Gabriel39 commented on code in PR #66348:
URL: https://github.com/apache/doris/pull/66348#discussion_r3698115428
##########
fe/fe-connector/fe-connector-iceberg/src/main/java/org/apache/doris/connector/iceberg/IcebergScanPlanProvider.java:
##########
@@ -1120,6 +1120,9 @@ private TableScan buildScan(Table table,
IcebergTableHandle handle, Optional<Con
/** Whether this table type's scan can actually honor Iceberg's
snapshot/ref selection APIs. */
private static boolean supportsSnapshotSelection(IcebergTableHandle
handle) {
+ if (!handle.hasSnapshotSelection()) {
Review Comment:
Fixed in 399b6fe356. Planning now short-circuits an explicitly pinned empty
snapshot instead of consulting the table's current snapshot. The regression
test appends the first file after the empty pin and still produces no scan
ranges.
##########
fe/fe-connector/fe-connector-iceberg/src/main/java/org/apache/doris/connector/iceberg/action/IcebergRemoveOrphanFilesAction.java:
##########
@@ -0,0 +1,317 @@
+// 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.doris.connector.iceberg.action;
+
+import org.apache.doris.connector.api.ConnectorColumn;
+import org.apache.doris.connector.api.ConnectorSession;
+import org.apache.doris.connector.api.ConnectorType;
+import org.apache.doris.connector.api.DorisConnectorException;
+import org.apache.doris.connector.api.pushdown.ConnectorPredicate;
+import org.apache.doris.foundation.util.ArgumentParsers;
+
+import com.google.common.collect.Lists;
+import org.apache.iceberg.DataFile;
+import org.apache.iceberg.DeleteFile;
+import org.apache.iceberg.ManifestContent;
+import org.apache.iceberg.ManifestFile;
+import org.apache.iceberg.ManifestFiles;
+import org.apache.iceberg.ManifestReader;
+import org.apache.iceberg.ReachableFileUtil;
+import org.apache.iceberg.Snapshot;
+import org.apache.iceberg.Table;
+import org.apache.iceberg.TableProperties;
+import org.apache.iceberg.io.FileInfo;
+import org.apache.iceberg.io.SupportsPrefixOperations;
+import org.apache.iceberg.util.PropertyUtil;
+
+import java.io.IOException;
+import java.net.URI;
+import java.time.Duration;
+import java.util.ArrayList;
+import java.util.HashSet;
+import java.util.LinkedHashSet;
+import java.util.List;
+import java.util.Locale;
+import java.util.Map;
+import java.util.Objects;
+import java.util.Set;
+
+/** Safely lists or deletes old files that are unreachable from every retained
snapshot. */
+public class IcebergRemoveOrphanFilesAction extends BaseIcebergAction {
+ private static final long MIN_RETENTION_MS =
Duration.ofHours(24).toMillis();
+ public static final String OLDER_THAN = "older_than";
+ public static final String LOCATION = "location";
+ public static final String DRY_RUN = "dry_run";
+
+ public IcebergRemoveOrphanFilesAction(Map<String, String> properties,
List<String> partitionNames,
+ ConnectorPredicate whereCondition) {
+ super("remove_orphan_files", properties, partitionNames,
whereCondition);
+ }
+
+ @Override
+ protected void registerIcebergArguments() {
+ namedArguments.registerRequiredArgument(OLDER_THAN, "Creation time
cutoff in milliseconds",
+ ArgumentParsers.nonNegativeLong(OLDER_THAN));
+ namedArguments.registerOptionalArgument(LOCATION, "Prefix within the
table location",
+ null, ArgumentParsers.nonEmptyString(LOCATION));
+ namedArguments.registerOptionalArgument(DRY_RUN, "Only count orphan
files", true,
+ ArgumentParsers.booleanValue(DRY_RUN));
+ }
+
+ @Override
+ protected void validateIcebergAction() {
+ validateNoPartitions();
+ validateNoWhereCondition();
+ String location = namedArguments.getString(LOCATION);
+ if (location != null) {
+ try {
+ normalizeLocation(location);
+ } catch (IllegalArgumentException e) {
+ throw new DorisConnectorException("Invalid location URI: " +
location, e);
+ }
+ }
+ }
+
+ @Override
+ protected List<String> executeAction(Table table, ConnectorSession
session) {
+ if (!(table.io() instanceof SupportsPrefixOperations)) {
+ throw new DorisConnectorException("remove_orphan_files requires
FileIO prefix listing support");
+ }
+ if (!PropertyUtil.propertyAsBoolean(table.properties(),
TableProperties.GC_ENABLED,
+ TableProperties.GC_ENABLED_DEFAULT)) {
+ // A GC-disabled table may share files with another table, so no
destructive scan is safe.
