Java Code Examples for org.apache.flink.core.fs.RecoverableWriter#open()
The following examples show how to use
org.apache.flink.core.fs.RecoverableWriter#open() .
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Example 1
Source File: HadoopS3RecoverableWriterExceptionITCase.java From flink with Apache License 2.0 | 6 votes |
@Test(expected = IOException.class) public void testResumeWithWrongOffset() throws Exception { // this is a rather unrealistic scenario, but it is to trigger // truncation of the file and try to resume with missing data. final RecoverableWriter writer = getFileSystem().createRecoverableWriter(); final Path path = new Path(basePathForTest, "part-0"); final RecoverableFsDataOutputStream stream = writer.open(path); stream.write(testData1.getBytes(StandardCharsets.UTF_8)); final RecoverableWriter.ResumeRecoverable recoverable1 = stream.persist(); stream.write(testData2.getBytes(StandardCharsets.UTF_8)); final RecoverableWriter.ResumeRecoverable recoverable2 = stream.persist(); stream.write(testData3.getBytes(StandardCharsets.UTF_8)); final RecoverableFsDataOutputStream recoveredStream = writer.recover(recoverable1); recoveredStream.closeForCommit().commit(); // this should throw an exception final RecoverableFsDataOutputStream newRecoveredStream = writer.recover(recoverable2); newRecoveredStream.closeForCommit().commit(); }
Example 2
Source File: HadoopS3RecoverableWriterITCase.java From Flink-CEPplus with Apache License 2.0 | 6 votes |
@Test(expected = FileNotFoundException.class) public void testCleanupRecoverableState() throws Exception { final RecoverableWriter writer = getRecoverableWriter(); final Path path = new Path(basePathForTest, "part-0"); final RecoverableFsDataOutputStream stream = writer.open(path); stream.write(bytesOf(testData1)); S3Recoverable recoverable = (S3Recoverable) stream.persist(); stream.closeForCommit().commit(); // still the data is there as we have not deleted them from the tmp object final String content = getContentsOfFile(new Path('/' + recoverable.incompleteObjectName())); Assert.assertEquals(testData1, content); boolean successfullyDeletedState = writer.cleanupRecoverableState(recoverable); Assert.assertTrue(successfullyDeletedState); // this should throw the exception as we deleted the file. getContentsOfFile(new Path('/' + recoverable.incompleteObjectName())); }
Example 3
Source File: HadoopS3RecoverableWriterExceptionITCase.java From flink with Apache License 2.0 | 6 votes |
@Test(expected = IOException.class) public void testResumeAfterCommit() throws Exception { final RecoverableWriter writer = getFileSystem().createRecoverableWriter(); final Path path = new Path(basePathForTest, "part-0"); final RecoverableFsDataOutputStream stream = writer.open(path); stream.write(testData1.getBytes(StandardCharsets.UTF_8)); final RecoverableWriter.ResumeRecoverable recoverable = stream.persist(); stream.write(testData2.getBytes(StandardCharsets.UTF_8)); stream.closeForCommit().commit(); final RecoverableFsDataOutputStream recoveredStream = writer.recover(recoverable); recoveredStream.closeForCommit().commit(); }
Example 4
Source File: HadoopS3RecoverableWriterExceptionITCase.java From Flink-CEPplus with Apache License 2.0 | 6 votes |
@Test(expected = IOException.class) public void testResumeAfterCommit() throws Exception { final RecoverableWriter writer = getFileSystem().createRecoverableWriter(); final Path path = new Path(basePathForTest, "part-0"); final RecoverableFsDataOutputStream stream = writer.open(path); stream.write(testData1.getBytes(StandardCharsets.UTF_8)); final RecoverableWriter.ResumeRecoverable recoverable = stream.persist(); stream.write(testData2.getBytes(StandardCharsets.UTF_8)); stream.closeForCommit().commit(); final RecoverableFsDataOutputStream recoveredStream = writer.recover(recoverable); recoveredStream.closeForCommit().commit(); }
Example 5
