anthrove/fuzzysearch
4
0
Fork 0
mirror of https://github.com/Syfaro/fuzzysearch.git synced 2024-11-23 15:22:31 +00:00
Code Issues Packages Projects Releases Wiki Activity

Keep database updated.

Browse Source
This commit is contained in:
Syfaro 2021-02-16 23:43:33 -05:00
parent 0453a84511
commit d557d9bbae
11 changed files with 1061 additions and 616 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
.dockerignore Normal file
View File

@ -0,0 +1 @@
target/

25
.drone.yml Normal file
View File

@ -0,0 +1,25 @@
---
kind: pipeline
type: docker
name: default
platform:
os: linux
arch: amd64
steps:
- name: build-latest
image: plugins/docker
settings:
auto_tag: true
password:
from_secret: docker_password
registry: registry.huefox.com
repo: registry.huefox.com/e621-watcher
username:
from_secret: docker_username
when:
branch:
- master
...

1
.gitignore vendored
View File

@ -1 +1,2 @@
/target /target
.env

762
Cargo.lock generated
View File

File diff suppressed because it is too large Load Diff

21
Cargo.toml
View File

@ -5,20 +5,25 @@ authors = ["Syfaro <syfaro@huefox.com>"]
edition = "2018" edition = "2018"
[dependencies] [dependencies]
reqwest = { version = "0.11", features = ["json"] }
tokio = { version = "1", features = ["full"] } tokio = { version = "1", features = ["full"] }
futures = { version = "0.3", features = ["thread-pool"] }
hamming = "0.1.3" hyper = { version = "0.14", features = ["server"] }
reqwest = { version = "0.11", features = ["json"] }
serde = "1" serde = "1"
serde_json = "1" serde_json = "1"
tokio-postgres = { version = "0.7", features = ["with-serde_json-1"] } sqlx = { version = "0.5", features = ["runtime-tokio-native-tls", "postgres", "macros", "json", "offline"] }
bb8 = "0.7"
bb8-postgres = "0.7"
image = "0.23" image = "0.23"
hamming = "0.1.3"
img_hash = "3" img_hash = "3"
sha2 = "0.9"
[profile.dev.package."*"] tracing = "0.1"
opt-level = 2 tracing-subscriber = "0.2"
anyhow = "1"
lazy_static = "1"
prometheus = { version = "0.11", features = ["process"] }

14
Dockerfile Normal file
View File

@ -0,0 +1,14 @@
FROM rust:1-slim AS builder
WORKDIR /src
ENV SQLX_OFFLINE=true
RUN apt-get update -y && apt-get install -y libssl-dev pkg-config
COPY . .
RUN cargo install --root / --path .
FROM debian:buster-slim
EXPOSE 8080
ENV METRICS_HOST=0.0.0.0:8080
WORKDIR /app
RUN apt-get update -y && apt-get install -y openssl ca-certificates && rm -rf /var/lib/apt/lists/*
COPY --from=builder /bin/e621-watcher /bin/e621-watcher
CMD ["/bin/e621-watcher"]

37
sqlx-data.json Normal file
View File

@ -0,0 +1,37 @@
{
"db": "PostgreSQL",
"02b98e35cf7d650413c2730df732d7ae08119b11a5b2aaddcee08a7f06338924": {
"query": "SELECT max(id) max FROM e621",
"describe": {
"columns": [
{
"ordinal": 0,
"name": "max",
"type_info": "Int4"
}
],
"parameters": {
"Left": []
},
"nullable": [
null
]
}
},
"a054594f7844f32e5968a54c0dab59716149a10411fcb16184a9070a82bb287d": {
"query": "INSERT INTO e621\n (id, data, hash, hash_error, sha256) VALUES\n ($1, $2, $3, $4, $5)\n ON CONFLICT (id) DO UPDATE SET\n data = EXCLUDED.data,\n hash = EXCLUDED.hash,\n hash_error = EXCLUDED.hash_error,\n sha256 = EXCLUDED.sha256",
"describe": {
"columns": [],
"parameters": {
"Left": [
"Int4",
"Jsonb",
"Int8",
"Text",
"Bytea"
]
},
"nullable": []
}
}
}

