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Posted to commits@hudi.apache.org by GitBox <gi...@apache.org> on 2022/05/26 13:27:13 UTC
[GitHub] [hudi] garyli1019 commented on a diff in pull request #5677: [HUDI-4152] Flink offline compaction support compacting multi compaction plan at once
garyli1019 commented on code in PR #5677:
URL: https://github.com/apache/hudi/pull/5677#discussion_r882665986
##########
hudi-flink-datasource/hudi-flink/src/main/java/org/apache/hudi/sink/compact/HoodieFlinkCompactor.java:
##########
@@ -218,74 +228,112 @@ private void compact() throws Exception {
}
// fetch the instant based on the configured execution sequence
- HoodieTimeline timeline = table.getActiveTimeline().filterPendingCompactionTimeline();
- Option<HoodieInstant> requested = CompactionUtil.isLIFO(cfg.compactionSeq) ? timeline.lastInstant() : timeline.firstInstant();
- if (!requested.isPresent()) {
+ HoodieTimeline timeline = table.getActiveTimeline();
+ List<HoodieInstant> requested = ((CompactionPlanSelectStrategy) ReflectionUtils.loadClass(cfg.compactionPlanSelectStrategy))
+ .select(timeline.filterPendingCompactionTimeline(), cfg);
+ if (requested.isEmpty()) {
// do nothing.
LOG.info("No compaction plan scheduled, turns on the compaction plan schedule with --schedule option");
return;
}
- String compactionInstantTime = requested.get().getTimestamp();
-
- HoodieInstant inflightInstant = HoodieTimeline.getCompactionInflightInstant(compactionInstantTime);
- if (timeline.containsInstant(inflightInstant)) {
- LOG.info("Rollback inflight compaction instant: [" + compactionInstantTime + "]");
- table.rollbackInflightCompaction(inflightInstant);
- table.getMetaClient().reloadActiveTimeline();
- }
+ List<String> compactionInstantTimes = requested.stream().map(HoodieInstant::getTimestamp).collect(Collectors.toList());
+ compactionInstantTimes.forEach(timestamp -> {
+ HoodieInstant inflightInstant = HoodieTimeline.getCompactionInflightInstant(timestamp);
+ if (timeline.containsInstant(inflightInstant)) {
+ LOG.info("Rollback inflight compaction instant: [" + timestamp + "]");
+ table.rollbackInflightCompaction(inflightInstant);
+ table.getMetaClient().reloadActiveTimeline();
+ }
+ });
- // generate compaction plan
+ // generate timestamp and compaction plan pair
// should support configurable commit metadata
- HoodieCompactionPlan compactionPlan = CompactionUtils.getCompactionPlan(
- table.getMetaClient(), compactionInstantTime);
-
- if (compactionPlan == null || (compactionPlan.getOperations() == null)
- || (compactionPlan.getOperations().isEmpty())) {
+ List<Pair<String, HoodieCompactionPlan>> compactionPlans = compactionInstantTimes.stream()
+ .map(timestamp -> {
+ try {
+ return Pair.of(timestamp, CompactionUtils.getCompactionPlan(table.getMetaClient(), timestamp));
+ } catch (IOException e) {
+ throw new HoodieException(e);
+ }
+ })
+ // reject empty compaction plan
+ .filter(pair -> !(pair.getRight() == null
+ || pair.getRight().getOperations() == null
+ || pair.getRight().getOperations().isEmpty()))
+ .collect(Collectors.toList());
+
+ if (compactionPlans.isEmpty()) {
// No compaction plan, do nothing and return.
- LOG.info("No compaction plan for instant " + compactionInstantTime);
+ LOG.info("No compaction plan for instant " + String.join(",", compactionInstantTimes));
return;
}
- HoodieInstant instant = HoodieTimeline.getCompactionRequestedInstant(compactionInstantTime);
+ List<HoodieInstant> instants = compactionInstantTimes.stream().map(HoodieTimeline::getCompactionRequestedInstant).collect(Collectors.toList());
HoodieTimeline pendingCompactionTimeline = table.getActiveTimeline().filterPendingCompactionTimeline();
- if (!pendingCompactionTimeline.containsInstant(instant)) {
- // this means that the compaction plan was written to auxiliary path(.tmp)
- // but not the meta path(.hoodie), this usually happens when the job crush
- // exceptionally.
