diff options
Diffstat (limited to 'src/garage/cli/layout.rs')
| -rw-r--r-- | src/garage/cli/layout.rs | 226 |
1 files changed, 155 insertions, 71 deletions
diff --git a/src/garage/cli/layout.rs b/src/garage/cli/layout.rs index dc5315a1..ce2b11e0 100644 --- a/src/garage/cli/layout.rs +++ b/src/garage/cli/layout.rs @@ -1,3 +1,5 @@ +use bytesize::ByteSize; + use format_table::format_table; use garage_util::crdt::Crdt; use garage_util::error::*; @@ -14,8 +16,8 @@ pub async fn cli_layout_command_dispatch( rpc_host: NodeID, ) -> Result<(), Error> { match cmd { - LayoutOperation::Assign(configure_opt) => { - cmd_assign_role(system_rpc_endpoint, rpc_host, configure_opt).await + LayoutOperation::Assign(assign_opt) => { + cmd_assign_role(system_rpc_endpoint, rpc_host, assign_opt).await } LayoutOperation::Remove(remove_opt) => { cmd_remove_role(system_rpc_endpoint, rpc_host, remove_opt).await @@ -27,6 +29,9 @@ pub async fn cli_layout_command_dispatch( LayoutOperation::Revert(revert_opt) => { cmd_revert_layout(system_rpc_endpoint, rpc_host, revert_opt).await } + LayoutOperation::Config(config_opt) => { + cmd_config_layout(system_rpc_endpoint, rpc_host, config_opt).await + } } } @@ -60,14 +65,14 @@ pub async fn cmd_assign_role( .collect::<Result<Vec<_>, _>>()?; let mut roles = layout.roles.clone(); - roles.merge(&layout.staging); + roles.merge(&layout.staging_roles); for replaced in args.replace.iter() { let replaced_node = find_matching_node(layout.node_ids().iter().cloned(), replaced)?; match roles.get(&replaced_node) { Some(NodeRoleV(Some(_))) => { layout - .staging + .staging_roles .merge(&roles.update_mutator(replaced_node, NodeRoleV(None))); } _ => { @@ -83,7 +88,7 @@ pub async fn cmd_assign_role( return Err(Error::Message( "-c and -g are mutually exclusive, please configure node either with c>0 to act as a storage node or with -g to act as a gateway node".into())); } - if args.capacity == Some(0) { + if args.capacity == Some(ByteSize::b(0)) { return Err(Error::Message("Invalid capacity value: 0".into())); } @@ -91,7 +96,7 @@ pub async fn cmd_assign_role( let new_entry = match roles.get(&added_node) { Some(NodeRoleV(Some(old))) => { let capacity = match args.capacity { - Some(c) => Some(c), + Some(c) => Some(c.as_u64()), None if args.gateway => None, None => old.capacity, }; @@ -108,7 +113,7 @@ pub async fn cmd_assign_role( } _ => { let capacity = match args.capacity { - Some(c) => Some(c), + Some(c) => Some(c.as_u64()), None if args.gateway => None, None => return Err(Error::Message( "Please specify a capacity with the -c flag, or set node explicitly as gateway with -g".into())), @@ -125,7 +130,7 @@ pub async fn cmd_assign_role( }; layout - .staging + .staging_roles .merge(&roles.update_mutator(added_node, NodeRoleV(Some(new_entry)))); } @@ -145,13 +150,13 @@ pub async fn cmd_remove_role( let mut layout = fetch_layout(rpc_cli, rpc_host).await?; let mut roles = layout.roles.clone(); - roles.merge(&layout.staging); + roles.merge(&layout.staging_roles); let deleted_node = find_matching_node(roles.items().iter().map(|(id, _, _)| *id), &args.node_id)?; layout - .staging + .staging_roles .merge(&roles.update_mutator(deleted_node, NodeRoleV(None))); send_layout(rpc_cli, rpc_host, layout).await?; @@ -166,40 +171,45 @@ pub async fn cmd_show_layout( rpc_cli: &Endpoint<SystemRpc, ()>, rpc_host: NodeID, ) -> Result<(), Error> { - let mut layout = fetch_layout(rpc_cli, rpc_host).await?; + let layout = fetch_layout(rpc_cli, rpc_host).await?; println!("==== CURRENT CLUSTER LAYOUT ===="); - if !print_cluster_layout(&layout) { - println!("No nodes currently have a role in the cluster."); - println!("See `garage status` to view available nodes."); - } + print_cluster_layout(&layout, "No nodes currently have a role in the cluster.\nSee `garage status` to view available nodes."); println!(); println!("Current cluster layout version: {}", layout.version); - if print_staging_role_changes(&layout) { - layout.roles.merge(&layout.staging); - - println!(); - println!("==== NEW CLUSTER LAYOUT AFTER APPLYING CHANGES ===="); - if !print_cluster_layout(&layout) { - println!("No nodes have a role in the new layout."); - } - println!(); + let has_role_changes = print_staging_role_changes(&layout); + if has_role_changes { + let v = layout.version; + let res_apply = layout.apply_staged_changes(Some(v + 1)); // this will print the stats of what partitions // will move around when we apply - if layout.calculate_partition_assignation() { - println!("To enact the staged role changes, type:"); - println!(); - println!(" garage layout apply --version {}", layout.version + 1); - println!(); - println!( - "You can also revert all proposed changes with: garage layout revert --version {}", - layout.version + 1 - ); - } else { - println!("Not enough nodes have an assigned role to maintain enough copies of data."); - println!("This new layout cannot yet be applied."); + match res_apply { + Ok((layout, msg)) => { + println!(); + println!("==== NEW CLUSTER LAYOUT AFTER APPLYING CHANGES ===="); + print_cluster_layout(&layout, "No nodes have a role in the new layout."); + println!(); + + for line in msg.iter() { + println!