130
src/bin/import.rs
View File

@ -1,130 +0,0 @@
async fn load_page(
client: &reqwest::Client,
before_id: Option<i32>,
) -> (Vec<i32>, serde_json::Value) {
println!("Loading page with before_id {:?}", before_id);
let mut query: Vec<(&'static str, String)> = vec![("limit", "320".into())];
if let Some(before_id) = before_id {
query.push(("page", format!("b{}", before_id)));
if before_id <= 14 {
panic!("that's it.");
}
}
let body = client
.get("https://e621.net/posts.json")
.query(&query)
.send()
.await
.expect("unable to make request")
.text()
.await
.expect("unable to convert to text");
let json = serde_json::from_str(&body).expect("Unable to parse data");
let page = match json {
serde_json::Value::Object(ref obj) => obj,
_ => panic!("top level value was not object"),
};
let posts = page
.get("posts")
.expect("unable to get posts object")
.as_array()
.expect("posts was not array");
let ids = posts
.iter()
.map(|post| {
let post = match post {
serde_json::Value::Object(post) => post,
_ => panic!("invalid post data"),
};
match post.get("id").expect("missing post id") {
serde_json::Value::Number(num) => {
num.as_i64().expect("invalid post id type") as i32
}
_ => panic!("invalid post id"),
}
})
.collect();
(ids, serde_json::Value::Array(posts.to_vec()))
}
#[tokio::main]
async fn main() {
let dsn = std::env::var("POSTGRES_DSN").expect("missing postgres dsn");
let (db, connection) = tokio_postgres::connect(&dsn, tokio_postgres::NoTls)
.await
.expect("Unable to connect");
tokio::spawn(async move {
if let Err(e) = connection.await {
eprintln!("connection error: {}", e);
}
});
db.execute(
"CREATE TABLE IF NOT EXISTS e621 (id INTEGER PRIMARY KEY, hash BIGINT, data JSONB, hash_error TEXT)",
&[],
)
.await
.expect("Unable to create table");
db.execute(
"CREATE OR REPLACE FUNCTION extract_post_data() RETURNS TRIGGER AS $$
BEGIN
NEW.id = NEW.data->'id';
RETURN NEW;
END $$
LANGUAGE 'plpgsql'",
&[],
)
.await
.expect("Unable to create function");
db.execute("DROP TRIGGER IF EXISTS call_extract_post_data ON e621", &[])
.await
.expect("Unable to drop trigger");
db.execute("CREATE TRIGGER call_extract_post_data BEFORE INSERT ON e621 FOR EACH ROW EXECUTE PROCEDURE extract_post_data()", &[]).await.expect("Unable to create trigger");
let mut min_id = db
.query_one("SELECT MIN(id) FROM e621", &[])
.await
.map(|row| row.get("min"))
.expect("Unable to get min post");
let client = reqwest::Client::builder()
.user_agent("Syfaro test client syfaro@huefox.com")
.build()
.expect("Unable to build http client");
let mut now;
loop {
now = std::time::Instant::now();
let (ids, post_data) = load_page(&client, min_id).await;
min_id = ids.into_iter().min();
db.execute(
"INSERT INTO e621 (data) SELECT json_array_elements($1::json)",
&[&post_data],
)
.await
.expect("Unable to insert");
let elapsed = now.elapsed().as_millis() as u64;
if elapsed < 1000 {
let delay = 1000 - elapsed;
println!("delaying {}ms before loading next page", delay);
tokio::time::sleep(std::time::Duration::from_millis(delay)).await;
}
}
}

