DBX：Cannot communicate with task server, please check your settings.

[wayne_test]

I want to use BDX app. But it tells the error"Cannot communicate with task server, please check your settings.".I have installed java 1.8.0_191. And the port 9998 or 1025 is not occupied.

The error message:

port 1025 has the same error.

JAVA information:

[root@sw-8c16g1t-1-new ~]# java -version
java version "1.8.0_191"
Java(TM) SE Runtime Environment (build 1.8.0_191-b12)
Java HotSpot(TM) 64-Bit Server VM (build 25.191-b12, mixed mode)

Port information:

[dhirendra761]

Hi All,

I have gone though all the answers and done all required changes in config but nothing will happend.
Finally, I use below steps to reslove this issue.

1. Backup your files, if exist, ex: db_input.conf and drivers
2. Stop splunk. Remove db_connect app from app folder.
3. Restart Splunk.
4. Upgrade your splunk with just new version.
5. install > db connect app

check your db it will be okay now.

Happy Splunking !..

[harsmarvania57]

Have you tried to restart splunk ? I was facing the same issue and in last I need to restart splunk service to fix this issue.

[wayne_test]

Yes, I have tried many time. lol

But can`t fix the issue.

[harsmarvania57]

Are you using Oracle JRE, not OpenJRE ?

[wayne_test]

I`m using Oracle JRE.

[harsmarvania57]

As you installed JDK, can you please set JAVA_HOME to /usr/lib/java/jdk1.8.0_191/jre/

[p_gurav]

Can you check, is there any error in _internal logs? Try searching index=_internal sourcetype=dbx*.

[wayne_test]

Hi. Thank you for your answer. Here is my _internal log, I couldn`t find sth useful.
1/7/19
1:41:07.000 PM

2019-01-07T13:41:07+0800 [INFO] [dbx_settings.py], line 118: update java path file [/opt/splunk/etc/apps/splunk_app_db_connect/bin/../windows_x86_64/bin/customized.java.path]
host = sw-8c16g1t-1-new.novalocal source = /opt/splunk/var/log/splunk/splunk_app_db_connect_dbx.log sourcetype = dbx
1/7/19
1:41:07.000 PM

2019-01-07T13:41:07+0800 [INFO] [dbx_settings.py], line 118: update java path file [/opt/splunk/etc/apps/splunk_app_db_connect/bin/../windows_x86/bin/customized.java.path]
host = sw-8c16g1t-1-new.novalocal source = /opt/splunk/var/log/splunk/splunk_app_db_connect_dbx.log sourcetype = dbx

[p_gurav]

Did you set JAVA_HOME?

This may helpful:
https://docs.opsgenie.com/docs/setting-java_home

[wayne_test]

Yes, I have configured JAVA already.

[root@sw-8c16g1t-1-new ~]# echo $JAVA_HOME
/usr/lib/java/jdk1.8.0_191

[p_gurav]

Ok. Did you download JAVA from below link:
https://www.oracle.com/technetwork/java/javase/downloads/index.html

[wayne_test]

Yes. And I am using this JAVA to install DBX on another machine successfully 2 months ago.

[p_gurav]

Can you try changing port?

[MousumiChowdhur]

Hi,

Have you tried changing the port to which RPC service binds? Please find the below link: https://docs.splunk.com/Documentation/DBX/3.1.3/DeployDBX/Troubleshooting

Thank You.

[wayne_test]

Hi

Thank you for your answer. But I didn`t find how to fix this problem in the link.

I find the rpc port is 1866. And I tried 1866 port. The same result.

[root@sw-8c16g1t-1-new certs]# netstat -an | grep "rpc"
unix 2 [ ACC ] STREAM LISTENING 1866 /var/run/rpcbind.sock