scirs2_metrics/optimization/distributed/
mod.rs

1//! Advanced distributed computing with modular architecture
2//!
3//! This module provides comprehensive distributed computing capabilities organized
4//! into focused submodules:
5//!
6//! - `config`: Configuration structures for all distributed components
7//! - `consensus`: Consensus algorithms (Raft, PBFT, etc.)
8//! - `sharding`: Data sharding and distribution management
9//! - `fault_tolerance`: Fault tolerance and recovery management
10//! - `scaling`: Auto-scaling and cluster management
11//! - `locality`: Data locality optimization
12//! - `optimization`: Performance optimization
13//! - `scheduling`: Task scheduling and coordination
14//! - `monitoring`: Performance monitoring and metrics collection
15
16pub mod config;
17pub mod consensus;
18pub mod fault_tolerance;
19pub mod sharding;
20pub mod transport;
21
22// Re-export main types for easier access
23pub use config::*;
24pub use consensus::{
25    ConsensusFactory, ConsensusManager, PbftConsensus, RaftConsensus, SimpleMajorityConsensus,
26};
27pub use fault_tolerance::{
28    FaultRecoveryManager, HealthMonitor, HealthSummary, NodeMetrics, RecoveryAction,
29};
30pub use sharding::{DataShard, ShardManager, ShardMigration, ShardingStats};
31
32// Missing types referenced in mod.rs
33/// Basic distributed configuration
34#[derive(Debug, Clone, Default, Serialize, Deserialize)]
35pub struct DistributedConfig {
36    pub cluster_size: usize,
37    pub node_id: String,
38    pub timeout_ms: u64,
39}
40
41/// Distributed metrics builder
42#[derive(Debug, Clone)]
43pub struct DistributedMetricsBuilder {
44    config: DistributedConfig,
45}
46
47impl DistributedMetricsBuilder {
48    pub fn new(config: DistributedConfig) -> Self {
49        Self { config }
50    }
51}
52
53/// Distributed metrics coordinator
54#[derive(Debug)]
55pub struct DistributedMetricsCoordinator {
56    config: DistributedConfig,
57}
58
59impl DistributedMetricsCoordinator {
60    pub fn new(config: DistributedConfig) -> Self {
61        Self { config }
62    }
63}
64
65use crate::error::{MetricsError, Result};
66use serde::{Deserialize, Serialize};
67use std::collections::HashMap;
68use std::sync::{Arc, RwLock};
69use std::time::{Duration, Instant, SystemTime};
70
71/// Advanced distributed coordinator that integrates all distributed components
72pub struct AdvancedDistributedCoordinator {
73    /// Configuration
74    config: AdvancedClusterConfig,
75    /// Consensus manager
76    #[allow(dead_code)]
77    consensus: Option<Box<dyn ConsensusManager>>,
78    /// Shard manager
79    shard_manager: ShardManager,
80    /// Fault recovery manager
81    fault_manager: FaultRecoveryManager,
82    /// Cluster state
83    cluster_state: Arc<RwLock<ClusterState>>,
84    /// Performance metrics
85    performance_metrics: Arc<RwLock<ClusterPerformanceMetrics>>,
86    /// Coordinator status
87    status: CoordinatorStatus,
88}
89
90impl AdvancedDistributedCoordinator {
91    /// Create a new advanced distributed coordinator
92    pub fn new(config: AdvancedClusterConfig) -> Result<Self> {
93        // Initialize shard manager
94        let shard_manager = ShardManager::new(config.sharding_config.clone());
95
96        // Initialize fault recovery manager
97        let fault_manager = FaultRecoveryManager::new(config.fault_tolerance.clone());
98
99        // Initialize cluster state
100        let cluster_state = Arc::new(RwLock::new(ClusterState::new()));
101
102        // Initialize performance metrics
103        let performance_metrics = Arc::new(RwLock::new(ClusterPerformanceMetrics::new()));
104
105        Ok(Self {
106            config,
107            consensus: None,
108            shard_manager,
109            fault_manager,
110            cluster_state,
111            performance_metrics,
112            status: CoordinatorStatus::Stopped,
113        })
114    }
115
116    /// Start the distributed coordinator
117    pub fn start(&mut self, node_id: String, peers: Vec<String>) -> Result<()> {
118        // Initialize consensus if configured
119        if self.config.consensus_config.algorithm != ConsensusAlgorithm::None {
120            let consensus = ConsensusFactory::create_consensus(
121                self.config.consensus_config.algorithm.clone(),
122                node_id.clone(),
123                peers.clone(),
124                self.config.consensus_config.clone(),
125            )?;
126            self.consensus = Some(consensus);
127
128            if let Some(ref mut consensus) = self.consensus {
