TPC-H benchmark tools

This repository facilitates the use of the TPC-H benchmark (or, more precisely, the TPC-H benchmark data and individual queries) for DBMS-related work in and around the MonetDB in-memory DBMS

Specifically, the repository comprises:

• A script for automating the tasks of building and running the data generation, creating a MonetDB database with the appropriate schema and constraints, and loading the generated data into that DB.
• A set of query files, for each of the benchmark's 22 queries - with typical choices for the non-fixed values (e.g. green for [COLOR] in Q9).
• A set of expected result files, one for each query.
• Miscellaneous additional potentially useful scripts and SQL queries.
• dbgen, the TPC's data generation utility for TPC-H. It is included in this repository as a submodule, linked to eyalroz/tpch-dbgen where it's maintained separately (with several fixes of issues over the TPC's own version). Note: You have to perform a recursive clone (git clone --recursive git@github.com:eyalroz/tpch-tools.git) to also have get the contents of this submodule.

The repository does not contain:

• The specifications of the TPC-H benchmark. The specs are from the TPC Website, or you can directly downloaded the Benchmarks Specs PDF.
• Source code or compiled binaries for actually executing the TPC-H benchmark, i.e. randomly sending variants of the 22 queries to a server. The qgen utility, in the dbgen/ subdirectory, can generate these random queries, but it won't open a connection and throw them at your DBMS using the appropriate line protocol.

Currently, only MonetDB is supported as the DBMS into which data is to be loaded - but in the future this may expand.

Requirements

• The Bourne Again Shell - bash
• various typical Unix-ish command-line tools: unzip, sed, echo and so on.
• MonetDB installed and running
• Enough disk space for the data you want (for SF 1 you're likely to need ~ 2 GB - for the generated pre-loading data and the loaded data together; but this will drop after you delete the pre-loading data down to ~ 1 GB)

Getting started

1. Make sure you have a MonetDB 'Database Farm' set up (see the MonetDB tutorial if you're not sure how to do that)
2. Invoke ./scripts/setup-tpch-db to generate data for some scale factor; it has the following command-line options:

Options:
-r, --recreate              If the TPC-H database exists, recreate it, dropping
                            all existing data. (If this option is unset, the 
                            database must not already exist)
-s, --scale-factor FACTOR   The amount of test data to generate, in GB
-G, --use-generated         Use previously-generated table load files (in the
                            data generation directory instead of re-generating
                            them using the dbgen utility.
-l, --log-file FILENAME     Name of the file to log output into
-d, --db-name NAME          Name of the database holding TPC-H test data
                            within the DB farm
-f, --db-farm PATH          Filesystem path for the root directory of the DB farm
                            with the generated DB
-p, --platform PLATFORM     Platform for which to try building the data 
                            generation utility (one of ATT DOS HP IBM ICL MVS SGI
                            SUN U2200 VMS LINUX WIN32 MAC)
-P, --port NUMBER           Network port on the local host, which the server
                            will related to the DB farm
-D, --data-gen-dir PATH     directory in which to generate the TPC-H table data
-k, --keep-raw-tables       Keep the raw data generated by the tool outside of
                            the DBMS
-v, --verbose               Be verbose

3. Execute scripts/run_benchmark_queries.sh -v as a sanity check, to make sure you get results that look like the expected answer (you can also diff-compare the results you get with scripts/run_benchmark_queries.sh -w to the reference results in expected_results/).

Questions? Requests? Feedback? Bugs?

Feel free to open an issue or write me.