otterc commented on a change in pull request #30433:
URL: https://github.com/apache/spark/pull/30433#discussion_r538952136
##########
File path:
common/network-shuffle/src/test/java/org/apache/spark/network/shuffle/RemoteBlockPushResolverSuite.java
##########
@@ -411,6 +415,269 @@ void deleteExecutorDirs(Path[] dirs) {
}
}
+ @Test
+ public void testRecoverIndexFileAfterIOExceptions() throws IOException {
+ useTestFiles(true, false);
+ RemoteBlockPushResolver.PushBlockStreamCallback callback1 =
+ (RemoteBlockPushResolver.PushBlockStreamCallback)
pushResolver.receiveBlockDataAsStream(
+ new PushBlockStream(TEST_APP, 0, 0, 0, 0));
+ callback1.onData(callback1.getID(), ByteBuffer.wrap(new byte[4]));
+ callback1.onComplete(callback1.getID());
+ RemoteBlockPushResolver.AppShufflePartitionInfo partitionInfo =
callback1.getPartitionInfo();
+ // Close the index stream so it throws IOException
+ TestMergeShuffleFile testIndexFile = (TestMergeShuffleFile)
partitionInfo.getIndexFile();
+ testIndexFile.close();
+ StreamCallbackWithID callback2 = pushResolver.receiveBlockDataAsStream(
+ new PushBlockStream(TEST_APP, 0, 1, 0, 0));
+ callback2.onData(callback2.getID(), ByteBuffer.wrap(new byte[5]));
+ // This will complete without any IOExceptions because number of
IOExceptions are less than
+ // the threshold but the update to index file will be unsuccessful.
+ callback2.onComplete(callback2.getID());
+ assertEquals("index position", 16, testIndexFile.getPos());
+ // Restore the index stream so it can write successfully again.
+ testIndexFile.restore();
+ StreamCallbackWithID callback3 = pushResolver.receiveBlockDataAsStream(
+ new PushBlockStream(TEST_APP, 0, 2, 0, 0));
+ callback3.onData(callback3.getID(), ByteBuffer.wrap(new byte[2]));
+ callback3.onComplete(callback3.getID());
+ assertEquals("index position", 24, testIndexFile.getPos());
+ MergeStatuses statuses = pushResolver.finalizeShuffleMerge(
+ new FinalizeShuffleMerge(TEST_APP, 0));
+ validateMergeStatuses(statuses, new int[] {0}, new long[] {11});
+ MergedBlockMeta blockMeta = pushResolver.getMergedBlockMeta(TEST_APP, 0,
0);
+ validateChunks(TEST_APP, 0, 0, blockMeta, new int[] {4, 7}, new int[][]
{{0}, {1, 2}});
+ }
+
+ @Test
+ public void testRecoverIndexFileAfterIOExceptionsInFinalize() throws
IOException {
+ useTestFiles(true, false);
+ registerExecutor(TEST_APP, prepareLocalDirs(localDirs));
+ RemoteBlockPushResolver.PushBlockStreamCallback callback1 =
+ (RemoteBlockPushResolver.PushBlockStreamCallback)
pushResolver.receiveBlockDataAsStream(
+ new PushBlockStream(TEST_APP, 0, 0, 0, 0));
+ callback1.onData(callback1.getID(), ByteBuffer.wrap(new byte[4]));
+ callback1.onComplete(callback1.getID());
+ RemoteBlockPushResolver.AppShufflePartitionInfo partitionInfo =
callback1.getPartitionInfo();
+ // Close the index stream so it throws IOException
+ TestMergeShuffleFile testIndexFile = (TestMergeShuffleFile)
partitionInfo.getIndexFile();
+ testIndexFile.close();
+ StreamCallbackWithID callback2 = pushResolver.receiveBlockDataAsStream(
+ new PushBlockStream(TEST_APP, 0, 1, 0, 0));
+ callback2.onData(callback2.getID(), ByteBuffer.wrap(new byte[5]));
+ // This will complete without any IOExceptions because number of
IOExceptions are less than
+ // the threshold but the update to index file will be unsuccessful.
