feat: PCES can use either birth round or generation (#10808)

Signed-off-by: Austin Littley <[email protected]> Signed-off-by: Cody Littley <[email protected]> Co-authored-by: Austin Littley <[email protected]>
hashgraph · Jan 11, 2024 · 688f3d5 · 688f3d5
1 parent a1d62b6
commit 688f3d5
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Showing 29 changed files with 1,709 additions and 1,236 deletions.
diff --git a/.../java/com/swirlds/demo/virtualmerkle/transaction/pool/AccountTransactionFactoryTests.java b/.../java/com/swirlds/demo/virtualmerkle/transaction/pool/AccountTransactionFactoryTests.java
@@ -27,8 +27,10 @@
 import com.swirlds.merkle.map.test.pta.MapKey;
 import java.util.ArrayList;
 import java.util.List;
+import org.junit.jupiter.api.Disabled;
 import org.junit.jupiter.api.Test;
 
+@Disabled("flaky")
 class AccountTransactionFactoryTests {
 
     /**

diff --git a/platform-sdk/swirlds-platform-core/src/main/java/com/swirlds/platform/SwirldsPlatform.java b/platform-sdk/swirlds-platform-core/src/main/java/com/swirlds/platform/SwirldsPlatform.java
@@ -79,6 +79,7 @@
 import com.swirlds.platform.dispatch.DispatchConfiguration;
 import com.swirlds.platform.dispatch.triggers.flow.DiskStateLoadedTrigger;
 import com.swirlds.platform.dispatch.triggers.flow.ReconnectStateLoadedTrigger;
+import com.swirlds.platform.event.AncientMode;
 import com.swirlds.platform.event.EventCounter;
 import com.swirlds.platform.event.GossipEvent;
 import com.swirlds.platform.event.creation.EventCreationManager;
@@ -440,15 +441,25 @@ public class SwirldsPlatform implements Platform {
         try {
             final Path databaseDirectory = getDatabaseDirectory(platformContext, selfId);
 
+            // When we perform the migration to using birth round bounding, we will need to read
+            // the old type and start writing the new type.
+            final AncientMode currentFileType = platformContext
+                            .getConfiguration()
+                            .getConfigData(EventConfig.class)
+                            .useBirthRoundAncientThreshold()
+                    ? AncientMode.BIRTH_ROUND_THRESHOLD
+                    : AncientMode.GENERATION_THRESHOLD;
+
             initialPcesFiles = PcesFileReader.readFilesFromDisk(
                     platformContext,
                     recycleBin,
                     databaseDirectory,
                     initialState.getRound(),
-                    preconsensusEventStreamConfig.permitGaps());
+                    preconsensusEventStreamConfig.permitGaps(),
+                    currentFileType);
 
-            preconsensusEventFileManager = new PcesFileManager(
-                    platformContext, Time.getCurrent(), initialPcesFiles, selfId, initialState.getRound());
+            preconsensusEventFileManager =
+                    new PcesFileManager(platformContext, initialPcesFiles, selfId, initialState.getRound());
         } catch (final IOException e) {
             throw new UncheckedIOException(e);
         }
@@ -791,7 +802,6 @@ public class SwirldsPlatform implements Platform {
 
             platformWiring.updateNonAncientEventWindow(NonAncientEventWindow.createUsingPlatformContext(
                     initialState.getRound(), initialMinimumGenerationNonAncient, platformContext));
-            platformWiring.updateMinimumGenerationNonAncient(initialState.getMinRoundGeneration());
 
             // We don't want to invoke these callbacks until after we are starting up.
             final long round = initialState.getRound();
@@ -977,7 +987,6 @@ private void loadReconnectState(final SignedState signedState) {
                             signedState.getState().getPlatformState().getAddressBook()));
             platformWiring.updateNonAncientEventWindow(NonAncientEventWindow.createUsingPlatformContext(
                     signedState.getRound(), signedState.getMinRoundGeneration(), platformContext));
-            platformWiring.updateMinimumGenerationNonAncient(signedState.getMinRoundGeneration());
 
             consensusRoundHandler.loadDataFromSignedState(signedState, true);
 

diff --git a/platform-sdk/swirlds-platform-core/src/main/java/com/swirlds/platform/event/GossipEvent.java b/platform-sdk/swirlds-platform-core/src/main/java/com/swirlds/platform/event/GossipEvent.java
@@ -202,6 +202,9 @@ public void buildDescriptor() {
         this.descriptor = hashedData.createEventDescriptor();
     }
 
+    /**
+     * {@inheritDoc}
+     */
     @Override
     public long getGeneration() {
         return hashedData.getGeneration();

diff --git a/...rm-core/src/main/java/com/swirlds/platform/event/preconsensus/BestEffortPcesFileCopy.java b/...rm-core/src/main/java/com/swirlds/platform/event/preconsensus/BestEffortPcesFileCopy.java
@@ -57,18 +57,18 @@ private BestEffortPcesFileCopy() {}
      * fail as a result. This method retries several times if a failure is encountered. Success is not guaranteed, but
      * success or failure is atomic and will not throw an exception.
      *
-     * @param platformContext             the platform context
-     * @param selfId                      the id of this node
-     * @param destinationDirectory        the directory where the state is being written
-     * @param minimumGenerationNonAncient the minimum generation of events that are not ancient, with respect to the
-     *                                    state that is being written
-     * @param round                       the round of the state that is being written
+     * @param platformContext      the platform context
+     * @param selfId               the id of this node
+     * @param destinationDirectory the directory where the state is being written
+     * @param lowerBound           the lower bound of events that are not ancient, with respect to the state that is
+     *                             being written
+     * @param round                the round of the state that is being written
      */
     public static void copyPcesFilesRetryOnFailure(
             @NonNull final PlatformContext platformContext,
             @NonNull final NodeId selfId,
             @NonNull final Path destinationDirectory,
-            final long minimumGenerationNonAncient,
+            final long lowerBound,
             final long round) {
 
