问题
I am using Apache Beam to consume json and insert into clickhouse.
I am currently having a problem with the Array data type.
Everything works fine before I add an array type of field
Schema.Field.of("inputs.value", Schema.FieldType.array(Schema.FieldType.INT64).withNullable(true))
Code for the transformations
p.apply(transformNameSuffix + "ReadFromPubSub",
PubsubIO.readStrings().fromSubscription(chainConfig.getPubSubSubscriptionPrefix() + "transactions").withIdAttribute(PUBSUB_ID_ATTRIBUTE))
.apply(transformNameSuffix + "ReadFromPubSub", ParDo.of(new DoFn<String, Row>() {
@ProcessElement
public void processElement(ProcessContext c) {
String item = c.element();
//System.out.print(item);
Transaction transaction = JsonUtils.parseJson(item, Transaction.class);
c.output(Row.withSchema(Schemas.TRANSACTIONS)
.addValues(*****,
*****
.......
transaction.getInputValues()).build());}
})).setRowSchema(Schemas.TRANSACTIONS).apply(
ClickHouseIO.<Row>write(
chainConfig.getClickhouseJDBCURI(),
chainConfig.getTransactionsTable())
.withMaxRetries(3)
.withMaxInsertBlockSize(1)
.withInitialBackoff(Duration.standardSeconds(5))
.withInsertDeduplicate(true)
.withInsertDistributedSync(false));
The method that generates the inputs
public List<Long> getInputValues() {
List<Long> values = Lists.newArrayList();
for (TransactionInput eachInput : inputs) {
System.out.print(eachInput.getValue());
values.add(eachInput.getValue());
}
return values;
}
The error I am getting is :
ru.yandex.clickhouse.except.ClickHouseException: ClickHouse exception, code: 33, host: 35.202.46.77, port: 8123; Code: 33, e.displayText() = DB::Exception: Cannot read all data. Bytes read: 6. Bytes expected: 15. (version 19.17.4.11 (official build))
at ru.yandex.clickhouse.except.ClickHouseExceptionSpecifier.specify(ClickHouseExceptionSpecifier.java:58)
at ru.yandex.clickhouse.except.ClickHouseExceptionSpecifier.specify(ClickHouseExceptionSpecifier.java:28)
at ru.yandex.clickhouse.ClickHouseStatementImpl.checkForErrorAndThrow(ClickHouseStatementImpl.java:875)
at ru.yandex.clickhouse.ClickHouseStatementImpl.sendStream(ClickHouseStatementImpl.java:851)
at ru.yandex.clickhouse.Writer.send(Writer.java:106)
at ru.yandex.clickhouse.Writer.send(Writer.java:141)
at ru.yandex.clickhouse.ClickHouseStatementImpl.sendRowBinaryStream(ClickHouseStatementImpl.java:764)
at ru.yandex.clickhouse.ClickHouseStatementImpl.sendRowBinaryStream(ClickHouseStatementImpl.java:758)
at org.apache.beam.sdk.io.clickhouse.ClickHouseIO$WriteFn.flush(ClickHouseIO.java:427)
at org.apache.beam.sdk.io.clickhouse.ClickHouseIO$WriteFn.processElement(ClickHouseIO.java:411)
at org.apache.beam.sdk.io.clickhouse.AutoValue_ClickHouseIO_WriteFn$DoFnInvoker.invokeProcessElement(Unknown Source)
at org.apache.beam.repackaged.direct_java.runners.core.SimpleDoFnRunner.invokeProcessElement(SimpleDoFnRunner.java:222)
at org.apache.beam.repackaged.direct_java.runners.core.SimpleDoFnRunner.processElement(SimpleDoFnRunner.java:183)
at org.apache.beam.repackaged.direct_java.runners.core.SimplePushbackSideInputDoFnRunner.processElementInReadyWindows(SimplePushbackSideInputDoFnRunner.java:78)
at org.apache.beam.runners.direct.ParDoEvaluator.processElement(ParDoEvaluator.java:216)
at org.apache.beam.runners.direct.DoFnLifecycleManagerRemovingTransformEvaluator.processElement(DoFnLifecycleManagerRemovingTransformEvaluator.java:54)
at org.apache.beam.runners.direct.DirectTransformExecutor.processElements(DirectTransformExecutor.java:160)