+ callback2.onComplete(callback2.getID());
+ assertEquals("index position", 16, testIndexFile.getPos());
+ // The last update to index was unsuccessful however any further updates
will be successful.
+ // Restore the index stream so it can write successfully again.
+ testIndexFile.restore();
+ MergeStatuses statuses = pushResolver.finalizeShuffleMerge(
+ new FinalizeShuffleMerge(TEST_APP, 0));
+ assertEquals("index position", 24, testIndexFile.getPos());
+ validateMergeStatuses(statuses, new int[] {0}, new long[] {9});
+ MergedBlockMeta blockMeta = pushResolver.getMergedBlockMeta(TEST_APP, 0,
0);
+ validateChunks(TEST_APP, 0, 0, blockMeta, new int[] {4, 5}, new int[][]
{{0}, {1}});
+ }
+
+ @Test
+ public void testRecoverMetaFileAfterIOExceptions() throws IOException {
+ useTestFiles(false, true);
+ RemoteBlockPushResolver.PushBlockStreamCallback callback1 =
+ (RemoteBlockPushResolver.PushBlockStreamCallback)
pushResolver.receiveBlockDataAsStream(
+ new PushBlockStream(TEST_APP, 0, 0, 0, 0));
+ callback1.onData(callback1.getID(), ByteBuffer.wrap(new byte[4]));
+ callback1.onComplete(callback1.getID());
+ RemoteBlockPushResolver.AppShufflePartitionInfo partitionInfo =
callback1.getPartitionInfo();
+ // Close the meta stream so it throws IOException
+ TestMergeShuffleFile testMetaFile = (TestMergeShuffleFile)
partitionInfo.getMetaFile();
+ long metaPosBeforeClose = testMetaFile.getPos();
+ testMetaFile.close();
+ StreamCallbackWithID callback2 = pushResolver.receiveBlockDataAsStream(
+ new PushBlockStream(TEST_APP, 0, 1, 0, 0));
+ callback2.onData(callback2.getID(), ByteBuffer.wrap(new byte[5]));
+ // This will complete without any IOExceptions because number of
IOExceptions are less than
+ // the threshold but the update to index and meta file will be
unsuccessful.
+ callback2.onComplete(callback2.getID());
+ assertEquals("index position", 16, partitionInfo.getIndexFile().getPos());
+ assertEquals("meta position", metaPosBeforeClose, testMetaFile.getPos());
+ // Restore the meta stream so it can write successfully again.
+ testMetaFile.restore();
+ StreamCallbackWithID callback3 = pushResolver.receiveBlockDataAsStream(
+ new PushBlockStream(TEST_APP, 0, 2, 0, 0));
+ callback3.onData(callback3.getID(), ByteBuffer.wrap(new byte[2]));
+ callback3.onComplete(callback3.getID());
+ assertEquals("index position", 24, partitionInfo.getIndexFile().getPos());
+ assertTrue("meta position", testMetaFile.getPos() > metaPosBeforeClose);
+ MergeStatuses statuses = pushResolver.finalizeShuffleMerge(
+ new FinalizeShuffleMerge(TEST_APP, 0));
+ validateMergeStatuses(statuses, new int[] {0}, new long[] {11});
+ MergedBlockMeta blockMeta = pushResolver.getMergedBlockMeta(TEST_APP, 0,
0);
+ validateChunks(TEST_APP, 0, 0, blockMeta, new int[] {4, 7}, new int[][]
{{0}, {1, 2}});
+ }
+
+ @Test
+ public void testRecoverMetaFileAfterIOExceptionsInFinalize() throws
IOException {
+ useTestFiles(false, true);
+ RemoteBlockPushResolver.PushBlockStreamCallback callback1 =
+ (RemoteBlockPushResolver.PushBlockStreamCallback)
pushResolver.receiveBlockDataAsStream(
+ new PushBlockStream(TEST_APP, 0, 0, 0, 0));
+ callback1.onData(callback1.getID(), ByteBuffer.wrap(new byte[4]));
+ callback1.onComplete(callback1.getID());
+ RemoteBlockPushResolver.AppShufflePartitionInfo partitionInfo =
callback1.getPartitionInfo();
+ // Close the meta stream so it throws IOException
+ TestMergeShuffleFile testMetaFile = (TestMergeShuffleFile)
partitionInfo.getMetaFile();
+ long metaPosBeforeClose = testMetaFile.getPos();
+ testMetaFile.close();
+ StreamCallbackWithID callback2 = pushResolver.receiveBlockDataAsStream(
+ new PushBlockStream(TEST_APP, 0, 1, 0, 0));
+ callback2.onData(callback2.getID(), ByteBuffer.wrap(new byte[5]));
+ // This will complete without any IOExceptions because number of
IOExceptions are less than
+ // the threshold but the update to index and meta file will be
unsuccessful.
