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[Feature] Support Cluster Snapshot Backup: SQL Interface and meta dat…
…a (part 1) (backport #54447) (#54505) Signed-off-by: srlch <[email protected]>
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118 changes: 118 additions & 0 deletions
118
fe/fe-core/src/main/java/com/starrocks/lake/snapshot/ClusterSnapshotMgr.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,118 @@ | ||
| // Copyright 2021-present StarRocks, Inc. All rights reserved. | ||
| // | ||
| // Licensed 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 | ||
| // | ||
| // https://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. | ||
|
|
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| package com.starrocks.lake.snapshot; | ||
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| import com.google.gson.annotations.SerializedName; | ||
| import com.starrocks.persist.ClusterSnapshotLog; | ||
| import com.starrocks.persist.ImageWriter; | ||
| import com.starrocks.persist.gson.GsonPostProcessable; | ||
| import com.starrocks.persist.metablock.SRMetaBlockEOFException; | ||
| import com.starrocks.persist.metablock.SRMetaBlockException; | ||
| import com.starrocks.persist.metablock.SRMetaBlockID; | ||
| import com.starrocks.persist.metablock.SRMetaBlockReader; | ||
| import com.starrocks.persist.metablock.SRMetaBlockWriter; | ||
| import com.starrocks.server.GlobalStateMgr; | ||
| import com.starrocks.sql.ast.AdminSetAutomatedSnapshotOffStmt; | ||
| import com.starrocks.sql.ast.AdminSetAutomatedSnapshotOnStmt; | ||
| import org.apache.logging.log4j.LogManager; | ||
| import org.apache.logging.log4j.Logger; | ||
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| import java.io.IOException; | ||
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| // only used for AUTOMATED snapshot for now | ||
| public class ClusterSnapshotMgr implements GsonPostProcessable { | ||
| public static final Logger LOG = LogManager.getLogger(ClusterSnapshotMgr.class); | ||
| public static final String AUTOMATED_NAME_PREFIX = "automated_cluster_snapshot"; | ||
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| @SerializedName(value = "automatedSnapshotSvName") | ||
| private String automatedSnapshotSvName = ""; | ||
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| public ClusterSnapshotMgr() {} | ||
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| // Turn on automated snapshot, use stmt for extension in future | ||
| public void setAutomatedSnapshotOn(AdminSetAutomatedSnapshotOnStmt stmt) { | ||
| String storageVolumeName = stmt.getStorageVolumeName(); | ||
| setAutomatedSnapshotOn(storageVolumeName); | ||
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| ClusterSnapshotLog log = new ClusterSnapshotLog(); | ||
| log.setCreateSnapshotNamePrefix(AUTOMATED_NAME_PREFIX, storageVolumeName); | ||
| GlobalStateMgr.getCurrentState().getEditLog().logClusterSnapshotLog(log); | ||
| } | ||
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| protected void setAutomatedSnapshotOn(String storageVolumeName) { | ||
| automatedSnapshotSvName = storageVolumeName; | ||
| } | ||
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| public String getAutomatedSnapshotSvName() { | ||
| return automatedSnapshotSvName; | ||
| } | ||
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| public boolean isAutomatedSnapshotOn() { | ||
| return automatedSnapshotSvName != null && !automatedSnapshotSvName.isEmpty(); | ||
| } | ||
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| // Turn off automated snapshot, use stmt for extension in future | ||
| public void setAutomatedSnapshotOff(AdminSetAutomatedSnapshotOffStmt stmt) { | ||
| setAutomatedSnapshotOff(); | ||
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| ClusterSnapshotLog log = new ClusterSnapshotLog(); | ||
| log.setDropSnapshot(AUTOMATED_NAME_PREFIX); | ||
| GlobalStateMgr.getCurrentState().getEditLog().logClusterSnapshotLog(log); | ||
| } | ||
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| protected void setAutomatedSnapshotOff() { | ||
| // drop AUTOMATED snapshot | ||
| automatedSnapshotSvName = ""; | ||
| } | ||
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| public void replayLog(ClusterSnapshotLog log) { | ||
| ClusterSnapshotLog.ClusterSnapshotLogType logType = log.getType(); | ||
| switch (logType) { | ||
| case CREATE_SNAPSHOT_PREFIX: { | ||
| String createSnapshotNamePrefix = log.getCreateSnapshotNamePrefix(); | ||
| String storageVolumeName = log.getStorageVolumeName(); | ||