161
src/bin/load_hashes.rs
View File

@ -1,161 +0,0 @@
use bb8::Pool;
use bb8_postgres::PostgresConnectionManager;
use futures::StreamExt;
struct NeededPost {
id: i32,
full_url: String,
}
fn get_hasher() -> img_hash::Hasher<[u8; 8]> {
img_hash::HasherConfig::with_bytes_type::<[u8; 8]>()
.hash_alg(img_hash::HashAlg::Gradient)
.hash_size(8, 8)
.preproc_dct()
.to_hasher()
}
async fn hash_url(
id: i32,
client: std::sync::Arc<reqwest::Client>,
url: String,
) -> (i32, Result<i64, image::ImageError>) {
let data = client
.get(&url)
.send()
.await
.expect("unable to get url")
.bytes()
.await
.expect("unable to get bytes");
let hasher = get_hasher();
let image = match image::load_from_memory(&data) {
Ok(image) => image,
Err(e) => {
println!("{:?}", &data[0..50]);
return (id, Err(e));
}
};
let hash = hasher.hash_image(&image);
let mut bytes: [u8; 8] = [0; 8];
bytes.copy_from_slice(hash.as_bytes());
let num = i64::from_be_bytes(bytes);
println!("{} - {}", url, num);
(id, Ok(num))
}
async fn load_next_posts(
db: Pool<PostgresConnectionManager<tokio_postgres::NoTls>>,
) -> Vec<NeededPost> {
db.get()
.await
.unwrap()
.query(
"SELECT
id,
data->'file'->>'url' file_url
FROM
e621
WHERE
hash IS NULL AND
hash_error IS NULL AND
data->'file'->>'ext' IN ('jpg', 'png') AND
data->'file'->>'url' <> '/images/deleted-preview.png'
ORDER BY id DESC
LIMIT 384",
&[],
)
.await
.expect("Unable to get posts")
.into_iter()
.map(|row| NeededPost {
id: row.get("id"),
full_url: row.get("file_url"),
})
.collect()
}
#[tokio::main]
async fn main() {
let dsn = std::env::var("POSTGRES_DSN").expect("missing postgres dsn");
use std::str::FromStr;
let manager = PostgresConnectionManager::new(
tokio_postgres::Config::from_str(&dsn).expect("unable to parse postgres dsn"),
tokio_postgres::NoTls,
);
let pool = Pool::builder()
.build(manager)
.await
.expect("unable to build pool");
let client = reqwest::Client::builder()
.user_agent("Syfaro test client syfaro@huefox.com")
.build()
.expect("Unable to build http client");
let client = std::sync::Arc::new(client);
loop {
println!("running loop");
let needed_posts = load_next_posts(pool.clone()).await;
if needed_posts.is_empty() {
println!("no posts, waiting a minute");
tokio::time::sleep(std::time::Duration::from_secs(60)).await;
continue;
}
futures::stream::iter(
needed_posts
.into_iter()
.map(|post| hash_url(post.id, client.clone(), post.full_url)),
)
.buffer_unordered(8)
.for_each(|res: (i32, Result<i64, image::ImageError>)| async {
let db = pool.get().await.expect("unable to get from pool");
match res {
(id, Ok(num)) => {
let mut conn = pool.get().await.unwrap();
let tx = conn
.transaction()
.await
.expect("Unable to create transaction");
tx.execute("UPDATE e621 SET hash = $2 WHERE id = $1", &[&id, &num])
.await
.expect("Unable to update hash in database");
tx.execute(
"INSERT INTO hashes (e621_id, hash) VALUES ($1, $2)",
&[&id, &num],
)
.await
.expect("Unable to insert hash to hashes table");
tx.commit().await.expect("Unable to commit tx");
}
(id, Err(e)) => {
let desc = e.to_string();
println!("[{}] hashing error - {}", id, desc);
db.execute(
"UPDATE e621 SET hash_error = $2 WHERE id = $1",
&[&id, &desc],
)
.await
.expect("Unable to update hash error in database");
}
}
()
})
.await;
}
}

