The thought has crossed my mind, in fact I made sure that you can execute sets of stellar statements by cat script | $METRON_HOME/bin/stellar -z $ZK_QUORUM
In fact that is how I generated the examples in the docs for the management functions PR at https://github.com/cestella/incubator-metron/blob/00a46745f316c21f8ea2c24caeda4d2c2239da97/metron-platform/metron-management/README.md The challenge at the moment is the startup time to search the class path for stellar functions at shell start. I have some ideas to make that go away, but until that happens you will have to eat the cost per script run. In general just like the python command is nice as a repl, it also works for executing scripts. We could do something similar with stellar. Casey On Sun, Sep 25, 2016 at 10:40 Otto Fowler <[email protected]> wrote: > Casey, > > Would things implemented this way be a better way to automate these flows > ( built in error handling and checking as standards ) and not just for a > user at the terminal? > > On September 24, 2016 at 19:02:59, Casey Stella ([email protected]) > wrote: > > Sorry, I meant to ask if anyone had feedback or thoughts. > On Sat, Sep 24, 2016 at 18:35 Casey Stella <[email protected]> wrote: > > > Grok-based parsers are an important part of Metron and Grok is an > > extremely adaptable, if complex, language for specifying structure in > data. > > > > > > Right now, the flow is generally: > > > > > 1. Get some sample data > > 2. Use an online utility to test grok statements > > 3. upload grok statement to HDFS > > 4. restart parser topology > > > > > Given the demo around managing stellar transformations inside of the > REPL, > > I began to think that it might be a more coherent and integrated > experience > > to manage grok inside of the REPL. > > > > This would involve stellar functions to > > > > > - test grok statements > > - read grok statements from HDFS > > - push grok statements to HDFS > > > > > I made a few JIRAs to outline it here > > > <https://issues.apache.org/jira/browse/METRON-454>. > > > >
