Executing a Linux command using a tSystem component

[Anonymous]

Helllo,

I need to execute this linux command:

sudo su - hdfs -c "echo -n > /opt/application/bdfalh/test/log/hdfs-audit.log"

in tSystem, I used:

"sudo su - hdfs -c \"echo -n > "+context.rep_filesystem_log_hdfs+"hdfs-audit.log\""

I tried many different ways, single commen, array command, putting the command into a variable

nothing works so far.

At the execution, Talend returns no error but nothing happens on the server

Does anyone have any idea.

Thanks

[Anonymous]

Hi,

    Did you check whether the Linux user which Talend is using to execute the command (say talend) is having the authorization to perform sudo su to hdfs user?

Warm Regards,
Nikhil Thampi

Please appreciate our Talend community members by giving Kudos for sharing their time for your query. If your query is answered, please mark the topic as resolved 🙂

[vapukov]

add to @nthampi question (just to check):

does context.rep_filesystem_log_hdfs ended with / ?

[Anonymous]

Hi,

@nthampi : absolutly, that user has the right, I add it to sudoers file, plus when I launch the command throw linux terminal in the server, it does work.

@vapukov : yes, context.rep_filesystem_log_hdfs=/opt/hdp/log/hdfs/hdfs/

    Did you check whether the Linux user which Talend is using to execute the command (say talend) is having the authorization to perform sudo su to hdfs user?

[vapukov · Accepted solution]

as 100% working variant - use .sh file instead of command

I remember we also meet with cases when tSystem do not work as expected and start use bash scripts instead, it often adds additional flexibility

[Anonymous]

thanks that works