129                consensus.start()?;
130            }
131        }
132
133        // Initialize sharding
134        self.shard_manager.initialize(peers.clone())?;
135
136        // Start fault monitoring
137        self.fault_manager.start()?;
138
139        // Update cluster state
140        {
141            let mut state = self.cluster_state.write().expect("Operation failed");
142            state.local_node_id = node_id;
143            state.cluster_size = peers.len() + 1; // +1 for local node
144            state.status = ClusterStatus::Active;
145            state.last_updated = SystemTime::now();
146        }
147
148        self.status = CoordinatorStatus::Running;
149
150        Ok(())
151    }
152
153    /// Stop the distributed coordinator
154    pub fn stop(&mut self) -> Result<()> {
155        // Stop fault monitoring
156        self.fault_manager.stop()?;
157
158        // Update status
159        self.status = CoordinatorStatus::Stopped;
160
161        // Update cluster state
162        {
163            let mut state = self.cluster_state.write().expect("Operation failed");
164            state.status = ClusterStatus::Stopped;
165            state.last_updated = SystemTime::now();
166        }
167
168        Ok(())
169    }
170
171    /// Submit data for consensus
172    pub fn submit_consensus(&mut self, data: Vec<u8>) -> Result<String> {
173        if let Some(ref mut consensus) = self.consensus {
174            consensus.propose(data)
175        } else {
176            Err(MetricsError::ConsensusError(
177                "Consensus not initialized".to_string(),
178            ))
179        }
180    }
181
182    /// Get consensus state
183    pub fn get_consensus_state(&self) -> Option<consensus::ConsensusState> {
184        self.consensus.as_ref().map(|c| c.get_state())
185    }
186
187    /// Find shard for a key
188    pub fn find_shard(&self, key: &str) -> Result<String> {
189        self.shard_manager.find_shard(key)
190    }
191
192    /// Get node responsible for a key
193    pub fn get_node_for_key(&self, key: &str) -> Result<String> {
194        self.shard_manager.get_node_for_key(key)
195    }
196
197    /// Add a new node to the cluster
198    pub fn add_node(&mut self, node_id: String) -> Result<()> {
199        // Add to sharding
200        self.shard_manager.add_node(node_id.clone())?;
201
202        // Register for health monitoring
203        let metrics = NodeMetrics::healthy();
204        self.fault_manager.register_node(node_id.clone(), metrics)?;
205
206        // Update cluster state
207        {
208            let mut state = self.cluster_state.write().expect("Operation failed");
209            state.cluster_size += 1;
210            state.last_updated = SystemTime::now();
211        }
212
213        Ok(())
214    }
215
216    /// Remove a node from the cluster
217    pub fn remove_node(&mut self, node_id: &str) -> Result<()> {
218        // Remove from sharding
219        self.shard_manager.remove_node(node_id)?;
220
221        // Unregister from health monitoring
222        self.fault_manager.unregister_node(node_id)?;
223
224        // Update cluster state
225        {
226            let mut state = self.cluster_state.write().expect("Operation failed");
227            state.cluster_size = state.cluster_size.saturating_sub(1);
228            state.last_updated = SystemTime::now();
229        }
230
231        Ok(())
232    }
233
234    /// Update node metrics
235    pub fn update_node_metrics(&mut self, node_id: &str, metrics: NodeMetrics) -> Result<()> {
236        self.fault_manager.update_node_metrics(node_id, metrics)
237    }
238
239    /// Get cluster health summary
240    pub fn get_health_summary(&self) -> HealthSummary {
241        self.fault_manager.get_health_summary()
242    }
243
244    /// Get sharding statistics
245    pub fn get_sharding_stats(&self) -> ShardingStats {
246        self.shard_manager.get_stats()
247    }
248
249    /// Get cluster state
250    pub fn get_cluster_state(&self) -> ClusterState {
251        let state = self.cluster_state.read().expect("Operation failed");
252        state.clone()
253    }
254
255    /// Get performance metrics
256    pub fn get_performance_metrics(&self) -> ClusterPerformanceMetrics {
257        let metrics = self.performance_metrics.read().expect("Operation failed");
258        metrics.clone()
259    }
260
261    /// Get coordinator status
262    pub fn get_status(&self) -> CoordinatorStatus {
263        self.status.clone()
264    }
265
266    /// Migrate shard to different node
