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Posted to notifications@ignite.apache.org by GitBox <gi...@apache.org> on 2020/05/21 08:46:12 UTC
[GitHub] [ignite] Mmuzaf opened a new pull request #7827: IGNITE-12978: add cancel snapshot support
Mmuzaf opened a new pull request #7827:
URL: https://github.com/apache/ignite/pull/7827
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[GitHub] [ignite] Mmuzaf merged pull request #7827: IGNITE-12978: add cancel snapshot support
Posted by GitBox <gi...@apache.org>.
Mmuzaf merged pull request #7827:
URL: https://github.com/apache/ignite/pull/7827
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[GitHub] [ignite] NSAmelchev commented on a change in pull request #7827: IGNITE-12978: add cancel snapshot support
Posted by GitBox <gi...@apache.org>.
NSAmelchev commented on a change in pull request #7827:
URL: https://github.com/apache/ignite/pull/7827#discussion_r429582705
##########
File path: modules/core/src/main/java/org/apache/ignite/internal/processors/cache/persistence/snapshot/IgniteSnapshotManager.java
##########
@@ -540,10 +542,14 @@ private void processLocalSnapshotStartStageResult(UUID id, Map<UUID, SnapshotOpe
missed.removeAll(res.keySet());
missed.removeAll(err.keySet());
- snpReq.hasErr = !F.isEmpty(err) || !missed.isEmpty();
+ boolean cancelled = err.values().stream()
+ .anyMatch(e -> e instanceof IgniteFutureCancelledCheckedException);
Review comment:
Can be in one line
##########
File path: modules/core/src/main/java/org/apache/ignite/internal/processors/cache/persistence/snapshot/IgniteSnapshotManager.java
##########
@@ -540,10 +542,14 @@ private void processLocalSnapshotStartStageResult(UUID id, Map<UUID, SnapshotOpe
missed.removeAll(res.keySet());
missed.removeAll(err.keySet());
- snpReq.hasErr = !F.isEmpty(err) || !missed.isEmpty();
+ boolean cancelled = err.values().stream()
+ .anyMatch(e -> e instanceof IgniteFutureCancelledCheckedException);
- if (snpReq.hasErr) {
- U.warn(log, "Execution of local snapshot tasks fails or them haven't been executed " +
+ if (cancelled) {
+ snpReq.err = new IgniteFutureCancelledCheckedException("Execution of snapshot tasks " +
+ "has been cancelled by external process [err=" + err + ", missed=" + missed + ']');
+ } else if (!F.isEmpty(err) || !missed.isEmpty()) {
Review comment:
`else` should be on a new line.
##########
File path: modules/core/src/main/java/org/apache/ignite/internal/processors/cache/persistence/snapshot/SnapshotFutureTask.java
##########
@@ -627,7 +629,7 @@ private Runnable wrapExceptionIfStarted(IgniteThrowableRunner exec) {
/** {@inheritDoc} */
@Override public boolean cancel() {
- acceptException(new IgniteCheckedException("Snapshot operation has been cancelled by external process " +
+ acceptException(new IgniteFutureCancelledCheckedException("Snapshot operation has been cancelled by external process " +
Review comment:
Too long line
##########
File path: modules/core/src/main/java/org/apache/ignite/internal/processors/cache/persistence/snapshot/IgniteSnapshotManager.java
##########
@@ -634,6 +642,66 @@ public boolean isSnapshotCreating() {
}
}
+ /** {@inheritDoc} */
+ @Override public IgniteFuture<Void> cancelSnapshot(String name) {
+ A.notNullOrEmpty(name, "Snapshot name must be not empty or null");
+
+ IgniteInternalFuture<Void> fut0 = cctx.kernalContext().closure()
+ .broadcast(new CancelSnapshotClosure(),
Review comment:
Suppose that next processes in the cluster will happen simultaneously:
1. The `END_SNAPSHOT` DP will be at the finish stage and only part of nodes processed their 'this::processLocalSnapshotEndStageResult'
2. Part of nodes executes broadcasted closure `cancelLocalSnapshotTask`
They are processed by different threads. Can we get a situation when part of nodes finish `clusterSnpFut` successfully and other ones with error? It's ok?
