More configurable rocksdb compaction (#15213)

rocksdb compaction can cause long stalls, so
make it more configurable to try and reduce those stalls
and also to coordinate between multiple nodes to not induce
stall at the same time.

core/src/validator.rs

@@ -104,6 +104,8 @@ pub struct ValidatorConfig {
     pub accounts_hash_fault_injection_slots: u64, // 0 = no fault injection
     pub frozen_accounts: Vec<Pubkey>,
     pub no_rocksdb_compaction: bool,
+    pub rocksdb_compaction_interval: Option<u64>,
+    pub rocksdb_max_compaction_jitter: Option<u64>,
     pub accounts_hash_interval_slots: u64,
     pub max_genesis_archive_unpacked_size: u64,
     pub wal_recovery_mode: Option<BlockstoreRecoveryMode>,
@@ -152,6 +154,8 @@ impl Default for ValidatorConfig {
             accounts_hash_fault_injection_slots: 0,
             frozen_accounts: vec![],
             no_rocksdb_compaction: false,
+            rocksdb_compaction_interval: None,
+            rocksdb_max_compaction_jitter: None,
             accounts_hash_interval_slots: std::u64::MAX,
             max_genesis_archive_unpacked_size: MAX_GENESIS_ARCHIVE_UNPACKED_SIZE,
             wal_recovery_mode: None,
@@ -644,6 +648,8 @@ impl Validator {
                 accounts_hash_fault_injection_slots: config.accounts_hash_fault_injection_slots,
                 accounts_db_caching_enabled: config.accounts_db_caching_enabled,
                 test_hash_calculation: config.accounts_db_test_hash_calculation,
+                rocksdb_compaction_interval: config.rocksdb_compaction_interval,
+                rocksdb_max_compaction_jitter: config.rocksdb_compaction_interval,
             },
         );