Rollback ref update when global-refdb update failure
Reference update contains two updates: local repository update
and global-refdb. Failure of the global-refdb update cause split
brain because local repository is ahead of the global-refdb. To
mitigate the problem, rollback local repository update when
global-refdb update fails.
Also for split brain always rollback the ref-update and return
LOCK_FAILURE regardless of the enforcement policy.
Bug: Issue 14028
Change-Id: I3e7c2fd093bd63e6b3f2dba99efe990795cf85ab
diff --git a/src/main/java/com/googlesource/gerrit/plugins/multisite/validation/BatchRefUpdateValidator.java b/src/main/java/com/googlesource/gerrit/plugins/multisite/validation/BatchRefUpdateValidator.java
index 4e6bef5..a33a948 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/multisite/validation/BatchRefUpdateValidator.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/multisite/validation/BatchRefUpdateValidator.java
@@ -55,7 +55,9 @@
}
public void executeBatchUpdateWithValidation(
- BatchRefUpdate batchRefUpdate, NoParameterVoidFunction batchRefUpdateFunction)
+ BatchRefUpdate batchRefUpdate,
+ NoParameterVoidFunction batchRefUpdateFunction,
+ OneParameterVoidFunction<List<ReceiveCommand>> batchRefUpdateRollbackFunction)
throws IOException {
if (refEnforcement.getPolicy(projectName) == EnforcePolicy.IGNORED) {
batchRefUpdateFunction.invoke();
@@ -63,7 +65,7 @@
}
try {
- doExecuteBatchUpdate(batchRefUpdate, batchRefUpdateFunction);
+ doExecuteBatchUpdate(batchRefUpdate, batchRefUpdateFunction, batchRefUpdateRollbackFunction);
} catch (IOException e) {
logger.atWarning().withCause(e).log(
"Failed to execute Batch Update on project %s", projectName);
@@ -74,7 +76,10 @@
}
private void doExecuteBatchUpdate(
- BatchRefUpdate batchRefUpdate, NoParameterVoidFunction delegateUpdate) throws IOException {
+ BatchRefUpdate batchRefUpdate,
+ NoParameterVoidFunction delegateUpdate,
+ OneParameterVoidFunction<List<ReceiveCommand>> delegateUpdateRollback)
+ throws IOException {
List<ReceiveCommand> commands = batchRefUpdate.getCommands();
if (commands.isEmpty()) {
@@ -96,12 +101,39 @@
}
try (CloseableSet<AutoCloseable> locks = new CloseableSet<>()) {
- refsToUpdate = compareAndGetLatestLocalRefs(refsToUpdate, locks);
+ final List<RefPair> finalRefsToUpdate = compareAndGetLatestLocalRefs(refsToUpdate, locks);
delegateUpdate.invoke();
- updateSharedRefDb(batchRefUpdate.getCommands().stream(), refsToUpdate);
+ try {
+ updateSharedRefDb(batchRefUpdate.getCommands().stream(), finalRefsToUpdate);
+ } catch (Exception e) {
+ List<ReceiveCommand> receiveCommands = batchRefUpdate.getCommands();
+ logger.atWarning().withCause(e).log(
+ String.format(
+ "Batch ref-update failing because of failure during the global refdb update. Set all commands Result to LOCK_FAILURE [%d]",
+ receiveCommands.size()));
+ rollback(delegateUpdateRollback, finalRefsToUpdate, receiveCommands);
+ }
}
}
+ private void rollback(
+ OneParameterVoidFunction<List<ReceiveCommand>> delegateUpdateRollback,
+ List<RefPair> refsBeforeUpdate,
+ List<ReceiveCommand> receiveCommands)
+ throws IOException {
+ List<ReceiveCommand> rollbackCommands =
+ refsBeforeUpdate.stream()
+ .map(
+ refBeforeUpdate ->
+ new ReceiveCommand(
+ refBeforeUpdate.putValue,
+ refBeforeUpdate.compareRef.getObjectId(),
+ refBeforeUpdate.getName()))
+ .collect(Collectors.toList());
+ delegateUpdateRollback.invoke(rollbackCommands);
+ receiveCommands.forEach(command -> command.setResult(ReceiveCommand.Result.LOCK_FAILURE));
+ }
+
private void updateSharedRefDb(Stream<ReceiveCommand> commandStream, List<RefPair> refsToUpdate)
