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Posted to commits@rocketmq.apache.org by "guyinyou (via GitHub)" <gi...@apache.org> on 2023/03/31 07:56:30 UTC
[GitHub] [rocketmq] guyinyou opened a new issue, #6518: multi-threaded bug using bytebuffer
guyinyou opened a new issue, #6518:
URL: https://github.com/apache/rocketmq/issues/6518
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[GitHub] [rocketmq] RongtongJin closed issue #6518: multi-threaded bug using bytebuffer
Posted by "RongtongJin (via GitHub)" <gi...@apache.org>.
RongtongJin closed issue #6518: multi-threaded bug using bytebuffer
URL: https://github.com/apache/rocketmq/issues/6518
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[GitHub] [rocketmq] guyinyou commented on issue #6518: multi-threaded bug using bytebuffer
Posted by "guyinyou (via GitHub)" <gi...@apache.org>.
guyinyou commented on issue #6518:
URL: https://github.com/apache/rocketmq/issues/6518#issuecomment-1491500452
It can be easily reproduced by the following demo
```
ByteBuffer buffer = ByteBuffer.allocateDirect(1000000);
buffer.position(1000000);
buffer.flip();
new Thread(()->{
while (buffer.hasRemaining()){
int pos = buffer.position();
buffer.mark();
buffer.get();
buffer.reset();
buffer.position(pos + 4);
}
System.out.println("over");
System.exit(0);
}).start();
new Thread(()->{
while (true){
ByteBuffer tmp = buffer.duplicate();
if(tmp.position() == 0){
System.out.println(tmp);
}
}
}).start();
}
```
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[GitHub] [rocketmq] guyinyou commented on issue #6518: multi-threaded bug using bytebuffer
Posted by "guyinyou (via GitHub)" <gi...@apache.org>.
guyinyou commented on issue #6518:
URL: https://github.com/apache/rocketmq/issues/6518#issuecomment-1491477735
When testing after enabling the enableBuildConsumeQueueConcurrently switch, a java.lang.IllegalArgumentException: mark > position is occasionally triggered:
The exception is thrown from the position shown in the figure below
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