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tikv-server.rs
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tikv-server.rs
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// Copyright 2016 PingCAP, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// See the License for the specific language governing permissions and
// limitations under the License.
#![feature(slice_patterns)]
#![feature(proc_macro_hygiene)]
#[cfg(unix)]
extern crate nix;
extern crate rocksdb;
extern crate serde_json;
#[cfg(unix)]
extern crate signal;
#[macro_use(
kv,
slog_kv,
slog_error,
slog_warn,
slog_info,
slog_log,
slog_record,
slog_b,
slog_record_static
)]
extern crate slog;
extern crate slog_async;
#[macro_use]
extern crate slog_global;
#[cfg(unix)]
#[macro_use]
mod util;
use crate::util::setup::*;
use crate::util::signal_handler;
use std::fs::File;
use std::path::Path;
use std::process;
use std::sync::atomic::Ordering;
use std::sync::Arc;
use std::time::Duration;
use std::usize;
use clap::{crate_authors, crate_version, App, Arg};
use fs2::FileExt;
use tikv::config::{check_and_persist_critical_config, TiKvConfig};
use tikv::coprocessor;
use tikv::import::{ImportSSTService, SSTImporter};
use tikv::pd::{PdClient, RpcClient};
use tikv::raftstore::coprocessor::{CoprocessorHost, RegionInfoAccessor};
use tikv::raftstore::store::fsm;
use tikv::raftstore::store::{new_compaction_listener, Engines, SnapManagerBuilder};
use tikv::server::readpool::ReadPool;
use tikv::server::resolve;
use tikv::server::status_server::StatusServer;
use tikv::server::transport::ServerRaftStoreRouter;
use tikv::server::{create_raft_storage, Node, Server, DEFAULT_CLUSTER_ID};
use tikv::storage::{self, AutoGCConfig, DEFAULT_ROCKSDB_SUB_DIR};
use tikv::util::rocksdb_util::metrics_flusher::{MetricsFlusher, DEFAULT_FLUSHER_INTERVAL};
use tikv::util::security::{self, SecurityManager};
use tikv::util::time::Monitor;
use tikv::util::worker::{Builder, FutureWorker};
use tikv::util::{self as tikv_util, check_environment_variables, rocksdb_util};
const RESERVED_OPEN_FDS: u64 = 1000;
fn check_system_config(config: &TiKvConfig) {
if let Err(e) = tikv_util::config::check_max_open_fds(
RESERVED_OPEN_FDS + (config.rocksdb.max_open_files + config.raftdb.max_open_files) as u64,
) {
fatal!("{}", e);
}
for e in tikv_util::config::check_kernel() {
warn!(
"check-kernel";
"err" => %e
);
}
// Check RocksDB data dir
if let Err(e) = tikv_util::config::check_data_dir(&config.storage.data_dir) {
warn!(
"rocksdb check data dir";
"err" => %e
);
}
// Check raft data dir
if let Err(e) = tikv_util::config::check_data_dir(&config.raft_store.raftdb_path) {
warn!(
"raft check data dir";
"err" => %e
);
}
}
fn pre_start(cfg: &TiKvConfig) {
// Before any startup, check system configuration and environment variables.
check_system_config(&cfg);
check_environment_variables();
if cfg.panic_when_unexpected_key_or_data {
info!("panic-when-unexpected-key-or-data is on");
tikv_util::set_panic_when_unexpected_key_or_data(true);
}
}
fn run_raft_server(pd_client: RpcClient, cfg: &TiKvConfig, security_mgr: Arc<SecurityManager>) {
let store_path = Path::new(&cfg.storage.data_dir);
let lock_path = store_path.join(Path::new("LOCK"));
let db_path = store_path.join(Path::new(DEFAULT_ROCKSDB_SUB_DIR));
let snap_path = store_path.join(Path::new("snap"));
let raft_db_path = Path::new(&cfg.raft_store.raftdb_path);
let import_path = store_path.join("import");
let f = File::create(lock_path.as_path())
.unwrap_or_else(|e| fatal!("failed to create lock at {}: {}", lock_path.display(), e));
if f.try_lock_exclusive().is_err() {
fatal!(
"lock {} failed, maybe another instance is using this directory.",
store_path.display()
);
}
if tikv_util::panic_mark_file_exists(&cfg.storage.data_dir) {
fatal!(
"panic_mark_file {} exists, there must be something wrong with the db.",
tikv_util::panic_mark_file_path(&cfg.storage.data_dir).display()
);
}
// Initialize raftstore channels.
