use diesel::{sql_query, PgConnection, RunQueryDsl};
use lemmy_api_common::context::LemmyContext;
use lemmy_db_schema::{
- schema::{activity, captcha_answer, comment, community_person_ban, instance, person, post},
+ schema::{
+ captcha_answer,
+ comment,
+ community_person_ban,
+ instance,
+ person,
+ post,
+ received_activity,
+ sent_activity,
+ },
source::instance::{Instance, InstanceForm},
utils::{naive_now, DELETED_REPLACEMENT_TEXT},
};
use lemmy_routes::nodeinfo::NodeInfo;
-use lemmy_utils::{error::LemmyError, REQWEST_TIMEOUT};
+use lemmy_utils::{
+ error::{LemmyError, LemmyResult},
+ REQWEST_TIMEOUT,
+};
use reqwest::blocking::Client;
use std::{thread, time::Duration};
-use tracing::{error, info};
+use tracing::{error, info, warn};
/// Schedules various cleanup tasks for lemmy in a background thread
pub fn setup(
// Update active counts every hour
let url = db_url.clone();
scheduler.every(CTimeUnits::hour(1)).run(move || {
- let mut conn = PgConnection::establish(&url).expect("could not establish connection");
- active_counts(&mut conn);
- update_banned_when_expired(&mut conn);
+ PgConnection::establish(&url)
+ .map(|mut conn| {
+ active_counts(&mut conn);
+ update_banned_when_expired(&mut conn);
+ })
+ .map_err(|e| {
+ error!("Failed to establish db connection for active counts update: {e}");
+ })
+ .ok();
});
// Update hot ranks every 15 minutes
let url = db_url.clone();
scheduler.every(CTimeUnits::minutes(15)).run(move || {
- let mut conn = PgConnection::establish(&url).expect("could not establish connection");
- update_hot_ranks(&mut conn, true);
+ PgConnection::establish(&url)
+ .map(|mut conn| {
+ update_hot_ranks(&mut conn);
+ })
+ .map_err(|e| {
+ error!("Failed to establish db connection for hot ranks update: {e}");
+ })
+ .ok();
});
// Delete any captcha answers older than ten minutes, every ten minutes
let url = db_url.clone();
scheduler.every(CTimeUnits::minutes(10)).run(move || {
- let mut conn = PgConnection::establish(&url).expect("could not establish connection");
- delete_expired_captcha_answers(&mut conn);
+ PgConnection::establish(&url)
+ .map(|mut conn| {
+ delete_expired_captcha_answers(&mut conn);
+ })
+ .map_err(|e| {
+ error!("Failed to establish db connection for captcha cleanup: {e}");
+ })
+ .ok();
});
// Clear old activities every week
let url = db_url.clone();
scheduler.every(CTimeUnits::weeks(1)).run(move || {
- let mut conn = PgConnection::establish(&url).expect("could not establish connection");
- clear_old_activities(&mut conn);
+ PgConnection::establish(&url)
+ .map(|mut conn| {
+ clear_old_activities(&mut conn);
+ })
+ .map_err(|e| {
+ error!("Failed to establish db connection for activity cleanup: {e}");
+ })
+ .ok();
});
// Remove old rate limit buckets after 1 to 2 hours of inactivity
// Overwrite deleted & removed posts and comments every day
let url = db_url.clone();
scheduler.every(CTimeUnits::days(1)).run(move || {
- let mut conn = PgConnection::establish(&url).expect("could not establish connection");
- overwrite_deleted_posts_and_comments(&mut conn);
+ PgConnection::establish(&db_url)
+ .map(|mut conn| {
+ overwrite_deleted_posts_and_comments(&mut conn);
+ })
+ .map_err(|e| {
+ error!("Failed to establish db connection for deleted content cleanup: {e}");
+ })
+ .ok();
});
// Update the Instance Software
scheduler.every(CTimeUnits::days(1)).run(move || {
- let mut conn = PgConnection::establish(&db_url).expect("could not establish connection");
- update_instance_software(&mut conn, &user_agent);
+ PgConnection::establish(&url)
+ .map(|mut conn| {
+ update_instance_software(&mut conn, &user_agent)
+ .map_err(|e| warn!("Failed to update instance software: {e}"))
+ .ok();
+ })
+ .map_err(|e| {
