Member since
04-03-2019
21
Posts
8
Kudos Received
5
Solutions
My Accepted Solutions
Title | Views | Posted |
---|---|---|
5258 | 10-13-2017 10:56 AM | |
3500 | 10-12-2017 11:45 AM | |
12611 | 09-29-2017 08:32 AM | |
2520 | 09-27-2017 04:37 AM | |
1962 | 06-07-2017 03:23 PM |
04-12-2020
05:25 AM
Below is the very good article for differences between hadoop 2.x and Hadoop 3.x Difference Between Hadoop 2 and Hadoop 3
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10-12-2017
11:45 AM
Solution: Go to Ambari Hive Configs page. Then find Custom hive-site Add following arguments: hive.downloaded.resources.dir=/tmp/hive/${hive.session.id}_resources Then save the modification and do a Rolling Restart of related component. We can delete all ages {session_id}_resources folder under /tmp, and start a hive client, run some SQL, then check the new session folder will be generated in /tmp/hive/ folder.
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09-29-2017
08:32 AM
2 Kudos
@vsubramanian hdfs dfs -ls /user/hdfs The above can direct show hidden files, you can directly see the below, for example drwx------ - hdfs hdfs 0 2017-07-13 02:00 /user/hdfs/.Trash
drwxr-xr-x - hdfs hdfs 0 2017-04-06 14:21 /user/hdfs/.hiveJars
drwxr-xr-x - hdfs hdfs 0 2017-06-29 09:12 /user/hdfs/.sparkStaging
drwxr-xr-x - hdfs hdfs 0 2017-04-24 15:54 /user/hdfs/SSP00805
where you can see the file start with a dot.
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07-15-2019
01:20 PM
Hi everyone! I installed the ambari server and ambari-agent to my laptop (SuSE Tumbleweed 2019) to set up a local single-node Hadoop cluster. (Server and agent versions 2.1.2.1-418) Server starts without issues, and I can open the console at http://localhost:8080 Agent says it started, but it can't connect the server, here's what the log says : ERROR 2019-07-15 11:06:06,862 NetUtil.py:77 - [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:727)ERROR 2019-07-15 11:06:06,862 NetUtil.py:78 - SSLError: Failed to connect. Please check openssl library versions.Refer to: https://bugzilla.redhat.com/show_bug.cgi?id=1022468 for more details. I have python (2.7.16-2.1) installed. Also python3 is installed, but the executable defaults to version 2.7 : ls -l /usr/bin/python lrwxrwxrwx 1 root root 9 Jun 24 22:12 /usr/bin/python -> python2.7 I would implement this "verify=disable" solution mentioned above, but there is no file named cert-verification.cfg in my system. There is no python dir under etc at all ! So I think maybe python under SuSE might have a different configuration than other distributions. I google'd a lot, but couldn't find a solution for this yet. Can someone guide me thru this issue please ?
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