possibly fix concurrent access to entry object in SeaweedOutputStream

LICENSE

@@ -1,4 +1,4 @@
-                                 Apache License
+g                                 Apache License
                            Version 2.0, January 2004
                         http://www.apache.org/licenses/
 

other/java/client/src/main/java/seaweedfs/client/SeaweedWrite.java

@@ -45,9 +45,7 @@ public class SeaweedWrite {
 
         String etag = multipartUpload(targetUrl, auth, bytes, bytesOffset, bytesLength, cipherKey);
 
-        // cache fileId ~ bytes
-        SeaweedRead.chunkCache.setChunk(fileId, bytes);
-
+        synchronized (entry) {
             entry.addChunks(FilerProto.FileChunk.newBuilder()
                     .setFileId(fileId)
                     .setOffset(offset)
@@ -56,11 +54,16 @@ public class SeaweedWrite {
                     .setETag(etag)
                     .setCipherKey(cipherKeyString)
             );
+        }
+
+        // cache fileId ~ bytes
+        SeaweedRead.chunkCache.setChunk(fileId, bytes);
 
     }
 
     public static void writeMeta(final FilerGrpcClient filerGrpcClient,
                                  final String parentDirectory, final FilerProto.Entry.Builder entry) {
+        synchronized (entry){
             filerGrpcClient.getBlockingStub().createEntry(
                     FilerProto.CreateEntryRequest.newBuilder()
                             .setDirectory(parentDirectory)
@@ -68,6 +71,7 @@ public class SeaweedWrite {
                             .build()
             );
         }
+    }
 
     private static String multipartUpload(String targetUrl,
                                           String auth,

other/java/hdfs2/src/main/java/seaweed/hdfs/SeaweedOutputStream.java

@@ -69,9 +69,6 @@ public class SeaweedOutputStream extends OutputStream {
     }
 
     private synchronized void flushWrittenBytesToServiceInternal(final long offset) throws IOException {
-
-        LOG.debug("SeaweedWrite.writeMeta path: {} entry:{}", path, entry);
-
         try {
             SeaweedWrite.writeMeta(filerGrpcClient, getParentDirectory(path), entry);
         } catch (Exception ex) {

other/java/hdfs3/src/main/java/seaweed/hdfs/SeaweedOutputStream.java

@@ -78,9 +78,6 @@ public class SeaweedOutputStream extends OutputStream implements Syncable, Strea
     }
 
     private synchronized void flushWrittenBytesToServiceInternal(final long offset) throws IOException {
-
-        LOG.debug("SeaweedWrite.writeMeta path: {} entry:{}", path, entry);
-
         try {
             SeaweedWrite.writeMeta(filerGrpcClient, getParentDirectory(path), entry);
         } catch (Exception ex) {