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Posted to commits@pulsar.apache.org by GitBox <gi...@apache.org> on 2020/11/03 13:30:34 UTC

[GitHub] [pulsar] congbobo184 opened a new pull request #8426: [Transaction]Transaction pendingack server implement patch

congbobo184 opened a new pull request #8426:
URL: https://github.com/apache/pulsar/pull/8426


   Fix #7981 
   this PR patch #8256 
   ## Motivation
   - we need to support transaction pending-ack stat, and we need to support bacth ack.
   
   ## implement
   
   - client ack with transaction will carry only this ack bit set 1 1 1 1 1 0 1 1,the 6 point is this transaction ack bit set point.
   
   ### Verifying this change
   Add the tests for it
   
   Does this pull request potentially affect one of the following parts:
   If yes was chosen, please highlight the changes
   
   Dependencies (does it add or upgrade a dependency): (no)
   The public API: (no)
   The schema: (no)
   The default values of configurations: (no)
   The wire protocol: (no)
   The rest endpoints: (no)
   The admin cli options: (no)
   Anything that affects deployment: (no)
   
   


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[GitHub] [pulsar] wolfstudy merged pull request #8426: [Transaction]Transaction pendingack server implement patch

Posted by GitBox <gi...@apache.org>.
wolfstudy merged pull request #8426:
URL: https://github.com/apache/pulsar/pull/8426


   


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[GitHub] [pulsar] gaoran10 commented on a change in pull request #8426: [Transaction]Transaction pendingack server implement patch

Posted by GitBox <gi...@apache.org>.
gaoran10 commented on a change in pull request #8426:
URL: https://github.com/apache/pulsar/pull/8426#discussion_r520264126



##########
File path: managed-ledger/src/main/java/org/apache/bookkeeper/mledger/impl/ManagedCursorImpl.java
##########
@@ -2773,6 +2773,24 @@ public boolean isMessageDeleted(Position position) {
                 ((PositionImpl) position).getEntryId()) || ((PositionImpl) position).compareTo(markDeletePosition) <= 0 ;
     }
 