-
- // clean the compaction plan in auxiliary path and cancels the compaction.
-
- LOG.warn("The compaction plan was fetched through the auxiliary path(.tmp) but not the meta path(.hoodie).\n"
- + "Clean the compaction plan in auxiliary path and cancels the compaction");
- CompactionUtil.cleanInstant(table.getMetaClient(), instant);
- return;
+ for (HoodieInstant instant : instants) {
+ if (!pendingCompactionTimeline.containsInstant(instant)) {
+ // this means that the compaction plan was written to auxiliary path(.tmp)
+ // but not the meta path(.hoodie), this usually happens when the job crush
+ // exceptionally.
+ // clean the compaction plan in auxiliary path and cancels the compaction.
+ LOG.warn("The compaction plan was fetched through the auxiliary path(.tmp) but not the meta path(.hoodie).\n"
+ + "Clean the compaction plan in auxiliary path and cancels the compaction");
+ CompactionUtil.cleanInstant(table.getMetaClient(), instant);
+ return;
+ }
}
// get compactionParallelism.
int compactionParallelism = conf.getInteger(FlinkOptions.COMPACTION_TASKS) == -1
- ? compactionPlan.getOperations().size() : conf.getInteger(FlinkOptions.COMPACTION_TASKS);
+ ? Math.toIntExact(compactionPlans.stream().mapToLong(pair -> pair.getRight().getOperations().size()).sum())
+ : conf.getInteger(FlinkOptions.COMPACTION_TASKS);
- LOG.info("Start to compaction for instant " + compactionInstantTime);
+ LOG.info("Start to compaction for instant " + compactionInstantTimes);
// Mark instant as compaction inflight
- table.getActiveTimeline().transitionCompactionRequestedToInflight(instant);
+ for (HoodieInstant instant : instants) {
+ table.getActiveTimeline().transitionCompactionRequestedToInflight(instant);
+ }
table.getMetaClient().reloadActiveTimeline();
- env.addSource(new CompactionPlanSourceFunction(compactionPlan, compactionInstantTime))
- .name("compaction_source")
- .uid("uid_compaction_source")
- .rebalance()
+ // use side-output to make operations that is in the same plan to be placed in the same stream
+ // keyby() cannot sure that different operations are in the different stream
+ Pair<String, HoodieCompactionPlan> firstPlan = compactionPlans.get(0);
+ DataStream<CompactionPlanEvent> source = env.addSource(new CompactionPlanSourceFunction(firstPlan.getRight(), firstPlan.getLeft()))
+ .name("compaction_source " + firstPlan.getLeft())
+ .uid("uid_compaction_source " + firstPlan.getLeft());
+ if (compactionPlans.size() > 1) {
+ for (Pair<String, HoodieCompactionPlan> pair : compactionPlans.subList(1, compactionPlans.size())) {
+ source = source.union(env.addSource(new CompactionPlanSourceFunction(pair.getRight(), pair.getLeft()))
Review Comment:
can we pass a list of compaction plan to the source function then we don't need this union?
##########
hudi-flink-datasource/hudi-flink/src/main/java/org/apache/hudi/sink/compact/strategy/MultiCompactionPlanSelectStrategy.java:
##########
@@ -0,0 +1,42 @@
+/*
+ * 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.hudi.sink.compact.strategy;
+
+import java.util.Collections;
+import java.util.List;
+import java.util.stream.Collectors;
+import org.apache.hudi.common.table.timeline.HoodieInstant;
+import org.apache.hudi.common.table.timeline.HoodieTimeline;
+import org.apache.hudi.sink.compact.FlinkCompactionConfig;
+import org.apache.hudi.util.CompactionUtil;
+
+/**
+ * Select multi compaction plan to compact
+ */
+public class MultiCompactionPlanSelectStrategy implements CompactionPlanSelectStrategy {
Review Comment:
Can we have UT for each strategy
##########
hudi-flink-datasource/hudi-flink/src/main/java/org/apache/hudi/sink/compact/HoodieFlinkCompactor.java:
##########
@@ -218,74 +228,112 @@ private void compact() throws Exception {
}
// fetch the instant based on the configured execution sequence
- HoodieTimeline timeline = table.getActiveTimeline().filterPendingCompactionTimeline();
- Option<HoodieInstant> requested = CompactionUtil.isLIFO(cfg.compactionSeq) ? timeline.lastInstant() : timeline.firstInstant();
- if (!requested.isPresent()) {
+ HoodieTimeline timeline = table.getActiveTimeline();
+ List<HoodieInstant> requested = ((CompactionPlanSelectStrategy) ReflectionUtils.loadClass(cfg.compactionPlanSelectStrategy))
+ .select(timeline.filterPendingCompactionTimeline(), cfg);
+ if (requested.isEmpty()) {
// do nothing.