let (router, system) = fsm::create_raft_batch_system(&cfg.raft_store);
// Create Local Reader.
let local_reader = Builder::new("local-reader")
.batch_size(cfg.raft_store.local_read_batch_size as usize)
.create();
let local_ch = local_reader.scheduler();
// Create router.
let raft_router = ServerRaftStoreRouter::new(router.clone(), local_ch);
let compaction_listener = new_compaction_listener(router.clone());
// Create pd client and pd worker
let pd_client = Arc::new(pd_client);
let pd_worker = FutureWorker::new("pd-worker");
let (mut worker, resolver) = resolve::new_resolver(Arc::clone(&pd_client))
.unwrap_or_else(|e| fatal!("failed to start address resolver: {}", e));
let pd_sender = pd_worker.scheduler();
// Create encrypted env from cipher file
let encrypted_env = if !cfg.security.cipher_file.is_empty() {
match security::encrypted_env_from_cipher_file(&cfg.security.cipher_file, None) {
Err(e) => fatal!(
"failed to create encrypted env from cipher file, err {:?}",
e
),
Ok(env) => Some(env),
}
} else {
None
};
// Create kv engine, storage.
let mut kv_db_opts = cfg.rocksdb.build_opt();
kv_db_opts.add_event_listener(compaction_listener);
if encrypted_env.is_some() {
kv_db_opts.set_env(encrypted_env.as_ref().unwrap().clone());
}
let kv_cfs_opts = cfg.rocksdb.build_cf_opts();
let kv_engine = Arc::new(
rocksdb_util::new_engine_opt(db_path.to_str().unwrap(), kv_db_opts, kv_cfs_opts)
.unwrap_or_else(|s| fatal!("failed to create kv engine: {}", s)),
);
let storage_read_pool =
ReadPool::new("store-read", &cfg.readpool.storage.build_config(), || {
storage::ReadPoolContext::new(pd_sender.clone())
});
let storage = create_raft_storage(
raft_router.clone(),
&cfg.storage,
storage_read_pool,
Some(Arc::clone(&kv_engine)),
Some(raft_router.clone()),
)
.unwrap_or_else(|e| fatal!("failed to create raft storage: {}", e));
// Create raft engine.
let mut raft_db_opts = cfg.raftdb.build_opt();
if encrypted_env.is_some() {
raft_db_opts.set_env(encrypted_env.unwrap());
}
let raft_db_cf_opts = cfg.raftdb.build_cf_opts();
let raft_engine = Arc::new(
rocksdb_util::new_engine_opt(
raft_db_path.to_str().unwrap(),
raft_db_opts,
raft_db_cf_opts,
)
.unwrap_or_else(|s| fatal!("failed to create raft engine: {}", s)),
);
let engines = Engines::new(Arc::clone(&kv_engine), Arc::clone(&raft_engine));
// Create snapshot manager, server.
