ashutosh-bapat commented on a change in pull request #537: HIVE-19430 :
ObjectStore.cleanNotificationEvents OutOfMemory on large number of pending
events
URL: https://github.com/apache/hive/pull/537#discussion_r257211237
##########
File path:
hcatalog/server-extensions/src/main/java/org/apache/hive/hcatalog/listener/DbNotificationListener.java
##########
@@ -1142,10 +1142,8 @@ public void run() {
} catch (Exception ex) {
//catching exceptions here makes sure that the thread doesn't die in
case of unexpected
//exceptions
- LOG.warn(
- "Exception received while cleaning notifications. More details
can be found in debug mode"
- + ex.getMessage());
- LOG.debug(ex.getMessage(), ex);
Review comment:
There is no point in dropping a warning with just the exception message and
asking user to turn on debug level to investigate further. An exception has
happened and if we are giving out "warn"ing better we also log the exception
accompanying it instead of a separate debug message. WARN has higher priority
than debug.
It will make the logs slightly verbose but will be more useful in production
environment where changing log level isn't that easy.
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