forked from Deuxfleurs/garage
Arrange block manager
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09fd6ea7f0
commit
13e2eda0c2
1 changed files with 66 additions and 84 deletions
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@ -20,7 +20,7 @@ use garage_rpc::rpc_client::*;
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use garage_rpc::rpc_server::*;
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use garage_table::table_sharded::TableShardedReplication;
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use garage_table::{DeletedFilter, TableReplication};
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use garage_table::TableReplication;
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use crate::block_ref_table::*;
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@ -303,56 +303,49 @@ impl BlockManager {
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}
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if exists && !needed {
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let garage = self.garage.load_full().unwrap();
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let active_refs = garage
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.block_ref_table
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.get_range(&hash, None, Some(DeletedFilter::NotDeleted), 1)
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.await?;
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let needed_by_others = !active_refs.is_empty();
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if needed_by_others {
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let ring = self.system.ring.borrow().clone();
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let who = self.replication.replication_nodes(&hash, &ring);
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let msg = Arc::new(Message::NeedBlockQuery(*hash));
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let who_needs_fut = who.iter().map(|to| {
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self.rpc_client
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.call_arc(*to, msg.clone(), NEED_BLOCK_QUERY_TIMEOUT)
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});
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let who_needs = join_all(who_needs_fut).await;
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trace!("Offloading block {:?}", hash);
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let mut need_nodes = vec![];
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for (node, needed) in who.into_iter().zip(who_needs.iter()) {
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match needed {
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Ok(Message::NeedBlockReply(needed)) => {
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if *needed {
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need_nodes.push(node);
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}
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}
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Err(e) => {
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return Err(Error::Message(format!(
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"Should delete block, but unable to confirm that all other nodes that need it have it: {}",
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e
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)));
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}
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Ok(_) => {
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return Err(Error::Message(format!(
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"Unexpected response to NeedBlockQuery RPC"
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)));
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let ring = self.system.ring.borrow().clone();
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let mut who = self.replication.replication_nodes(&hash, &ring);
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who.retain(|id| *id != self.system.id);
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let msg = Arc::new(Message::NeedBlockQuery(*hash));
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let who_needs_fut = who.iter().map(|to| {
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self.rpc_client
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.call_arc(*to, msg.clone(), NEED_BLOCK_QUERY_TIMEOUT)
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});
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let who_needs_resps = join_all(who_needs_fut).await;
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let mut need_nodes = vec![];
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for (node, needed) in who.iter().zip(who_needs_resps.into_iter()) {
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match needed? {
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Message::NeedBlockReply(needed) => {
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if needed {
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need_nodes.push(*node);
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}
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}
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}
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if need_nodes.len() > 0 {
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let put_block_message = self.read_block(hash).await?;
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self.rpc_client
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.try_call_many(
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&need_nodes[..],
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put_block_message,
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RequestStrategy::with_quorum(need_nodes.len())
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.with_timeout(BLOCK_RW_TIMEOUT),
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)
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.await?;
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_ => {
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return Err(Error::Message(format!(
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"Unexpected response to NeedBlockQuery RPC"
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)));
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}
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}
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}
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if need_nodes.len() > 0 {
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trace!("Block {:?} neede by {} nodes, sending", hash, need_nodes.len());
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let put_block_message = Arc::new(self.read_block(hash).await?);
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let put_resps = join_all(need_nodes.iter().map(|to| {
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self.rpc_client.call_arc(*to, put_block_message.clone(), BLOCK_RW_TIMEOUT)
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})).await;
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for resp in put_resps {
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resp?;
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}
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}
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trace!("Deleting block {:?}, offload finished ({} / {})", hash, need_nodes.len(), who.len());
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fs::remove_file(path).await?;
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self.resync_queue.remove(&hash)?;
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}
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@ -427,53 +420,42 @@ impl BlockManager {
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}
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// 2. Repair blocks actually on disk
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let mut ls_data_dir = fs::read_dir(&self.data_dir).await?;
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while let Some(data_dir_ent) = ls_data_dir.next().await {
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let data_dir_ent = data_dir_ent?;
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let dir_name = data_dir_ent.file_name();
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let dir_name = match dir_name.into_string() {
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Ok(x) => x,
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Err(_) => continue,
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};
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if dir_name.len() != 2 || hex::decode(&dir_name).is_err() {
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continue;
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}
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self.repair_aux_read_dir_rec(&self.data_dir, must_exit).await?;
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let mut ls_data_dir_2 = match fs::read_dir(data_dir_ent.path()).await {
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Err(e) => {
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warn!(
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"Warning: could not list dir {:?}: {}",
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data_dir_ent.path().to_str(),
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e
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);
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continue;
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}
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Ok(x) => x,
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};
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while let Some(file) = ls_data_dir_2.next().await {
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let file = file?;
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let file_name = file.file_name();
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let file_name = match file_name.into_string() {
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Ok(())
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}
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fn repair_aux_read_dir_rec<'a>(&'a self, path: &'a PathBuf, must_exit: &'a watch::Receiver<bool>) -> BoxFuture<'a, Result<(), Error>> {
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async move {
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let mut ls_data_dir = fs::read_dir(path).await?;
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while let Some(data_dir_ent) = ls_data_dir.next().await {
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let data_dir_ent = data_dir_ent?;
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let name = data_dir_ent.file_name();
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let name = match name.into_string() {
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Ok(x) => x,
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Err(_) => continue,
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};
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if file_name.len() != 64 {
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continue;
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let ent_type = data_dir_ent.file_type().await?;
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println!("name: {}, path: {:?}", name, data_dir_ent.path().to_str());
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if name.len() == 2 && hex::decode(&name).is_ok() && ent_type.is_dir() {
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self.repair_aux_read_dir_rec(&data_dir_ent.path(), must_exit).await?;
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} else if name.len() == 64 {
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let hash_bytes = match hex::decode(&name) {
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Ok(h) => h,
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Err(_) => continue,
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};
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let mut hash = [0u8; 32];
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hash.copy_from_slice(&hash_bytes[..]);
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self.put_to_resync(&hash.into(), 0)?;
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}
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let hash_bytes = match hex::decode(&file_name) {
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Ok(h) => h,
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Err(_) => continue,
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};
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let mut hash = [0u8; 32];
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hash.copy_from_slice(&hash_bytes[..]);
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self.put_to_resync(&hash.into(), 0)?;
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if *must_exit.borrow() {
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return Ok(());
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break;
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}
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}
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}
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Ok(())
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Ok(())
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}.boxed()
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}
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}
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