at org.apache.beam.runners.direct.DirectTransformExecutor.run(DirectTransformExecutor.java:124)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.Throwable: Code: 33, e.displayText() = DB::Exception: Cannot read all data. Bytes read: 6. Bytes expected: 15. (version 19.17.4.11 (official build))
at ru.yandex.clickhouse.except.ClickHouseExceptionSpecifier.specify(ClickHouseExceptionSpecifier.java:53)
... 22 more
Feb 06, 2020 9:04:38 PM org.apache.beam.sdk.io.clickhouse.ClickHouseIO$WriteFn flush
WARNING: Error writing to ClickHouse. Retry attempt[1]
ru.yandex.clickhouse.except.ClickHouseException: ClickHouse exception, code: 33, host: 35.202.46.77, port: 8123; Code: 33, e.displayText() = DB::Exception: Cannot read all data. Bytes read: 6. Bytes expected: 93. (version 19.17.4.11 (official build))
at ru.yandex.clickhouse.except.ClickHouseExceptionSpecifier.specify(ClickHouseExceptionSpecifier.java:58)
at ru.yandex.clickhouse.except.ClickHouseExceptionSpecifier.specify(ClickHouseExceptionSpecifier.java:28)
at ru.yandex.clickhouse.ClickHouseStatementImpl.checkForErrorAndThrow(ClickHouseStatementImpl.java:875)
at ru.yandex.clickhouse.ClickHouseStatementImpl.sendStream(ClickHouseStatementImpl.java:851)
at ru.yandex.clickhouse.Writer.send(Writer.java:106)
at ru.yandex.clickhouse.Writer.send(Writer.java:141)
at ru.yandex.clickhouse.ClickHouseStatementImpl.sendRowBinaryStream(ClickHouseStatementImpl.java:764)
at ru.yandex.clickhouse.ClickHouseStatementImpl.sendRowBinaryStream(ClickHouseStatementImpl.java:758)
at org.apache.beam.sdk.io.clickhouse.ClickHouseIO$WriteFn.flush(ClickHouseIO.java:427)
at org.apache.beam.sdk.io.clickhouse.ClickHouseIO$WriteFn.processElement(ClickHouseIO.java:411)
at org.apache.beam.sdk.io.clickhouse.AutoValue_ClickHouseIO_WriteFn$DoFnInvoker.invokeProcessElement(Unknown Source)
at org.apache.beam.repackaged.direct_java.runners.core.SimpleDoFnRunner.invokeProcessElement(SimpleDoFnRunner.java:222)
at org.apache.beam.repackaged.direct_java.runners.core.SimpleDoFnRunner.processElement(SimpleDoFnRunner.java:183)
at org.apache.beam.repackaged.direct_java.runners.core.SimplePushbackSideInputDoFnRunner.processElementInReadyWindows(SimplePushbackSideInputDoFnRunner.java:78)
at org.apache.beam.runners.direct.ParDoEvaluator.processElement(ParDoEvaluator.java:216)
at org.apache.beam.runners.direct.DoFnLifecycleManagerRemovingTransformEvaluator.processElement(DoFnLifecycleManagerRemovingTransformEvaluator.java:54)
at org.apache.beam.runners.direct.DirectTransformExecutor.processElements(DirectTransformExecutor.java:160)
at org.apache.beam.runners.direct.DirectTransformExecutor.run(DirectTransformExecutor.java:124)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.Throwable: Code: 33, e.displayText() = DB::Exception: Cannot read all data. Bytes read: 6. Bytes expected: 93. (version 19.17.4.11 (official build))
at ru.yandex.clickhouse.except.ClickHouseExceptionSpecifier.specify(ClickHouseExceptionSpecifier.java:53)
... 22 more
Feb 06, 2020 9:04:39 PM org.apache.beam.sdk.io.clickhouse.ClickHouseIO$WriteFn flush
WARNING: Error writing to ClickHouse. Retry attempt[1]
ru.yandex.clickhouse.except.ClickHouseException: ClickHouse exception, code: 33, host: 35.202.46.77, port: 8123; Code: 33, e.displayText() = DB::Exception: Cannot read all data. Bytes read: 5. Bytes expected: 2641. (version 19.17.4.11 (official build)
Clikhouse schema:
CREATE TABLE IF NOT EXISTS transactions_streaming_small (
*****,
*****,
inputs Nested ( value Nullable(UInt64) ) )
ENGINE = MergeTree() PARTITION BY toYYYYMM(block_date_time)
What is the problem?
[ClickHouse version 19.17.4.11 (official build)]
来源：https://stackoverflow.com/questions/60098740/array-type-in-clickhouseio-for-apache-beamdataflow