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Log Selector instance when Selector needs to be rebuild

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Motivation:

To better debug why a Selector need to be rebuild it is useful to also log the instance of the Selector.

Modifications:

Add logger instance to the log message.

Result:

More useful log message.
This commit is contained in:
Norman Maurer 2016-06-09 09:28:47 +02:00
parent 8af84bb60e
commit 0dee98a7fc
1 changed files with 6 additions and 4 deletions
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10
transport/src/main/java/io/netty/channel/nio/NioEventLoop.java
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@ -716,8 +716,8 @@ public final class NioEventLoop extends SingleThreadEventLoop {
// The selector returned prematurely many times in a row.
// Rebuild the selector to work around the problem.
logger.warn(
"Selector.select() returned prematurely {} times in a row; rebuilding selector.",
selectCnt);
"Selector.select() returned prematurely {} times in a row; rebuilding Selector {}.",
selectCnt, selector);
rebuildSelector();
selector = this.selector;
@ -733,12 +733,14 @@ public final class NioEventLoop extends SingleThreadEventLoop {
if (selectCnt > MIN_PREMATURE_SELECTOR_RETURNS) {
if (logger.isDebugEnabled()) {
logger.debug("Selector.select() returned prematurely {} times in a row.", selectCnt - 1);
logger.debug("Selector.select() returned prematurely {} times in a row for Selector {}.",
selectCnt - 1, selector);
}
}
} catch (CancelledKeyException e) {
if (logger.isDebugEnabled()) {
logger.debug(CancelledKeyException.class.getSimpleName() + " raised by a Selector - JDK bug?", e);
logger.debug(CancelledKeyException.class.getSimpleName() + " raised by a Selector {} - JDK bug?",
selector, e);
}
// Harmless exception - log anyway
}