##########
File path: modules/core/src/main/java/org/apache/ignite/internal/visor/snapshot/VisorSnapshotCancelTask.java
##########
@@ -0,0 +1,62 @@
+/*
+ * 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.ignite.internal.visor.snapshot;
+
+import org.apache.ignite.IgniteException;
+import org.apache.ignite.IgniteSnapshot;
+import org.apache.ignite.internal.commandline.snapshot.SnapshotCommand;
+import org.apache.ignite.internal.processors.cache.persistence.snapshot.SnapshotMXBeanImpl;
+import org.apache.ignite.internal.processors.task.GridInternal;
+import org.apache.ignite.internal.visor.VisorJob;
+import org.apache.ignite.internal.visor.VisorOneNodeTask;
+
+/**
+ * @see SnapshotCommand
+ * @see IgniteSnapshot#cancelSnapshot(String)
+ */
+@GridInternal
+public class VisorSnapshotCancelTask extends VisorOneNodeTask<String, String> {
+ /** Serial version uid. */
+ private static final long serialVersionUID = 0L;
+
+ /** {@inheritDoc} */
+ @Override protected VisorJob<String, String> job(String arg) {
+ return new VisorSnapshotCancelJob(arg, debug);
+ }
+
+ /** */
+ private static class VisorSnapshotCancelJob extends VisorJob<String, String> {
+ /** Serial version uid. */
+ private static final long serialVersionUID = 0L;
+
+ /**
+ * @param name Snapshot name.
+ * @param debug Flag indicating whether debug information should be printed into node log.
+ */
+ protected VisorSnapshotCancelJob(String name, boolean debug) {
+ super(name, debug);
+ }
+
+ /** {@inheritDoc} */
+ @Override protected String run(String name) throws IgniteException {
+ new SnapshotMXBeanImpl(ignite.context()).cancelSnapshot(name);
+
+ return "Snapshot operation cancelled.";
Review comment:
Can we print `The cancel command has no effect. Snapshot already created.` if cancel will have no effect?
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[GitHub] [ignite] Mmuzaf commented on a change in pull request #7827: IGNITE-12978: add cancel snapshot support
Posted by GitBox <gi...@apache.org>.
Mmuzaf commented on a change in pull request #7827:
URL: https://github.com/apache/ignite/pull/7827#discussion_r429626716
##########
File path: modules/core/src/main/java/org/apache/ignite/internal/processors/cache/persistence/snapshot/IgniteSnapshotManager.java
##########
@@ -634,6 +642,66 @@ public boolean isSnapshotCreating() {
}
}
+ /** {@inheritDoc} */
+ @Override public IgniteFuture<Void> cancelSnapshot(String name) {
+ A.notNullOrEmpty(name, "Snapshot name must be not empty or null");
+
+ IgniteInternalFuture<Void> fut0 = cctx.kernalContext().closure()
+ .broadcast(new CancelSnapshotClosure(),
Review comment:
Nikita,
1. It's true that some operations may execute concurrently on snapshot cancellation operation.
Snapshot operation consists of four stages:
- start-stage
- start-stage result
- end-stage
- end-stage result
If cancel operation occurred when on start-stage than snapshot operation will be canceled. On other stages, it will have no effect since all the cache data already collected.
2. `clusterSnpFut` is set on coordinator only, so it has no effect in case described by you. If some of the local snapshot tasks finish with an error an the other with `CancelledException` than all results will be finished with `CancelledException` (all intermediate results will be deleted).
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[GitHub] [ignite] NSAmelchev commented on a change in pull request #7827: IGNITE-12978: add cancel snapshot support
Posted by GitBox <gi...@apache.org>.
NSAmelchev commented on a change in pull request #7827:
URL: https://github.com/apache/ignite/pull/7827#discussion_r429670962
##########
File path: modules/core/src/main/java/org/apache/ignite/internal/processors/cache/persistence/snapshot/IgniteSnapshotManager.java
##########
@@ -634,6 +642,66 @@ public boolean isSnapshotCreating() {
}
}
+ /** {@inheritDoc} */
+ @Override public IgniteFuture<Void> cancelSnapshot(String name) {
+ A.notNullOrEmpty(name, "Snapshot name must be not empty or null");
+
+ IgniteInternalFuture<Void> fut0 = cctx.kernalContext().closure()
+ .broadcast(new CancelSnapshotClosure(),
Review comment:
Ok, got it.
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[GitHub] [ignite] Mmuzaf commented on a change in pull request #7827: IGNITE-12978: add cancel snapshot support
Posted by GitBox <gi...@apache.org>.
