How to use

ThreadLocalTaskInfo

in

org.apache.carbondata.core.util

 public static CarbonTaskInfo getCarbonTaskInfo() {
  if (null == threadLocal.get()) {
   CarbonTaskInfo carbonTaskInfo = new CarbonTaskInfo();
   carbonTaskInfo.setTaskId(CarbonUtil.generateUUID());
   ThreadLocalTaskInfo.setCarbonTaskInfo(carbonTaskInfo);
  }
  return threadLocal.get();
 }
}

.freeMemoryAll(ThreadLocalTaskInfo.getCarbonTaskInfo().getTaskId());

public UnsafeSortDataRows(SortParameters parameters,
  UnsafeIntermediateMerger unsafeInMemoryIntermediateFileMerger, int inMemoryChunkSize) {
 this.parameters = parameters;
 this.tableFieldStat = new TableFieldStat(parameters);
 this.reUsableByteArrayDataOutputStream = new ThreadLocal<ReUsableByteArrayDataOutputStream>() {
  @Override protected ReUsableByteArrayDataOutputStream initialValue() {
   ByteArrayOutputStream byteStream = new ByteArrayOutputStream();
   return new ReUsableByteArrayDataOutputStream(byteStream);
  }
 };
 this.unsafeInMemoryIntermediateFileMerger = unsafeInMemoryIntermediateFileMerger;
 // observer of writing file in thread
 this.threadStatusObserver = new ThreadStatusObserver();
 this.taskId = ThreadLocalTaskInfo.getCarbonTaskInfo().getTaskId();
 this.inMemoryChunkSize = inMemoryChunkSize * 1024L * 1024L;
 enableInMemoryIntermediateMerge = Boolean.parseBoolean(CarbonProperties.getInstance()
   .getProperty(CarbonCommonConstants.ENABLE_INMEMORY_MERGE_SORT,
     CarbonCommonConstants.ENABLE_INMEMORY_MERGE_SORT_DEFAULT));
 this.maxSizeAllowed = parameters.getBatchSortSizeinMb();
 if (maxSizeAllowed <= 0) {
  // If user does not input any memory size, then take half the size of usable memory configured
  // in sort memory size.
  this.maxSizeAllowed = UnsafeMemoryManager.INSTANCE.getUsableMemory() / 2;
 } else {
  this.maxSizeAllowed = this.maxSizeAllowed * 1024L * 1024L;
 }
}

CarbonTaskInfo carbonTaskInfo = new CarbonTaskInfo();
carbonTaskInfo.setTaskId(CarbonUtil.generateUUID());
ThreadLocalTaskInfo.setCarbonTaskInfo(carbonTaskInfo);
TableInfo tableInfo = request.tableInfo();
CarbonTable table = CarbonTable.buildFromTableInfo(tableInfo);