         final boolean copyPreconsensusStream = platformContext
@@ -89,8 +89,7 @@ public static void copyPcesFilesRetryOnFailure(
             try {
                 executeAndRename(
                         pcesDestination,
-                        temporaryDirectory -> copyPcesFiles(
-                                platformContext, selfId, temporaryDirectory, minimumGenerationNonAncient));
+                        temporaryDirectory -> copyPcesFiles(platformContext, selfId, temporaryDirectory, lowerBound));
 
                 return;
             } catch (final IOException | UncheckedIOException e) {
@@ -122,17 +121,17 @@ public static void copyPcesFilesRetryOnFailure(
      * real production states and streams, in the short term. In the longer term we should consider alternate and
      * cleaner strategies.
      *
-     * @param platformContext             the platform context
-     * @param selfId                      the id of this node
-     * @param destinationDirectory        the directory where the PCES files should be written
-     * @param minimumGenerationNonAncient the minimum generation of events that are not ancient, with respect to the
-     *                                    state that is being written
+     * @param platformContext      the platform context
+     * @param selfId               the id of this node
+     * @param destinationDirectory the directory where the PCES files should be written
+     * @param lowerBound           the lower bound of events that are not ancient, with respect to the state that is
+     *                             being written
      */
     private static void copyPcesFiles(
             @NonNull final PlatformContext platformContext,
             @NonNull final NodeId selfId,
             @NonNull final Path destinationDirectory,
-            final long minimumGenerationNonAncient)
+            final long lowerBound)
             throws IOException {
 
         final List<PcesFile> allFiles = gatherPcesFilesOnDisk(selfId, platformContext);
@@ -144,7 +143,7 @@ private static void copyPcesFiles(
         Collections.sort(allFiles);
 
         // Discard all files that either have an incorrect origin or that do not contain non-ancient events.
-        final List<PcesFile> filesToCopy = getRequiredPcesFiles(allFiles, minimumGenerationNonAncient);
+        final List<PcesFile> filesToCopy = getRequiredPcesFiles(allFiles, lowerBound);
         if (filesToCopy.isEmpty()) {
             return;
         }
@@ -156,51 +155,48 @@ private static void copyPcesFiles(
      * Get the preconsensus files that we need to copy to a state. We need any file that has a matching origin and that
      * contains non-ancient events (w.r.t. the state).
      *
-     * @param allFiles                    all PCES files on disk
-     * @param minimumGenerationNonAncient the minimum generation of events that are not ancient, with respect to the
-     *                                    state that is being written
+     * @param allFiles   all PCES files on disk
+     * @param lowerBound the lower bound of events that are not ancient, with respect to the state that is being
+     *                   written
      * @return the list of files to copy
      */
     @NonNull
-    private static List<PcesFile> getRequiredPcesFiles(
-            @NonNull final List<PcesFile> allFiles, final long minimumGenerationNonAncient) {
+    private static List<PcesFile> getRequiredPcesFiles(@NonNull final List<PcesFile> allFiles, final long lowerBound) {
 
         final List<PcesFile> filesToCopy = new ArrayList<>();
         final PcesFile lastFile = allFiles.get(allFiles.size() - 1);
         for (final PcesFile file : allFiles) {
-            if (file.getOrigin() == lastFile.getOrigin()
-                    && file.getMaximumGeneration() >= minimumGenerationNonAncient) {
+            if (file.getOrigin() == lastFile.getOrigin() && file.getUpperBound() >= lowerBound) {
                 filesToCopy.add(file);
             }
         }
 
         if (filesToCopy.isEmpty()) {
             logger.warn(
                     STATE_TO_DISK.getMarker(),
-                    "No preconsensus event files meeting specified criteria found to copy. "
-                            + "Minimum generation non-ancient: {}",
-                    minimumGenerationNonAncient);
+                    "No preconsensus event files meeting specified criteria found to copy. Lower bound: {}",
+                    lowerBound);
         } else if (filesToCopy.size() == 1) {
             logger.info(
                     STATE_TO_DISK.getMarker(),
                     """
                             Found 1 preconsensus event file meeting specified criteria to copy.
-                                Minimum generation non-ancient: {}
+                                Lower bound: {}
                                 File: {}
                             """,
-                    minimumGenerationNonAncient,
+                    lowerBound,
                     filesToCopy.get(0).getPath());
         } else {
             logger.info(
                     STATE_TO_DISK.getMarker(),
                     """
                             Found {} preconsensus event files meeting specified criteria to copy.
-                                Minimum generation non-ancient: {}
+                                Lower bound: {}
                                 First file to copy: {}
                                 Last file to copy: {}
                             """,
                     filesToCopy.size(),
-                    minimumGenerationNonAncient,
+                    lowerBound,
                     filesToCopy.get(0).getPath(),
                     filesToCopy.get(filesToCopy.size() - 1).getPath());
         }