Mmuzaf commented on a change in pull request #7827:
URL: https://github.com/apache/ignite/pull/7827#discussion_r429617961
##########
File path: modules/core/src/main/java/org/apache/ignite/internal/processors/cache/persistence/snapshot/SnapshotFutureTask.java
##########
@@ -627,7 +629,7 @@ private Runnable wrapExceptionIfStarted(IgniteThrowableRunner exec) {
/** {@inheritDoc} */
@Override public boolean cancel() {
- acceptException(new IgniteCheckedException("Snapshot operation has been cancelled by external process " +
+ acceptException(new IgniteFutureCancelledCheckedException("Snapshot operation has been cancelled by external process " +
Review comment:
Fixed.
##########
File path: modules/core/src/main/java/org/apache/ignite/internal/processors/cache/persistence/snapshot/IgniteSnapshotManager.java
##########
@@ -540,10 +542,14 @@ private void processLocalSnapshotStartStageResult(UUID id, Map<UUID, SnapshotOpe
missed.removeAll(res.keySet());
missed.removeAll(err.keySet());
- snpReq.hasErr = !F.isEmpty(err) || !missed.isEmpty();
+ boolean cancelled = err.values().stream()
+ .anyMatch(e -> e instanceof IgniteFutureCancelledCheckedException);
Review comment:
Fixed.
##########
File path: modules/core/src/main/java/org/apache/ignite/internal/processors/cache/persistence/snapshot/IgniteSnapshotManager.java
##########
@@ -540,10 +542,14 @@ private void processLocalSnapshotStartStageResult(UUID id, Map<UUID, SnapshotOpe
missed.removeAll(res.keySet());
missed.removeAll(err.keySet());
- snpReq.hasErr = !F.isEmpty(err) || !missed.isEmpty();
+ boolean cancelled = err.values().stream()
+ .anyMatch(e -> e instanceof IgniteFutureCancelledCheckedException);
- if (snpReq.hasErr) {
- U.warn(log, "Execution of local snapshot tasks fails or them haven't been executed " +
+ if (cancelled) {
+ snpReq.err = new IgniteFutureCancelledCheckedException("Execution of snapshot tasks " +
+ "has been cancelled by external process [err=" + err + ", missed=" + missed + ']');
+ } else if (!F.isEmpty(err) || !missed.isEmpty()) {
Review comment:
Fixed.
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[GitHub] [ignite] NSAmelchev commented on a change in pull request #7827: IGNITE-12978: add cancel snapshot support
Posted by GitBox <gi...@apache.org>.
NSAmelchev commented on a change in pull request #7827:
URL: https://github.com/apache/ignite/pull/7827#discussion_r429583927
##########
File path: modules/core/src/main/java/org/apache/ignite/internal/visor/snapshot/VisorSnapshotCancelTask.java
##########
@@ -0,0 +1,62 @@
+/*
+ * 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.ignite.internal.visor.snapshot;
+
+import org.apache.ignite.IgniteException;
+import org.apache.ignite.IgniteSnapshot;
+import org.apache.ignite.internal.commandline.snapshot.SnapshotCommand;
+import org.apache.ignite.internal.processors.cache.persistence.snapshot.SnapshotMXBeanImpl;
+import org.apache.ignite.internal.processors.task.GridInternal;
+import org.apache.ignite.internal.visor.VisorJob;
+import org.apache.ignite.internal.visor.VisorOneNodeTask;
+
+/**
+ * @see SnapshotCommand
+ * @see IgniteSnapshot#cancelSnapshot(String)
+ */
+@GridInternal
+public class VisorSnapshotCancelTask extends VisorOneNodeTask<String, String> {
+ /** Serial version uid. */
+ private static final long serialVersionUID = 0L;
+
+ /** {@inheritDoc} */
+ @Override protected VisorJob<String, String> job(String arg) {
+ return new VisorSnapshotCancelJob(arg, debug);
+ }
+
+ /** */
+ private static class VisorSnapshotCancelJob extends VisorJob<String, String> {
+ /** Serial version uid. */
+ private static final long serialVersionUID = 0L;
+
+ /**
+ * @param name Snapshot name.
+ * @param debug Flag indicating whether debug information should be printed into node log.
+ */
+ protected VisorSnapshotCancelJob(String name, boolean debug) {
+ super(name, debug);
+ }
+
+ /** {@inheritDoc} */
+ @Override protected String run(String name) throws IgniteException {
+ new SnapshotMXBeanImpl(ignite.context()).cancelSnapshot(name);
+
+ return "Snapshot operation cancelled.";
Review comment:
Can we print `The cancel command has no effect. Snapshot already created.` if cancel will have no effect?
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