chore: add logging when compactor fetches partitions (#8176)

compactor_scheduler/src/local_scheduler/partitions_source/catalog_to_compact.rs

@@ -5,6 +5,7 @@ use backoff::{Backoff, BackoffConfig};
 use data_types::PartitionId;
 use iox_catalog::interface::Catalog;
 use iox_time::{Time, TimeProvider};
+use observability_deps::tracing::info;
 
 use crate::PartitionsSource;
 
@@ -92,6 +93,13 @@ impl PartitionsSource for CatalogToCompactPartitionsSource {
             }
             maximum_time = self.max_threshold.map(|max| self.time_provider.now() - max);
 
+            info!(
+                minimum_time = minimum_time.to_string().as_str(),
+                maximum_time = maximum_time.unwrap().to_string().as_str(),
+                last_maximum_time = (*last).to_string().as_str(),
+                "Fetching partitions to consider for compaction",
+            );
+
             // save the maximum time used in this query to self.last_maximum_time
             *last = maximum_time.unwrap_or(self.time_provider.now());
         }