Invalid value for the VECSUM_PASSES environment variable. Y

Error message

Invalid value for the VECSUM_PASSES environment variable.  You must set this to a number greater than 0.

What it means

Error "Invalid value for the VECSUM_PASSES environment variable. You must set this to a number greater than 0. " thrown in apache/hadoop.

Source

Thrown at hadoop-hdfs-project/hadoop-hdfs-native-client/src/main/native/libhdfs-tests/vecsum.c:204

        fprintf(stderr, "Can't parse VECSUM_LENGTH of '%s'.\n",
                length_str);
        goto error;
    }
    if (opts->length % VECSUM_CHUNK_SIZE) {
        fprintf(stderr, "VECSUM_LENGTH must be a multiple of '%lld'.  The "
                "currently specified length of '%lld' is not.\n",
                (long long)VECSUM_CHUNK_SIZE, (long long)opts->length);
        goto error;
    }
    pass_str = getenv("VECSUM_PASSES");
    if (!pass_str) {
        fprintf(stderr, "You must set the VECSUM_PASSES environment "
            "variable to the number of passes to make.\n");
        goto error;
    }
    opts->passes = atoi(pass_str);
    if (opts->passes <= 0) {
        fprintf(stderr, "Invalid value for the VECSUM_PASSES "
            "environment variable.  You must set this to a "
            "number greater than 0.\n");
        goto error;
    }
    ty_str = getenv("VECSUM_TYPE");
    if (!ty_str) {
        fprintf(stderr, "You must set the VECSUM_TYPE environment "
            "variable to " VECSUM_TYPE_VALID_VALUES "\n");
        goto error;
    }
    ty = parse_vecsum_type(ty_str);
    if (ty < 0) {
        fprintf(stderr, "Invalid VECSUM_TYPE environment variable.  "
            "Valid values are " VECSUM_TYPE_VALID_VALUES "\n");
        goto error;
    }
    opts->ty = ty;
    opts->rpc_address = getenv("VECSUM_RPC_ADDRESS");

View on GitHub (pinned to 2add963021)

Solutions

Set VECSUM_PASSES to an integer greater than 0, e.g. export VECSUM_PASSES=1.
Remove whitespace or non-numeric characters from the value.

When it happens

Trigger: VECSUM_PASSES failed numeric parsing or was <= 0.

Common situations: VECSUM_PASSES set to 0, a negative number, or non-numeric text.

AI-assisted analysis of apache/hadoop@2add963021 (2026-08-22). Data as JSON: /api/errors/a044c796ab4d6937. Report an issue: GitHub.