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Commit c6cac819 authored by Ranadeep Biswas's avatar Ranadeep Biswas
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Updated code

parent a0fea73d
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Cargo.toml
View file @ c6cac819
......@@ -4,8 +4,10 @@ version = "0.1.0"
authors = ["Ranadeep Biswas <ranadip.bswas@gmail.com>"]
[dependencies]
mysql = "12.3.1"
rand = "0.5"
mysql = "*"
rand = "*"
clap = "*"
ansi_term = "*"
[profile.release]
opt-level = 3
examples/galera.rs 0 → 100644
View file @ c6cac819
extern crate clap;
extern crate dbcop;
extern crate mysql;
use dbcop::db::cluster::{Cluster, ClusterNode, Node, TestParams};
use dbcop::db::history::Transaction;
use clap::{App, Arg};
#[derive(Debug)]
pub struct GaleraNode {
addr: String,
id: usize,
}
impl From<Node> for GaleraNode {
fn from(node: Node) -> Self {
GaleraNode {
addr: format!("mysql://{}@{}", "root", node.ip),
id: node.id,
}
}
}
impl ClusterNode for GaleraNode {
fn exec_session(&self, hist: &mut Vec<Transaction>) {
match mysql::Pool::new(self.addr.clone()) {
Ok(conn) => hist.iter_mut().for_each(|transaction| {
for mut sqltxn in conn.start_transaction(
false,
Some(mysql::IsolationLevel::Serializable),
Some(false),
) {
transaction.events.iter_mut().for_each(|event| {
if event.write {
match sqltxn.prep_exec(
"UPDATE dbcop.variables SET val=? WHERE var=?",
(event.value, event.variable),
) {
Ok(_) => event.success = true,
Err(_e) => {
assert_eq!(event.success, false);
// println!("WRITE ERR -- {:?}", _e);
}
}
} else {
match sqltxn.prep_exec(
"SELECT * FROM dbcop.variables WHERE var=?",
(event.variable,),
) {
Ok(mut result) => {
if let Some(q_result) = result.next() {
let mut row = q_result.unwrap();
if let Some(value) = row.take("val") {
event.value = value;
event.success = true;
}
} else {
// may be diverged
assert_eq!(event.success, false);
}
}
Err(_e) => {
// println!("READ ERR -- {:?}", _e);
assert_eq!(event.success, false);
}
}
}
});
match sqltxn.commit() {
Ok(_) => {
transaction.success = true;
}
Err(_e) => {
assert_eq!(transaction.success, false);
// println!("COMMIT ERROR {}", _e);
}
}
}
}),
Err(_e) => {
hist.iter().for_each(|transaction| {
assert_eq!(transaction.success, false);
});
// println!("CONNECTION ERROR {}", _e);}
}
}
}
}
#[derive(Debug)]
pub struct GaleraCluster(Vec<Node>);
impl GaleraCluster {
fn new(ips: &Vec<&str>) -> Self {
GaleraCluster(GaleraCluster::node_vec(ips))
}
fn create_table(&self) -> bool {
match self.get_mysql_addr(0) {
Some(ip) => mysql::Pool::new(ip)
.and_then(|pool| {
pool.prep_exec("CREATE DATABASE IF NOT EXISTS dbcop", ()).unwrap();
pool.prep_exec("DROP TABLE IF EXISTS dbcop.variables", ()).unwrap();
pool.prep_exec(
"CREATE TABLE IF NOT EXISTS dbcop.variables (var BIGINT(64) UNSIGNED NOT NULL PRIMARY KEY, val BIGINT(64) UNSIGNED NOT NULL)", ()
).unwrap();
// conn.query("USE dbcop").unwrap();
Ok(true)
}).is_ok(),
_ => false,
}
}
fn create_variables(&self, n_variable: usize) {
if let Some(ip) = self.get_mysql_addr(0) {
if let Ok(conn) = mysql::Pool::new(ip) {
for mut stmt in conn
.prepare("INSERT INTO dbcop.variables (var, val) values (?, 0)")
.into_iter()
{
(0..n_variable).for_each(|variable| {
stmt.execute((variable,)).unwrap();
});
}
}
}
}
fn drop_database(&self) {
if let Some(ip) = self.get_mysql_addr(0) {
if let Ok(conn) = mysql::Pool::new(ip) {
conn.prep_exec("DROP DATABASE dbcop", ()).unwrap();
}
}
}
fn get_mysql_addr(&self, i: usize) -> Option<String> {
match self.0.get(i) {
Some(ref node) => Some(format!("mysql://{}@{}", "root", node.ip)),