| if (createSnapshotNamePrefix.equals(AUTOMATED_NAME_PREFIX)) { | ||
| setAutomatedSnapshotOn(storageVolumeName); | ||
| } | ||
| break; | ||
| } | ||
| case DROP_SNAPSHOT: { | ||
| String dropSnapshotName = log.getDropSnapshotName(); | ||
| if (dropSnapshotName.equals(AUTOMATED_NAME_PREFIX)) { | ||
| setAutomatedSnapshotOff(); | ||
| } | ||
| break; | ||
| } | ||
| default: { | ||
| LOG.warn("Invalid Cluster Snapshot Log Type {}", logType); | ||
| } | ||
| } | ||
| } | ||
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| public void save(ImageWriter imageWriter) throws IOException, SRMetaBlockException { | ||
| SRMetaBlockWriter writer = imageWriter.getBlockWriter(SRMetaBlockID.CLUSTER_SNAPSHOT_MGR, 1); | ||
| writer.writeJson(this); | ||
| writer.close(); | ||
| } | ||
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| public void load(SRMetaBlockReader reader) | ||
| throws SRMetaBlockEOFException, IOException, SRMetaBlockException { | ||
| ClusterSnapshotMgr data = reader.readJson(ClusterSnapshotMgr.class); | ||
| } | ||
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| @Override | ||
| public void gsonPostProcess() throws IOException { | ||
| } | ||
| } |
78 changes: 78 additions & 0 deletions
78
fe/fe-core/src/main/java/com/starrocks/persist/ClusterSnapshotLog.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,78 @@ | ||
| // Copyright 2021-present StarRocks, Inc. All rights reserved. | ||
| // | ||
| // Licensed 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 | ||
| // | ||
| // https://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. | ||
|
|
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| package com.starrocks.persist; | ||
|
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| import com.google.gson.annotations.SerializedName; | ||
| import com.starrocks.common.io.Text; | ||
| import com.starrocks.common.io.Writable; | ||
| import com.starrocks.persist.gson.GsonUtils; | ||
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| import java.io.DataInput; | ||
| import java.io.DataOutput; | ||
| import java.io.IOException; | ||
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| public class ClusterSnapshotLog implements Writable { | ||
| public enum ClusterSnapshotLogType { NONE, CREATE_SNAPSHOT_PREFIX, DROP_SNAPSHOT } | ||
| @SerializedName(value = "type") | ||
| private ClusterSnapshotLogType type = ClusterSnapshotLogType.NONE; | ||
| // For CREATE_SNAPSHOT_PREFIX | ||
| @SerializedName(value = "createSnapshotNamePrefix") | ||
| private String createSnapshotNamePrefix = ""; | ||
| @SerializedName(value = "storageVolumeName") | ||
| private String storageVolumeName = ""; | ||
| // For DROP_SNAPSHOT | ||
| @SerializedName(value = "dropSnapshotName") | ||
| private String dropSnapshotName = ""; | ||
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| public ClusterSnapshotLog() {} | ||
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| public void setCreateSnapshotNamePrefix(String createSnapshotNamePrefix, String storageVolumeName) { | ||
| this.type = ClusterSnapshotLogType.CREATE_SNAPSHOT_PREFIX; | ||
| this.createSnapshotNamePrefix = createSnapshotNamePrefix; | ||
| this.storageVolumeName = storageVolumeName; | ||
| } | ||
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| public void setDropSnapshot(String dropSnapshotName) { | ||
| this.type = ClusterSnapshotLogType.DROP_SNAPSHOT; | ||
| this.dropSnapshotName = dropSnapshotName; | ||
| } | ||
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| public ClusterSnapshotLogType getType() { | ||
| return type; | ||
| } | ||
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| public String getCreateSnapshotNamePrefix() { | ||
| return this.createSnapshotNamePrefix; | ||
| } | ||
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| public String getStorageVolumeName() { | ||
| return this.storageVolumeName; | ||
| } | ||
|
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| public String getDropSnapshotName() { | ||
| return this.dropSnapshotName; | ||
| } | ||
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| public static ClusterSnapshotLog read(DataInput in) throws IOException { | ||
| String json = Text.readString(in); | ||
| return GsonUtils.GSON.fromJson(json, ClusterSnapshotLog.class); | ||
| } | ||
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| @Override | ||
| public void write(DataOutput out) throws IOException { | ||
| String json = GsonUtils.GSON.toJson(this); | ||
| Text.writeString(out, json); | ||
| } | ||
| } |
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