apache/hadoop · error

Error: signal %d:

Error message

Error: signal %d:

What it means

Error "Error: signal %d:" thrown in apache/hadoop.

Source

Thrown at hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask/src/main/native/src/lib/NativeObjectFactory.cc:43

#include "lib/NativeObjectFactory.h"
#include "lib/NativeLibrary.h"
#include "lib/BufferStream.h"
#include "util/StringUtil.h"
#include "util/SyncUtils.h"
#include "util/WritableUtils.h"
#include "handler/BatchHandler.h"
#include "handler/MCollectorOutputHandler.h"
#include "handler/CombineHandler.h"

using namespace NativeTask;

// TODO: just for debug, should be removed
extern "C" void handler(int sig) {
  void *array[10];
  size_t size;

  // print out all the frames to stderr
  fprintf(stderr, "Error: signal %d:\n", sig);

#ifndef __CYGWIN__
  // get void*'s for all entries on the stack
  size = backtrace(array, 10);

  backtrace_symbols_fd(array, size, 2);
#endif

  exit(1);
}

DEFINE_NATIVE_LIBRARY(NativeTask) {
  REGISTER_CLASS(BatchHandler, NativeTask);
  REGISTER_CLASS(CombineHandler, NativeTask);
  REGISTER_CLASS(MCollectorOutputHandler, NativeTask);
  NativeObjectFactory::SetDefaultClass(BatchHandlerType, "NativeTask.BatchHandler");
}

View on GitHub (pinned to 2add963021)

Solutions

1. Inspect the native library crash: check the task's stderr/core dump for the signal and fix the underlying native fault (often memory or ABI mismatch).
2. Rebuild libnativetask for the current platform/Hadoop version if the signal stems from an incompatible binary.

When it happens

Trigger: Raised in NativeObjectFactory.cc when the nativetask native library receives a fatal signal during object creation. Indicates a crash in native code; check native logs/core dump and ensure libnativetask.so matches the Hadoop version.

Common situations: See trigger scenarios.

AI-assisted analysis of apache/hadoop@2add963021 (2026-08-22). Data as JSON: /api/errors/50d96a21c7981f12. Report an issue: GitHub.