Can you please have a crack at loading Fannie Mae data?

[xiaodaigh]

I still can't load the Fannie Mae data.

I have written some example code but it takes more than 5 hours and still fails.

The data requires a login to download and the data is 135G in size.

using Distributed, Statistics
addprocs(6)

@time @everywhere using JuliaDB, Dagger

datapath = "c:/data/Performance_All/"
ifiles = joinpath.(datapath, readdir(datapath))

colnames = ["loan_id", "monthly_rpt_prd", "servicer_name", "last_rt", "last_upb", "loan_age",
    "months_to_legal_mat" , "adj_month_to_mat", "maturity_date", "msa", "delq_status",
    "mod_flag", "zero_bal_code", "zb_dte", "lpi_dte", "fcc_dte","disp_dt", "fcc_cost",
    "pp_cost", "ar_cost", "ie_cost", "tax_cost", "ns_procs", "ce_procs", "rmw_procs",
    "o_procs", "non_int_upb", "prin_forg_upb_fhfa", "repch_flag", "prin_forg_upb_oth",
    "transfer_flg"];


fsz = (x->stat(x).size).(ifiles)

nchunks = ceil.(fsz./(250*1024*1024))

mkcmd(in, out, nchunks) = begin
    "split $in -n l/$(Int(nchunks)) -d $out"
end

open("c:/data/script", "w") do f
    for m in mkcmd.(ifiles, "/c/data/Performance_All_split/".*readdir(datapath), nchunks)[nchunks .>= 2]
        write(f, m*"\n")
    end
end

#####################################################################
############## execute the above to split the csvs into smaller csvs
#####################################################################

const fmtypes = [
    String,                     Union{String, Missing},     Union{String, Missing},     Union{Float64, Missing},    Union{Float64, Missing},
    Union{Float64, Missing},    Union{Float64, Missing},    Union{Float64, Missing},    Union{String, Missing},     Union{String, Missing},
    Union{String, Missing},     Union{String, Missing},     Union{String, Missing},     Union{String, Missing},     Union{String, Missing},
    Union{String, Missing},     Union{String, Missing},     Union{Float64, Missing},    Union{Float64, Missing},    Union{Float64, Missing},
    Union{Float64, Missing},    Union{Float64, Missing},    Union{Float64, Missing},    Union{Float64, Missing},    Union{Float64, Missing},
    Union{Float64, Missing},    Union{Float64, Missing},    Union{Float64, Missing},    Union{String, Missing},     Union{Float64, Missing},
    Union{String, Missing}]


#datapath = "C:/data/Performance_All_split"
datapath = "C:/data/ok"
ifiles = joinpath.(datapath, readdir(datapath))

# takes more than 5 hours and then fails.
@time jll = loadtable(
    ifiles,
    output = "c:/data/fm.jldb\\",
    delim='|',
    header_exists=false,
    filenamecol = "filename",
    chunks = length(ifiles),
    #type_detect_rows = 20000,
    colnames = colnames,
    colparsers = fmtypes,
    indexcols=["loan_id", "monthly_rpt_prd"])

using JuliaDB

@time a = load("c:/data/fm.jldb/")