Datapoints overwhelm the metrics queue and blow up ram usage. (#8272)

automerge

ledger/src/blockstore_processor.rs

@@ -13,7 +13,7 @@ use log::*;
 use rand::{seq::SliceRandom, thread_rng};
 use rayon::{prelude::*, ThreadPool};
 use solana_measure::{measure::Measure, thread_mem_usage};
-use solana_metrics::{datapoint, datapoint_error, inc_new_counter_debug};
+use solana_metrics::{datapoint_error, inc_new_counter_debug};
 use solana_rayon_threadlimit::get_thread_count;
 use solana_runtime::{
     bank::{Bank, TransactionBalancesSet, TransactionProcessResult, TransactionResults},
@@ -201,7 +201,7 @@ fn process_entries_with_callback(
             if batches.is_empty() {
                 // An entry has account lock conflicts with *itself*, which should not happen
                 // if generated by a properly functioning leader
-                datapoint!(
+                datapoint_error!(
                     "validator_process_entry_error",
                     (
                         "error",