walterddr commented on code in PR #11205:
URL: https://github.com/apache/pinot/pull/11205#discussion_r1280755616
##########
pinot-query-runtime/src/main/java/org/apache/pinot/query/mailbox/ReceivingMailbox.java:
##########
@@ -79,7 +94,11 @@ public boolean offer(TransferableBlock block, long
timeoutMs) {
try {
if (_blocks.offer(block, timeoutMs, TimeUnit.MILLISECONDS)) {
if (_errorBlock.get() == null) {
+ if (LOGGER.isDebugEnabled()) {
+ LOGGER.debug("==[MAILBOX]== Block " + block + " ready to read from
mailbox: " + _id);
+ }
_receiveMailCallback.accept(MailboxIdUtils.toOpChainId(_id));
+ notifyReader();
Review Comment:
tagging @Jackie-Jiang to take a look at the mailbox mechanism
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