throws IOException {
if (commandStream
diff --git a/src/main/java/com/googlesource/gerrit/plugins/multisite/validation/MultiSiteBatchRefUpdate.java b/src/main/java/com/googlesource/gerrit/plugins/multisite/validation/MultiSiteBatchRefUpdate.java
index c152b12..fd4f910 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/multisite/validation/MultiSiteBatchRefUpdate.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/multisite/validation/MultiSiteBatchRefUpdate.java
@@ -31,6 +31,7 @@
public class MultiSiteBatchRefUpdate extends BatchRefUpdate {
private final BatchRefUpdate batchRefUpdate;
+ private final BatchRefUpdate batchRefUpdateRollback;
private final String project;
private final BatchRefUpdateValidator.Factory batchRefValidatorFactory;
private final RefDatabase refDb;
@@ -48,6 +49,7 @@
this.refDb = refDb;
this.project = project;
this.batchRefUpdate = refDb.newBatchUpdate();
+ this.batchRefUpdateRollback = refDb.newBatchUpdate();
this.batchRefValidatorFactory = batchRefValidatorFactory;
}
@@ -68,6 +70,7 @@
@Override
public BatchRefUpdate setAllowNonFastForwards(boolean allow) {
+ batchRefUpdateRollback.setAllowNonFastForwards(allow);
return batchRefUpdate.setAllowNonFastForwards(allow);
}
@@ -78,6 +81,7 @@
@Override
public BatchRefUpdate setRefLogIdent(PersonIdent pi) {
+ batchRefUpdateRollback.setRefLogIdent(pi);
return batchRefUpdate.setRefLogIdent(pi);
}
@@ -93,6 +97,7 @@
@Override
public BatchRefUpdate setRefLogMessage(String msg, boolean appendStatus) {
+ batchRefUpdateRollback.setRefLogMessage(msg, appendStatus);
return batchRefUpdate.setRefLogMessage(msg, appendStatus);
}
@@ -103,6 +108,7 @@
@Override
public BatchRefUpdate setForceRefLog(boolean force) {
+ batchRefUpdateRollback.setForceRefLog(force);
return batchRefUpdate.setForceRefLog(force);
}
@@ -167,7 +173,10 @@
batchRefValidatorFactory
.create(project, refDb)
.executeBatchUpdateWithValidation(
- batchRefUpdate, () -> batchRefUpdate.execute(walk, monitor, options));
+ batchRefUpdate,
+ () -> batchRefUpdate.execute(walk, monitor, options),
+ (commands) ->
+ batchRefUpdateRollback.addCommand(commands).execute(walk, monitor, options));
}
@Override
@@ -175,7 +184,9 @@
batchRefValidatorFactory
.create(project, refDb)
.executeBatchUpdateWithValidation(
- batchRefUpdate, () -> batchRefUpdate.execute(walk, monitor));
+ batchRefUpdate,
+ () -> batchRefUpdate.execute(walk, monitor),
+ (commands) -> batchRefUpdateRollback.addCommand(commands).execute(walk, monitor));
}
@Override
diff --git a/src/main/java/com/googlesource/gerrit/plugins/multisite/validation/MultiSiteRefUpdate.java b/src/main/java/com/googlesource/gerrit/plugins/multisite/validation/MultiSiteRefUpdate.java
index eadb633..20e12fe 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/multisite/validation/MultiSiteRefUpdate.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/multisite/validation/MultiSiteRefUpdate.java
@@ -16,6 +16,7 @@
import com.google.inject.Inject;
import com.google.inject.assistedinject.Assisted;
+import com.googlesource.gerrit.plugins.multisite.validation.RefUpdateValidator.NoParameterFunction;
import java.io.IOException;
import org.eclipse.jgit.lib.AnyObjectId;
import org.eclipse.jgit.lib.ObjectId;
@@ -92,22 +93,34 @@
@Override
public Result update() throws IOException {
- return refUpdateValidator.executeRefUpdate(refUpdateBase, refUpdateBase::update);
+ return refUpdateValidator.executeRefUpdate(
+ refUpdateBase,
+ refUpdateBase::update,
+ objectId -> rollback(objectId, refUpdateBase::update));
}
@Override
public Result update(RevWalk rev) throws IOException {
