Why does JDBC application logging SQL instructions in Apache Tomcat list 545 repeatedly
posted 3 years ago
I'm currently running a number of programs in batch which dynamically create and populate a number of tables in MySQL Server Version 5.5.
When I do this, I am logging the SQL to an Apache Tomcat log file. Sometimes the SQL listings
will list a particular series of queries reading the <title> elements of RSS feeds one by one such as:
Then the name of the system will be printed as follows in the log file:
And then there will be a series of lines reading:
Before the next series of queries run. And when the next series of queries does run, the text of each query is listed, and then another line lists the system name.
MyApp is written in Java and running under Tomcat 6.0.26. I should add that sometimes the number of queries producing the data for one table, which may number in the hundreds, appear to be fine. Other times the 545 message is listed: this appears to be sporadic with no apparent pattern.
Though the queries appear to be running, can anyone tell me what 545 might mean? It seems to happen on two separate servers running the same programs but over different data.
The problem has been traced to a pair of 'rogue' System.out.println(...) statements, which had been used for debugging, and which were erroneously retained when the relevant classes were deployed live.
Thanks to Jaikiran Pai .
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