Source File: HadoopS3RecoverableWriterExceptionITCase.java From Flink-CEPplus with Apache License 2.0 | 6 votes |
@Test(expected = IOException.class) public void testResumeWithWrongOffset() throws Exception { // this is a rather unrealistic scenario, but it is to trigger // truncation of the file and try to resume with missing data. final RecoverableWriter writer = getFileSystem().createRecoverableWriter(); final Path path = new Path(basePathForTest, "part-0"); final RecoverableFsDataOutputStream stream = writer.open(path); stream.write(testData1.getBytes(StandardCharsets.UTF_8)); final RecoverableWriter.ResumeRecoverable recoverable1 = stream.persist(); stream.write(testData2.getBytes(StandardCharsets.UTF_8)); final RecoverableWriter.ResumeRecoverable recoverable2 = stream.persist(); stream.write(testData3.getBytes(StandardCharsets.UTF_8)); final RecoverableFsDataOutputStream recoveredStream = writer.recover(recoverable1); recoveredStream.closeForCommit().commit(); // this should throw an exception final RecoverableFsDataOutputStream newRecoveredStream = writer.recover(recoverable2); newRecoveredStream.closeForCommit().commit(); }
Example 6
Source File: HadoopS3RecoverableWriterITCase.java From flink with Apache License 2.0 | 6 votes |
@Test public void testCallingDeleteObjectTwiceDoesNotThroughException() throws Exception { final RecoverableWriter writer = getRecoverableWriter(); final Path path = new Path(basePathForTest, "part-0"); final RecoverableFsDataOutputStream stream = writer.open(path); stream.write(bytesOf(testData1)); S3Recoverable recoverable = (S3Recoverable) stream.persist(); stream.closeForCommit().commit(); // still the data is there as we have not deleted them from the tmp object final String content = getContentsOfFile(new Path('/' + recoverable.incompleteObjectName())); Assert.assertEquals(testData1, content); boolean successfullyDeletedState = writer.cleanupRecoverableState(recoverable); Assert.assertTrue(successfullyDeletedState); boolean unsuccessfulDeletion = writer.cleanupRecoverableState(recoverable); Assert.assertFalse(unsuccessfulDeletion); }
Example 7
Source File: HadoopS3RecoverableWriterExceptionITCase.java From flink with Apache License 2.0 | 6 votes |
@Test(expected = IOException.class) public void testResumeAfterCommit() throws Exception { final RecoverableWriter writer = getFileSystem().createRecoverableWriter(); final Path path = new Path(basePathForTest, "part-0"); final RecoverableFsDataOutputStream stream = writer.open(path); stream.write(testData1.getBytes(StandardCharsets.UTF_8)); final RecoverableWriter.ResumeRecoverable recoverable = stream.persist(); stream.write(testData2.getBytes(StandardCharsets.UTF_8)); stream.closeForCommit().commit(); final RecoverableFsDataOutputStream recoveredStream = writer.recover(recoverable); recoveredStream.closeForCommit().commit(); }
Example 8
Source File: HadoopS3RecoverableWriterITCase.java From flink with Apache License 2.0 | 6 votes |
@Test(expected = FileNotFoundException.class) public void testCleanupRecoverableState() throws Exception { final RecoverableWriter writer = getRecoverableWriter(); final Path path = new Path(basePathForTest, "part-0"); final RecoverableFsDataOutputStream stream = writer.open(path); stream.write(bytesOf(testData1)); S3Recoverable recoverable = (S3Recoverable) stream.persist(); stream.closeForCommit().commit(); // still the data is there as we have not deleted them from the tmp object final String content = getContentsOfFile(new Path('/' + recoverable.incompleteObjectName())); Assert.assertEquals(testData1, content); boolean successfullyDeletedState = writer.cleanupRecoverableState(recoverable); Assert.assertTrue(successfullyDeletedState); // this should throw the exception as we deleted the file. getContentsOfFile(new Path('/' + recoverable.incompleteObjectName())); }
Example 9
Source File: HadoopRecoverableWriterOldHadoopWithNoTruncateSupportTest.java From flink with Apache License 2.0 | 5 votes |