None => None,
}
}
}
impl Cluster<GaleraNode> for GaleraCluster {
fn n_node(&self) -> usize {
self.0.len()
}
fn setup(&self) -> bool {
self.create_table()
}
fn get_node(&self, id: usize) -> Node {
self.0[id].clone()
}
fn get_cluster_node(&self, id: usize) -> GaleraNode {
From::from(self.get_node(id))
}
fn setup_test(&self, p: &TestParams) {
self.create_variables(p.n_variable);
}
fn cleanup(&self) {
self.drop_database();
}
}
fn main() {
let matches = App::new("galera")
.version("1.0")
.author("Ranadeep")
.about("verifies a galera cluster")
.arg(
Arg::with_name("n_variable")
.long("nval")
.short("v")
.default_value("5"),
).arg(
Arg::with_name("n_transaction")
.long("ntxn")
.short("t")
.default_value("5"),
).arg(
Arg::with_name("n_event")
.long("nevt")
.short("e")
.default_value("2"),
).arg(
Arg::with_name("ips")
.help("Cluster ips")
.multiple(true)
.required(true),
).get_matches();
let ips: Vec<_> = matches.values_of("ips").unwrap().collect();
let cluster = GaleraCluster::new(&ips);
// println!("{:?}", cluster);
cluster.setup();
// test_id, n_variable, n_transaction, n_event
let params = TestParams {
id: 0,
n_variable: matches.value_of("n_variable").unwrap().parse().unwrap(),
n_transaction: matches.value_of("n_transaction").unwrap().parse().unwrap(),
n_event: matches.value_of("n_event").unwrap().parse().unwrap(),
};
println!("{:?}", params);
cluster.test(&params);
}
src/algo/bench.rs deleted 100644 → 0
View file @ a0fea73d
// use self::pbr::ProgressBar;
// use algo::txn;
use db::op;
// use db::slowq;
use mysql;
use rand;
use rand::Rng;
use std::sync::{Arc, Mutex};
use std::thread;
use std::net::Ipv4Addr;
use consistency::ser::Chains;
use std::collections::{HashMap, HashSet};
#[derive(Debug, PartialEq)]
pub enum Event {
READ,
WRITE,
}
#[derive(Debug)]
pub struct Action {
ev: Event,
var: usize,
wr_node: usize,
wr_txn: usize,
wr_pos: usize,
}
pub fn do_single_node(node: DBNode, vars: &Vec<usize>, history: &mut Vec<Vec<Action>>) {
// println!("doing for {:?} with {:?}", node, vars);
let n_txn = 5;
let n_evts_per_txn = 3;
// let n_iter = 100;
match mysql::Pool::new(node.addr) {
Ok(conn) => {
let mut rng = rand::thread_rng();
for wr_txn in 0..n_txn {
let mut curr_txn = Vec::new();
for mut sqltxn in conn.start_transaction(
false,
Some(mysql::IsolationLevel::Serializable),
Some(false),
) {
for wr_pos in 0..n_evts_per_txn {
let curr_var = *rng.choose(&vars).unwrap();
if rng.gen() {
match sqltxn.prep_exec(
"UPDATE dbcop.variables SET wr_node=?, wr_txn=?, wr_pos=? WHERE id=?",
(node.id, history.len(), curr_txn.len(), curr_var),
) {
Err(_e) => {
println!("WRITE ERR {} {} {} {}-- {:?}", curr_var, node.id, wr_txn, wr_pos, _e);
}
_ => {
let act = Action {
ev: Event::WRITE,
var: curr_var,
wr_node: node.id,
wr_txn: history.len(),
wr_pos: curr_txn.len(),
};
curr_txn.push(act);
}
}
} else {
match sqltxn
.prep_exec("SELECT * FROM dbcop.variables WHERE id=?", (curr_var,))
.and_then(|mut rows| {
let mut row = rows.next().unwrap().unwrap();
// assert_eq!(e.var.id, row.take::<u64, &str>("id").unwrap());
let _id = row.take("id").unwrap();
let _wr_node = row.take("wr_node").unwrap();
let _wr_txn = row.take("wr_txn").unwrap();
let _wr_pos = row.take("wr_pos").unwrap();
let act = Action {
ev: Event::READ,
var: _id,
wr_node: _wr_node,
wr_txn: _wr_txn,
wr_pos: _wr_pos,
};
curr_txn.push(act);
Ok(())
}) {
Err(_e) => {
// println!("READ ERR -- {:?}", _e);
}
_ => {}
}
}
}
match sqltxn.commit() {
Err(_e) => {
// println!("COMMIT ERROR {}", _e);
// println!("{:?}", curr_txn);
curr_txn.clear();
}
_ => {}
}