- return refUpdateValidator.executeRefUpdate(refUpdateBase, () -> refUpdateBase.update(rev));
+ return refUpdateValidator.executeRefUpdate(
+ refUpdateBase,
+ () -> refUpdateBase.update(rev),
+ objectId -> rollback(objectId, () -> refUpdateBase.update(rev)));
}
@Override
public Result delete() throws IOException {
- return refUpdateValidator.executeRefUpdate(refUpdateBase, refUpdateBase::delete);
+ return refUpdateValidator.executeRefUpdate(
+ refUpdateBase,
+ refUpdateBase::delete,
+ objectId -> rollback(objectId, refUpdateBase::update));
}
@Override
public Result delete(RevWalk walk) throws IOException {
- return refUpdateValidator.executeRefUpdate(refUpdateBase, () -> refUpdateBase.delete(walk));
+ return refUpdateValidator.executeRefUpdate(
+ refUpdateBase,
+ () -> refUpdateBase.delete(walk),
+ objectId -> rollback(objectId, () -> refUpdateBase.update(walk)));
}
@Override
@@ -222,7 +235,10 @@
@Override
public Result forceUpdate() throws IOException {
- return refUpdateValidator.executeRefUpdate(refUpdateBase, refUpdateBase::forceUpdate);
+ return refUpdateValidator.executeRefUpdate(
+ refUpdateBase,
+ refUpdateBase::forceUpdate,
+ objectId -> rollback(objectId, refUpdateBase::forceUpdate));
}
@Override
@@ -234,4 +250,11 @@
public void setCheckConflicting(boolean check) {
refUpdateBase.setCheckConflicting(check);
}
+
+ private Result rollback(ObjectId objectId, NoParameterFunction<Result> updateFunction)
+ throws IOException {
+ refUpdateBase.setExpectedOldObjectId(refUpdateBase.getNewObjectId());
+ refUpdateBase.setNewObjectId(objectId);
+ return updateFunction.invoke();
+ }
}
diff --git a/src/main/java/com/googlesource/gerrit/plugins/multisite/validation/RefUpdateValidator.java b/src/main/java/com/googlesource/gerrit/plugins/multisite/validation/RefUpdateValidator.java
index e66b3ba..3558fb4 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/multisite/validation/RefUpdateValidator.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/multisite/validation/RefUpdateValidator.java
@@ -34,6 +34,7 @@
import org.eclipse.jgit.lib.Ref;
import org.eclipse.jgit.lib.RefDatabase;
import org.eclipse.jgit.lib.RefUpdate;
+import org.eclipse.jgit.lib.RefUpdate.Result;
public class RefUpdateValidator {
private static final FluentLogger logger = FluentLogger.forEnclosingClass();
@@ -67,6 +68,14 @@
void invoke() throws IOException;
}
+ public interface OneParameterFunction<F, T> {
+ T invoke(F f) throws IOException;
+ }
+
+ public interface OneParameterVoidFunction<T> {
+ void invoke(T f) throws IOException;
+ }
+
@Inject
public RefUpdateValidator(
SharedRefDatabaseWrapper sharedRefDb,
@@ -84,25 +93,15 @@
}
public RefUpdate.Result executeRefUpdate(
- RefUpdate refUpdate, NoParameterFunction<RefUpdate.Result> refUpdateFunction)
+ RefUpdate refUpdate,
+ NoParameterFunction<RefUpdate.Result> refUpdateFunction,
+ OneParameterFunction<ObjectId, Result> rollbackFunction)
throws IOException {
if (refEnforcement.getPolicy(projectName) == EnforcePolicy.IGNORED) {
return refUpdateFunction.invoke();
}
- try {
- return doExecuteRefUpdate(refUpdate, refUpdateFunction);
- } catch (SharedDbSplitBrainException e) {
- validationMetrics.incrementSplitBrain();
-
- logger.atWarning().withCause(e).log(
- "Unable to execute ref-update on project=%s ref=%s",
- projectName, refUpdate.getRef().getName());
- if (refEnforcement.getPolicy(projectName) == EnforcePolicy.REQUIRED) {
- throw e;
- }
- }
- return null;
+ return doExecuteRefUpdate(refUpdate, refUpdateFunction, rollbackFunction);
}
private <T extends Throwable> void softFailBasedOnEnforcement(T e, EnforcePolicy policy)