171
src/bin/update.rs
View File

@ -1,171 +0,0 @@
async fn load_page(client: &reqwest::Client, after_id: i32) -> (Vec<i32>, Vec<serde_json::Value>) {
println!("Loading page with after_id {:?}", after_id);
let mut query: Vec<(&'static str, String)> = vec![("limit", "320".into())];
query.push(("page", format!("a{}", after_id)));
let body = client
.get("https://e621.net/posts.json")
.query(&query)
.send()
.await
.expect("unable to make request")
.text()
.await
.expect("unable to convert to text");
let json = serde_json::from_str(&body).expect("Unable to parse data");
let page = match json {
serde_json::Value::Object(ref obj) => obj,
_ => panic!("top level value was not object"),
};
let posts = page
.get("posts")
.expect("unable to get posts object")
.as_array()
.expect("posts was not array");
let ids = posts
.iter()
.map(|post| {
let post = match post {
serde_json::Value::Object(post) => post,
_ => panic!("invalid post data"),
};
match post.get("id").expect("missing post id") {
serde_json::Value::Number(num) => {
num.as_i64().expect("invalid post id type") as i32
}
_ => panic!("invalid post id"),
}
})
.collect();
(ids, posts.to_vec())
}
async fn get_latest_id(client: &reqwest::Client) -> i32 {
println!("Looking up current highest ID");
let query = vec![("limit", "1")];
let body = client
.get("https://e621.net/posts.json")
.query(&query)
.send()
.await
.expect("unable to make request")
.text()
.await
.expect("unable to convert to text");
let json = serde_json::from_str(&body).expect("Unable to parse data");
let page = match json {
serde_json::Value::Object(ref obj) => obj,
_ => panic!("top level value was not object"),
};
let posts = page
.get("posts")
.expect("unable to get posts object")
.as_array()
.expect("posts was not array");
let ids: Vec<i32> = posts
.iter()
.map(|post| {
let post = match post {
serde_json::Value::Object(post) => post,
_ => panic!("invalid post data"),
};
match post.get("id").expect("missing post id") {
serde_json::Value::Number(num) => {
num.as_i64().expect("invalid post id type") as i32
}
_ => panic!("invalid post id"),
}
})
.collect();
ids.into_iter().max().expect("no ids found")
}
#[tokio::main]
async fn main() {
let dsn = std::env::var("POSTGRES_DSN").expect("missing postgres dsn");
let (mut db, connection) = tokio_postgres::connect(&dsn, tokio_postgres::NoTls)
.await
.expect("Unable to connect");
tokio::spawn(async move {
if let Err(e) = connection.await {
eprintln!("connection error: {}", e);
}
});
let max_id: i32 = db
.query_one("SELECT max(id) FROM e621", &[])
.await
.map(|row| row.get("max"))
.expect("Unable to get max post");
let client = reqwest::Client::builder()
.user_agent("Syfaro test client syfaro@huefox.com")
.build()
.expect("Unable to build http client");
println!("max is id: {}", max_id);
let mut now;
// Start with the minimum ID we're requesting being our previous highest
// ID found.
let mut min_id = max_id;
// Find highest ID to look for. Once we get this value back, we've gotten
// as many new posts as we were looking for.
let latest_id = get_latest_id(&client).await;
loop {
now = std::time::Instant::now();
// Load any posts with an ID higher than our previous run.
let (ids, post_data) = load_page(&client, min_id).await;
// Calculate a new minimum value to find posts after by looking at the
// maximum value returned in this run.
min_id = *ids.iter().max().expect("no ids found");
let tx = db.transaction().await.expect("unable to start transaction");
for post in post_data {
tx.execute(
"INSERT INTO e621 (data) VALUES ($1::json) ON CONFLICT DO NOTHING",
&[&post],
)
.await
.expect("Unable to insert");
}
tx.commit().await.expect("unable to commit transaction");
// If it contains the latest ID, we're done.
if ids.contains(&latest_id) {
println!("finished run, latest_id {}, max_id {}", latest_id, max_id);
break;
}
let elapsed = now.elapsed().as_millis() as u64;
if elapsed < 1000 {
let delay = 1000 - elapsed;
println!("delaying {}ms before loading next page", delay);
tokio::time::sleep(std::time::Duration::from_millis(delay)).await;
}
}
}