+ error!("Failed to establish db connection for instance software update: {e}");
+ })
+ .ok();
});
// Manually run the scheduler in an event loop
fn startup_jobs(db_url: &str) {
let mut conn = PgConnection::establish(db_url).expect("could not establish connection");
active_counts(&mut conn);
- update_hot_ranks(&mut conn, false);
+ update_hot_ranks(&mut conn);
update_banned_when_expired(&mut conn);
clear_old_activities(&mut conn);
overwrite_deleted_posts_and_comments(&mut conn);
/// Update the hot_rank columns for the aggregates tables
/// Runs in batches until all necessary rows are updated once
-fn update_hot_ranks(conn: &mut PgConnection, last_week_only: bool) {
- let process_start_time = if last_week_only {
- info!("Updating hot ranks for last week...");
- naive_now() - chrono::Duration::days(7)
- } else {
- info!("Updating hot ranks for all history...");
- NaiveDateTime::from_timestamp_opt(0, 0).expect("0 timestamp creation")
- };
+fn update_hot_ranks(conn: &mut PgConnection) {
+ info!("Updating hot ranks for all history...");
process_hot_ranks_in_batches(
conn,
"post_aggregates",
+ "a.hot_rank != 0 OR a.hot_rank_active != 0",
"SET hot_rank = hot_rank(a.score, a.published),
hot_rank_active = hot_rank(a.score, a.newest_comment_time_necro)",
- process_start_time,
);
process_hot_ranks_in_batches(
conn,
"comment_aggregates",
+ "a.hot_rank != 0",
"SET hot_rank = hot_rank(a.score, a.published)",
- process_start_time,
);
process_hot_ranks_in_batches(
conn,
"community_aggregates",
+ "a.hot_rank != 0",
"SET hot_rank = hot_rank(a.subscribers, a.published)",
- process_start_time,
);
info!("Finished hot ranks update!");
published: NaiveDateTime,
}
-/// Runs the hot rank update query in batches until all rows after `process_start_time` have been
-/// processed.
-/// In `set_clause`, "a" will refer to the current aggregates table.
+/// Runs the hot rank update query in batches until all rows have been processed.
+/// In `where_clause` and `set_clause`, "a" will refer to the current aggregates table.
/// Locked rows are skipped in order to prevent deadlocks (they will likely get updated on the next
/// run)
fn process_hot_ranks_in_batches(
conn: &mut PgConnection,
table_name: &str,
+ where_clause: &str,
set_clause: &str,
- process_start_time: NaiveDateTime,
) {
+ let process_start_time = NaiveDateTime::from_timestamp_opt(0, 0).expect("0 timestamp creation");
+
let update_batch_size = 1000; // Bigger batches than this tend to cause seq scans
+ let mut processed_rows_count = 0;
let mut previous_batch_result = Some(process_start_time);
while let Some(previous_batch_last_published) = previous_batch_result {
// Raw `sql_query` is used as a performance optimization - Diesel does not support doing this
let result = sql_query(format!(
r#"WITH batch AS (SELECT a.id
FROM {aggregates_table} a
- WHERE a.published > $1
+ WHERE a.published > $1 AND ({where_clause})
ORDER BY a.published
LIMIT $2
FOR UPDATE SKIP LOCKED)
FROM batch WHERE a.id = batch.id RETURNING a.published;
"#,
aggregates_table = table_name,
- set_clause = set_clause
+ set_clause = set_clause,
+ where_clause = where_clause
))
.bind::<Timestamp, _>(previous_batch_last_published)
.bind::<Integer, _>(update_batch_size)
.get_results::<HotRanksUpdateResult>(conn);
match result {
- Ok(updated_rows) => previous_batch_result = updated_rows.last().map(|row| row.published),
+ Ok(updated_rows) => {
+ processed_rows_count += updated_rows.len();
+ previous_batch_result = updated_rows.last().map(|row| row.published);
+ }
Err(e) => {
error!("Failed to update {} hot_ranks: {}", table_name, e);
break;
}
}
info!(
- "Finished process_hot_ranks_in_batches execution for {}",
- table_name
+ "Finished process_hot_ranks_in_batches execution for {} (processed {} rows)",
+ table_name, processed_rows_count
