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Vastly increase legacy data migration speed 

Going from 9 seconds to 486ms

a
This commit is contained in:
Christian Koop 2021-07-20 18:37:13 +02:00
parent 431005e01a
commit db4cc5944f
No known key found for this signature in database
GPG Key ID: 89A8181384E010A3
3 changed files with 19 additions and 11 deletions
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21
src/main/java/com/songoda/epicanchors/files/DataManager.java
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@ -17,6 +17,7 @@ import org.jetbrains.annotations.Nullable;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
@ -141,9 +142,9 @@ public class DataManager extends DataManagerAbstract {
SQLException err = null;
for (AnchorMigration.LegacyAnchorEntry entry : anchorEntries) {
try (PreparedStatement ps = con.prepareStatement("INSERT INTO " + this.anchorTable +
"(world_name,x,y,z, ticks_left) VALUES (?,?,?,?, ?);")) {
try (PreparedStatement ps = con.prepareStatement("INSERT INTO " + this.anchorTable +
"(world_name,x,y,z, ticks_left) VALUES (?,?,?,?, ?);")) {
for (AnchorMigration.LegacyAnchorEntry entry : anchorEntries) {
ps.setString(1, entry.worldName);
ps.setInt(2, entry.x);
ps.setInt(3, entry.y);
@ -151,10 +152,18 @@ public class DataManager extends DataManagerAbstract {
ps.setInt(5, entry.ticksLeft);
ps.executeUpdate();
} catch (SQLException ex) {
err = ex;
ps.addBatch();
}
int[] batchRes = ps.executeBatch();
for (int i : batchRes) {
if (i < 0 && i != Statement.SUCCESS_NO_INFO) {
throw new AssertionError("Batch-INSERT failed for at least one statement with code " + i + "");
}
}
} catch (SQLException ex) {
err = ex;
}
if (err == null) {

3
src/main/java/com/songoda/epicanchors/files/Settings.java
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@ -6,13 +6,14 @@ import com.songoda.core.configuration.Config;
import com.songoda.core.configuration.ConfigSetting;
import com.songoda.core.hooks.EconomyManager;
import com.songoda.epicanchors.EpicAnchors;
import org.bukkit.plugin.java.JavaPlugin;
public class Settings {
private Settings() {
throw new IllegalStateException("Utility class");
}
public static final Config config = EpicAnchors.getPlugin(EpicAnchors.class).getCoreConfig();
public static final Config config = JavaPlugin.getPlugin(EpicAnchors.class).getCoreConfig();
public static final ConfigSetting NAME_TAG = new ConfigSetting(config, "Main.Name Tag",
"&6Anchor &8(&7{REMAINING}&8)",

6
src/main/java/com/songoda/epicanchors/files/migration/AnchorMigration.java
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@ -8,7 +8,7 @@ import com.songoda.core.database.DatabaseConnector;
import com.songoda.epicanchors.files.DataManager;
import com.songoda.epicanchors.utils.ThreadSync;
import org.bukkit.Location;
import org.bukkit.plugin.java.JavaPlugin;
import org.bukkit.plugin.Plugin;
import java.io.IOException;
import java.nio.file.Files;
@ -27,9 +27,7 @@ public class AnchorMigration extends DataMigrationManager {
this.dataManager = dataManager;
}
// TODO: Migration of a lot of Anchors takes **very** long (1100 anchors => 9 seconds)
// This is easily fixed by putting all inserts into one big transaction but prevents us from
public void migrateLegacyData(JavaPlugin plugin) {
public void migrateLegacyData(Plugin plugin) {
long start = System.nanoTime();
AtomicBoolean abortMigration = new AtomicBoolean(false);