354
src/main.rs Normal file
View File

@ -0,0 +1,354 @@
use anyhow::Context;
use lazy_static::lazy_static;
use prometheus::{register_histogram, register_int_gauge, Histogram, IntGauge};
use sqlx::Connection;
static USER_AGENT: &str = "e621-watcher / FuzzySearch Ingester / Syfaro <syfaro@huefox.com>";
lazy_static! {
static ref SUBMISSION_BACKLOG: IntGauge = register_int_gauge!(
"fuzzysearch_watcher_e621_submission_backlog",
"Number of submissions behind the latest ID"
)
.unwrap();
static ref INDEX_DURATION: Histogram = register_histogram!(
"fuzzysearch_watcher_e621_index_duration",
"Duration to load an index of submissions"
)
.unwrap();
static ref SUBMISSION_DURATION: Histogram = register_histogram!(
"fuzzysearch_watcher_e621_submission_duration",
"Duration to ingest a submission"
)
.unwrap();
}
#[tokio::main]
async fn main() -> anyhow::Result<()> {
tracing_subscriber::fmt::init();
create_metrics_server().await;
let client = reqwest::ClientBuilder::default()
.user_agent(USER_AGENT)
.build()?;
let mut conn = sqlx::PgConnection::connect(&std::env::var("DATABASE_URL")?).await?;
let max_id: i32 = sqlx::query!("SELECT max(id) max FROM e621")
.fetch_one(&mut conn)
.await?
.max
.unwrap_or(0);
tracing::info!(max_id, "Found maximum ID in database");
let mut now;
let mut min_id = max_id;
let mut latest_id: Option<i32> = None;
loop {
now = std::time::Instant::now();
let lid = match latest_id {
Some(latest_id) => latest_id,
None => {
let _hist = INDEX_DURATION.start_timer();
let lid = get_latest_id(&client)
.await
.expect("Unable to get latest ID");
drop(_hist);
latest_id = Some(lid);
lid
}
};
let _hist = INDEX_DURATION.start_timer();
let page = load_page(&client, min_id).await?;
drop(_hist);
let posts = get_page_posts(&page)?;
let post_ids = get_post_ids(&posts);
tracing::trace!(?post_ids, "Collected posts");
min_id = match post_ids.iter().max() {
Some(id) => *id,
None => {
tracing::warn!("Found no new posts, sleeping");
tokio::time::sleep(std::time::Duration::from_secs(60 * 5)).await;
continue;
}
};
SUBMISSION_BACKLOG.set((lid - min_id).into());
let mut tx = conn.begin().await?;
for post in posts {
let _hist = SUBMISSION_DURATION.start_timer();
insert_submission(&mut tx, &client, post).await?;
drop(_hist);
SUBMISSION_BACKLOG.sub(1);
}
tx.commit().await?;
let elapsed = now.elapsed().as_millis() as u64;
if post_ids.contains(&lid) {
tracing::warn!(lid, "Page contained latest ID, sleeping");
tokio::time::sleep(std::time::Duration::from_secs(60 * 5)).await;
latest_id = None;
} else if elapsed < 1000 {
let delay = 1000 - elapsed;
tracing::warn!(delay, "Delaying before next request");
tokio::time::sleep(std::time::Duration::from_millis(delay)).await;
}
}
}
fn get_page_posts(page: &serde_json::Value) -> anyhow::Result<&Vec<serde_json::Value>> {
let page = match page {
serde_json::Value::Object(ref obj) => obj,
_ => return Err(anyhow::anyhow!("Top level object was not an object")),
};
let posts = page
.get("posts")
.context("Page did not contain posts object")?
.as_array()
.context("Posts was not an array")?;
Ok(posts)
}
fn get_post_ids(posts: &[serde_json::Value]) -> Vec<i32> {
let ids: Vec<i32> = posts
.iter()
.filter_map(|post| {
let post = match post {
serde_json::Value::Object(post) => post,
_ => return None,
};
let id = match post.get("id")? {
serde_json::Value::Number(num) => num.as_i64()? as i32,
_ => return None,
};
Some(id)
})
.collect();
ids
}
#[tracing::instrument(err, skip(client))]
async fn get_latest_id(client: &reqwest::Client) -> anyhow::Result<i32> {
tracing::debug!("Looking up current highest ID");
let query = vec![("limit", "1")];
let page: serde_json::Value = client
.get("https://e621.net/posts.json")
.query(&query)
.send()
.await?
.json()
.await?;
let posts = get_page_posts(&page)?;
let id = get_post_ids(&posts)
.into_iter()
.max()
.context("Page had no IDs")?;
tracing::info!(id, "Found maximum ID");
Ok(id)
}
#[tracing::instrument(err, skip(client))]
async fn load_page(client: &reqwest::Client, after_id: i32) -> anyhow::Result<serde_json::Value> {
