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Compaction of pruned data for chain data structures (#746)

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* Implementation of compaction for the chain. Single entry point on the chain triggers compaction of all MMRs as well as the cleanup of the positional index and full blocks.
* API endpoint, additional tests and more fixes for compaction
* Also prune PMMR metadata, minor bug fix
* PMMR store tests fix
This commit is contained in:
Ignotus Peverell
2018-03-06 17:58:33 +00:00
committed by GitHub
parent 1ab43df807
commit a9d1b76414
14 changed files with 198 additions and 62 deletions
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api/src/handlers.rs
+24 -6
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@@ -351,8 +351,8 @@ impl Handler for PeerGetHandler {
}
}
// Status handler. Post a summary of the server status
// GET /v1/status
/// Status handler. Post a summary of the server status
/// GET /v1/status
pub struct StatusHandler {
pub chain: Weak<chain::Chain>,
pub peers: Weak<p2p::Peers>,
@@ -370,8 +370,8 @@ impl Handler for StatusHandler {
}
}
// Chain handler. Get the head details.
// GET /v1/chain
/// Chain handler. Get the head details.
/// GET /v1/chain
pub struct ChainHandler {
pub chain: Weak<chain::Chain>,
}
@@ -388,6 +388,20 @@ impl Handler for ChainHandler {
}
}
/// Chain compaction handler. Trigger a compaction of the chain state to regain
/// storage space.
/// GET /v1/chain/compact
pub struct ChainCompactHandler {
pub chain: Weak<chain::Chain>,
}
impl Handler for ChainCompactHandler {
fn handle(&self, _req: &mut Request) -> IronResult<Response> {
w(&self.chain).compact().unwrap();
Ok(Response::with((status::Ok, "{}")))
}
}
/// Gets block details given either a hash or height.
/// GET /v1/blocks/<hash>
/// GET /v1/blocks/<height>
@@ -581,6 +595,9 @@ pub fn start_rest_apis<T>(
let chain_tip_handler = ChainHandler {
chain: chain.clone(),
};
let chain_compact_handler = ChainCompactHandler {
chain: chain.clone(),
};
let status_handler = StatusHandler {
chain: chain.clone(),
peers: peers.clone(),
@@ -610,6 +627,7 @@ pub fn start_rest_apis<T>(
let route_list = vec![
"get blocks".to_string(),
"get chain".to_string(),
"get chain/compact".to_string(),
"get chain/outputs".to_string(),
"get status".to_string(),
"get txhashset/roots".to_string(),
@@ -624,13 +642,13 @@ pub fn start_rest_apis<T>(
"get peers/connected".to_string(),
"get peers/a.b.c.d".to_string(),
];
// We allow manually banning, like this:
// curl -v -X POST http://127.0.0.1:13413/v1/peers/88.99.251.87:13414/ban
let index_handler = IndexHandler { list: route_list };
let router = router!(
index: get "/" => index_handler,
blocks: get "/blocks/*" => block_handler,
chain_tip: get "/chain" => chain_tip_handler,
chain_compact: get "/chain/compact" => chain_compact_handler,
chain_outputs: get "/chain/outputs/*" => output_handler,
status: get "/status" => status_handler,
txhashset_roots: get "/txhashset/*" => txhashset_handler,