.g. ns1.nameserver.com.

nitinagarwal1982 · 2019-05-17T07:48:33Z

Hi Andrei,

Thanks for the response.

According to this blog, I do not need to make entry in the DNS for the actual end point service. Just I need to make entry for the Polaris GSLB and GSLB will give me the actual end point information.

Let me know if this is the case.

Regards,
Nitin Agarwal

andrei-loadbalancer-org · 2019-05-17T09:41:37Z

On your DNS server you will adding an A record for each Polaris instance and then create a subdomain entry to the records you have created earlier (NS).

Hope this information helps.

rezadarzi · 2019-06-10T11:00:22Z

Hi
I have a problem with this solution.
I have BIND and pdns with remote backend also I install and config Polaris. I define subdomain for some URLs that I need. pdns+polaris are my NS for subdomains. unfortunately, it can't resolve these URLs and pdns ** refuse** them.
Does anybody have a practical document for config pdns and Polaris??
thanks.

rezadarzi · 2019-06-17T07:20:59Z

Hi
I have a problem with this solution.
I have BIND and pdns with remote backend also I install and config Polaris. I define subdomain for some URLs that I need. pdns+polaris are my NS for subdomains. unfortunately, it can't resolve these URLs and pdns ** refuse** them.
Does anybody have a practical document for config pdns and Polaris??
thanks.

my problem was solved. it was because of memcache installation.

nitinagarwal1982 mentioned this issue May 14, 2019

review the applicability of stripping a trailing dot in qname #21

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nitinagarwal1982 mentioned this issue May 14, 2019

Still connecting with the server that is down #58

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Poor documentation - Not mentioned what to do after installation #57

Poor documentation - Not mentioned what to do after installation #57

nitinagarwal1982 commented May 13, 2019 •

edited

Aaron-loadbalancer-org commented May 14, 2019 •

edited

nitinagarwal1982 commented May 14, 2019

nitinagarwal1982 commented May 16, 2019 •

edited

Aaron-loadbalancer-org commented May 16, 2019

nitinagarwal1982 commented May 16, 2019 via email

nitinagarwal1982 commented May 16, 2019 via email

andrei-loadbalancer-org commented May 17, 2019

nitinagarwal1982 commented May 17, 2019

andrei-loadbalancer-org commented May 17, 2019

rezadarzi commented Jun 10, 2019 •

edited

rezadarzi commented Jun 17, 2019

Poor documentation - Not mentioned what to do after installation #57

Poor documentation - Not mentioned what to do after installation #57

Comments

nitinagarwal1982 commented May 13, 2019 • edited

Aaron-loadbalancer-org commented May 14, 2019 • edited

nitinagarwal1982 commented May 14, 2019

nitinagarwal1982 commented May 16, 2019 • edited

Aaron-loadbalancer-org commented May 16, 2019

nitinagarwal1982 commented May 16, 2019 via email

nitinagarwal1982 commented May 16, 2019 via email

andrei-loadbalancer-org commented May 17, 2019

nitinagarwal1982 commented May 17, 2019

andrei-loadbalancer-org commented May 17, 2019

rezadarzi commented Jun 10, 2019 • edited

rezadarzi commented Jun 17, 2019

nitinagarwal1982 commented May 13, 2019 •

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Aaron-loadbalancer-org commented May 14, 2019 •

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nitinagarwal1982 commented May 16, 2019 •

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rezadarzi commented Jun 10, 2019 •

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