let snap_mgr = SnapManagerBuilder::default()
.max_write_bytes_per_sec(cfg.server.snap_max_write_bytes_per_sec.0)
.max_total_size(cfg.server.snap_max_total_size.0)
.build(
snap_path.as_path().to_str().unwrap().to_owned(),
Some(router.clone()),
);
let importer = Arc::new(SSTImporter::new(import_path).unwrap());
let import_service = ImportSSTService::new(
cfg.import.clone(),
raft_router.clone(),
Arc::clone(&kv_engine),
Arc::clone(&importer),
);
let server_cfg = Arc::new(cfg.server.clone());
// Create server
let cop_read_pool = ReadPool::new("cop", &cfg.readpool.coprocessor.build_config(), || {
coprocessor::ReadPoolContext::new(pd_sender.clone())
});
let cop = coprocessor::Endpoint::new(&server_cfg, storage.get_engine(), cop_read_pool);
let mut server = Server::new(
&server_cfg,
&security_mgr,
storage.clone(),
cop,
raft_router,
resolver,
snap_mgr.clone(),
Some(engines.clone()),
Some(import_service),
)
.unwrap_or_else(|e| fatal!("failed to create server: {}", e));
let trans = server.transport();
// Create node.
let mut node = Node::new(system, &server_cfg, &cfg.raft_store, pd_client.clone());
// Create CoprocessorHost.
let mut coprocessor_host = CoprocessorHost::new(cfg.coprocessor.clone(), router);
// Create region collection.
let region_info_accessor = RegionInfoAccessor::new(&mut coprocessor_host);
region_info_accessor.start();
node.start(
engines.clone(),
trans,
snap_mgr,
pd_worker,
local_reader,
coprocessor_host,
importer,
)
.unwrap_or_else(|e| fatal!("failed to start node: {}", e));
initial_metric(&cfg.metric, Some(node.id()));
// Start auto gc
let auto_gc_cfg = AutoGCConfig::new(pd_client, region_info_accessor.clone(), node.id());
if let Err(e) = storage.start_auto_gc(auto_gc_cfg) {
fatal!("failed to start auto_gc on storage, error: {}", e);
}
let mut metrics_flusher = MetricsFlusher::new(
engines.clone(),
Duration::from_millis(DEFAULT_FLUSHER_INTERVAL),
);
// Start metrics flusher
if let Err(e) = metrics_flusher.start() {
error!(
"failed to start metrics flusher";
"err" => %e
);
}
// Run server.
server
.start(server_cfg, security_mgr)
.unwrap_or_else(|e| fatal!("failed to start server: {}", e));
let server_cfg = cfg.server.clone();
let mut status_enabled = cfg.metric.address.is_empty() && !server_cfg.status_addr.is_empty();
// Create a status server.
let mut status_server = StatusServer::new(server_cfg.status_thread_pool_size);
if status_enabled {
// Start the status server.
if let Err(e) = status_server.start(server_cfg.status_addr) {
error!(
"failed to bind addr for status service";
"err" => %e
);
status_enabled = false;
}
}
signal_handler::handle_signal(Some(engines));
// Stop.
server
.stop()
.unwrap_or_else(|e| fatal!("failed to stop server: {}", e));
if status_enabled {
// Stop the status server.
status_server.stop()
}
metrics_flusher.stop();
node.stop()
.unwrap_or_else(|e| fatal!("failed to stop node: {}", e));
region_info_accessor.stop();
if let Some(Err(e)) = worker.stop().map(|j| j.join()) {
info!(
"ignore failure when stopping resolver";
"err" => ?e
);
}
}
fn main() {
let matches = App::new("TiKV")
.about("A distributed transactional key-value database powered by Rust and Raft")
.author(crate_authors!())
.version(crate_version!())
.long_version(util::tikv_version_info().as_ref())
.arg(
Arg::with_name("config")
.short("C")
.long("config")
.value_name("FILE")
.help("Set the configuration file")
.takes_value(true),
)
.arg(
Arg::with_name("log-level")
.short("L")
.long("log-level")
.alias("log")
.takes_value(true)
.value_name("LEVEL")
.possible_values(&[
"trace", "debug", "info", "warn", "warning", "error", "critical",
])
.help("Set the log level"),
)
.arg(
Arg::with_name("log-file")
.short("f")
.long("log-file")