@Test public void testExceptionThrownWhenRecoveringWithInProgressFile() throws IOException { final RecoverableWriter writerUnderTest = fileSystem.createRecoverableWriter(); final RecoverableFsDataOutputStream stream = writerUnderTest.open(new Path(basePath, "test-2")); final RecoverableWriter.ResumeRecoverable recoverable = stream.persist(); assertNotNull(recoverable); try { writerUnderTest.recover(recoverable); } catch (IOException e) { // this is the expected exception and we check also if the root cause is the hadoop < 2.7 version assertTrue(e.getCause() instanceof IllegalStateException); } }
Example 10
Source File: HadoopS3RecoverableWriterITCase.java From flink with Apache License 2.0 | 5 votes |
@Test public void testCommitAfterPersist() throws Exception { final RecoverableWriter writer = getRecoverableWriter(); final Path path = new Path(basePathForTest, "part-0"); final RecoverableFsDataOutputStream stream = writer.open(path); stream.write(bytesOf(testData1)); stream.persist(); stream.write(bytesOf(testData2)); stream.closeForCommit().commit(); Assert.assertEquals(testData1 + testData2, getContentsOfFile(path)); }
Example 11
Source File: HadoopS3RecoverableWriterITCase.java From flink with Apache License 2.0 | 5 votes |
private void testResumeAfterMultiplePersist( final String persistName, final String expectedFinalContents, final String firstItemToWrite, final String secondItemToWrite, final String thirdItemToWrite) throws Exception { final Path path = new Path(basePathForTest, "part-0"); final RecoverableWriter initWriter = getRecoverableWriter(); final Map<String, RecoverableWriter.ResumeRecoverable> recoverables = new HashMap<>(4); try (final RecoverableFsDataOutputStream stream = initWriter.open(path)) { recoverables.put(INIT_EMPTY_PERSIST, stream.persist()); stream.write(bytesOf(firstItemToWrite)); recoverables.put(INTERM_WITH_STATE_PERSIST, stream.persist()); recoverables.put(INTERM_WITH_NO_ADDITIONAL_STATE_PERSIST, stream.persist()); // and write some more data stream.write(bytesOf(secondItemToWrite)); recoverables.put(FINAL_WITH_EXTRA_STATE, stream.persist()); } final SimpleVersionedSerializer<RecoverableWriter.ResumeRecoverable> serializer = initWriter.getResumeRecoverableSerializer(); final byte[] serializedRecoverable = serializer.serialize(recoverables.get(persistName)); // get a new serializer from a new writer to make sure that no pre-initialized state leaks in. final RecoverableWriter newWriter = getRecoverableWriter(); final SimpleVersionedSerializer<RecoverableWriter.ResumeRecoverable> deserializer = newWriter.getResumeRecoverableSerializer(); final RecoverableWriter.ResumeRecoverable recoveredRecoverable = deserializer.deserialize(serializer.getVersion(), serializedRecoverable); final RecoverableFsDataOutputStream recoveredStream = newWriter.recover(recoveredRecoverable); recoveredStream.write(bytesOf(thirdItemToWrite)); recoveredStream.closeForCommit().commit(); Assert.assertEquals(expectedFinalContents, getContentsOfFile(path)); }
Example 12
Source File: HadoopS3RecoverableWriterITCase.java From flink with Apache License 2.0 | 5 votes |
@Test public void testCommitAfterNormalClose() throws Exception { final RecoverableWriter writer = getRecoverableWriter(); final Path path = new Path(basePathForTest, "part-0"); final RecoverableFsDataOutputStream stream = writer.open(path); stream.write(bytesOf(testData1)); stream.closeForCommit().commit(); Assert.assertEquals(testData1, getContentsOfFile(path)); }
Example 13
Source File: HadoopS3RecoverableWriterITCase.java From flink with Apache License 2.0 | 5 votes |