267    pub fn migrate_shard(&mut self, shard_id: &str, target_node: Option<String>) -> Result<String> {
268        self.shard_manager.migrate_shard(shard_id, target_node)
269    }
270
271    /// Process recovery actions
272    pub fn process_recovery_actions(&mut self) -> Result<Vec<RecoveryAction>> {
273        Ok(self.fault_manager.get_recovery_history())
274    }
275
276    /// Update cluster performance metrics
277    pub fn update_performance_metrics(&mut self, metrics: ClusterPerformanceMetrics) {
278        let mut perf_metrics = self.performance_metrics.write().expect("Operation failed");
279        *perf_metrics = metrics;
280    }
281
282    /// Get active recovery operations
283    pub fn get_active_recoveries(&self) -> Vec<fault_tolerance::RecoveryOperation> {
284        self.fault_manager.get_active_recoveries()
285    }
286
287    /// List all shards
288    pub fn list_shards(&self) -> Vec<DataShard> {
289        self.shard_manager.list_shards()
290    }
291
292    /// Get shard by ID
293    pub fn get_shard(&self, shard_id: &str) -> Option<DataShard> {
294        self.shard_manager.get_shard(shard_id)
295    }
296
297    /// Update shard statistics
298    pub fn update_shard_stats(
299        &mut self,
300        shard_id: &str,
301        size_bytes: u64,
302        key_count: usize,
303    ) -> Result<()> {
304        self.shard_manager
305            .update_shard_stats(shard_id, size_bytes, key_count)
306    }
307}
308
309/// Coordinator status
310#[derive(Debug, Clone, PartialEq)]
311pub enum CoordinatorStatus {
312    /// Coordinator is stopped
313    Stopped,
314    /// Coordinator is starting up
315    Starting,
316    /// Coordinator is running normally
317    Running,
318    /// Coordinator is stopping
319    Stopping,
320    /// Coordinator is in error state
321    Error(String),
322}
323
324/// Cluster state information
325#[derive(Debug, Clone, Serialize, Deserialize)]
326pub struct ClusterState {
327    /// Local node ID
328    pub local_node_id: String,
329    /// Total cluster size
330    pub cluster_size: usize,
331    /// Cluster status
332    pub status: ClusterStatus,
333    /// Last state update
334    pub last_updated: SystemTime,
335    /// Node information
336    pub nodes: HashMap<String, NodeInfo>,
337    /// Active tasks
338    pub active_tasks: usize,
339    /// Configuration version
340    pub config_version: u64,
341}
342
343impl ClusterState {
344    /// Create new cluster state
345    pub fn new() -> Self {
346        Self {
347            local_node_id: String::new(),
348            cluster_size: 0,
349            status: ClusterStatus::Stopped,
350            last_updated: SystemTime::now(),
351            nodes: HashMap::new(),
352            active_tasks: 0,
353            config_version: 1,
354        }
355    }
356
357    /// Add node information
358    pub fn add_node(&mut self, node_id: String, info: NodeInfo) {
359        self.nodes.insert(node_id, info);
360        self.last_updated = SystemTime::now();
361    }
362
363    /// Remove node information
364    pub fn remove_node(&mut self, node_id: &str) {
365        self.nodes.remove(node_id);
366        self.last_updated = SystemTime::now();
367    }
368
369    /// Update node information
370    pub fn update_node(&mut self, node_id: &str, info: NodeInfo) {
371        if self.nodes.contains_key(node_id) {
372            self.nodes.insert(node_id.to_string(), info);
373            self.last_updated = SystemTime::now();
374        }
375    }
376
377    /// Get healthy node count
378    pub fn healthy_node_count(&self) -> usize {
379        self.nodes
380            .values()
381            .filter(|node| node.status == NodeStatus::Healthy)
382            .count()
383    }
384}
385
386impl Default for ClusterState {
387    fn default() -> Self {
388        Self::new()
389    }
390}
391
392/// Cluster status
393#[derive(Debug, Clone, Serialize, Deserialize, PartialEq)]
394pub enum ClusterStatus {
395    /// Cluster is stopped
396    Stopped,
397    /// Cluster is starting
398    Starting,
399    /// Cluster is active and healthy
400    Active,
401    /// Cluster is degraded but functional
402    Degraded,
403    /// Cluster has failed
404    Failed,
405    /// Cluster is in maintenance mode
406    Maintenance,
407}
408
409/// Node information in cluster state
410#[derive(Debug, Clone, Serialize, Deserialize)]
411pub struct NodeInfo {
412    /// Node ID
413    pub id: String,
414    /// Node address
415    pub address: Option<String>,
416    /// Node status
417    pub status: NodeStatus,
418    /// Node role