LOG.info("No compaction plan scheduled, turns on the compaction plan schedule with --schedule option");
return;
}
- String compactionInstantTime = requested.get().getTimestamp();
-
- HoodieInstant inflightInstant = HoodieTimeline.getCompactionInflightInstant(compactionInstantTime);
- if (timeline.containsInstant(inflightInstant)) {
- LOG.info("Rollback inflight compaction instant: [" + compactionInstantTime + "]");
- table.rollbackInflightCompaction(inflightInstant);
- table.getMetaClient().reloadActiveTimeline();
- }
+ List<String> compactionInstantTimes = requested.stream().map(HoodieInstant::getTimestamp).collect(Collectors.toList());
+ compactionInstantTimes.forEach(timestamp -> {
+ HoodieInstant inflightInstant = HoodieTimeline.getCompactionInflightInstant(timestamp);
+ if (timeline.containsInstant(inflightInstant)) {
+ LOG.info("Rollback inflight compaction instant: [" + timestamp + "]");
+ table.rollbackInflightCompaction(inflightInstant);
+ table.getMetaClient().reloadActiveTimeline();
+ }
+ });
- // generate compaction plan
+ // generate timestamp and compaction plan pair
// should support configurable commit metadata
- HoodieCompactionPlan compactionPlan = CompactionUtils.getCompactionPlan(
- table.getMetaClient(), compactionInstantTime);
-
- if (compactionPlan == null || (compactionPlan.getOperations() == null)
- || (compactionPlan.getOperations().isEmpty())) {
+ List<Pair<String, HoodieCompactionPlan>> compactionPlans = compactionInstantTimes.stream()
+ .map(timestamp -> {
+ try {
+ return Pair.of(timestamp, CompactionUtils.getCompactionPlan(table.getMetaClient(), timestamp));
+ } catch (IOException e) {
+ throw new HoodieException(e);
+ }
+ })
+ // reject empty compaction plan
+ .filter(pair -> !(pair.getRight() == null
+ || pair.getRight().getOperations() == null
+ || pair.getRight().getOperations().isEmpty()))
+ .collect(Collectors.toList());
+
+ if (compactionPlans.isEmpty()) {
// No compaction plan, do nothing and return.
- LOG.info("No compaction plan for instant " + compactionInstantTime);
+ LOG.info("No compaction plan for instant " + String.join(",", compactionInstantTimes));
return;
}
- HoodieInstant instant = HoodieTimeline.getCompactionRequestedInstant(compactionInstantTime);
+ List<HoodieInstant> instants = compactionInstantTimes.stream().map(HoodieTimeline::getCompactionRequestedInstant).collect(Collectors.toList());
HoodieTimeline pendingCompactionTimeline = table.getActiveTimeline().filterPendingCompactionTimeline();
- if (!pendingCompactionTimeline.containsInstant(instant)) {
- // this means that the compaction plan was written to auxiliary path(.tmp)
- // but not the meta path(.hoodie), this usually happens when the job crush
- // exceptionally.
-
- // clean the compaction plan in auxiliary path and cancels the compaction.
