{"record":{"id":"3970b4c3cd8ecde0","repo":"apache/hadoop","slug":"fuseconnecttest-failed-with-error-code-d","errorCode":null,"errorMessage":"fuseConnectTest failed with error code %d\n","messagePattern":"fuseConnectTest failed with error code (.+?)\n","errorType":"console","errorClass":null,"httpStatus":null,"severity":"error","filePath":"hadoop-hdfs-project/hadoop-hdfs-native-client/src/main/native/fuse-dfs/fuse_connect.c","lineNumber":615,"sourceCode":"  ret = fuseConnect(usrname, ctx, conn);\n  free(usrname);\n  return ret;\n}\n\nint fuseConnectTest(void)\n{\n  int ret;\n  struct hdfsConn *conn;\n\n  if (gHdfsAuthConf == AUTH_CONF_KERBEROS) {\n    // TODO: call some method which can tell us whether the FS exists.  In order\n    // to implement this, we have to add a method to FileSystem in order to do\n    // this without valid Kerberos authentication.  See HDFS-3674 for details.\n    return 0;\n  }\n  ret = fuseNewConnect(\"root\", NULL, &conn);\n  if (ret) {\n    fprintf(stderr, \"fuseConnectTest failed with error code %d\\n\", ret);\n    return ret;\n  }\n  hdfsConnRelease(conn);\n  return 0;\n}\n\nstruct hdfs_internal* hdfsConnGetFs(struct hdfsConn *conn)\n{\n  return conn->fs;\n}\n\nvoid hdfsConnRelease(struct hdfsConn *conn)\n{\n  pthread_mutex_lock(&gConnMutex);\n  conn->refcnt--;\n  if ((conn->refcnt == 0) && (conn->condemned)) {\n    fprintf(stderr, \"hdfsConnRelease(usrname=%s): freeing condemend FS!\\n\",\n      conn->usrname);","sourceCodeStart":597,"sourceCodeEnd":633,"githubUrl":"https://github.com/apache/hadoop/blob/2add9630210752f88ceb1bb74eb65e37bf41da8e/hadoop-hdfs-project/hadoop-hdfs-native-client/src/main/native/fuse-dfs/fuse_connect.c#L597-L633","documentation":"Error \"fuseConnectTest failed with error code %d\n\" thrown in apache/hadoop.","triggerScenarios":"Thrown at hadoop-hdfs-project/hadoop-hdfs-native-client/src/main/native/fuse-dfs/fuse_connect.c:615 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":["Check the fuse-dfs connection test error code; verify Kerberos tickets (kinit), Hadoop configuration, and NameNode availability before mounting fuse-dfs."],"exampleFix":null,"handlingStrategy":null,"validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"2add9630210752f88ceb1bb74eb65e37bf41da8e","analyzedAt":"2026-08-22T19:55:07.957Z","schemaVersion":2},"datasetVersion":"2026-08-22T20:17:22.307Z"}