+ callback2.onComplete(callback2.getID());
+ MergeShuffleFile indexFile = partitionInfo.getIndexFile();
+ assertEquals("index position", 16, indexFile.getPos());
+ assertEquals("meta position", metaPosBeforeClose, testMetaFile.getPos());
+ // Restore the meta stream so it can write successfully again.
+ testMetaFile.restore();
+ MergeStatuses statuses = pushResolver.finalizeShuffleMerge(
+ new FinalizeShuffleMerge(TEST_APP, 0));
+ assertEquals("index position", 24, indexFile.getPos());
+ assertTrue("meta position", testMetaFile.getPos() > metaPosBeforeClose);
+ validateMergeStatuses(statuses, new int[] {0}, new long[] {9});
+ MergedBlockMeta blockMeta = pushResolver.getMergedBlockMeta(TEST_APP, 0,
0);
+ validateChunks(TEST_APP, 0, 0, blockMeta, new int[] {4, 5}, new int[][]
{{0}, {1}});
+ }
+
+ @Test (expected = RuntimeException.class)
+ public void testIOExceptionsExceededThreshold() throws IOException {
+ RemoteBlockPushResolver.PushBlockStreamCallback callback =
+ (RemoteBlockPushResolver.PushBlockStreamCallback)
pushResolver.receiveBlockDataAsStream(
+ new PushBlockStream(TEST_APP, 0, 0, 0, 0));
+ RemoteBlockPushResolver.AppShufflePartitionInfo partitionInfo =
callback.getPartitionInfo();
+ callback.onData(callback.getID(), ByteBuffer.wrap(new byte[4]));
+ callback.onComplete(callback.getID());
+ // Close the data stream so it throws continuous IOException
+ partitionInfo.getDataChannel().close();
+ for (int i = 1; i < 5; i++) {
+ RemoteBlockPushResolver.PushBlockStreamCallback callback1 =
+ (RemoteBlockPushResolver.PushBlockStreamCallback)
pushResolver.receiveBlockDataAsStream(
+ new PushBlockStream(TEST_APP, 0, i, 0, 0));
+ try {
+ callback1.onData(callback1.getID(), ByteBuffer.wrap(new byte[2]));
+ } catch (IOException ioe) {
+ // this will throw IOException so the client can retry.
+ callback1.onFailure(callback1.getID(), ioe);
+ }
+ }
+ assertEquals(4, partitionInfo.getNumIOExceptions());
+ // After 4 IOException, the server will respond with IOExceptions exceeded
threshold
+ try {
+ RemoteBlockPushResolver.PushBlockStreamCallback callback2 =
+ (RemoteBlockPushResolver.PushBlockStreamCallback)
pushResolver.receiveBlockDataAsStream(
+ new PushBlockStream(TEST_APP, 0, 5, 0, 0));
+ callback2.onData(callback.getID(), ByteBuffer.wrap(new byte[1]));
+ } catch (Throwable t) {
+ assertEquals("IOExceptions exceeded the threshold when merging
shufflePush_0_5_0",
+ t.getMessage());
+ throw t;
+ }
Review comment:
> I actually mean those blocks which are waiting for the partition lock
at the same time.
I see. That's a good point. The server would attempt to merge them. If they
don't see any IOExceptions, which is unlikely, they will be merged. Do you
think we should check before writing them?
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