tracing::debug!("Attempting to load page");
let query = vec![
("limit", "320".to_string()),
("page", format!("a{}", after_id)),
];
let body = client
.get("https://e621.net/posts.json")
.query(&query)
.send()
.await?
.json()
.await?;
Ok(body)
}
type ImageData = (Option<i64>, Option<String>, Option<Vec<u8>>);
#[tracing::instrument(err, skip(conn, client, post), fields(id))]
async fn insert_submission(
conn: &mut sqlx::Transaction<'_, sqlx::Postgres>,
client: &reqwest::Client,
post: &serde_json::Value,
) -> anyhow::Result<()> {
let id = post
.get("id")
.context("Post was missing ID")?
.as_i64()
.context("Post ID was not number")? as i32;
tracing::Span::current().record("id", &id);
tracing::debug!("Inserting submission");
tracing::trace!(?post, "Evaluating post");
let (hash, hash_error, sha256): ImageData = if let Some((url, ext)) = get_post_url_ext(&post) {
if url != "/images/deleted-preview.png" && (ext == "jpg" || ext == "png") {
load_image(&client, &url).await?
} else {
tracing::debug!("Ignoring post as it is deleted or not a supported image format");
(None, None, None)
}
} else {
tracing::warn!("Post had missing URL or extension");
(None, None, None)
};
sqlx::query!(
"INSERT INTO e621
(id, data, hash, hash_error, sha256) VALUES
($1, $2, $3, $4, $5)
ON CONFLICT (id) DO UPDATE SET
data = EXCLUDED.data,
hash = EXCLUDED.hash,
hash_error = EXCLUDED.hash_error,
sha256 = EXCLUDED.sha256",
id,
post,
hash,
hash_error,
sha256
)
.execute(conn)
.await?;
Ok(())
}
fn get_post_url_ext(post: &serde_json::Value) -> Option<(&str, &str)> {
let file = post.as_object()?.get("file")?.as_object()?;
let url = file.get("url")?.as_str()?;
let ext = file.get("ext")?.as_str()?;
Some((url, ext))
}
#[tracing::instrument(err, skip(client))]
async fn load_image(client: &reqwest::Client, url: &str) -> anyhow::Result<ImageData> {
use sha2::{Digest, Sha256};
use std::convert::TryInto;
let bytes = client.get(url).send().await?.bytes().await?;
tracing::trace!(len = bytes.len(), "Got submission image bytes");
let mut hasher = Sha256::new();
hasher.update(&bytes);
let result = hasher.finalize().to_vec();
tracing::trace!(?result, "Calculated image SHA256");
let hasher = get_hasher();
let img = match image::load_from_memory(&bytes) {
Ok(img) => img,
Err(err) => {
tracing::error!(?err, "Unable to open image");
return Ok((None, Some(err.to_string()), Some(result)));
}
};
tracing::trace!("Opened image successfully");
let hash = hasher.hash_image(&img);
let hash: [u8; 8] = hash.as_bytes().try_into()?;
let hash = i64::from_be_bytes(hash);
tracing::trace!(?hash, "Calculated image hash");
Ok((Some(hash), None, Some(result)))
}
fn get_hasher() -> img_hash::Hasher<[u8; 8]> {
img_hash::HasherConfig::with_bytes_type::<[u8; 8]>()
.hash_alg(img_hash::HashAlg::Gradient)
.hash_size(8, 8)
.preproc_dct()
.to_hasher()
}
async fn provide_metrics(
_: hyper::Request<hyper::Body>,
) -> Result<hyper::Response<hyper::Body>, std::convert::Infallible> {
use hyper::{Body, Response};
use prometheus::{Encoder, TextEncoder};
let mut buffer = Vec::new();
let encoder = TextEncoder::new();
let metric_families = prometheus::gather();
encoder.encode(&metric_families, &mut buffer).unwrap();
Ok(Response::new(Body::from(buffer)))
}
async fn create_metrics_server() {
use hyper::{
service::{make_service_fn, service_fn},
Server,
};
use std::convert::Infallible;
use std::net::SocketAddr;
let make_svc =
make_service_fn(|_conn| async { Ok::<_, Infallible>(service_fn(provide_metrics)) });
let addr: SocketAddr = std::env::var("METRICS_HOST")
.expect("Missing METRICS_HOST")
.parse()
.expect("Invalid METRICS_HOST");
let server = Server::bind(&addr).serve(make_svc);
tokio::spawn(async move { server.await.expect("Metrics server error") });
}
#[cfg(test)]
mod tests {
#[tokio::test]
async fn test_get_latest_id() {
let client = reqwest::ClientBuilder::new()
.user_agent(super::USER_AGENT)
.build()
.unwrap();
let latest_id = super::get_latest_id(&client)
.await
.expect("No error should occur");
assert!(latest_id > 1_000_000, "Latest ID should be reasonably high");
}
}