如果Flume手动运行，天鹅座只会在MySql数据库上保存数据

Question

So i had a problem with te presistance of the data on MySql databases before ( Cygnus not presisting data on MySql database ) and as you can see the problem was partially resolved. I'm asking another question because this is somewhat of a different topic inside of the question.

As you can see by the question i asked before, the problem was that the Cygnus was running but not starting any Flume component (any source, channel or sink) . And i started the flume agent by doing:

/usr/cygnus/bin/cygnus-flume-ng agent --conf /usr/cygnus/conf/ -f /usr/cygnus/conf/agent_a1.conf -n cygnusagent -Dflume.root.logger=INFO,console

If i did this all problems were solved and the values were presisted on the tables. But once i killed the process or exited the ssh connection (I'm working on a cloud) the values stop being presisted.

You can see the log, data and scripts i'm using in the link i provided up above.

Answer 1

Now your are trying to run Cygnus as a service, we need properly cnfigured the cygnus_instance_<id>.conf file in addition to the agent_<id>.conf one. HJaving a look your file, I've seen that:

AGENT_NAME=root

This is wrong, and should be cygnusagent instead of root . As described in the comments:

# Name of the agent. The name of the agent is not trivial, since it is
# the base for the Flume parameters naming conventions, e.g. it appears
# in .sources.http-source.channels=...