+ throw new DorisConnectorException("Cannot remove orphan files:
Iceberg GC is disabled");
+ }
+ List<String> scanLocations = resolveScanLocations(table);
+
+ try {
+ ReachableIndex reachable = new
ReachableIndex(collectReachableFiles(table));
+ long orphanCount = 0;
+ long deletedCount = 0;
+ long olderThan = namedArguments.getLong(OLDER_THAN);
+ // The SQL procedure needs a retention fence because concurrent
uploads are not reachable until commit.
+ if (olderThan > System.currentTimeMillis() - MIN_RETENTION_MS) {
+ throw new DorisConnectorException(
+ "older_than must retain at least 24 hours of files");
+ }
+ boolean dryRun = namedArguments.getBoolean(DRY_RUN);
+ Set<String> visitedFiles = new HashSet<>();
+ for (String scanLocation : scanLocations) {
+ // Object stores use raw prefix matching, so the separator
excludes sibling prefixes.
+ String listingPrefix = scanLocation.endsWith("/") ?
scanLocation : scanLocation + "/";
+ for (FileInfo file : ((SupportsPrefixOperations)
table.io()).listPrefix(listingPrefix)) {
+ if (visitedFiles.add(file.location()) &&
file.createdAtMillis() < olderThan
+ && !isReachable(file.location(), reachable)) {
+ orphanCount++;
+ if (!dryRun) {
+ table.io().deleteFile(file.location());
+ deletedCount++;
+ }
+ }
+ }
+ }
+ return Lists.newArrayList(String.valueOf(orphanCount),
String.valueOf(deletedCount));
+ } catch (Exception e) {
+ throw new DorisConnectorException("Failed to remove orphan files:
" + e.getMessage(), e);
+ }
+ }
+
+ private List<String> resolveScanLocations(Table table) {
+ String tableRoot = normalizeLocation(table.location());
+ String dataRoot = normalizeLocation(resolveDataLocation(table,
tableRoot));
+ Set<String> ownedRoots = new LinkedHashSet<>();
Review Comment:
Fixed in 399b6fe356. write.metadata.path is now included as an independently
owned root when it is outside the table and data roots. The root-resolution
test covers separate table, data, and metadata locations.
##########
fe/fe-connector/fe-connector-iceberg/src/main/java/org/apache/doris/connector/iceberg/IcebergWriteContext.java:
##########
@@ -81,12 +89,17 @@ Optional<String> getBranchName() {
/**
* The statement's READ snapshot id (the MVCC pin the scan used, S_read),
threaded from the write
- * handle in {@code planWrite}; {@code -1} = no pin (the legacy
fresh-current behavior). The
+ * handle in {@code planWrite}; {@code -1} means either no pin or an
explicitly empty read, as
+ * distinguished by {@link #isReadSnapshotPinned()}. The
* RowDelta path anchors {@code baseSnapshotId} at this snapshot so the
commit-time removeDeletes
* (option D) and the scan-time deletes BE unions into the new DV share
one snapshot — see
* {@link IcebergConnectorTransaction} [SHOULD-2] / Fix B.
*/
long getReadSnapshotId() {
return readSnapshotId;
}
+
+ boolean isReadSnapshotPinned() {
Review Comment:
Fixed in 399b6fe356. The RowDelta begin guard now checks whether the read
snapshot was pinned, preserving -1 as the empty-table OCC fence. Tests verify
the stored base and that validation from -1 rejects the first concurrent commit.
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: [email protected]
For queries about this service, please contact Infrastructure at:
[email protected]
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
