On Wed, Jul 6, 2016 at 1:12 PM, Den Cowboy <[email protected]> wrote:
> I have an older environment on amazon (older images + 1.1.6v) and there it
> works for mysql:
> I perform a lookup of my service IP:
>
> nslookup 172.30.177.4
>
> Server: 172.30.0.1
>
> Address: 172.30.0.1#53
>
>
>
> Non-authoritative answer:
>
> 4.177.30.172.in-addr.arpa name = mysql.dev-activiti.svc.cluster.local.
>
>
>
> Authoritative answers can be found from:
>
>
> But when I perform the same on my environment on OVH (newer version
> ofcourse)
>
> sh-4.2$ nslookup 172.30.222.94
> Server: 213.186.33.xx
>
>
> Address: 213.186.33.xx#53
>
>
> ** server can't find 94.222.30.172.in-addr.arpa.: NXDOMAIN
>
>
> Than it's pointing to a wrong server (not the 172.30... of OpenShift)
>
it sounds like your cluster DNS server/service is not functioning
correctly.
> I didn't saw an issue pending the installation and also /var/log/messages
> are telling nothing.
>
> logs:
> Jul 6 19:11:17 node01 origin-node: I0706 19:11:17.989899 4926
> manager.go:1024] Using docker native exec to run cmd [/bin/sh -i -c
> MYSQL_PWD="$MYSQL_PASSWORD" mysql -h 127.0.0.1 -u $MYSQL_USER -D
> $MYSQL_DATABASE -e 'SELECT 1'] inside container {docker
> b4958c468b643b7ec7dc239569f73e2ea8568b6c6d7e4151cffd621c58db5778}
> Jul 6 19:11:17 node01 journal: time="2016-07-06T19:11:17.990407769+02:00"
> level=info msg="{Action=exec,
> ID=b4958c468b643b7ec7dc239569f73e2ea8568b6c6d7e4151cffd621c58db5778,
> LoginUID=4294967295, PID=4926}"
> Jul 6 19:11:17 node01 journal: time="2016-07-06T19:11:17.991021609+02:00"
> level=info msg="{Action=start, LoginUID=4294967295, PID=4926}"
> Jul 6 19:11:18 node01 origin-node: I0706 19:11:18.042239 4926
> proxier.go:484] Setting endpoints for "test/mysql:mysql" to [10.1.0.2:3306
> ]
>
> It keeps showing this log every 10 seconds:
> sing docker native exec to run cmd [/bin/sh -i -c
> MYSQL_PWD="$MYSQL_PASSWORD" mysql -h 127.0.0.1 -u $MYSQL_USER -D
> $MYSQL_DATABASE -e 'SELECT 1'] inside container ...
> ------------------------------
> From: [email protected]
> To: [email protected]
> Subject: RE: Unable to connect with service using mysql-ephemeral template
> Date: Wed, 6 Jul 2016 17:03:56 +0000
> CC: [email protected]
>
>
> I seem to have the same issue for my postgresdb:
> nslookup 172.30.200.135
> ** server can't find 135.200.30.172.in-addr.arpa.: NXDOMAIN
>
>
>
> ------------------------------
> From: [email protected]
> Date: Wed, 6 Jul 2016 12:53:06 -0400
> Subject: Re: Unable to connect with service using mysql-ephemeral template
> To: [email protected]
> CC: [email protected]
>
>
>
> On Wed, Jul 6, 2016 at 12:44 PM, Den Cowboy <[email protected]> wrote:
>
> I don't know the best way to check:
>
>
> I was wondering if you had other apps deployed in your cluster that were
> accessing this, or other services by service hostname.
>
>
>
> I see this error in my events after the deploy:
> Readiness probe failed: sh: cannot set terminal process group (-1):
> Inappropriate ioctl for device sh: no job control in this shell ERROR 2003
> (HY000): Can't connect to MySQL server on '127.0.0.1' (111)
>
> I also saw this:
> https://github.com/openshift/origin/blob/master/docs/debugging-openshift.md
> I putted also 8.8.8.8 as ns in my /etc/resolv.conf and rebooted but didn't
> work. Also not after scaling down and up the pod
>
> ------------------------------
> From: [email protected]
> Date: Wed, 6 Jul 2016 12:31:14 -0400
>
> Subject: Re: Unable to connect with service using mysql-ephemeral template
> To: [email protected]
> CC: [email protected]
>
> is service hostname resolution otherwise working in your cluster?
>
>
> On Wed, Jul 6, 2016 at 12:20 PM, Den Cowboy <[email protected]> wrote:
>
> ping mysql: unknown host mysql
> nslookup mysql:
> Server: 213.186.33.xx
>
>
> Address: 213.186.33.xx#53
>
>
> ** server can't find mysql: NXDOMAIN
> dig: answer 0
>
> content of /etc/resolv.conf:
>
> search test.svc.cluster.local svc.cluster.local cluster.local ovh.net
>
> nameserver 178.32.27.xx
>
> nameserver 213.186.33.xx
>
> options ndots:5
>
> This works fine (IP = service IP):
> mysql -utest -ptest -h172.30.222.94
>
> ping 172.30.222.94
>
> PING 172.30.222.94 (172.30.222.94) 56(84) bytes of data.
>
> From 10.1.0.1 icmp_seq=1 Destination Host Unreachable
>
> From 10.1.0.1 icmp_seq=2 Destination Host Unreachable
>
> From 10.1.0.1 icmp_seq=3 Destination Host Unreachable
> From 10.1.0.1 icmp_seq=4 Destination Host Unreachable
>
> ~
>
> ------------------------------
> From: [email protected]
> Date: Wed, 6 Jul 2016 12:02:20 -0400
> Subject: Re: Unable to connect with service using mysql-ephemeral template
> To: [email protected]
> CC: [email protected]
>
>
> Is service DNS resolution otherwise working in your cluster?
>
> if you just enter the container w/o starting the mysql shell are you able
> to dig/nslookup/ping the mysql hostname?
>
> can you check the /etc/resolv.conf settings within the container to ensure
> the cluster DNS server is listed?
>
>
> On Wed, Jul 6, 2016 at 11:49 AM, Den Cowboy <[email protected]> wrote:
>
> I'm on:
> oc v1.2.0
> kubernetes v1.2.0-36-g4a3f9c5
>
> I've deployed the mysql-template which went fine:
> Now I've a running mysql container. I go to the terminal inside my
> webconsole to authenticate on my mysql container:
>
> mysql -utest -ptest -h127.0.0.1
> > mysql
>
> Fine, but when I try my service as my host:
> mysql -utest -ptest -hmysql
>
> Error 2005 (HY000): Unknown MySQL server host 'mysql' (0)
>
> My service above my container is called 'mysql'
> Can someone explain this issue?
>
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>
>
>
> --
> Ben Parees | OpenShift
>
>
>
>
> --
> Ben Parees | OpenShift
>
>
>
>
> --
> Ben Parees | OpenShift
>
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