@@ -117,16 +116,34 @@
}
protected RefUpdate.Result doExecuteRefUpdate(
- RefUpdate refUpdate, NoParameterFunction<RefUpdate.Result> refUpdateFunction)
+ RefUpdate refUpdate,
+ NoParameterFunction<Result> refUpdateFunction,
+ OneParameterFunction<ObjectId, Result> rollbackFunction)
throws IOException {
try (CloseableSet<AutoCloseable> locks = new CloseableSet<>()) {
RefPair refPairForUpdate = newRefPairFrom(refUpdate);
compareAndGetLatestLocalRef(refPairForUpdate, locks);
RefUpdate.Result result = refUpdateFunction.invoke();
- if (isSuccessful(result)) {
- updateSharedDbOrThrowExceptionFor(refPairForUpdate);
+ try {
+ if (isSuccessful(result)) {
+ updateSharedDbOrThrowExceptionFor(refPairForUpdate);
+ }
+ } catch (Exception e) {
+ result = rollbackFunction.invoke(refPairForUpdate.compareRef.getObjectId());
+ if (isSuccessful(result)) {
+ result = RefUpdate.Result.LOCK_FAILURE;
+ }
+ logger.atSevere().withCause(e).log(
+ String.format(
+ "Failed to update global refdb, the local refdb has been rolled back: %s",
+ e.getMessage()));
}
return result;
+ } catch (OutOfSyncException e) {
+ logger.atWarning().withCause(e).log(
+ String.format("Local node is out of sync with ref-db: %s", e.getMessage()));
+
+ return RefUpdate.Result.LOCK_FAILURE;
}
}
@@ -151,7 +168,7 @@
projectName,
refPair.getName(),
e.getMessage());
- throw new SharedDbSplitBrainException(errorMessage, e);
+ throw e;
}
if (!succeeded) {
diff --git a/src/test/java/com/googlesource/gerrit/plugins/multisite/validation/BatchRefUpdateValidatorTest.java b/src/test/java/com/googlesource/gerrit/plugins/multisite/validation/BatchRefUpdateValidatorTest.java
index 5a68d2f..49e0d43 100644
--- a/src/test/java/com/googlesource/gerrit/plugins/multisite/validation/BatchRefUpdateValidatorTest.java
+++ b/src/test/java/com/googlesource/gerrit/plugins/multisite/validation/BatchRefUpdateValidatorTest.java
@@ -39,6 +39,7 @@
import org.eclipse.jgit.revwalk.RevCommit;
import org.eclipse.jgit.revwalk.RevWalk;
import org.eclipse.jgit.transport.ReceiveCommand;
+import org.eclipse.jgit.transport.ReceiveCommand.Result;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
@@ -100,7 +101,7 @@
BatchRefUpdateValidator BatchRefUpdateValidator = newDefaultValidator(A_TEST_PROJECT_NAME);
BatchRefUpdateValidator.executeBatchUpdateWithValidation(
- batchRefUpdate, () -> execute(batchRefUpdate));
+ batchRefUpdate, () -> execute(batchRefUpdate), this::defaultRollback);
assertFalse(zkSharedRefDatabase.exists(A_TEST_PROJECT_NAME, AN_IMMUTABLE_REF));
}
@@ -114,7 +115,7 @@
BatchRefUpdateValidator BatchRefUpdateValidator = newDefaultValidator(A_TEST_PROJECT_NAME);
BatchRefUpdateValidator.executeBatchUpdateWithValidation(
- batchRefUpdate, () -> execute(batchRefUpdate));
+ batchRefUpdate, () -> execute(batchRefUpdate), this::defaultRollback);
assertFalse(zkSharedRefDatabase.exists(A_TEST_PROJECT_NAME, DRAFT_COMMENT));
}
@@ -144,6 +145,7 @@
private BatchRefUpdate newBatchUpdate(List<ReceiveCommand> cmds) {
BatchRefUpdate u = refdir.newBatchUpdate();
u.addCommand(cmds);
+ cmds.forEach(c -> c.setResult(Result.OK));
return u;
}
@@ -151,4 +153,8 @@
public String testBranch() {
return "branch_" + nameRule.getMethodName();
}
+
+ private void defaultRollback(List<ReceiveCommand> cmds) throws IOException {
+ // do nothing
+ }
}
diff --git a/src/test/java/com/googlesource/gerrit/plugins/multisite/validation/MultiSiteBatchRefUpdateTest.java b/src/test/java/com/googlesource/gerrit/plugins/multisite/validation/MultiSiteBatchRefUpdateTest.java
index 730e558..c7611f9 100644
