sijie commented on a change in pull request #3581: Fix thread safety violation
on ProducerImpl
URL: https://github.com/apache/pulsar/pull/3581#discussion_r256670903
##########
File path:
pulsar-client/src/main/java/org/apache/pulsar/client/impl/ProducerImpl.java
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@@ -803,12 +806,12 @@ protected boolean
verifyLocalBufferIsNotCorrupted(OpSendMsg op) {
}
protected static final class OpSendMsg {
- MessageImpl<?> msg;
- List<MessageImpl<?>> msgs;
- ByteBufPair cmd;
- SendCallback callback;
- long sequenceId;
- long createdAt;
+ volatile MessageImpl<?> msg;
Review comment:
@lovelle Have you seen any issues regarding these fields? OpSendMsg is a
per-message structure. I don't expect it to be shared by multiple threads a
lot. Is it too heavy to convert all fields to `volatile`?
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