Member since
05-27-2014
1499
Posts
77
Kudos Received
44
Solutions
My Accepted Solutions
Title | Views | Posted |
---|---|---|
3176 | 05-04-2020 11:56 AM | |
1953 | 05-01-2020 10:43 AM | |
2076 | 04-28-2020 03:11 PM | |
3554 | 04-28-2020 10:35 AM | |
2449 | 04-13-2020 10:44 AM |
07-14-2019
06:41 PM
@manu_009, Unfortunately, the CM log kind of shows us more of the same: the server attempts to execute a query but communication with MySQL fails. If this is a problem where the server cannot start, I'd be interested in seeing the logs from startup just to see if there are any clues when CM attempts to connect to MySQL initially. If it gets by that part but then fails later on, that could tell us something. Since the CM log shows it is waiting for packets that never arrive, that means it would be good to look at the network and MySQL to see if it gets connections from CM. I'd recommend the following: - Try starting CM and while CM is starting, run the "show full processlist;" to see if any connections are establishjed You could also use netstat -nap or similar to see if connections are established. - Check MySQL documentation... see if there is a way to debug incoming connections - Try running this on the CM host before trying to start: "tcpdump -i any -w ~/mysql.pcap port 3306" (or whatever port your MySQL is listining on) This will capture all packets going out to and coming back from the MySQL server. After CM does not start, use Ctrl-c to quit tcpdump and finalize the pcap file. You can use WireShark to review communication with MySQL. You could also run tcpdump on the MySQL host (if it is not the CM host) to find out how communication looks on the MySQL host side. Generally, the errors you are seeing do not indicate a problem with CM itself; rather, CM cannot read information from the database.
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07-11-2019
02:15 PM
@BiggieSmalls, The error you show indicates that the certificate and key files specified for Hue are not in the expected PEM format. The key needs to have the key stored in base64 between: -----BEGIN ENCRYPTED PRIVATE KEY----- -----END ENCRYPTED PRIVATE KEY----- The certificate file needs to have the certificate in base64 between: -----BEGIN CERTIFICATE----- -----END CERTIFICATE----- The "no start line" error from openssl libraries is explaining that it cannot find any BEGIN line make sure your ssl_certificate and ssl_private_key files contain the above text.
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07-04-2019
01:44 AM
H i have removed everything and reinstalled again and passed distributing
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06-28-2019
10:53 AM
Hi @balkrishna , Great to hear that the issue got resolved! As for marking of a solution, only the author of the topic/question can mark a reply as the solution. I will however mark this as resolved for you since it is fixed now. Thanks for using our community! Li
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06-22-2019
08:05 PM
Please suggest me for intial load of TBs and/or PBs of data from Proudcution cluster to DR cluster. Do you suggest to migrate/replicate data using Cloudera BDR? Thanks
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06-20-2019
08:49 AM
1 Kudo
Hi @andreas , The jira is internally to Cloudera so you can raise a question in community to ask for an update. Thanks, Li
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06-18-2019
06:36 PM
idle session timeout didn't help me. It seems Hue keeps Impala connection and keeps communicating with Impala coordinator when the query is in flight. The only way to close any open connection is to logoff from the HUE or Close the HUE session from http://<<Query-Coordinator>>:25000/sessions.
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06-06-2019
11:01 PM
I added above values and that was causing https to shutdown. After deleting those values , it stated and working fine now.
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06-06-2019
07:26 AM
Thank you so much for your prudent response. It is unfortunate that the API does not provide subcommands for each command and I can see no workaround to this at the moment. I appreciate all the help you have provided.
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