+    //this method will return the a copy of the position's ack set

Review comment:
       ```suggestion
       //this method will return a copy of the position's ack set
   ```




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[GitHub] [pulsar] congbobo184 commented on pull request #8426: [Transaction]Transaction pendingack server implement patch

Posted by GitBox <gi...@apache.org>.
congbobo184 commented on pull request #8426:
URL: https://github.com/apache/pulsar/pull/8426#issuecomment-720493776






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[GitHub] [pulsar] codelipenghui commented on a change in pull request #8426: [Transaction]Transaction pendingack server implement patch

Posted by GitBox <gi...@apache.org>.
codelipenghui commented on a change in pull request #8426:
URL: https://github.com/apache/pulsar/pull/8426#discussion_r518639270



##########
File path: managed-ledger/src/main/java/org/apache/bookkeeper/mledger/util/PositionAckSetUtil.java
##########
@@ -0,0 +1,96 @@
+/**
+ * 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.bookkeeper.mledger.util;
+
+import com.google.common.collect.ComparisonChain;
+import org.apache.bookkeeper.mledger.impl.PositionImpl;
+import org.apache.pulsar.common.util.collections.BitSetRecyclable;
+
+public class PositionAckSetUtil {
+
+    //This method is to compare two ack set whether overlap or not
+    public static boolean isAckSetOverlap(long[] currentAckSet, long[] otherAckSet) {
+        if (currentAckSet == null || otherAckSet == null) {
+            return false;
+        }
+
+        BitSetRecyclable currentBitSet = BitSetRecyclable.valueOf(currentAckSet);
+        BitSetRecyclable otherBitSet = BitSetRecyclable.valueOf(otherAckSet);
+        currentBitSet.flip(0, currentBitSet.size());
+        otherBitSet.flip(0, otherBitSet.size());
+        currentBitSet.and(otherBitSet);
+        boolean isAckSetRepeated = !currentBitSet.isEmpty();
+        currentBitSet.recycle();
+        otherBitSet.recycle();
+        return isAckSetRepeated;
+    }
+
+    //This method is do `and` operation for position's ack set
+    public static void andAckSet(PositionImpl currentPosition, PositionImpl otherPosition) {
+        if (currentPosition == null || otherPosition == null) {
+            return;
+        }
+        BitSetRecyclable thisAckSet = BitSetRecyclable.valueOf(currentPosition.getAckSet());
+        BitSetRecyclable otherAckSet = BitSetRecyclable.valueOf(otherPosition.getAckSet());
+        thisAckSet.and(otherAckSet);
+        currentPosition.setAckSet(thisAckSet.toLongArray());
+        thisAckSet.recycle();
+        otherAckSet.recycle();
+    }
+
+    //This method is compare two position which position is bigger than another one.
+    //When the ledgerId and entryId in this position is same to another one and two position all have ack set, it will
+    //compare the ack set next bit index is bigger than another one.
+    public static int compareToWithAckSet(PositionImpl currentPosition,PositionImpl otherPosition) {
+        if (currentPosition == null || otherPosition ==null) {
+            return -1;
+        }
+        int result = ComparisonChain.start().compare(currentPosition.getLedgerId(),
+                otherPosition.getLedgerId()).compare(currentPosition.getEntryId(), otherPosition.getEntryId())
+                .result();
+        if (result == 0) {
+            if (otherPosition.getAckSet() == null) {
+                return result;
+            }

Review comment:
       Why otherPosition's ackSet is null then return the result?

##########
File path: managed-ledger/src/main/java/org/apache/bookkeeper/mledger/util/PositionAckSetUtil.java
##########
@@ -0,0 +1,96 @@
+/**
+ * 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.bookkeeper.mledger.util;
+
+import com.google.common.collect.ComparisonChain;
+import org.apache.bookkeeper.mledger.impl.PositionImpl;
+import org.apache.pulsar.common.util.collections.BitSetRecyclable;
+
+public class PositionAckSetUtil {
+
+    //This method is to compare two ack set whether overlap or not
+    public static boolean isAckSetOverlap(long[] currentAckSet, long[] otherAckSet) {
+        if (currentAckSet == null || otherAckSet == null) {
+            return false;
+        }
+
+        BitSetRecyclable currentBitSet = BitSetRecyclable.valueOf(currentAckSet);
+        BitSetRecyclable otherBitSet = BitSetRecyclable.valueOf(otherAckSet);
+        currentBitSet.flip(0, currentBitSet.size());
+        otherBitSet.flip(0, otherBitSet.size());
+        currentBitSet.and(otherBitSet);
+        boolean isAckSetRepeated = !currentBitSet.isEmpty();
+        currentBitSet.recycle();
+        otherBitSet.recycle();
+        return isAckSetRepeated;
+    }
+
+    //This method is do `and` operation for position's ack set
+    public static void andAckSet(PositionImpl currentPosition, PositionImpl otherPosition) {