private void testResumeAfterMultiplePersist( final String persistName, final String expectedFinalContents, final String firstItemToWrite, final String secondItemToWrite, final String thirdItemToWrite) throws Exception { final Path path = new Path(basePathForTest, "part-0"); final RecoverableWriter initWriter = getRecoverableWriter(); final Map<String, RecoverableWriter.ResumeRecoverable> recoverables = new HashMap<>(4); try (final RecoverableFsDataOutputStream stream = initWriter.open(path)) { recoverables.put(INIT_EMPTY_PERSIST, stream.persist()); stream.write(bytesOf(firstItemToWrite)); recoverables.put(INTERM_WITH_STATE_PERSIST, stream.persist()); recoverables.put(INTERM_WITH_NO_ADDITIONAL_STATE_PERSIST, stream.persist()); // and write some more data stream.write(bytesOf(secondItemToWrite)); recoverables.put(FINAL_WITH_EXTRA_STATE, stream.persist()); } final SimpleVersionedSerializer<RecoverableWriter.ResumeRecoverable> serializer = initWriter.getResumeRecoverableSerializer(); final byte[] serializedRecoverable = serializer.serialize(recoverables.get(persistName)); // get a new serializer from a new writer to make sure that no pre-initialized state leaks in. final RecoverableWriter newWriter = getRecoverableWriter(); final SimpleVersionedSerializer<RecoverableWriter.ResumeRecoverable> deserializer = newWriter.getResumeRecoverableSerializer(); final RecoverableWriter.ResumeRecoverable recoveredRecoverable = deserializer.deserialize(serializer.getVersion(), serializedRecoverable); final RecoverableFsDataOutputStream recoveredStream = newWriter.recover(recoveredRecoverable); recoveredStream.write(bytesOf(thirdItemToWrite)); recoveredStream.closeForCommit().commit(); Assert.assertEquals(expectedFinalContents, getContentsOfFile(path)); }
Example 14
Source File: HadoopS3RecoverableWriterITCase.java From flink with Apache License 2.0 | 5 votes |
@Test public void testCommitAfterNormalClose() throws Exception { final RecoverableWriter writer = getRecoverableWriter(); final Path path = new Path(basePathForTest, "part-0"); final RecoverableFsDataOutputStream stream = writer.open(path); stream.write(bytesOf(testData1)); stream.closeForCommit().commit(); Assert.assertEquals(testData1, getContentsOfFile(path)); }
Example 15
Source File: HadoopS3RecoverableWriterITCase.java From flink with Apache License 2.0 | 5 votes |
@Test public void testCloseWithNoData() throws Exception { final RecoverableWriter writer = getRecoverableWriter(); final Path path = new Path(basePathForTest, "part-0"); final RecoverableFsDataOutputStream stream = writer.open(path); stream.closeForCommit().commit(); }
Example 16
Source File: HadoopS3RecoverableWriterITCase.java From Flink-CEPplus with Apache License 2.0 | 5 votes |
private void testResumeAfterMultiplePersist( final String persistName, final String expectedFinalContents, final String firstItemToWrite, final String secondItemToWrite, final String thirdItemToWrite) throws Exception { final Path path = new Path(basePathForTest, "part-0"); final RecoverableWriter initWriter = getRecoverableWriter(); final Map<String, RecoverableWriter.ResumeRecoverable> recoverables = new HashMap<>(4); try (final RecoverableFsDataOutputStream stream = initWriter.open(path)) { recoverables.put(INIT_EMPTY_PERSIST, stream.persist()); stream.write(bytesOf(firstItemToWrite)); recoverables.put(INTERM_WITH_STATE_PERSIST, stream.persist()); recoverables.put(INTERM_WITH_NO_ADDITIONAL_STATE_PERSIST, stream.persist()); // and write some more data stream.write(bytesOf(secondItemToWrite)); recoverables.put(FINAL_WITH_EXTRA_STATE, stream.persist()); } final SimpleVersionedSerializer<RecoverableWriter.ResumeRecoverable> serializer = initWriter.getResumeRecoverableSerializer(); final byte[] serializedRecoverable = serializer.serialize(recoverables.get(persistName)); // get a new serializer from a new writer to make sure that no pre-initialized state leaks in. final RecoverableWriter newWriter = getRecoverableWriter(); final SimpleVersionedSerializer<RecoverableWriter.ResumeRecoverable> deserializer = newWriter.getResumeRecoverableSerializer(); final RecoverableWriter.ResumeRecoverable recoveredRecoverable = deserializer.deserialize(serializer.getVersion(), serializedRecoverable); final RecoverableFsDataOutputStream recoveredStream = newWriter.recover(recoveredRecoverable); recoveredStream.write(bytesOf(thirdItemToWrite)); recoveredStream.closeForCommit().commit(); Assert.assertEquals(expectedFinalContents, getContentsOfFile(path)); }
