Member since
02-18-2016
141
Posts
19
Kudos Received
18
Solutions
My Accepted Solutions
Title | Views | Posted |
---|---|---|
3628 | 12-18-2019 07:44 PM | |
3658 | 12-15-2019 07:40 PM | |
1382 | 12-03-2019 06:29 AM | |
1401 | 12-02-2019 06:47 AM | |
4217 | 11-28-2019 02:06 AM |
12-06-2019
01:11 AM
Hi @pdev Login to the host and execute below command - for a in /*; do mountpoint -q -- "$a" || du -s -h -x "$a"; done command which will ignore all mounts and only give size details of filesystem/dirs which resides under "/" You can check and delete data accordingly.
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12-03-2019
06:29 AM
Hi @Peruvian81 there is no such option in ambari UI You can either check from Namenode UI --> datanode tab and see if the block counts are increasing.
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12-02-2019
06:47 AM
Hi @Peruvian81 Once you add new datanode to cluster and if the replication starts you can see messages somehow like below in datanode logs - which signifies that new node is finalizing blocks written as well as receiving blocks from source node within replication. DataNode.clienttrace (BlockReceiver.java:finalizeBlock(1490)) - src: /<IPADDRESS>:45858, dest: /<IPADDRESS>:1019, bytes: 7526, op: HDFS_WRITE, cliID: DFSClient_NONMAPREDUCE_-646394656_1, offset: 0, srvID: 973c1ebc-7c88-4163-aea3-8c2e0f4f4975, blockid: BP-826310834-<IPADDRESS>-1480602348927:blk_1237811292_164146312, duration: 9130002
datanode.DataNode (DataXceiver.java:writeBlock(669)) - Receiving BP-826310834-<IPADDRESS>-1480602348927:blk_1237811295_164146315 src: /<IPADDRESS>:36930 dest: /<IPADDRESS>:1019
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11-29-2019
01:38 AM
Hi @laplacesdemon Than you for the response and appreciation. I will be happy to contribute and share my experiences gong further. Thank you for accepting the answer.
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11-28-2019
10:51 PM
@Manoj690 Can you remove password from previous comment. Just to avoid escalation of security standards. Can you share the commands you executed previously?
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11-28-2019
03:28 AM
@Manoj690 login to mysql and follow step 2 from below link https://docs.cloudera.com/HDPDocuments/Ambari-2.7.3.0/administering-ambari/content/amb_using_ambari_with_mysql_or_mariadb.html make sure you give. permission as per your ambari hostname(FQDN) also.
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11-28-2019
02:43 AM
From Ambari node can you try - mysql -u <ambari_DB_username> <Ambari_DB_name> -h <DB_hostname> -P <Port> Check if you are able to successfully login to the DB from ambari node.
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11-28-2019
02:19 AM
Hi @Manoj690 Now the error is different - "jdbc:mysql://xxxxx:3306/ambari" "ambari" "Password" com.mysql.jdbc.Driver
ERROR: Unable to connect to the DB. Please check DB connection properties.
com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications
link failure Probably check connection to your DB server from ambari node. Login to ambari server and telnet - $telnet <DB_HOST> 3306 Make sure IPtables/selinux is disabled. If you think initial issue is resolved please close this topic my accepting the correct reply on thread. Will be happy to help you for above issue. Please keep posted.
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11-28-2019
02:06 AM
Hi @Manoj690 Can you copy - "/var/lib/ambari-server/resources/mysql-connector-java.jar" to "/usr/share/java/" and retry. Make sure you use correct java path for the java version you are pointing too.
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11-28-2019
12:50 AM
Hi @Manoj690 Can you share output of below commands - $ ls -ltr /usr/share/java/mysql.jar $find / -name mysql.jar $find / -name mysql-connector-java*.jar
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