419    pub role: NodeRole,
420    /// Resource information
421    pub resources: ResourceInfo,
422    /// Last seen timestamp
423    pub last_seen: SystemTime,
424    /// Node metadata
425    pub metadata: HashMap<String, String>,
426}
427
428/// Node status
429#[derive(Debug, Clone, Serialize, Deserialize, PartialEq)]
430pub enum NodeStatus {
431    /// Node is healthy
432    Healthy,
433    /// Node is degraded
434    Degraded,
435    /// Node has failed
436    Failed,
437    /// Node is unknown
438    Unknown,
439    /// Node is in maintenance
440    Maintenance,
441}
442
443/// Node role in the cluster
444#[derive(Debug, Clone, Serialize, Deserialize, PartialEq)]
445pub enum NodeRole {
446    /// Master/leader node
447    Master,
448    /// Worker node
449    Worker,
450    /// Standby node
451    Standby,
452    /// Storage node
453    Storage,
454    /// Compute node
455    Compute,
456    /// Gateway node
457    Gateway,
458    /// Mixed role node
459    Mixed(Vec<String>),
460}
461
462/// Resource information for a node
463#[derive(Debug, Clone, Serialize, Deserialize)]
464pub struct ResourceInfo {
465    /// CPU cores available
466    pub cpu_cores: f64,
467    /// Memory in GB
468    pub memory_gb: f64,
469    /// Storage in GB
470    pub storage_gb: f64,
471    /// Network bandwidth in Gbps
472    pub network_gbps: f64,
473    /// GPU information
474    pub gpu_info: Option<GpuInfo>,
475    /// Custom resources
476    pub custom_resources: HashMap<String, f64>,
477}
478
479/// GPU resource information
480#[derive(Debug, Clone, Serialize, Deserialize)]
481pub struct GpuInfo {
482    /// GPU model
483    pub model: String,
484    /// GPU memory in GB
485    pub memory_gb: f64,
486    /// Number of GPU cores
487    pub cores: usize,
488    /// GPU utilization percentage
489    pub utilization: f64,
490}
491
492/// Cluster performance metrics
493#[derive(Debug, Clone, Serialize, Deserialize)]
494pub struct ClusterPerformanceMetrics {
495    /// Total throughput (operations/second)
496    pub throughput: f64,
497    /// Average latency (milliseconds)
498    pub latency_ms: f64,
499    /// Error rate (0-1)
500    pub error_rate: f64,
501    /// Resource utilization
502    pub resource_utilization: ResourceUtilization,
503    /// Network statistics
504    pub network_stats: NetworkStats,
505    /// Storage statistics
506    pub storage_stats: StorageStats,
507    /// Last updated timestamp
508    pub last_updated: SystemTime,
509}
510
511impl ClusterPerformanceMetrics {
512    /// Create new performance metrics
513    pub fn new() -> Self {
514        Self {
515            throughput: 0.0,
516            latency_ms: 0.0,
517            error_rate: 0.0,
518            resource_utilization: ResourceUtilization::default(),
519            network_stats: NetworkStats::default(),
520            storage_stats: StorageStats::default(),
521            last_updated: SystemTime::now(),
522        }
523    }
524}
525
526impl Default for ClusterPerformanceMetrics {
527    fn default() -> Self {
528        Self::new()
529    }
530}
531
532/// Resource utilization metrics
533#[derive(Debug, Clone, Serialize, Deserialize)]
534pub struct ResourceUtilization {
535    /// Average CPU utilization across cluster
536    pub cpu_percent: f64,
537    /// Average memory utilization across cluster
538    pub memory_percent: f64,
539    /// Average storage utilization across cluster
540    pub storage_percent: f64,
541    /// Average network utilization across cluster
542    pub network_percent: f64,
543    /// GPU utilization (if available)
544    pub gpu_percent: Option<f64>,
545}
546
547impl Default for ResourceUtilization {
548    fn default() -> Self {
549        Self {
550            cpu_percent: 0.0,
551            memory_percent: 0.0,
552            storage_percent: 0.0,
553            network_percent: 0.0,
554            gpu_percent: None,
555        }
556    }
557}
558
559/// Network statistics
560#[derive(Debug, Clone, Serialize, Deserialize)]
561pub struct NetworkStats {
562    /// Total bytes sent
563    pub bytes_sent: u64,
564    /// Total bytes received
565    pub bytes_received: u64,
566    /// Packets sent
567    pub packets_sent: u64,
568    /// Packets received
569    pub packets_received: u64,
570    /// Network errors
571    pub errors: u64,
572    /// Average bandwidth utilization (Mbps)
573    pub bandwidth_mbps: f64,
574}
575
576impl Default for NetworkStats {
577    fn default() -> Self {
578        Self {
579            bytes_sent: 0,
580            bytes_received: 0,