.takes_value(true)
.value_name("FILE")
.help("Sets log file")
.long_help("Set the log file path. If not set, logs will output to stderr"),
)
.arg(
Arg::with_name("addr")
.short("A")
.long("addr")
.takes_value(true)
.value_name("IP:PORT")
.help("Set the listening address"),
)
.arg(
Arg::with_name("advertise-addr")
.long("advertise-addr")
.takes_value(true)
.value_name("IP:PORT")
.help("Set the advertise listening address for client communication"),
)
.arg(
Arg::with_name("status-addr")
.long("status-addr")
.takes_value(true)
.value_name("IP:PORT")
.help("Set the HTTP listening address for the status report service"),
)
.arg(
Arg::with_name("data-dir")
.long("data-dir")
.short("s")
.alias("store")
.takes_value(true)
.value_name("PATH")
.help("Set the directory used to store data"),
)
.arg(
Arg::with_name("capacity")
.long("capacity")
.takes_value(true)
.value_name("CAPACITY")
.help("Set the store capacity")
.long_help("Set the store capacity to use. If not set, use entire partition"),
)
.arg(
Arg::with_name("pd-endpoints")
.long("pd-endpoints")
.aliases(&["pd", "pd-endpoint"])
.takes_value(true)
.value_name("PD_URL")
.multiple(true)
.use_delimiter(true)
.require_delimiter(true)
.value_delimiter(",")
.help("Sets PD endpoints")
.long_help("Set the PD endpoints to use. Use `,` to separate multiple PDs"),
)
.arg(
Arg::with_name("labels")
.long("labels")
.alias("label")
.takes_value(true)
.value_name("KEY=VALUE")
.multiple(true)
.use_delimiter(true)
.require_delimiter(true)
.value_delimiter(",")
.help("Sets server labels")
.long_help(
"Set the server labels. Uses `,` to separate kv pairs, like \
`zone=cn,disk=ssd`",
),
)
.arg(
Arg::with_name("print-sample-config")
.long("print-sample-config")
.help("Print a sample config to stdout"),
)
.arg(
Arg::with_name("metrics-addr")
.long("metrics-addr")
.value_name("IP:PORT")
.help("Sets Prometheus Pushgateway address")
.long_help(
"Sets push address to the Prometheus Pushgateway, \
leaves it empty will disable Prometheus push",
),
)
.get_matches();
if matches.is_present("print-sample-config") {
let config = TiKvConfig::default();
println!("{}", toml::to_string_pretty(&config).unwrap());
process::exit(0);
}
let mut config = matches
.value_of("config")
.map_or_else(TiKvConfig::default, |path| TiKvConfig::from_file(&path));
overwrite_config_with_cmd_args(&mut config, &matches);
if let Err(e) = check_and_persist_critical_config(&config) {
fatal!("critical config check failed: {}", e);
}
// Sets the global logger ASAP.
// It is okay to use the config w/o `validate()`,
// because `initial_logger()` handles various conditions.
initial_logger(&config);
tikv_util::set_panic_hook(false, &config.storage.data_dir);
// Print version information.
util::log_tikv_info();
config.compatible_adjust();
if let Err(e) = config.validate() {
fatal!("invalid configuration: {}", e.description());
}
info!(
"using config";
"config" => serde_json::to_string(&config).unwrap(),
);
config.write_into_metrics();
// Do some prepare works before start.
pre_start(&config);
let security_mgr = Arc::new(
SecurityManager::new(&config.security)
.unwrap_or_else(|e| fatal!("failed to create security manager: {}", e.description())),
);
let pd_client = RpcClient::new(&config.pd, Arc::clone(&security_mgr))
.unwrap_or_else(|e| fatal!("failed to create rpc client: {}", e));
let cluster_id = pd_client
.get_cluster_id()
.unwrap_or_else(|e| fatal!("failed to get cluster id: {}", e));
if cluster_id == DEFAULT_CLUSTER_ID {
fatal!("cluster id can't be {}", DEFAULT_CLUSTER_ID);
}
config.server.cluster_id = cluster_id;
info!(
"connect to PD cluster";
"cluster_id" => cluster_id
);
let _m = Monitor::default();
run_raft_server(pd_client, &config, security_mgr);
}