--- a/src/test/java/com/googlesource/gerrit/plugins/multisite/validation/MultiSiteBatchRefUpdateTest.java
+++ b/src/test/java/com/googlesource/gerrit/plugins/multisite/validation/MultiSiteBatchRefUpdateTest.java
@@ -24,10 +24,12 @@
import static org.mockito.Mockito.when;
import com.googlesource.gerrit.plugins.multisite.SharedRefDatabaseWrapper;
+import com.googlesource.gerrit.plugins.multisite.validation.RefUpdateValidator.OneParameterVoidFunction;
import com.googlesource.gerrit.plugins.multisite.validation.dfsrefdb.DefaultSharedRefEnforcement;
import com.googlesource.gerrit.plugins.multisite.validation.dfsrefdb.zookeeper.RefFixture;
import java.io.IOException;
import java.util.Collections;
+import java.util.List;
import org.eclipse.jgit.lib.BatchRefUpdate;
import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.lib.ObjectIdRef;
@@ -54,6 +56,7 @@
@Mock RevWalk revWalk;
@Mock ProgressMonitor progressMonitor;
@Mock ValidationMetrics validationMetrics;
+ @Mock OneParameterVoidFunction<List<ReceiveCommand>> rollbackFunction;
private final Ref oldRef =
new ObjectIdRef.Unpeeled(Ref.Storage.NETWORK, A_TEST_REF_NAME, AN_OBJECT_ID_1);
diff --git a/src/test/java/com/googlesource/gerrit/plugins/multisite/validation/RefUpdateValidatorTest.java b/src/test/java/com/googlesource/gerrit/plugins/multisite/validation/RefUpdateValidatorTest.java
index f0677b8..6183ec1 100644
--- a/src/test/java/com/googlesource/gerrit/plugins/multisite/validation/RefUpdateValidatorTest.java
+++ b/src/test/java/com/googlesource/gerrit/plugins/multisite/validation/RefUpdateValidatorTest.java
@@ -20,14 +20,16 @@
import static org.mockito.Mockito.doReturn;
import static org.mockito.Mockito.lenient;
import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.times;
import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
import com.googlesource.gerrit.plugins.multisite.SharedRefDatabaseWrapper;
+import com.googlesource.gerrit.plugins.multisite.validation.RefUpdateValidator.OneParameterFunction;
import com.googlesource.gerrit.plugins.multisite.validation.dfsrefdb.DefaultSharedRefEnforcement;
-import com.googlesource.gerrit.plugins.multisite.validation.dfsrefdb.OutOfSyncException;
-import com.googlesource.gerrit.plugins.multisite.validation.dfsrefdb.SharedDbSplitBrainException;
import com.googlesource.gerrit.plugins.multisite.validation.dfsrefdb.SharedRefDatabase;
import com.googlesource.gerrit.plugins.multisite.validation.dfsrefdb.zookeeper.RefFixture;
+import java.io.IOException;
import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.lib.ObjectIdRef;
import org.eclipse.jgit.lib.Ref;
@@ -53,6 +55,8 @@
@Mock RefUpdate refUpdate;
+ @Mock OneParameterFunction<ObjectId, Result> rollbackFunction;
+
String refName;
Ref oldUpdateRef;
Ref newUpdateRef;
@@ -69,10 +73,10 @@
doReturn(localRef).when(localRefDb).getRef(refName);
doReturn(localRef).when(localRefDb).exactRef(refName);
- doReturn(oldUpdateRef).when(refUpdate).getRef();
doReturn(newUpdateRef.getObjectId()).when(refUpdate).getNewObjectId();
doReturn(refName).when(refUpdate).getName();
lenient().doReturn(oldUpdateRef.getObjectId()).when(refUpdate).getOldObjectId();
+ doReturn(Result.FAST_FORWARD).when(rollbackFunction).invoke(any());
refUpdateValidator =
new RefUpdateValidator(
@@ -96,7 +100,9 @@
.when(sharedRefDb)
.compareAndPut(A_TEST_PROJECT_NAME, localRef, newUpdateRef.getObjectId());
- Result result = refUpdateValidator.executeRefUpdate(refUpdate, () -> RefUpdate.Result.NEW);
+ Result result =
+ refUpdateValidator.executeRefUpdate(
+ refUpdate, () -> RefUpdate.Result.NEW, this::defaultRollback);
assertThat(result).isEqualTo(RefUpdate.Result.NEW);
}