-
- LOG.warn("The compaction plan was fetched through the auxiliary path(.tmp) but not the meta path(.hoodie).\n"
- + "Clean the compaction plan in auxiliary path and cancels the compaction");
- CompactionUtil.cleanInstant(table.getMetaClient(), instant);
- return;
+ for (HoodieInstant instant : instants) {
+ if (!pendingCompactionTimeline.containsInstant(instant)) {
+ // this means that the compaction plan was written to auxiliary path(.tmp)
+ // but not the meta path(.hoodie), this usually happens when the job crush
+ // exceptionally.
+ // clean the compaction plan in auxiliary path and cancels the compaction.
+ LOG.warn("The compaction plan was fetched through the auxiliary path(.tmp) but not the meta path(.hoodie).\n"
+ + "Clean the compaction plan in auxiliary path and cancels the compaction");
+ CompactionUtil.cleanInstant(table.getMetaClient(), instant);
+ return;
+ }
}
// get compactionParallelism.
int compactionParallelism = conf.getInteger(FlinkOptions.COMPACTION_TASKS) == -1
- ? compactionPlan.getOperations().size() : conf.getInteger(FlinkOptions.COMPACTION_TASKS);
+ ? Math.toIntExact(compactionPlans.stream().mapToLong(pair -> pair.getRight().getOperations().size()).sum())
+ : conf.getInteger(FlinkOptions.COMPACTION_TASKS);
- LOG.info("Start to compaction for instant " + compactionInstantTime);
+ LOG.info("Start to compaction for instant " + compactionInstantTimes);
// Mark instant as compaction inflight
- table.getActiveTimeline().transitionCompactionRequestedToInflight(instant);
+ for (HoodieInstant instant : instants) {
+ table.getActiveTimeline().transitionCompactionRequestedToInflight(instant);
+ }
table.getMetaClient().reloadActiveTimeline();
- env.addSource(new CompactionPlanSourceFunction(compactionPlan, compactionInstantTime))
- .name("compaction_source")
- .uid("uid_compaction_source")
- .rebalance()
+ // use side-output to make operations that is in the same plan to be placed in the same stream
+ // keyby() cannot sure that different operations are in the different stream
+ Pair<String, HoodieCompactionPlan> firstPlan = compactionPlans.get(0);
+ DataStream<CompactionPlanEvent> source = env.addSource(new CompactionPlanSourceFunction(firstPlan.getRight(), firstPlan.getLeft()))
+ .name("compaction_source " + firstPlan.getLeft())
+ .uid("uid_compaction_source " + firstPlan.getLeft());
+ if (compactionPlans.size() > 1) {
+ for (Pair<String, HoodieCompactionPlan> pair : compactionPlans.subList(1, compactionPlans.size())) {
+ source = source.union(env.addSource(new CompactionPlanSourceFunction(pair.getRight(), pair.getLeft()))
+ .name("compaction_source " + pair.getLeft())
+ .uid("uid_compaction_source_" + pair.getLeft()));
+ }
+ }
+
+ SingleOutputStreamOperator<Void> operator = source.rebalance()
.transform("compact_task",
TypeInformation.of(CompactionCommitEvent.class),
new ProcessOperator<>(new CompactFunction(conf)))
.setParallelism(compactionParallelism)
- .addSink(new CompactionCommitSink(conf))
- .name("clean_commits")
- .uid("uid_clean_commits")
+ .process(new ProcessFunction<CompactionCommitEvent, Void>() {
+ @Override
+ public void processElement(CompactionCommitEvent event, ProcessFunction<CompactionCommitEvent, Void>.Context context, Collector<Void> out) {
+ context.output(new OutputTag<>(event.getInstant(), TypeInformation.of(CompactionCommitEvent.class)), event);
+ }
+ })
+ .name("group_by_compaction_plan")
+ .uid("uid_group_by_compaction_plan")
.setParallelism(1);
- env.execute("flink_hudi_compaction_" + compactionInstantTime);
+ compactionPlans.forEach(pair ->
+ operator.getSideOutput(new OutputTag<>(pair.getLeft(), TypeInformation.of(CompactionCommitEvent.class)))
+ .addSink(new CompactionCommitSink(conf))
+ .name("clean_commits " + pair.getLeft())
+ .uid("uid_clean_commits_" + pair.getLeft())
+ .setParallelism(1));
+
+ env.execute("flink_hudi_compaction_" + String.join(",", compactionInstantTimes));
Review Comment:
Can we have IT for the compactor to ensure this will work?