// sqltxn.rollback().unwrap();
}
history.push(curr_txn);
}
}
Err(e) => {
println!("{}", e);
}
}
}
#[derive(Clone, Debug)]
pub struct DBNode {
addr: String,
id: usize,
}
pub fn single_bench(nodes: &Vec<DBNode>, vars: &Vec<usize>) {
loop {
match mysql::Pool::new(nodes[0].addr.clone()) {
Ok(_conn) => match _conn.get_conn() {
Ok(mut conn) => {
op::create_vars(vars, &mut conn);
break;
}
Err(e) => {
println!("{}", e);
}
},
Err(e) => {
println!("{}", e);
}
}
}
let mut threads = Vec::with_capacity(nodes.len());
let mut session_histories = Vec::with_capacity(nodes.len());
for i in 0..nodes.len() {
session_histories.push(Arc::new(Mutex::new(Vec::new())));
let history = session_histories[i].clone();
let node_addr = nodes[i].clone();
let vars = vars.clone();
threads.push(thread::spawn(move || {
let mut history = history.lock().unwrap();
do_single_node(node_addr, &vars, &mut (*history));
}));
}
for t in threads {
t.join()
.expect("thread failed to doing bench at a single node");
}
let mut histories = Vec::with_capacity(nodes.len());
for hist in session_histories {
histories.push(Arc::try_unwrap(hist).unwrap().into_inner().unwrap());
}
for (node_id, sess) in histories.iter().enumerate() {
println!("node {}", node_id + 1);
for txn in sess.iter() {
println!("{:?}", txn)
}
println!("");
}
for sess in histories.iter() {
for txn in sess.iter() {
for act in txn.iter() {
if act.ev == Event::READ {
if act.wr_node == 0 {
assert_eq!(act.wr_txn, 0);
assert_eq!(act.wr_pos, 0);
} else {
// println!("{:?}", act);
let w_act = &histories[act.wr_node - 1][act.wr_txn][act.wr_pos];
assert_eq!(act.var, w_act.var);
assert_eq!(w_act.ev, Event::WRITE);
}
}
}
}
}
// add code for serialization check
let mut txn_last_writes = HashMap::new();
for (node_id, sess) in histories.iter().enumerate() {
for (txn_id, txn) in sess.iter().enumerate() {
let mut last_writes = HashMap::new();
for act in txn.iter() {
if act.ev == Event::WRITE {
last_writes.insert(act.var, act.wr_pos);
}
}
txn_last_writes.insert((node_id + 1, txn_id), last_writes);
}
}
// checking for non-committed read, non-repeatable read
for (node_id, sess) in histories.iter().enumerate() {
for (txn_id, txn) in sess.iter().enumerate() {
let mut writes = HashMap::new();
let mut reads: HashMap<usize, (usize, usize, usize)> = HashMap::new();
for (act_id, act) in txn.iter().enumerate() {
match act.ev {
Event::WRITE => {
writes.insert(act.var, act.wr_pos);
reads.remove(&act.var);
}
Event::READ => {
if let Some(pos) = writes.get(&act.var) {
assert_eq!(txn_id, act.wr_txn, "update-lost!! action-{} of txn({},{}) read value from ({},{},{}) instead from the txn.", act_id, node_id + 1, txn_id, act.wr_node, act.wr_txn, act.wr_pos);
assert_eq!(node_id + 1, act.wr_node, "update-lost!! action-{} of txn({},{}) read value from ({},{},{}) instead from the txn.", act_id, node_id + 1, txn_id, act.wr_node, act.wr_txn, act.wr_pos);
assert_eq!(*pos, act.wr_pos, "update-lost!! action-{} of txn({},{}) read value from ({},{},{}) instead from the txn.", act_id, node_id + 1, txn_id, act.wr_node, act.wr_txn, act.wr_pos);
} else {
if act.wr_node != 0 {
assert_eq!(
*txn_last_writes
.get(&(act.wr_node, act.wr_txn))
.unwrap()
.get(&act.var)
.unwrap(),
act.wr_pos,
"non-committed read!! action-{} of txn({},{}) read value from ({},{},{}) instead from the txn.", act_id, node_id + 1, txn_id, act.wr_node, act.wr_txn, act.wr_pos
);
}
if let Some((wr_node, wr_txn, wr_pos)) = reads.get(&act.var) {
assert_eq!(*wr_node, act.wr_node, "non-repeatable read!! action-{} of txn({},{}) read value from ({},{},{}) instead as the last read.", act_id, node_id + 1, txn_id, act.wr_node, act.wr_txn, act.wr_pos);
