[jira] [Created] (FLINK-33137) FLIP-312: Prometheus Sink Connector
Lorenzo Nicora created FLINK-33137: -- Summary: FLIP-312: Prometheus Sink Connector Key: FLINK-33137 URL: https://issues.apache.org/jira/browse/FLINK-33137 Project: Flink Issue Type: New Feature Reporter: Lorenzo Nicora Umbrella Jira for implementation of Prometheus Sink Connector https://cwiki.apache.org/confluence/display/FLINK/FLIP-312:+Prometheus+Sink+Connector -- This message was sent by Atlassian Jira (v8.20.10#820010)
[jira] [Created] (FLINK-33138) Prometheus Connector Sink - DataStream API implementation
Lorenzo Nicora created FLINK-33138: -- Summary: Prometheus Connector Sink - DataStream API implementation Key: FLINK-33138 URL: https://issues.apache.org/jira/browse/FLINK-33138 Project: Flink Issue Type: Sub-task Reporter: Lorenzo Nicora -- This message was sent by Atlassian Jira (v8.20.10#820010)
[jira] [Created] (FLINK-33139) Prometheus Sink Connector - Table API support
Lorenzo Nicora created FLINK-33139: -- Summary: Prometheus Sink Connector - Table API support Key: FLINK-33139 URL: https://issues.apache.org/jira/browse/FLINK-33139 Project: Flink Issue Type: Sub-task Reporter: Lorenzo Nicora -- This message was sent by Atlassian Jira (v8.20.10#820010)
[jira] [Created] (FLINK-33140) Prometheus Sink Connector - E2E test
Lorenzo Nicora created FLINK-33140: -- Summary: Prometheus Sink Connector - E2E test Key: FLINK-33140 URL: https://issues.apache.org/jira/browse/FLINK-33140 Project: Flink Issue Type: Sub-task Reporter: Lorenzo Nicora -- This message was sent by Atlassian Jira (v8.20.10#820010)
[jira] [Created] (FLINK-33142) Prometheus Sink Connector - Update Documentation
Lorenzo Nicora created FLINK-33142: -- Summary: Prometheus Sink Connector - Update Documentation Key: FLINK-33142 URL: https://issues.apache.org/jira/browse/FLINK-33142 Project: Flink Issue Type: Sub-task Components: Documentation Reporter: Lorenzo Nicora -- This message was sent by Atlassian Jira (v8.20.10#820010)
[jira] [Created] (FLINK-33141) Promentheus Sink Connector - Amazon Managed Prometheus Request Signer
Lorenzo Nicora created FLINK-33141: -- Summary: Promentheus Sink Connector - Amazon Managed Prometheus Request Signer Key: FLINK-33141 URL: https://issues.apache.org/jira/browse/FLINK-33141 Project: Flink Issue Type: Sub-task Components: Connectors / AWS Reporter: Lorenzo Nicora -- This message was sent by Atlassian Jira (v8.20.10#820010)
[jira] [Created] (FLINK-33152) Prometheus Sink Connector - Integration tests
Lorenzo Nicora created FLINK-33152: -- Summary: Prometheus Sink Connector - Integration tests Key: FLINK-33152 URL: https://issues.apache.org/jira/browse/FLINK-33152 Project: Flink Issue Type: Sub-task Reporter: Lorenzo Nicora Integration tests against containerised Prometheus -- This message was sent by Atlassian Jira (v8.20.10#820010)
[jira] [Created] (FLINK-36008) Guidance for connector docs contributions
Lorenzo Nicora created FLINK-36008:
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Summary: Guidance for connector docs contributions
Key: FLINK-36008
URL: https://issues.apache.org/jira/browse/FLINK-36008
Project: Flink
Issue Type: Improvement
Components: Documentation
Reporter: Lorenzo Nicora
The [Docs
README]([https://github.com/apache/flink/tree/master/docs#include-externally-hosted-documentation)]
has some guidance about generating docs of connectors.
However, this only works for docs already in the official connector repo
({{{}apache/flink-connector-{}}}).
If you are working on a PR to docs of an existing connector or you are
contributing to a new connector, how to generate the preview of your WIP docs
is not obvious at all.