##########
hudi-flink-datasource/hudi-flink/src/main/java/org/apache/hudi/sink/compact/HoodieFlinkCompactor.java:
##########
@@ -218,74 +228,112 @@ private void compact() throws Exception {
}
// fetch the instant based on the configured execution sequence
- HoodieTimeline timeline = table.getActiveTimeline().filterPendingCompactionTimeline();
- Option<HoodieInstant> requested = CompactionUtil.isLIFO(cfg.compactionSeq) ? timeline.lastInstant() : timeline.firstInstant();
- if (!requested.isPresent()) {
+ HoodieTimeline timeline = table.getActiveTimeline();
+ List<HoodieInstant> requested = ((CompactionPlanSelectStrategy) ReflectionUtils.loadClass(cfg.compactionPlanSelectStrategy))
+ .select(timeline.filterPendingCompactionTimeline(), cfg);
+ if (requested.isEmpty()) {
// do nothing.
LOG.info("No compaction plan scheduled, turns on the compaction plan schedule with --schedule option");
return;
}
- String compactionInstantTime = requested.get().getTimestamp();
-
- HoodieInstant inflightInstant = HoodieTimeline.getCompactionInflightInstant(compactionInstantTime);
- if (timeline.containsInstant(inflightInstant)) {
- LOG.info("Rollback inflight compaction instant: [" + compactionInstantTime + "]");
- table.rollbackInflightCompaction(inflightInstant);
- table.getMetaClient().reloadActiveTimeline();
- }
+ List<String> compactionInstantTimes = requested.stream().map(HoodieInstant::getTimestamp).collect(Collectors.toList());
+ compactionInstantTimes.forEach(timestamp -> {
+ HoodieInstant inflightInstant = HoodieTimeline.getCompactionInflightInstant(timestamp);
+ if (timeline.containsInstant(inflightInstant)) {
+ LOG.info("Rollback inflight compaction instant: [" + timestamp + "]");
+ table.rollbackInflightCompaction(inflightInstant);
+ table.getMetaClient().reloadActiveTimeline();
+ }
+ });
- // generate compaction plan
+ // generate timestamp and compaction plan pair
// should support configurable commit metadata
- HoodieCompactionPlan compactionPlan = CompactionUtils.getCompactionPlan(
- table.getMetaClient(), compactionInstantTime);
-
- if (compactionPlan == null || (compactionPlan.getOperations() == null)
- || (compactionPlan.getOperations().isEmpty())) {
+ List<Pair<String, HoodieCompactionPlan>> compactionPlans = compactionInstantTimes.stream()
+ .map(timestamp -> {
+ try {
+ return Pair.of(timestamp, CompactionUtils.getCompactionPlan(table.getMetaClient(), timestamp));
+ } catch (IOException e) {
+ throw new HoodieException(e);
+ }
+ })
+ // reject empty compaction plan
+ .filter(pair -> !(pair.getRight() == null
+ || pair.getRight().getOperations() == null
+ || pair.getRight().getOperations().isEmpty()))
+ .collect(Collectors.toList());
+
+ if (compactionPlans.isEmpty()) {
// No compaction plan, do nothing and return.
- LOG.info("No compaction plan for instant " + compactionInstantTime);
+ LOG.info("No compaction plan for instant " + String.join(",", compactionInstantTimes));
return;
}
- HoodieInstant instant = HoodieTimeline.getCompactionRequestedInstant(compactionInstantTime);
+ List<HoodieInstant> instants = compactionInstantTimes.stream().map(HoodieTimeline::getCompactionRequestedInstant).collect(Collectors.toList());
HoodieTimeline pendingCompactionTimeline = table.getActiveTimeline().filterPendingCompactionTimeline();
- if (!pendingCompactionTimeline.containsInstant(instant)) {
- // this means that the compaction plan was written to auxiliary path(.tmp)
- // but not the meta path(.hoodie), this usually happens when the job crush
- // exceptionally.
-
- // clean the compaction plan in auxiliary path and cancels the compaction.