("{}", line); + } + println!("To enact the staged role changes, type:"); + println!(); + println!(" garage layout apply --version {}", v + 1); + println!(); + println!( + "You can also revert all proposed changes with: garage layout revert --version {}", + v + 1) + } + Err(e) => { + println!("Error while trying to compute the assignment: {}", e); + println!("This new layout cannot yet be applied."); + println!( + "You can also revert all proposed changes with: garage layout revert --version {}", + v + 1) + } } } @@ -213,11 +223,14 @@ pub async fn cmd_apply_layout( ) -> Result<(), Error> { let layout = fetch_layout(rpc_cli, rpc_host).await?; - let layout = layout.apply_staged_changes(apply_opt.version)?; + let (layout, msg) = layout.apply_staged_changes(apply_opt.version)?; + for line in msg.iter() { + println!("{}", line); + } send_layout(rpc_cli, rpc_host, layout).await?; - println!("New cluster layout with updated role assignation has been applied in cluster."); + println!("New cluster layout with updated role assignment has been applied in cluster."); println!("Data will now be moved around between nodes accordingly."); Ok(()) @@ -238,6 +251,52 @@ pub async fn cmd_revert_layout( Ok(()) } +pub async fn cmd_config_layout( + rpc_cli: &Endpoint<SystemRpc, ()>, + rpc_host: NodeID, + config_opt: ConfigLayoutOpt, +) -> Result<(), Error> { + let mut layout = fetch_layout(rpc_cli, rpc_host).await?; + + let mut did_something = false; + match config_opt.redundancy { + None => (), + Some(r_str) => { + let r = r_str + .parse::<ZoneRedundancy>() + .ok_or_message("invalid zone redundancy value")?; + if let ZoneRedundancy::AtLeast(r_int) = r { + if r_int > layout.replication_factor { + return Err(Error::Message(format!( + "The zone redundancy must be smaller or equal to the \ + replication factor ({}).", + layout.replication_factor + ))); + } else if r_int < 1 { + return Err(Error::Message( + "The zone redundancy must be at least 1.".into(), + )); + } + } + + layout + .staging_parameters + .update(LayoutParameters { zone_redundancy: r }); + println!("The zone redundancy parameter has been set to '{}'.", r); + did_something = true; + } + } + + if !did_something { + return Err(Error::Message( + "Please specify an action for `garage layout config`".into(), + )); + } + + send_layout(rpc_cli, rpc_host, layout).await?; + Ok(()) +} + // --- utility --- pub async fn fetch_layout( @@ -268,59 +327,84 @@ pub async fn send_layout( Ok(()) } -pub fn print_cluster_layout(layout: &ClusterLayout) -> bool { - let mut table = vec!["ID\tTags\tZone\tCapacity".to_string()]; +pub fn print_cluster_layout(layout: &ClusterLayout, empty_msg: &str) { + let mut table = vec!["ID\tTags\tZone\tCapacity\tUsable capacity".to_string()]; for (id, _, role) in layout.roles.items().iter() { let role = match &role.0 { Some(r) => r, _ => continue, }; let tags = role.tags.join(","); - table.push(format!( - "{:?}\t{}\t{}\t{}", - id, - tags, - role.zone, - role.capacity_string() - )); + let usage = layout.get_node_usage(id).unwrap_or(0); + let capacity = layout.get_node_capacity(id).unwrap_or(0); + if capacity > 0 { + table.push(format!( + "{:?}\t{}\t{}\t{}\t{} ({:.1}%)", + id, + tags, + role.zone, + role.capacity_string(), + ByteSize::b(usage as u64 * layout.partition_size).to_string_as(false), + (100.0 * usage as f32 * layout.partition_size as f32) / (capacity as f32) + )); + } else { + table.push(format!( + "{:?}\t{}\t{}\t{}", + id, + tags, + role.zone, + role.capacity_string() + )); + }; } - if table.len() == 1 { - false - } else { + if table.len() > 1 { format_table(table); - true + println!(); + println!("Zone redundancy: {}", layout.parameters.zone_redundancy); + } else { + println!("{}", empty_msg); } } pub fn print_staging_role_changes(layout: &ClusterLayout) -> bool { - let has_changes = layout - .staging + let has_role_changes = layout + .staging_roles .items() .iter() .any(|(k, _, v)| layout.roles.get(k) != Some(v)); + let has_layout_changes = *layout.staging_parameters.get() != layout.parameters; - if has_changes { + if has_role_changes || has_layout_changes { println!(); println!("==== STAGED ROLE CHANGES ===="); - let mut table = vec!["ID\tTags\tZone\tCapacity".to_string()]; - for (id, _, role) in layout.staging.items().iter() { - if layout.roles.get(id) == Some(role) { - continue; - } - if let Some(role) = &role.0 { - let tags = role.tags.join(","); - table.push(format!( - "{:?}\t{}\t{}\t{}", - id, - tags, - role.zone, - role.capacity_string() - )); - } else { - table.push(format!("{:?}\tREMOVED", id)); + if has_role_changes { + let mut table = vec!["ID\tTags\tZone\tCapacity".to_string()]; + for (id, _, role) in layout.staging_roles.items().iter() { + if layout.roles.get(id) == Some(role) { + continue; + } + if let Some(role) = &role.0 { + let tags = role.tags.join(","); + table.push(format!( + "{:?}\t{}\t{}\t{}", + id, + tags, + role.zone, + role.capacity_string() + )); + } else { + table.push(format!("{:?}\tREMOVED", id)); + } } + format_table(table); + println!(); + } + if has_layout_changes { + println!( + "Zone redundancy: {}", + layout.staging_parameters.get().zone_redundancy + ); } - format_table(table); true } else { false |