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cache vid locations

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This commit is contained in:
Chris Lu 2020-07-29 18:25:52 -07:00
parent b684c312d2
commit daf8c0c8ce
2 changed files with 13 additions and 7 deletions
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17
other/java/client/src/main/java/seaweedfs/client/FileChunkManifest.java
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@ -6,7 +6,6 @@ import org.slf4j.LoggerFactory;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
public class FileChunkManifest {
@ -51,13 +50,17 @@ public class FileChunkManifest {
private static byte[] fetchChunk(final FilerGrpcClient filerGrpcClient, FilerProto.FileChunk chunk) throws IOException {
FilerProto.LookupVolumeRequest.Builder lookupRequest = FilerProto.LookupVolumeRequest.newBuilder();
String vid = "" + chunk.getFid().getVolumeId();
lookupRequest.addVolumeIds(vid);
FilerProto.LookupVolumeResponse lookupResponse = filerGrpcClient
.getBlockingStub().lookupVolume(lookupRequest.build());
Map<String, FilerProto.Locations> vid2Locations = lookupResponse.getLocationsMapMap();
FilerProto.Locations locations = vid2Locations.get(vid);
FilerProto.Locations locations = filerGrpcClient.vidLocations.get(vid);
if (locations == null) {
FilerProto.LookupVolumeRequest.Builder lookupRequest = FilerProto.LookupVolumeRequest.newBuilder();
lookupRequest.addVolumeIds(vid);
FilerProto.LookupVolumeResponse lookupResponse = filerGrpcClient
.getBlockingStub().lookupVolume(lookupRequest.build());
locations = lookupResponse.getLocationsMapMap().get(vid);
filerGrpcClient.vidLocations.put(vid, locations);
LOG.warn("fetchChunk vid:{} locations:{}", vid, locations);
}
SeaweedRead.ChunkView chunkView = new SeaweedRead.ChunkView(
FilerClient.toFileId(chunk.getFid()), // avoid deprecated chunk.getFileId()

3
other/java/client/src/main/java/seaweedfs/client/FilerGrpcClient.java
View file

@ -9,6 +9,8 @@ import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import javax.net.ssl.SSLException;
import java.util.Map;
import java.util.HashMap;
import java.util.concurrent.TimeUnit;
public class FilerGrpcClient {
@ -24,6 +26,7 @@ public class FilerGrpcClient {
}
}
public final Map<String, FilerProto.Locations> vidLocations = new HashMap<>();
private final ManagedChannel channel;
private final SeaweedFilerGrpc.SeaweedFilerBlockingStub blockingStub;
private final SeaweedFilerGrpc.SeaweedFilerStub asyncStub;