shishkovilja commented on code in PR #12663:
URL: https://github.com/apache/ignite/pull/12663#discussion_r2737850066
##########
modules/core/src/main/java/org/apache/ignite/spi/discovery/tcp/TcpDiscoveryIoSession.java:
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@@ -246,7 +246,7 @@ <T> T readMessage() throws IgniteCheckedException,
IOException {
* @throws IgniteCheckedException If serialization fails.
* @throws IOException If serialization fails.
*/
- byte[] serializeMessage(TcpDiscoveryAbstractMessage msg) throws
IgniteCheckedException, IOException {
+ synchronized byte[] serializeMessage(TcpDiscoveryAbstractMessage msg)
throws IgniteCheckedException, IOException {
Review Comment:
Because there is a race condition between `RingMessageWorker` and
`ClientMessageWorker`.
I attached reproducer in the ticked, we can get assertion error during
message write.
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