Hi Sumit, It seems the clocks are off, I should have checked that earlier! Thanks for you help.
-Christian On Sun, Sep 8, 2013 at 1:38 AM, Sumit Mohanty <[email protected]>wrote: > Hi Christian, > > Heartbeat hostname not aligning with the registered hostname is the most > likely reason. > > Try these API calls to confirm: > curl –u user:passwd http://AmbariHost:8080/api/v1/hosts –this will tell > you how many hosts are registered and their hostname (FQDN is what is > typically used for registration) > > You can compare that with > curl –u user:passwd > http://AmbariHost:8080/api/v1/clusters/YourClusterName/hosts<http://AmbariHost:8080/api/v1/hosts> > – > tells you the list of hosts that the cluster is associated with > > If indeed there is a hostname mismatch, you can modify the hostname on the > host itself and restart the agent. > > If you can't modify the hostname for some reason, let us know. There is a > way for ambari agents to override the host supplied hostname as well. > However, the prior solution is preferred. > > -Sumit > From: Christian Smith <[email protected]> > Reply-To: <[email protected]> > Date: Saturday, September 7, 2013 2:56 AM > To: "[email protected]" <[email protected]> > Subject: Ambari server claiming no heartbeats from agents > > Hi, > > I've got a new cluster configured via the API with HDFS and MR. The > configuration went fine and the HDFS service says its running. However, on > the hosts tab, all hosts are marked with a yellow circle and state that no > heartbeat has been received for over 3 minutes. > > I've checked the agent and server logs and heartbeats are being sent and > received by the expected parties. So my question is what could be going > wrong? And how does the server associate a received heartbeat with a host > in the cluster config? Does the server to a reserve DNS lookup of the > heartbeats source IP? Or does the heartbeat contain the hostname of the > agent? > > It seems like something around the heartbeat hostname is not aligned with > what the server is expecting... > > Any ideas how to debug further? > > Cheers, > Christian > > CONFIDENTIALITY NOTICE > NOTICE: This message is intended for the use of the individual or entity > to which it is addressed and may contain information that is confidential, > privileged and exempt from disclosure under applicable law. If the reader > of this message is not the intended recipient, you are hereby notified that > any printing, copying, dissemination, distribution, disclosure or > forwarding of this communication is strictly prohibited. If you have > received this communication in error, please contact the sender immediately > and delete it from your system. Thank You.
