docs: Add ingestion troubleshooting topic

docs/sources/configure/bp-configure.md

@@ -81,3 +81,50 @@ Loki and Promtail have flags which will dump the entire config object to stderr
 `-print-config-stderr` works well when invoking Loki from the command line, as you can get a quick output of the entire Loki configuration.
 
 `-log-config-reverse-order` is the flag Grafana runs Loki with in all our environments. The configuration entries are reversed, so that the order of the configuration reads correctly top to bottom when viewed in Grafana's Explore.
+
+## Recommended production limits
+
+```yaml
+limits_config:
+  # Rate limits
+  ingestion_rate_strategy: global
+  ingestion_rate_mb: 10
+  ingestion_burst_size_mb: 20
+  per_stream_rate_limit: 3MB
+  per_stream_rate_limit_burst: 15MB
+
+  # Stream limits
+  max_global_streams_per_user: 10000
+  max_streams_per_user: 0
+
+  # Validation
+  max_line_size: 256KB
+  max_line_size_truncate: false
+  max_label_name_length: 1024
+  max_label_value_length: 2048
+  max_label_names_per_series: 15
+
+  # Time constraints
+  reject_old_samples: true
+  reject_old_samples_max_age: 168h  # 7 days
+  creation_grace_period: 10m
+  unordered_writes: true
+```
+
+## Recommended Ingester configuration
+
+```yaml
+ingester:
+  # Chunk settings
+  chunk_idle_period: 30m
+  chunk_target_size: 1572864  # 1.5 MB
+  chunk_encoding: snappy
+  max_chunk_age: 2h
+
+  # WAL settings
+  wal:
+    enabled: true
+    dir: /loki/wal
+    checkpoint_duration: 5m
+    flush_on_shutdown: true
+```