The dynamic log level allows us to change the log level setting of the topology on the runtime from the Storm CLI and the Storm UI.
Go through the following steps to update the log level from the Storm UI:
- Deploy
SampleStormClusterTopology
again on the Storm cluster if it is not running. - Browse the Storm UI at
http://nimbus-node:8080/
. - Click on the
storm_example
topology.
- Now click on the
Change Log Level
button to change theROOT
logger of the topology, as shown in the following are the screenshots:
- Configure the entries mentioned in the following screenshots change the
ROOT
logger toERROR
:
- If you are planning to change the logging level to
DEBUG
, then you must specify the timeout (expiry time) for that log level, as shown in the following screenshots:
- Once the time mentioned in the expiry time is reached, the log level will go back to the default value:
Clear
button mentioned in theAction
column will clear the log setting, and...