581            packets_sent: 0,
582            packets_received: 0,
583            errors: 0,
584            bandwidth_mbps: 0.0,
585        }
586    }
587}
588
589/// Storage statistics
590#[derive(Debug, Clone, Serialize, Deserialize)]
591pub struct StorageStats {
592    /// Total reads
593    pub reads: u64,
594    /// Total writes
595    pub writes: u64,
596    /// Bytes read
597    pub bytes_read: u64,
598    /// Bytes written
599    pub bytes_written: u64,
600    /// Storage errors
601    pub errors: u64,
602    /// Average IOPS
603    pub iops: f64,
604}
605
606impl Default for StorageStats {
607    fn default() -> Self {
608        Self {
609            reads: 0,
610            writes: 0,
611            bytes_read: 0,
612            bytes_written: 0,
613            errors: 0,
614            iops: 0.0,
615        }
616    }
617}
618
619/// Serde module for Duration serialization
620mod duration_serde {
621    use serde::{Deserialize, Deserializer, Serializer};
622    use std::time::Duration;
623
624    pub fn serialize<S>(duration: &Duration, serializer: S) -> std::result::Result<S::Ok, S::Error>
625    where
626        S: Serializer,
627    {
628        serializer.serialize_u64(duration.as_millis() as u64)
629    }
630
631    pub fn deserialize<'de, D>(deserializer: D) -> std::result::Result<Duration, D::Error>
632    where
633        D: Deserializer<'de>,
634    {
635        let millis = u64::deserialize(deserializer)?;
636        Ok(Duration::from_millis(millis))
637    }
638}
639
640/// Metrics collector placeholder for compatibility
641#[derive(Debug, Clone)]
642pub struct MetricsCollector {
643    // Implementation details
644}
645
646impl MetricsCollector {
647    pub fn new() -> Self {
648        Self {}
649    }
650}
651
652impl Default for MetricsCollector {
653    fn default() -> Self {
654        Self::new()
655    }
656}
657
658#[cfg(test)]
659mod tests {
660    use super::*;
661
662    #[test]
663    fn test_advanced_cluster_config_creation() {
664        let config = AdvancedClusterConfig::default();
665        assert!(config.consensus_config.quorum_size > 0);
666        assert!(config.sharding_config.shard_count > 0);
667        assert!(config.optimization_config.enabled);
668    }
669
670    #[test]
671    fn test_distributed_coordinator_creation() {
672        let config = AdvancedClusterConfig::default();
673        let coordinator = AdvancedDistributedCoordinator::new(config);
674        assert!(coordinator.is_ok());
675
676        let coordinator = coordinator.expect("Operation failed");
677        assert_eq!(coordinator.get_status(), CoordinatorStatus::Stopped);
678    }
679
680    #[test]
681    fn test_cluster_state_operations() {
682        let mut state = ClusterState::new();
683        assert_eq!(state.cluster_size, 0);
684
685        let node_info = NodeInfo {
686            id: "node1".to_string(),
687            address: Some("localhost:8080".to_string()),
688            status: NodeStatus::Healthy,
689            role: NodeRole::Worker,
690            resources: ResourceInfo {
691                cpu_cores: 4.0,
692                memory_gb: 16.0,
693                storage_gb: 100.0,
694                network_gbps: 1.0,
695                gpu_info: None,
696                custom_resources: HashMap::new(),
697            },
698            last_seen: SystemTime::now(),
699            metadata: HashMap::new(),
700        };
701
702        state.add_node("node1".to_string(), node_info);
703        assert_eq!(state.nodes.len(), 1);
704        assert_eq!(state.healthy_node_count(), 1);
705    }
706
707    #[test]
708    fn test_cluster_performance_metrics() {
709        let metrics = ClusterPerformanceMetrics::new();
710        assert_eq!(metrics.throughput, 0.0);
711        assert_eq!(metrics.error_rate, 0.0);
712    }
713
714    #[test]
715    fn test_coordinator_start_stop() {
716        let config = AdvancedClusterConfig::default();
717        let mut coordinator =
718            AdvancedDistributedCoordinator::new(config).expect("Operation failed");
719
720        let nodes = vec!["node1".to_string(), "node2".to_string()];
721        coordinator
722            .start("node0".to_string(), nodes)
723            .expect("Operation failed");
724        assert_eq!(coordinator.get_status(), CoordinatorStatus::Running);
725
726        coordinator.stop().expect("Operation failed");
727        assert_eq!(coordinator.get_status(), CoordinatorStatus::Stopped);
728    }
729}
scirs2_metrics/optimization/distributed/mod.rs

scirs2_metrics/optimization/distributed/
mod.rs