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[jira] [Created] (FLINK-17486) ClassCastException when copying AVRO SpecificRecord containing a decimal field
Lorenzo Nicora created FLINK-17486:
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Summary: ClassCastException when copying AVRO SpecificRecord
containing a decimal field
Key: FLINK-17486
URL: https://issues.apache.org/jira/browse/FLINK-17486
Project: Flink
Issue Type: Bug
Components: Formats (JSON, Avro, Parquet, ORC, SequenceFile)
Affects Versions: 1.10.0
Environment: Flink 1.10.0
AVRO 1.9.2
Java 1.8.0 (but also Java 14)
Scala binary 2.11
Reporter: Lorenzo Nicora
When consuming from a Kafka source AVRO SpecificRecord containing a {{decimal}}
(logical type) field, copying the record fails with:
{{java.lang.ClassCastException: class java.math.BigDecimal cannot be cast to
class java.nio.ByteBuffer}}
This code reproduces the problem:
{{AvroSerializer serializer = new AvroSerializer<>(Sample.class);}}
{{Sample s1 = Sample.newBuilder()}}
{{ .setPrice(BigDecimal.valueOf(42.32))}}
{{ .setId("A12345")}}
{{ .build();}}
{{Sample s2 = serializer.copy(s1);}}
The AVRO SpecificRecord is generated using avro-maven-plugin from this IDL:
{{@namespace("example.avro")}}
{{protocol SampleProtocol {}}
{{ record Sample{}}
{{ string id;}}
{{ decimal(9,2) price;}}
{{ timestamp_ms eventTime;}}
{{ }}}
{{}}}
The deepCopy of the record happens behind the scenes when attaching an
AssignerWithPeriodicWatermark to a Kafka Source consuming AVRO SpecificRecord
and using Confluent Schema Registry. The assigned extracts the event time from
the record and enabling bookmarking (not sure whether this is related)
A simplified version of the application is
[here|[https://github.com/nicusX/flink-avro-bug|https://github.com/nicusX/flink-avro-bug/blob/master/src/main/java/example/StreamJob.java]].
The problem looks similar to AVRO-1895 but that issue has been fixed since AVRO
1.8.2 (I'm using AVRO 1.9.2)
In fact, the following code doing deepCopy and only relying on AVRO does work:
{{Sample s1 = Sample.newBuilder()}}
{{ .setPrice(BigDecimal.valueOf(42.32))}}
{{ .setId("A12345")}}
{{ .build();}}
{{Sample s2 = Sample.newBuilder(s1).build();}}
A simplified version of the Flink application causing the problem is
[here|[https://github.com/nicusX/flink-avro-bug/blob/master/src/main/java/example/StreamJob.java]].
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[jira] [Created] (FLINK-18223) AvroSerializer does not correctly instantiate GenericRecord
Lorenzo Nicora created FLINK-18223:
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Summary: AvroSerializer does not correctly instantiate
GenericRecord
Key: FLINK-18223
URL: https://issues.apache.org/jira/browse/FLINK-18223
Project: Flink
Issue Type: Bug
Components: Formats (JSON, Avro, Parquet, ORC, SequenceFile)
Affects Versions: 1.10.1
Reporter: Lorenzo Nicora
{{AvroSerializer.createInstance()}} simply calls
{{InstantiationUtil.instantiate(type)}} to create a new instance, also when
type is GenericRecord.
This fails with an exception, because a GenericRecord must be instantiated
through {{GenericRecordBuilder}} but {{InstantiationUtil}} is not aware of it.
{code:java}
The class 'org.apache.avro.generic.GenericRecord' is not instantiable: The
class is not a proper class. It is either abstract, an interface, or a
primitive type.{code}
This can be proven with this test
{code:java}
@Test
public void shouldInstantiateGenericRecord() {
org.apache.avro.Schema SCHEMA = new
org.apache.avro.Schema.Parser().parse("{\"type\":\"record\",\"name\":\"Dummy\",\"namespace\":\"dummy\",\"fields\":[{\"name\":\"something\",\"type\":{\"type\":\"string\",\"avro.java.string\":\"String\"}}]}");
AvroSerializer serializer = new
AvroSerializer<>(GenericRecord.class, SCHEMA);
serializer.createInstance();
}
{code}
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