assert_eq!(*wr_txn, act.wr_txn, "non-repeatable read!! action-{} of txn({},{}) read value from ({},{},{}) instead as the last read.", act_id, node_id + 1, txn_id, act.wr_node, act.wr_txn, act.wr_pos);
assert_eq!(*wr_pos, act.wr_pos, "non-repeatable read!! action-{} of txn({},{}) read value from ({},{},{}) instead as the last read.", act_id, node_id + 1, txn_id, act.wr_node, act.wr_txn, act.wr_pos);
}
}
reads.insert(act.var, (act.wr_node, act.wr_txn, act.wr_pos));
}
}
}
}
}
let n_sizes = histories.iter().map(|ref v| v.len()).collect();
let mut txn_infos = HashMap::new();
for (node_id, sess) in histories.iter().enumerate() {
for (txn_id, txn) in sess.iter().enumerate() {
let mut rd_info = HashMap::new();
let mut wr_info = HashSet::new();
for act in txn.iter() {
match act.ev {
Event::READ => {
if act.wr_node != node_id + 1 || act.wr_txn != txn_id {
if let Some((old_node, old_txn)) =
rd_info.insert(act.var, (act.wr_node, act.wr_txn))
{
assert_eq!(old_node, act.wr_node);
assert_eq!(old_txn, act.wr_txn);
}
}
}
Event::WRITE => {
wr_info.insert(act.var);
}
}
}
txn_infos.insert((node_id + 1, txn_id), (rd_info, wr_info));
}
}
let mut chains = Chains::new(&n_sizes, &txn_infos);
if !chains.preprocess() {
println!("found cycle while processing wr and po order");
}
println!("{:?}", chains);
println!("{:?}", chains.serializable_order_dfs());
}
pub fn do_bench() {
let n_vars = 5;
let n_nodes = 6;
// let n_txn = 6;
// let n_evts_per_txn = 4;
// let n_iter = 100;
let nodes = {
let mut nodes = Vec::with_capacity(n_nodes);
for i in 1usize..(n_nodes + 1) {
nodes.push(DBNode {
addr: format!(
"mysql://{}@{}",
"root",
Ipv4Addr::new(172, 18, 0, 10 + (i as u8))
),
id: i,
});
}
nodes
};
{
let mut conn = mysql::Pool::new(nodes[0].addr.clone())
.unwrap()
.get_conn()
.unwrap();
op::create_table(&mut conn);
}
// for node in nodes.iter() {
// let mut conn = mysql::Pool::new(node.addr.clone())
// .unwrap()
// .get_conn()
// .unwrap();
// conn.query(format!("SET GLOBAL max_connections = 100000000"))
// .unwrap();
// }
// return;
let mut threads = Vec::new();
for i in 0..1 {
let nodes = nodes.clone();
threads.push(thread::spawn(move || {
single_bench(&nodes, &((i * n_vars)..((i + 1) * n_vars)).collect());
}));
}
for t in threads {
t.join().expect("failed to single bench");
}
}
src/consistency/ser.rs
View file @ c6cac819
use std::collections::{HashMap, HashSet};
#[derive(Debug)]
#[derive(Debug, Clone)]
struct EdgeClosure {
forward_edge: HashMap<usize, HashSet<usize>>,
backward_edge: HashMap<usize, HashSet<usize>>,
......@@ -17,10 +17,12 @@ impl EdgeClosure {
pub fn contains(&self, u: usize, v: usize) -> bool {
self.forward_edge
.get(&u)
.and_then(|vs| Some(vs.contains(&v))) == Some(true)
.and_then(|vs| Some(vs.contains(&v)))
== Some(true)
}
pub fn add_edge(&mut self, u: usize, v: usize) -> bool {
// returns true if new edge added
if !self.contains(u, v) {
let mut new_edge = Vec::new();
{
......@@ -70,7 +72,7 @@ impl EdgeClosure {
pub struct Chains {
n_sizes: Vec<usize>,
root_txn_id: usize,
txns: Vec<Option<(HashMap<usize, usize>, HashSet<usize>)>>,
txns: Vec<(HashMap<usize, usize>, HashSet<usize>)>,
tuple_to_id: Vec<Vec<usize>>,
id_to_tuple: Vec<(usize, usize)>,
......@@ -98,27 +100,33 @@ impl Chains {
id_to_tuple.push((node_id + 1, node_ix));
}
}
let mut txns = vec![None; n_sizes.iter().sum::<usize>() + 1];
let mut root_writes = HashSet::new();
let mut txns = vec![(HashMap::new(), HashSet::new()); n_sizes.iter().sum::<usize>() + 1];