Github user NicoK commented on a diff in the pull request:
https://github.com/apache/flink/pull/4485#discussion_r132673916
--- Diff:
flink-runtime/src/main/java/org/apache/flink/runtime/io/network/buffer/NetworkBufferPool.java
---
@@ -221,13 +228,44 @@ public BufferPool createBufferPool(int
numRequiredBuffers, int maxUsedBuffers) t
}
@Override
+ public BufferPool createFixedBufferPool(int numRequiredBuffers) throws
IOException {
+ synchronized (factoryLock) {
+ if (isDestroyed) {
+ throw new IllegalStateException("Network buffer
pool has already been destroyed.");
+ }
+
+ // Ensure that the number of required buffers can be
satisfied.
+ if (numTotalRequiredBuffers + numRequiredBuffers >
totalNumberOfMemorySegments) {
+ throw new
IOException(String.format("Insufficient number of network buffers: " +
--- End diff --
why not keep the whole message as in `#createBufferPool`?
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