+        if (currentPosition == null || otherPosition == null) {
+            return;
+        }
+        BitSetRecyclable thisAckSet = BitSetRecyclable.valueOf(currentPosition.getAckSet());
+        BitSetRecyclable otherAckSet = BitSetRecyclable.valueOf(otherPosition.getAckSet());
+        thisAckSet.and(otherAckSet);
+        currentPosition.setAckSet(thisAckSet.toLongArray());
+        thisAckSet.recycle();
+        otherAckSet.recycle();
+    }
+
+    //This method is compare two position which position is bigger than another one.
+    //When the ledgerId and entryId in this position is same to another one and two position all have ack set, it will
+    //compare the ack set next bit index is bigger than another one.
+    public static int compareToWithAckSet(PositionImpl currentPosition,PositionImpl otherPosition) {
+        if (currentPosition == null || otherPosition ==null) {
+            return -1;
+        }
+        int result = ComparisonChain.start().compare(currentPosition.getLedgerId(),
+                otherPosition.getLedgerId()).compare(currentPosition.getEntryId(), otherPosition.getEntryId())
+                .result();
+        if (result == 0) {
+            if (otherPosition.getAckSet() == null) {
+                return result;
+            }
+
+            BitSetRecyclable otherAckSet;
+            if (currentPosition.getAckSet() == null) {
+                if (otherPosition.getAckSet() != null) {
+                    otherAckSet = BitSetRecyclable.valueOf(otherPosition.getAckSet());
+                    if (otherAckSet.isEmpty()) {
+                        otherAckSet.recycle();
+                        return result;
+                    } else {
+                        otherAckSet.recycle();
+                        return 1;
+                    }
+
+                }
+                return result;
+            }
+            otherAckSet = BitSetRecyclable.valueOf(otherPosition.getAckSet());
+            BitSetRecyclable thisAckSet = BitSetRecyclable.valueOf(currentPosition.getAckSet());
+            result = thisAckSet.nextSetBit(0) - otherAckSet.nextSetBit(0);
+            otherAckSet.recycle();
+            thisAckSet.recycle();

Review comment:
       I think we can use an empty ackset to simplify these lines.

##########
File path: managed-ledger/src/main/java/org/apache/bookkeeper/mledger/util/PositionAckSetUtil.java
##########
@@ -0,0 +1,96 @@
+/**
+ * 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.bookkeeper.mledger.util;
+
+import com.google.common.collect.ComparisonChain;
+import org.apache.bookkeeper.mledger.impl.PositionImpl;
+import org.apache.pulsar.common.util.collections.BitSetRecyclable;
+
+public class PositionAckSetUtil {
+
+    //This method is to compare two ack set whether overlap or not
+    public static boolean isAckSetOverlap(long[] currentAckSet, long[] otherAckSet) {
+        if (currentAckSet == null || otherAckSet == null) {
+            return false;
+        }
+
+        BitSetRecyclable currentBitSet = BitSetRecyclable.valueOf(currentAckSet);
+        BitSetRecyclable otherBitSet = BitSetRecyclable.valueOf(otherAckSet);
+        currentBitSet.flip(0, currentBitSet.size());
+        otherBitSet.flip(0, otherBitSet.size());
+        currentBitSet.and(otherBitSet);
+        boolean isAckSetRepeated = !currentBitSet.isEmpty();
+        currentBitSet.recycle();
+        otherBitSet.recycle();
+        return isAckSetRepeated;
+    }
+
+    //This method is do `and` operation for position's ack set
+    public static void andAckSet(PositionImpl currentPosition, PositionImpl otherPosition) {
+        if (currentPosition == null || otherPosition == null) {
+            return;
+        }
+        BitSetRecyclable thisAckSet = BitSetRecyclable.valueOf(currentPosition.getAckSet());
+        BitSetRecyclable otherAckSet = BitSetRecyclable.valueOf(otherPosition.getAckSet());
+        thisAckSet.and(otherAckSet);
+        currentPosition.setAckSet(thisAckSet.toLongArray());
+        thisAckSet.recycle();
+        otherAckSet.recycle();
+    }
+
+    //This method is compare two position which position is bigger than another one.
+    //When the ledgerId and entryId in this position is same to another one and two position all have ack set, it will
+    //compare the ack set next bit index is bigger than another one.
+    public static int compareToWithAckSet(PositionImpl currentPosition,PositionImpl otherPosition) {
+        if (currentPosition == null || otherPosition ==null) {
+            return -1;
+        }

Review comment:
       It's better to throw an exception here, if return -1 it means the currentPosition is lower than otherPosition

##########
File path: pulsar-broker/src/main/java/org/apache/pulsar/broker/service/Consumer.java
##########
@@ -413,49 +419,149 @@ void doUnsubscribe(final long requestId) {
