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Async migrate

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This commit is contained in:
Andrea Cavalli 2024-03-30 04:05:15 +01:00
parent 0983eb6d29
commit c26e40b905
1 changed files with 54 additions and 15 deletions
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69
src/main/java/it/cavallium/rockserver/core/Migrate.java
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@ -12,10 +12,18 @@ import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.atomic.AtomicLong;
import java.util.concurrent.atomic.LongAdder;
import org.apache.thrift.TApplicationException;
import org.apache.thrift.TException;
import org.apache.thrift.async.AsyncMethodCallback;
import org.apache.thrift.async.TAsyncClientManager;
import org.apache.thrift.protocol.TBinaryProtocol;
import org.apache.thrift.transport.TNonblockingSocket;
import org.apache.thrift.transport.TNonblockingTransport;
import org.apache.thrift.transport.TSocket;
import org.apache.thrift.transport.TTransportException;
import org.apache.thrift.transport.layered.TFramedTransport;
import org.bson.BasicBSONEncoder;
import org.bson.BasicBSONObject;
@ -26,15 +34,12 @@ public class Migrate {
public static void main(String[] args) throws TException, IOException {
// Tunables
String n = "401";
String n = "402";
var columnName = "peers_dtg-slave-" + n;
var columnSchema = new ColumnSchema(List.of(Long.BYTES), List.of(), true);
//
var transport = new TFramedTransport(new TSocket("10.0.0.9", 5332));
transport.open();
var jo = Document.parse("{\"data\": " + Files.readString(Path.of("/tmp/export/" + columnName + ".json")) + "}");
var jo = Document.parse("{\"data\": " + Files.readString(Path.of("/home/cavallium/tmp_export/" + columnName + ".json")) + "}");
List<Document> documents = (List<Document>) jo.get("data");
jo = null;
@ -61,26 +66,60 @@ public class Migrate {
documents = null;
System.gc();
System.out.println("parsed documents");
var protocol = new TBinaryProtocol(transport);
var client = new RocksDB.Client(protocol);
long columnId = client.createColumn(columnName, columnSchema);
var encoder = new BasicBSONEncoder();
long nn = 0;
var protocol = new TBinaryProtocol.Factory();
var clients = ThreadLocal.withInitial(() -> {
try {
return new RocksDB.AsyncClient(protocol, new TAsyncClientManager(), new TNonblockingSocket("10.0.0.9", 5332));
} catch (IOException | TTransportException e) {
throw new RuntimeException(e);
}
});
var columnIdFuture = new CompletableFuture<Long>();
clients.get().createColumn(columnName, columnSchema, new AsyncMethodCallback<>() {
@Override
public void onComplete(Long response) {
columnIdFuture.complete(response);
}
@Override
public void onError(Exception exception) {
columnIdFuture.completeExceptionally(exception);
}
});
long columnId = columnIdFuture.join();
var encoder = ThreadLocal.withInitial(BasicBSONEncoder::new);
AtomicLong next = new AtomicLong();
long total = documentMap.size();
var initTime = Instant.now();
for (Entry<Long, BasicBSONObject> longDocumentEntry : documentMap) {
documentMap.stream().parallel().forEach(longDocumentEntry -> {
ByteBuffer bb = ByteBuffer.allocate(Long.BYTES);
bb.asLongBuffer().put(longDocumentEntry.getKey());
var valueArray = encoder.encode(longDocumentEntry.getValue());
var valueArray = encoder.get().encode(longDocumentEntry.getValue());
var valueBuf = ByteBuffer.wrap(valueArray);
client.putFast(0, columnId, List.of(bb), valueBuf);
try {
var putFuture = new CompletableFuture<Void>();
clients.get().putFast(0, columnId, List.of(bb), valueBuf, new AsyncMethodCallback<>() {
@Override
public void onComplete(Void response) {
putFuture.complete(null);
}
@Override
public void onError(Exception exception) {
putFuture.completeExceptionally(exception);
}
});
putFuture.join();
} catch (TException e) {
throw new RuntimeException(e);
}
var nn = next.incrementAndGet();
if (nn > 0 && nn % 10_000 == 0) {
var endTime = Instant.now();
var dur = Duration.between(initTime, endTime);
System.out.printf("Written %d/%d elements... %.2f, speed: %.2fHz%n", nn, total, ((nn * 100d) / total), nn / (dur.toMillis() / 1000d));
}
nn++;
}
});
var endTime = Instant.now();
var dur = Duration.between(initTime, endTime);
if (total > 0) System.out.printf("Took %s, speed: %.2fHz%n", dur, total / (dur.toMillis() / 1000d));