Database Reference
In-Depth Information
Log file name
The information stored in the log file
A
FATAL
error that could stop Impala execution or induce
query failure
impalad.FATAL
statestored.ERROR
Statestore-specific errors
Impala logs contain detailed information about the Impala daemon and statestore
processes, along with each query processed by Impala. Some of the info, such as
process and machine info, is logged once. However, when queries are processed,
all query details are logged. This is described in the following table:
One time info in the logs at Impala
startup
Each query-specific detail in the Im-
pala log
Machine name
Query composition
Impala version
Degree of data locality
Impala startup flags
Data throughput statistics
CPU and disks information
Query response time