                     position = PositionImpl.get(msgId.getLedgerId(), msgId.getEntryId());
                 }
             }
-            List<Position> positionsAcked = Collections.singletonList(position);
             if (ack.hasTxnidMostBits() && ack.hasTxnidLeastBits()) {
-                return transactionAcknowledge(ack.getTxnidMostBits(), ack.getTxnidLeastBits(), positionsAcked, AckType.Cumulative);
+                List<PositionImpl> positionsAcked = Collections.singletonList(position);
+                return transactionCumulativeAcknowledge(ack.getTxnidMostBits(), ack.getTxnidLeastBits(), positionsAcked);
             } else {
+                List<Position> positionsAcked = Collections.singletonList(position);
                 subscription.acknowledgeMessage(positionsAcked, AckType.Cumulative, properties);
+                return CompletableFuture.completedFuture(null);
             }
         } else {
-            // Individual ack
-            List<Position> positionsAcked = new ArrayList<>();
-            for (int i = 0; i < ack.getMessageIdCount(); i++) {
-                MessageIdData msgId = ack.getMessageId(i);
-                PositionImpl position;
-                if (msgId.getAckSetCount() > 0) {
-                    position = PositionImpl.get(msgId.getLedgerId(), msgId.getEntryId(), SafeCollectionUtils.longListToArray(msgId.getAckSetList()));
-                } else {
-                    position = PositionImpl.get(msgId.getLedgerId(), msgId.getEntryId());
-                }
-                positionsAcked.add(position);
+            if (ack.hasTxnidLeastBits() && ack.hasTxnidMostBits()) {
+                return individualAckWithTransaction(ack);
+            } else {
+                return individualAckNormal(ack, properties);
+            }
+        }
+    }
 
-                if (Subscription.isIndividualAckMode(subType) && msgId.getAckSetCount() == 0) {
-                    removePendingAcks(position);
+    //this method is for individual ack not carry the transaction
+    private CompletableFuture<Void> individualAckNormal(CommandAck ack, Map<String,Long> properties) {
+        List<Position> positionsAcked = new ArrayList<>();
+        List<PositionImpl> checkBatchPositions = null;
+        if (isTransactionEnabled) {
+            checkBatchPositions = new ArrayList<>();
+        }
+        for (int i = 0; i < ack.getMessageIdCount(); i++) {
+            MessageIdData msgId = ack.getMessageId(i);
+            PositionImpl position;
+            if (msgId.getAckSetCount() > 0) {
+                position = PositionImpl.get(msgId.getLedgerId(), msgId.getEntryId(),
+                        SafeCollectionUtils.longListToArray(msgId.getAckSetList()));
+                if (isTransactionEnabled) {
+                    //sync the batch position bit set point, in order to delete the position in pending acks
+                    checkBatchPositions.add(position);
+                    LongPair batchSizePair = this.pendingAcks.get(msgId.getLedgerId(), msgId.getEntryId());
+                    if (batchSizePair == null) {
+                        String error = "Batch position [" + position + "] could not find " +
+                                "it's batch size from consumer pendingAcks!";
+                        log.warn(error);
+                        return FutureUtil.failedFuture(
+                                new TransactionConflictException(error));

Review comment:
       If this for normal ack, shall we need to return TransactionConflictException?

##########
File path: pulsar-broker/src/main/java/org/apache/pulsar/broker/service/Consumer.java
##########
@@ -413,49 +419,149 @@ void doUnsubscribe(final long requestId) {
                     position = PositionImpl.get(msgId.getLedgerId(), msgId.getEntryId());
                 }
             }
-            List<Position> positionsAcked = Collections.singletonList(position);
             if (ack.hasTxnidMostBits() && ack.hasTxnidLeastBits()) {
-                return transactionAcknowledge(ack.getTxnidMostBits(), ack.getTxnidLeastBits(), positionsAcked, AckType.Cumulative);
+                List<PositionImpl> positionsAcked = Collections.singletonList(position);
+                return transactionCumulativeAcknowledge(ack.getTxnidMostBits(), ack.getTxnidLeastBits(), positionsAcked);
             } else {
+                List<Position> positionsAcked = Collections.singletonList(position);
                 subscription.acknowledgeMessage(positionsAcked, AckType.Cumulative, properties);
+                return CompletableFuture.completedFuture(null);
             }
         } else {
-            // Individual ack
-            List<Position> positionsAcked = new ArrayList<>();
-            for (int i = 0; i < ack.getMessageIdCount(); i++) {
-                MessageIdData msgId = ack.getMessageId(i);