Example 17
Source File: HadoopS3RecoverableWriterITCase.java From Flink-CEPplus with Apache License 2.0 | 5 votes |
@Test public void testCommitAfterPersist() throws Exception { final RecoverableWriter writer = getRecoverableWriter(); final Path path = new Path(basePathForTest, "part-0"); final RecoverableFsDataOutputStream stream = writer.open(path); stream.write(bytesOf(testData1)); stream.persist(); stream.write(bytesOf(testData2)); stream.closeForCommit().commit(); Assert.assertEquals(testData1 + testData2, getContentsOfFile(path)); }
Example 18
Source File: HadoopS3RecoverableWriterITCase.java From Flink-CEPplus with Apache License 2.0 | 5 votes |
@Test public void testCommitAfterNormalClose() throws Exception { final RecoverableWriter writer = getRecoverableWriter(); final Path path = new Path(basePathForTest, "part-0"); final RecoverableFsDataOutputStream stream = writer.open(path); stream.write(bytesOf(testData1)); stream.closeForCommit().commit(); Assert.assertEquals(testData1, getContentsOfFile(path)); }
Example 19
Source File: HadoopS3RecoverableWriterITCase.java From Flink-CEPplus with Apache License 2.0 | 3 votes |
@Test public void testCommitAfterRecovery() throws Exception { final Path path = new Path(basePathForTest, "part-0"); final RecoverableWriter initWriter = getRecoverableWriter(); final RecoverableFsDataOutputStream stream = initWriter.open(path); stream.write(bytesOf(testData1)); stream.persist(); stream.persist(); // and write some more data stream.write(bytesOf(testData2)); final RecoverableWriter.CommitRecoverable recoverable = stream.closeForCommit().getRecoverable(); final byte[] serializedRecoverable = initWriter.getCommitRecoverableSerializer().serialize(recoverable); // get a new serializer from a new writer to make sure that no pre-initialized state leaks in. final RecoverableWriter newWriter = getRecoverableWriter(); final SimpleVersionedSerializer<RecoverableWriter.CommitRecoverable> deserializer = newWriter.getCommitRecoverableSerializer(); final RecoverableWriter.CommitRecoverable recoveredRecoverable = deserializer.deserialize(deserializer.getVersion(), serializedRecoverable); final RecoverableFsDataOutputStream.Committer committer = newWriter.recoverForCommit(recoveredRecoverable); committer.commitAfterRecovery(); Assert.assertEquals(testData1 + testData2, getContentsOfFile(path)); }
Example 20
Source File: HadoopS3RecoverableWriterITCase.java From flink with Apache License 2.0 | 3 votes |
@Test public void testCommitAfterRecovery() throws Exception { final Path path = new Path(basePathForTest, "part-0"); final RecoverableWriter initWriter = getRecoverableWriter(); final RecoverableFsDataOutputStream stream = initWriter.open(path); stream.write(bytesOf(testData1)); stream.persist(); stream.persist(); // and write some more data stream.write(bytesOf(testData2)); final RecoverableWriter.CommitRecoverable recoverable = stream.closeForCommit().getRecoverable(); final byte[] serializedRecoverable = initWriter.getCommitRecoverableSerializer().serialize(recoverable); // get a new serializer from a new writer to make sure that no pre-initialized state leaks in. final RecoverableWriter newWriter = getRecoverableWriter(); final SimpleVersionedSerializer<RecoverableWriter.CommitRecoverable> deserializer = newWriter.getCommitRecoverableSerializer(); final RecoverableWriter.CommitRecoverable recoveredRecoverable = deserializer.deserialize(deserializer.getVersion(), serializedRecoverable); final RecoverableFsDataOutputStream.Committer committer = newWriter.recoverForCommit(recoveredRecoverable); committer.commitAfterRecovery(); Assert.assertEquals(testData1 + testData2, getContentsOfFile(path)); }