@@ -114,7 +120,9 @@
.compareAndPut(A_TEST_PROJECT_NAME, localRef, ObjectId.zeroId());
doReturn(localRef).doReturn(null).when(localRefDb).getRef(refName);
- Result result = refUpdateValidator.executeRefUpdate(refUpdate, () -> RefUpdate.Result.FORCED);
+ Result result =
+ refUpdateValidator.executeRefUpdate(
+ refUpdate, () -> RefUpdate.Result.FORCED, this::defaultRollback);
assertThat(result).isEqualTo(RefUpdate.Result.FORCED);
}
@@ -133,22 +141,27 @@
.compareAndPut(A_TEST_PROJECT_NAME, localNullRef, newUpdateRef.getObjectId());
doReturn(localNullRef).doReturn(newUpdateRef).when(localRefDb).getRef(refName);
- Result result = refUpdateValidator.executeRefUpdate(refUpdate, () -> RefUpdate.Result.NEW);
+ Result result =
+ refUpdateValidator.executeRefUpdate(
+ refUpdate, () -> RefUpdate.Result.NEW, this::defaultRollback);
assertThat(result).isEqualTo(RefUpdate.Result.NEW);
}
- @Test(expected = OutOfSyncException.class)
+ @Test
public void validationShouldFailWhenLocalRefDbIsNotUpToDate() throws Exception {
lenient().doReturn(true).when(sharedRefDb).isUpToDate(anyString(), any(Ref.class));
doReturn(true).when(sharedRefDb).exists(A_TEST_PROJECT_NAME, refName);
doReturn(false).when(sharedRefDb).isUpToDate(A_TEST_PROJECT_NAME, localRef);
- refUpdateValidator.executeRefUpdate(refUpdate, () -> RefUpdate.Result.NEW);
+ Result result =
+ refUpdateValidator.executeRefUpdate(
+ refUpdate, () -> RefUpdate.Result.NEW, this::defaultRollback);
+ assertThat(result).isEqualTo(Result.LOCK_FAILURE);
}
- @Test(expected = SharedDbSplitBrainException.class)
- public void shouldTrowSplitBrainWhenLocalRefDbIsUpToDateButFinalCompareAndPutIsFailing()
+ @Test
+ public void shouldRollbackWhenLocalRefDbIsUpToDateButFinalCompareAndPutIsFailing()
throws Exception {
lenient().doReturn(false).when(sharedRefDb).isUpToDate(anyString(), any(Ref.class));
doReturn(true).when(sharedRefDb).isUpToDate(A_TEST_PROJECT_NAME, localRef);
@@ -160,7 +173,11 @@
.when(sharedRefDb)
.compareAndPut(A_TEST_PROJECT_NAME, localRef, newUpdateRef.getObjectId());
- refUpdateValidator.executeRefUpdate(refUpdate, () -> RefUpdate.Result.NEW);
+ Result result =
+ refUpdateValidator.executeRefUpdate(refUpdate, () -> Result.NEW, rollbackFunction);
+
+ verify(rollbackFunction, times(1)).invoke(any());
+ assertThat(result).isEqualTo(Result.LOCK_FAILURE);
}
@Test
@@ -169,12 +186,31 @@
doReturn(true).when(sharedRefDb).isUpToDate(A_TEST_PROJECT_NAME, localRef);
Result result =
- refUpdateValidator.executeRefUpdate(refUpdate, () -> RefUpdate.Result.LOCK_FAILURE);
+ refUpdateValidator.executeRefUpdate(
+ refUpdate, () -> Result.LOCK_FAILURE, this::defaultRollback);
verify(sharedRefDb, never()).compareAndPut(anyString(), any(Ref.class), any(ObjectId.class));
assertThat(result).isEqualTo(RefUpdate.Result.LOCK_FAILURE);
}
+ @Test
+ public void shouldRollbackRefUpdateCompareAndPutIsFailing() throws Exception {
+ lenient().doReturn(false).when(sharedRefDb).isUpToDate(anyString(), any(Ref.class));
+ doReturn(true).when(sharedRefDb).isUpToDate(A_TEST_PROJECT_NAME, localRef);
+
+ when(sharedRefDb.compareAndPut(anyString(), any(Ref.class), any(ObjectId.class)))
+ .thenThrow(IOException.class);
+ when(rollbackFunction.invoke(any())).thenReturn(Result.LOCK_FAILURE);
+
+ refUpdateValidator.executeRefUpdate(refUpdate, () -> Result.NEW, rollbackFunction);
+
+ verify(rollbackFunction, times(1)).invoke(any());
+ }
+
+ private Result defaultRollback(ObjectId objectId) {
+ return Result.NO_CHANGE;
+ }
+
private Ref newRef(String refName, ObjectId objectId) {
return new ObjectIdRef.Unpeeled(Ref.Storage.NETWORK, refName, objectId);
}