-                PositionImpl position;
-                if (msgId.getAckSetCount() > 0) {
-                    position = PositionImpl.get(msgId.getLedgerId(), msgId.getEntryId(), SafeCollectionUtils.longListToArray(msgId.getAckSetList()));
-                } else {
-                    position = PositionImpl.get(msgId.getLedgerId(), msgId.getEntryId());
-                }
-                positionsAcked.add(position);
+            if (ack.hasTxnidLeastBits() && ack.hasTxnidMostBits()) {
+                return individualAckWithTransaction(ack);
+            } else {
+                return individualAckNormal(ack, properties);
+            }
+        }
+    }
 
-                if (Subscription.isIndividualAckMode(subType) && msgId.getAckSetCount() == 0) {
-                    removePendingAcks(position);
+    //this method is for individual ack not carry the transaction
+    private CompletableFuture<Void> individualAckNormal(CommandAck ack, Map<String,Long> properties) {
+        List<Position> positionsAcked = new ArrayList<>();
+        List<PositionImpl> checkBatchPositions = null;
+        if (isTransactionEnabled) {
+            checkBatchPositions = new ArrayList<>();
+        }
+        for (int i = 0; i < ack.getMessageIdCount(); i++) {
+            MessageIdData msgId = ack.getMessageId(i);
+            PositionImpl position;
+            if (msgId.getAckSetCount() > 0) {
+                position = PositionImpl.get(msgId.getLedgerId(), msgId.getEntryId(),
+                        SafeCollectionUtils.longListToArray(msgId.getAckSetList()));
+                if (isTransactionEnabled) {
+                    //sync the batch position bit set point, in order to delete the position in pending acks
+                    checkBatchPositions.add(position);
+                    LongPair batchSizePair = this.pendingAcks.get(msgId.getLedgerId(), msgId.getEntryId());
+                    if (batchSizePair == null) {
+                        String error = "Batch position [" + position + "] could not find " +
+                                "it's batch size from consumer pendingAcks!";
+                        log.warn(error);
+                        return FutureUtil.failedFuture(
+                                new TransactionConflictException(error));
+                    }
+                    ((PersistentSubscription) subscription)
+                            .syncBatchPositionBitSetForPendingAck(new MutablePair<>(position, batchSizePair.first));
+                    //check if the position can remove from the consumer pending acks.
+                    // the bit set is empty in pending ack handle.
+                    if (((PersistentSubscription) subscription).checkIsCanDeleteConsumerPendingAck(position)) {
+                        removePendingAcks(position);
+                    }
                 }
+            } else {
+                position = PositionImpl.get(msgId.getLedgerId(), msgId.getEntryId());
+            }
+            positionsAcked.add(position);
+            if (Subscription.isIndividualAckMode(subType) && msgId.getAckSetCount() == 0) {
+                removePendingAcks(position);
+            }
 
-                if (ack.hasValidationError()) {
-                    log.error("[{}] [{}] Received ack for corrupted message at {} - Reason: {}", subscription,
-                            consumerId, position, ack.getValidationError());
-                }
+            if (ack.hasValidationError()) {
+                log.error("[{}] [{}] Received ack for corrupted message at {} - Reason: {}", subscription,
+                        consumerId, position, ack.getValidationError());
             }
-            if (ack.hasTxnidMostBits() && ack.hasTxnidLeastBits()) {
-                return transactionAcknowledge(ack.getTxnidMostBits(), ack.getTxnidLeastBits(), positionsAcked, AckType.Individual);
+        }
+        subscription.acknowledgeMessage(positionsAcked, AckType.Individual, properties);
+        return CompletableFuture.completedFuture(null);
+    }
+
+
+    //this method is for individual ack carry the transaction
+    private CompletableFuture<Void> individualAckWithTransaction(CommandAck ack) {

Review comment:
       Looks there is much duplicate code with the `individualAckNormal`, is it possible to refine it?

##########
File path: pulsar-broker/src/main/java/org/apache/pulsar/broker/service/Consumer.java
##########
@@ -131,12 +132,13 @@
     private static final double avgPercent = 0.9;
     private boolean preciseDispatcherFlowControl;
     private PositionImpl readPositionWhenJoining;
+    private final boolean isTransactionEnabled;

Review comment:
       Move the isTransactionEnabled to the topic or subscription?  We cannot treat consumers differently in transaction.




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