apache/hadoop · error

fuseConnect(usrname=%s): fuseNewConnect failed with error co

Error message

fuseConnect(usrname=%s): fuseNewConnect failed with error code %d

What it means

Error "fuseConnect(usrname=%s): fuseNewConnect failed with error code %d " thrown in apache/hadoop.

Source

Thrown at hadoop-hdfs-project/hadoop-hdfs-native-client/src/main/native/fuse-dfs/fuse_connect.c:570

 */
static int fuseConnect(const char *usrname, struct fuse_context *ctx,
                struct hdfsConn **out)
{
  int ret;
  struct hdfsConn* conn;

  char kpath[PATH_MAX] = { 0 };
  if (gHdfsAuthConf == AUTH_CONF_KERBEROS) {
    findKerbTicketCachePath(ctx, kpath, sizeof(kpath));
  }

  pthread_mutex_lock(&gConnMutex);
  conn = hdfsConnFind(usrname, kpath);
  if (!conn) {
    ret = fuseNewConnect(usrname, ctx, &conn);
    if (ret) {
      pthread_mutex_unlock(&gConnMutex);
      fprintf(stderr, "fuseConnect(usrname=%s): fuseNewConnect failed with "
              "error code %d\n", usrname, ret);
      return ret;
    }
  }
  conn->refcnt++;
  conn->expirationCount = (gExpiryPeriod + gTimerPeriod - 1) / gTimerPeriod;
  if (conn->expirationCount < 2)
    conn->expirationCount = 2;
  pthread_mutex_unlock(&gConnMutex);
  *out = conn;
  return 0;
}

int fuseConnectAsThreadUid(struct hdfsConn **conn)
{
  struct fuse_context *ctx;
  char *usrname;
  int ret;

View on GitHub (pinned to 2add963021)

Solutions

1. Inspect the error code from fuseNewConnect; resolve the underlying connection failure (kinit, classpath, NameNode reachability) and retry the FUSE operation.

When it happens

Trigger: Thrown at hadoop-hdfs-project/hadoop-hdfs-native-client/src/main/native/fuse-dfs/fuse_connect.c:570 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of apache/hadoop@2add963021 (2026-08-22). Data as JSON: /api/errors/fcb470459652ef4a. Report an issue: GitHub.