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10-31-2017
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07-09-2018
07:28 AM
Which ports should be open ? And how to make sure NiFi is ready to accept remotes?
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07-08-2018
06:46 AM
I am not able to ping from Raspberry Pi to Hortanworks Server from laptop but vice-versa is possible.
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07-08-2018
06:41 AM
Even with the correcr server i.e. 10.0.75.1, I am getting the same error. What's the problem?
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03-09-2018
08:55 AM
@Timothy Spann How to check permissions and verify whether flow is running on Rpi? I am seeing this kind of logs in minifi-app.log:- "2018-03-09 13:00:01,454 WARN [NiFi Site-to-Site Connection Pool Maintenance] o.apache.nifi.remote.client.PeerSelector Could not communicate with 192.168.2.3:9999 to determine which nodes exist in the remote NiFi cluster, due to java.net.ConnectException: Connection refused 2018-03-09 13:00:01,475 WARN [NiFi Site-to-Site Connection Pool Maintenance] o.apache.nifi.remote.client.PeerSelector org.apache.nifi.remote.client.PeerSelector@cf5b60 Unable to refresh Remote Group's peers due to Unable to communicate with remote NiFi cluster in order to determine which nodes exist in the remote cluster 2018-03-09 13:00:01,742 INFO [Remote Process Group 96072a53-f650-44b7-9987-2a99e1c4f3c2: http://192.168.2.3:8090/nifi Thread-1] org.apache.http.impl.execchain.RetryExec I/O exception (org.apache.http.NoHttpResponseException) caught when processing request to {}->http://192.168.2.3:8090: The target server failed to respond 2018-03-09 13:00:01,744 INFO [Remote Process Group 96072a53-f650-44b7-9987-2a99e1c4f3c2: http://192.168.2.3:8090/nifi Thread-1] org.apache.http.impl.execchain.RetryExec Retrying request to {}->http://192.168.2.3:8090 2018-03-09 13:00:01,747 INFO [Timer-Driven Process Thread-2] org.apache.http.impl.execchain.RetryExec I/O exception (org.apache.http.NoHttpResponseException) caught when processing request to {}->http://192.168.2.3:8090: The target server failed to respond 2018-03-09 13:00:01,747 INFO [Timer-Driven Process Thread-2] org.apache.http.impl.execchain.RetryExec Retrying request to {}->http://192.168.2.3:8090"
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03-07-2018
11:24 AM
Hello! @Bryan Bende I am also facing the same issue. I restarted minifi agent. Still the same problem. I am getting following error in ExecuteProcess Processor of MiNifi flow:- problem.png problem2.png My NiFi and MiNifi are not connecting I guess. Your help will be of great value. Thanks.
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11-02-2017
06:37 PM
@Edgar Orendain Thank you so much Sir for your guidance and response. As you have said, I'll try to learn Ambari and see if anything happens by it. I hope, the changes in tutorial are made as early as possible as it will help me a lot. I would have tried it but the need of costly materials for the implementation of the tutorial is acting as barrier. I was just wondering how and what to use as a single platform instead of two sandboxes- HDF and HDP. Once again, really thank u Sir. @jmedel Sir please reply me whenever the changes are made if done. It done quickly, it will help me to do my be final year project. It will help me a lot Sir. Thanks for the support.
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11-01-2017
04:26 PM
According to the tutorial "Analyze IOT weather station data via connected data architecture", I need to use both HDP and HDF sandboxes. So, there is requirement of minimum 12 gb Ram for both of them to work. But, the problem is my laptop has only 1 memory slot with maximum capacity of 8GB Ram. So, my question is weather the use of SSD or flash drives be helpful in this case. Or, whether some other alternatives are available.
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