How to use

readRpcIds

method

in

org.apache.hadoop.hdfs.server.namenode.FSEditLogOp$DeleteOp

@Override
void readFields(DataInputStream in, int logVersion)
  throws IOException {
 if (!NameNodeLayoutVersion.supports(
   LayoutVersion.Feature.EDITLOG_OP_OPTIMIZATION, logVersion)) {
  this.length = in.readInt();
  if (this.length != 2) {
   throw new IOException("Incorrect data format. " + "delete operation.");
  }
 }
 this.path = FSImageSerialization.readString(in);
 if (NameNodeLayoutVersion.supports(
   LayoutVersion.Feature.EDITLOG_OP_OPTIMIZATION, logVersion)) {
  this.timestamp = FSImageSerialization.readLong(in);
 } else {
  this.timestamp = readLong(in);
 }
 // read RPC ids if necessary
 readRpcIds(in, logVersion);
}

@Override
void readFields(DataInputStream in, int logVersion)
  throws IOException {
 if (!NameNodeLayoutVersion.supports(
   LayoutVersion.Feature.EDITLOG_OP_OPTIMIZATION, logVersion)) {
  this.length = in.readInt();
  if (this.length != 2) {
   throw new IOException("Incorrect data format. " + "delete operation.");
  }
 }
 this.path = FSImageSerialization.readString(in);
 if (NameNodeLayoutVersion.supports(
   LayoutVersion.Feature.EDITLOG_OP_OPTIMIZATION, logVersion)) {
  this.timestamp = FSImageSerialization.readLong(in);
 } else {
  this.timestamp = readLong(in);
 }
 // read RPC ids if necessary
 readRpcIds(in, logVersion);
}

@Override
void readFields(DataInputStream in, int logVersion)
  throws IOException {
 if (!NameNodeLayoutVersion.supports(
   LayoutVersion.Feature.EDITLOG_OP_OPTIMIZATION, logVersion)) {
  this.length = in.readInt();
  if (this.length != 2) {
   throw new IOException("Incorrect data format. " + "delete operation.");
  }
 }
 this.path = FSImageSerialization.readString(in);
 if (NameNodeLayoutVersion.supports(
   LayoutVersion.Feature.EDITLOG_OP_OPTIMIZATION, logVersion)) {
  this.timestamp = FSImageSerialization.readLong(in);
 } else {
  this.timestamp = readLong(in);
 }
 // read RPC ids if necessary
 readRpcIds(in, logVersion);
}