otterc commented on code in PR #41071:
URL: https://github.com/apache/spark/pull/41071#discussion_r1197131313
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common/network-common/src/main/java/org/apache/spark/network/server/TransportChannelHandler.java:
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@@ -163,14 +163,11 @@ public void userEventTriggered(ChannelHandlerContext ctx,
Object evt) throws Exc
if (e.state() == IdleState.ALL_IDLE && isActuallyOverdue) {
if (responseHandler.hasOutstandingRequests()) {
String address = getRemoteAddress(ctx.channel());
- logger.error("Connection to {} has been quiet for {} ms while
there are outstanding " +
- "requests. Assuming connection is dead; please adjust" +
- " spark.{}.io.connectionTimeout if this is wrong.",
- address, requestTimeoutNs / 1000 / 1000,
transportContext.getConf().getModuleName());
- client.timeOut();
- ctx.close();
Review Comment:
The closeIdleConnection flag determines whether to close the connection,
regardless of whether there are any pending requests. When this flag is
enabled, the connection is closed even if there are no outstanding requests.
However, if there are pending requests, the client adheres to the
requestTimeoutNs duration, which is a sensible approach because waiting
indefinitely is not recommended. Modifying this behavior would result in a
change to long-established semantics.
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