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https://issues.apache.org/jira/browse/BEAM-12164?focusedWorklogId=750703&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-750703
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ASF GitHub Bot logged work on BEAM-12164:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 31/Mar/22 03:17
Start Date: 31/Mar/22 03:17
Worklog Time Spent: 10m
Work Description: hengfengli commented on a change in pull request #17200:
URL: https://github.com/apache/beam/pull/17200#discussion_r839134116
##########
File path:
sdks/java/io/google-cloud-platform/src/main/java/org/apache/beam/sdk/io/gcp/spanner/changestreams/restriction/ThroughputEstimator.java
##########
@@ -0,0 +1,114 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.beam.sdk.io.gcp.spanner.changestreams.restriction;
+
+import com.google.cloud.Timestamp;
+import java.io.Serializable;
+import java.util.ArrayDeque;
+import java.util.Queue;
+
+/** An estimator to provide an estimate on the throughput of the outputted
elements. */
+public class ThroughputEstimator implements Serializable {
+
+ private static class Pair<K, V> {
Review comment:
Nice tip!
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Issue Time Tracking
-------------------
Worklog Id: (was: 750703)
Time Spent: 63.5h (was: 63h 20m)
> SpannerIO Change Stream Connector
> ---------------------------------
>
> Key: BEAM-12164
> URL: https://issues.apache.org/jira/browse/BEAM-12164
> Project: Beam
> Issue Type: New Feature
> Components: sdk-java-core
> Reporter: Thiago Nunes
> Assignee: Thiago Nunes
> Priority: P2
> Fix For: 2.37.0
>
> Time Spent: 63.5h
> Remaining Estimate: 0h
>
> We would like to augment the existing Google Cloud SpannerIO connector
> ([https://github.com/apache/beam/blob/master/sdks/java/io/google-cloud-platform/src/main/java/org/apache/beam/sdk/io/gcp/spanner/SpannerIO.java)]
> with the support for Spanner Change Streams (CDC). CDC support is just being
> implemented in Spanner and it will be exposed through a gRPC API. We will use
> such API to create a new SpannerIO.readChangeStream(...) implementation.
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