-
- LOG.warn("The compaction plan was fetched through the auxiliary path(.tmp) but not the meta path(.hoodie).\n"
- + "Clean the compaction plan in auxiliary path and cancels the compaction");
- CompactionUtil.cleanInstant(table.getMetaClient(), instant);
- return;
+ for (HoodieInstant instant : instants) {
+ if (!pendingCompactionTimeline.containsInstant(instant)) {
+ // this means that the compaction plan was written to auxiliary path(.tmp)
+ // but not the meta path(.hoodie), this usually happens when the job crush
+ // exceptionally.
+ // clean the compaction plan in auxiliary path and cancels the compaction.
+ LOG.warn("The compaction plan was fetched through the auxiliary path(.tmp) but not the meta path(.hoodie).\n"
+ + "Clean the compaction plan in auxiliary path and cancels the compaction");
+ CompactionUtil.cleanInstant(table.getMetaClient(), instant);
+ return;
+ }
}
// get compactionParallelism.
int compactionParallelism = conf.getInteger(FlinkOptions.COMPACTION_TASKS) == -1
- ? compactionPlan.getOperations().size() : conf.getInteger(FlinkOptions.COMPACTION_TASKS);
+ ? Math.toIntExact(compactionPlans.stream().mapToLong(pair -> pair.getRight().getOperations().size()).sum())
+ : conf.getInteger(FlinkOptions.COMPACTION_TASKS);
- LOG.info("Start to compaction for instant " + compactionInstantTime);
+ LOG.info("Start to compaction for instant " + compactionInstantTimes);
// Mark instant as compaction inflight
- table.getActiveTimeline().transitionCompactionRequestedToInflight(instant);
+ for (HoodieInstant instant : instants) {
+ table.getActiveTimeline().transitionCompactionRequestedToInflight(instant);
+ }
table.getMetaClient().reloadActiveTimeline();
- env.addSource(new CompactionPlanSourceFunction(compactionPlan, compactionInstantTime))
- .name("compaction_source")
- .uid("uid_compaction_source")
- .rebalance()
+ // use side-output to make operations that is in the same plan to be placed in the same stream
+ // keyby() cannot sure that different operations are in the different stream
+ Pair<String, HoodieCompactionPlan> firstPlan = compactionPlans.get(0);
+ DataStream<CompactionPlanEvent> source = env.addSource(new CompactionPlanSourceFunction(firstPlan.getRight(), firstPlan.getLeft()))
+ .name("compaction_source " + firstPlan.getLeft())
+ .uid("uid_compaction_source " + firstPlan.getLeft());
+ if (compactionPlans.size() > 1) {
+ for (Pair<String, HoodieCompactionPlan> pair : compactionPlans.subList(1, compactionPlans.size())) {
+ source = source.union(env.addSource(new CompactionPlanSourceFunction(pair.getRight(), pair.getLeft()))
+ .name("compaction_source " + pair.getLeft())
+ .uid("uid_compaction_source_" + pair.getLeft()));
+ }
+ }
+
+ SingleOutputStreamOperator<Void> operator = source.rebalance()
.transform("compact_task",
TypeInformation.of(CompactionCommitEvent.class),
new ProcessOperator<>(new CompactFunction(conf)))
.setParallelism(compactionParallelism)
- .addSink(new CompactionCommitSink(conf))
- .name("clean_commits")
- .uid("uid_clean_commits")
+ .process(new ProcessFunction<CompactionCommitEvent, Void>() {
+ @Override
+ public void processElement(CompactionCommitEvent event, ProcessFunction<CompactionCommitEvent, Void>.Context context, Collector<Void> out) {
+ context.output(new OutputTag<>(event.getInstant(), TypeInformation.of(CompactionCommitEvent.class)), event);
+ }
+ })
+ .name("group_by_compaction_plan")
+ .uid("uid_group_by_compaction_plan")
.setParallelism(1);
- env.execute("flink_hudi_compaction_" + compactionInstantTime);
+ compactionPlans.forEach(pair ->
+ operator.getSideOutput(new OutputTag<>(pair.getLeft(), TypeInformation.of(CompactionCommitEvent.class)))
+ .addSink(new CompactionCommitSink(conf))
Review Comment:
no change needed for the CompactionCommitSink?
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