Nick Allen created METRON-1529:
----------------------------------
Summary: CONFIG_GET Fails to Retrieve Latest Config When Run in
Zeppelin REPL
Key: METRON-1529
URL: https://issues.apache.org/jira/browse/METRON-1529
Project: Metron
Issue Type: Bug
Reporter: Nick Allen
Assignee: Nick Allen
The configuration values retrieve by CONFIG_GET are incorrect when run in the
Zeppelin REPL. The cache backing CONFIG_GET retrieves the correct value when
the function is initialized. If the value is changed either in the same
session or by an external process, the cache is never updated to the latest
value. Restarting the Zeppelin REPL session and forcing reinitialization will
cause the correct, latest value to be retrieved.
Do the following in a Zeppelin Notebook to replicate the bug.
1. Follow the README to install the Stellar Zeppelin Interpreter.
2. In Zeppelin > Interpreters > Stellar, set the zookeeper URL property.
{code}
zookeeper.url = localhost:2181
{code}
3. In Zeppelin > Interpreters > Stellar, set the following additional
dependencies.
| artifact | exclude
|
| org.apache.metron:metron-management:0.4.3 |
|
| org.apache.metron:metron-common:0.4.3 |
|
| io.thekraken:grok:0.1.0 |
org.apache.commons:commons-lang3 |
| org.apache.commons:commons-lang3:3.2 |
|
4. Create a notebook and run the following.
{code}
CONFIG_GET("GLOBAL")
{
"k6" : "v6"
}
{code}
{code}
CONFIG_PUT("GLOBAL", '{ "k7":"v7" }')
{code}
{code}
CONFIG_GET("GLOBAL")
{
"k6" : "v6"
}
{code}
5. The last result shold be "k7"/"v7", but is instead the old value "k6"/"v6".
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