Lookup Manager statistics
SPL standard and specialized toolkits > com.ibm.streams.teda 1.0.2 > Operating applications > Monitoring the Lookup Manager and ITE applications > Lookup Manager statistics
For each externally triggered action, the Lookup Manager application writes one or more log entries that include statistics and debug information. These entries are written to a new file every day, and each entry is a text line in the file. The format of the log file is identical to the txt format of the spl.adapter::FileSink operator and contains the following attributes:
- filename
The name of the processed file.
command
The external command (init, update, and delete) or internal event names and their results, for example, SUCCESS request:submit.
commandStartedAt
The beginning of the command processing.
commandProcessedAt
The ending of the command processing
hostStatistics
List of strings, where each string provides information on the resource usage for a host in the following format:
<hostname> segments:{<comma-separated list of segment-info entries>}
with a segment-info format of:
[sgmnt:segment<segment name>- repository:<table name>- reserved:<reserved bytes>- free:<free bytes>-free %:<percentage of free bytes>- processed:<number of processed data tuples]
logFileDate
The date of the log entry.
Observing the percentage of free bytes value for each segment is important to identify early a memory bottleneck. Typically, a value less than 30% should be observed carefully and discussed with the development team to identify countermeasures. A value less than 10% is typically a critical value that requires your and the development team's immediate attention to increase the reserved memory and to identify the reason for the low value.