Created on 01-17-2017 11:56 AM - edited 08-19-2019 02:04 AM
I have followed the following link to build and install Apache Atlas
Link: http://atlas.incubator.apache.org/InstallationSteps.html
And selected to install the embedded-hbase-solr profile, but when I started Atlas after installation it is showing me the following errors and warning.
I have also tried to see which version is running curl -v http://localhost:21000/api/atlas/admin/version but it is giving the following:
* Hostname was NOT found in DNS cache * Trying 127.0.0.1... * connect to 127.0.0.1 port 21000 failed: Connection refused * Failed to connect to localhost port 21000: Connection refused * Closing connection 0 curl: (7) Failed to connect to localhost port 21000: Connection refused
Kindly let me know how shall I proceed to ensure Altas is working in the correct order. Any help will be highly appreciated. Thanking you in anticipation.
Kind Regards
Created 01-17-2017 07:10 PM
I think you have to build the server using "mvn clean install -Pdist,<your hbase profile name>", once this is done you need to navigate to the distro/target/ folder and then run the atlas_start.py from there.
HTH
Created 01-26-2017 03:55 PM
017-01-26 00:00:00,351 WARN - [main-SendThread(localhost:2181):] ~ Session 0x0 for server null, unexpected error, closing socket connection and attempting reconnect (ClientCnxn$SendThread:1102) java.net.ConnectException: Connection refused at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method) at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:744) at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:361) at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1081) 2017-01-26 00:00:01,453 WARN - [main-SendThread(localhost:2181):] ~ Session 0x0 for server null, unexpected error, closing socket connection and attempting reconnect (ClientCnxn$SendThread:1102) java.net.ConnectException: Connection refused at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method) at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:744) at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:361) at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1081) 2017-01-26 00:00:02,554 WARN - [main-SendThread(localhost:2181):] ~ Session 0x0 for server null, unexpected error, closing socket connection and attempting reconnect (ClientCnxn$SendThread:1102) java.net.ConnectException: Connection refused at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method) at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:744) at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:361) at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1081) 2017-01-26 00:00:03,656 WARN - [main-SendThread(localhost:2181):] ~ Session 0x0 for server null, unexpected error, closing socket connection and attempting reconnect (ClientCnxn$SendThread:1102) java.net.ConnectException: Connection refused at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method) at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:744) at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:361) at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1081) 2017-01-26 00:00:04,757 WARN - [main-SendThread(localhost:2181):] ~ Session 0x0 for server null, unexpected error, closing socket connection and attempting reconnect (ClientCnxn$SendThread:1102) java.net.ConnectException: Connection refused at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method) at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:744) at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:361)
at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1081)
Created 01-26-2017 03:57 PM
@Nixon Rodrigues the contents of the log file are too big to be posted here so I have just posted the beginning of the file for reference.
Created 01-27-2017 08:40 AM
Not able to understand from the logs you provided, but suspect the error while connecting to hbase.
I build and run Atlas using mvn clean package -Pdist,embedded-hbase-solr -DskipTests
and have following env variable set in .bashrc profile
export MAVEN_OPTS="-Xmx1536m -XX:MaxPermSize=512m" export MANAGE_LOCAL_SOLR=True export MANAGE_LOCAL_HBASE=True
Can you add this env variable and try restarting Atlas.
Created 01-27-2017 12:50 PM
@Nixon Rodrigues I tried adding the env variables to .bashrc and started atlas. It is still giving me the following:
hduser@bilal-VirtualBox:~/atlas/distro/target/apache-atlas-0.8-incubating-SNAPSHOT-bin/apache-atlas-0.8-incubating-SNAPSHOT$ bin/atlas_start.py
Apache Atlas Server started!!!
hduser@bilal-VirtualBox:~/atlas/distro/target/apache-atlas-0.8-incubating-SNAPSHOT-bin/apache-atlas-0.8-incubating-SNAPSHOT$ curl -v http://localhost:21000/api/atlas/admin/version
* Hostname was NOT found in DNS cache
* Trying 127.0.0.1... * connect to 127.0.0.1 port 21000 failed: Connection refused
* Failed to connect to localhost port 21000: Connection refused
* Closing connection 0 curl: (7) Failed to connect to localhost port 21000: Connection refused
Created 01-27-2017 01:21 PM
@bilal Arshad,
You are not able to connect to 21000 port , it seems to be firewall issue.
please check firewall related settings
Created on 01-27-2017 03:44 PM - edited 08-19-2019 02:04 AM
@Nixon Rodrigues I have disabled the firewall for now to see if it works but it is still giving the following:
Created 01-28-2017 09:21 AM
@Bilal Arshad,
What is OS you are using, are you using VM ?
Please attach your conf/atlas-application.properties and logs/application.log
Created 01-30-2017 10:16 AM
Created 02-01-2017 02:14 PM
I checked the logs you provided, there are lot of error whiling connecting zookeeper.
can you try to connect zookeeper from zkCli.sh and if this works
2017-01-31 00:00:01,742 WARN - [main-SendThread(localhost:2181):] ~ Session 0x0 for server null, unexpected error, closing socket connection and attempting reconnect (ClientCnxn$SendThread:1102) java.net.ConnectException: Connection refused at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method) at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:744) at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:361) at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1081)
Created 02-06-2017 02:35 PM
@Nixon Rodrigues please excuse me for my naivety, i can't seem to understand how to connect to zookeeper from zkCli.sh! Any help would be highly appreciated!