);
}
fn delete_expired_captcha_answers(conn: &mut PgConnection) {
- match diesel::delete(
+ diesel::delete(
captcha_answer::table.filter(captcha_answer::published.lt(now - IntervalDsl::minutes(10))),
)
.execute(conn)
- {
- Ok(_) => {
- info!("Done.");
- }
- Err(e) => {
- error!("Failed to clear old captcha answers: {}", e)
- }
- }
+ .map(|_| {
+ info!("Done.");
+ })
+ .map_err(|e| error!("Failed to clear old captcha answers: {e}"))
+ .ok();
}
/// Clear old activities (this table gets very large)
fn clear_old_activities(conn: &mut PgConnection) {
info!("Clearing old activities...");
- match diesel::delete(activity::table.filter(activity::published.lt(now - 6.months())))
+ diesel::delete(sent_activity::table.filter(sent_activity::published.lt(now - 3.months())))
.execute(conn)
- {
- Ok(_) => {
- info!("Done.");
- }
- Err(e) => {
- error!("Failed to clear old activities: {}", e)
- }
- }
+ .map_err(|e| error!("Failed to clear old sent activities: {e}"))
+ .ok();
+
+ diesel::delete(
+ received_activity::table.filter(received_activity::published.lt(now - 3.months())),
+ )
+ .execute(conn)
+ .map(|_| info!("Done."))
+ .map_err(|e| error!("Failed to clear old received activities: {e}"))
+ .ok();
}
/// overwrite posts and comments 30d after deletion
fn overwrite_deleted_posts_and_comments(conn: &mut PgConnection) {
info!("Overwriting deleted posts...");
- match diesel::update(
+ diesel::update(
post::table
.filter(post::deleted.eq(true))
.filter(post::updated.lt(now.nullable() - 1.months()))
post::name.eq(DELETED_REPLACEMENT_TEXT),
))
.execute(conn)
- {
- Ok(_) => {
- info!("Done.");
- }
- Err(e) => {
- error!("Failed to overwrite deleted posts: {}", e)
- }
- }
+ .map(|_| {
+ info!("Done.");
+ })
+ .map_err(|e| error!("Failed to overwrite deleted posts: {e}"))
+ .ok();
info!("Overwriting deleted comments...");
- match diesel::update(
+ diesel::update(
comment::table
.filter(comment::deleted.eq(true))
.filter(comment::updated.lt(now.nullable() - 1.months()))
)
.set(comment::content.eq(DELETED_REPLACEMENT_TEXT))
.execute(conn)
- {
- Ok(_) => {
- info!("Done.");
- }
- Err(e) => {
- error!("Failed to overwrite deleted comments: {}", e)
- }
- }
+ .map(|_| {
+ info!("Done.");
+ })
+ .map_err(|e| error!("Failed to overwrite deleted comments: {e}"))
+ .ok();
}
/// Re-calculate the site and community active counts every 12 hours
for i in &intervals {
let update_site_stmt = format!(
- "update site_aggregates set users_active_{} = (select * from site_aggregates_activity('{}'))",
+ "update site_aggregates set users_active_{} = (select * from site_aggregates_activity('{}')) where site_id = 1",
i.1, i.0
);
- match sql_query(update_site_stmt).execute(conn) {
- Ok(_) => {}
- Err(e) => {
- error!("Failed to update site stats: {}", e)
- }
- }
+ sql_query(update_site_stmt)
+ .execute(conn)
+ .map_err(|e| error!("Failed to update site stats: {e}"))
+ .ok();
let update_community_stmt = format!("update community_aggregates ca set users_active_{} = mv.count_ from community_aggregates_activity('{}') mv where ca.community_id = mv.community_id_", i.1, i.0);
- match sql_query(update_community_stmt).execute(conn) {
- Ok(_) => {}
- Err(e) => {
- error!("Failed to update community stats: {}", e)
- }
- }
+ sql_query(update_community_stmt)
+ .execute(conn)
+ .map_err(|e| error!("Failed to update community stats: {e}"))
+ .ok();
}
info!("Done.");
fn update_banned_when_expired(conn: &mut PgConnection) {
info!("Updating banned column if it expires ...");
- match diesel::update(
+ diesel::update(
person::table
.filter(person::banned.eq(true))
.filter(person::ban_expires.lt(now)),
)
.set(person::banned.eq(false))
.execute(conn)
- {
- Ok(_) => {}
- Err(e) => {
- error!("Failed to update person.banned when expires: {}", e)
- }
- }
- match diesel::delete(community_person_ban::table.filter(community_person_ban::expires.lt(now)))
+ .map_err(|e| error!("Failed to update person.banned when expires: {e}"))
+ .ok();
+
+ diesel::delete(community_person_ban::table.filter(community_person_ban::expires.lt(now)))
.execute(conn)
- {
- Ok(_) => {}
- Err(e) => {
- error!("Failed to remove community_ban expired rows: {}", e)
- }
- }
+ .map_err(|e| error!("Failed to remove community_ban expired rows: {e}"))
+ .ok();
}
/// Updates the instance software and version
-fn update_instance_software(conn: &mut PgConnection, user_agent: &str) {
+///
+/// TODO: this should be async
+/// TODO: if instance has been dead for a long time, it should be checked less frequently
+fn update_instance_software(conn: &mut PgConnection, user_agent: &str) -> LemmyResult<()> {
info!("Updating instances software and versions...");
- let client = match Client::builder()
+ let client = Client::builder()
.user_agent(user_agent)
.timeout(REQWEST_TIMEOUT)
- .build()
- {
- Ok(client) => client,
- Err(e) => {
- error!("Failed to build reqwest client: {}", e);
- return;
- }
- };
+ .build()?;
- let instances = match instance::table.get_results::<Instance>(conn) {
- Ok(instances) => instances,
- Err(e) => {
- error!("Failed to get instances: {}", e);
- return;
- }
- };
+ let instances = instance::table.get_results::<Instance>(conn)?;
for instance in instances {
let node_info_url = format!("https://{}/nodeinfo/2.0.json", instance.domain);
- // Skip it if it can't connect
- let res = client
- .get(&node_info_url)
- .send()
- .ok()
- .and_then(|t| t.json::<NodeInfo>().ok());
-
- if let Some(node_info) = res {
- let software = node_info.software.as_ref();
- let form = InstanceForm::builder()
- .domain(instance.domain)
- .software(software.and_then(|s| s.name.clone()))
- .version(software.and_then(|s| s.version.clone()))
- .updated(Some(naive_now()))
- .build();
-
- match diesel::update(instance::table.find(instance.id))
- .set(form)
- .execute(conn)
- {
- Ok(_) => {
- info!("Done.");
+ // The `updated` column is used to check if instances are alive. If it is more than three days
+ // in the past, no outgoing activities will be sent to that instance. However not every
+ // Fediverse instance has a valid Nodeinfo endpoint (its not required for Activitypub). That's
+ // why we always need to mark instances as updated if they are alive.
+ let default_form = InstanceForm::builder()
+ .domain(instance.domain.clone())
+ .updated(Some(naive_now()))
+ .build();
+ let form = match client.get(&node_info_url).send() {
+ Ok(res) if res.status().is_client_error() => {
+ // Instance doesnt have nodeinfo but sent a response, consider it alive
+ Some(default_form)
+ }
+ Ok(res) => match res.json::<NodeInfo>() {
+ Ok(node_info) => {
+ // Instance sent valid nodeinfo, write it to db
+ let software = node_info.software.as_ref();
+ Some(
+ InstanceForm::builder()
+ .domain(instance.domain)
+ .updated(Some(naive_now()))
+ .software(software.and_then(|s| s.name.clone()))
+ .version(software.and_then(|s| s.version.clone()))
+ .build(),
+ )
}
- Err(e) => {
- error!("Failed to update site instance software: {}", e);
- return;
+ Err(_) => {
+ // No valid nodeinfo but valid HTTP response, consider instance alive
+ Some(default_form)
}
+ },
+ Err(_) => {
+ // dead instance, do nothing
+ None
}
+ };
+ if let Some(form) = form {
+ diesel::update(instance::table.find(instance.id))
+ .set(form)
+ .execute(conn)?;
}
}
+ info!("Finished updating instances software and versions...");
+ Ok(())
}
#[cfg(test)]
mod tests {
+ #![allow(clippy::unwrap_used)]
+ #![allow(clippy::indexing_slicing)]
+
use lemmy_routes::nodeinfo::NodeInfo;
use reqwest::Client;
projects / lemmy.git / blobdiff