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I just created a new deployment of Stellar Core, Horizon-Ingest and Horizon nodes. My Core is at the top of the chain and fully synced. After confirming that it was indeed synced, I started the horizon-ingest, but the elder_ledger is basically the same value as the latest_ledger.

  "history.elder_ledger": {
    "value": 26516344
  },
  "history.latest_ledger": {
    "value": 26517212
  },

Why do I not have history, and how come I have to backfill to bring the elder_ledger to 1? This is a very time consuming process.

After running the backfill on a 4vCPU, 16GB mem machine for ~12h, the elder-ledger is only at 25843727.

Relevant Core config:

KNOWN_PEERS=["core-live-a.stellar.org", "core-live-b.stellar.org", "core-live-c.stellar.org", "ca.stellar.ibm.com", "uk.stellar.ibm.com", "no.stellar.ibm.com"]
BUCKET_DIR_PATH="/var/lib/stellar/buckets"
HTTP_PORT={{ stellar.core.config.http_port }}
PUBLIC_HTTP_PORT=true
HTTP_MAX_CLIENT=128
NETWORK_PASSPHRASE="Public Global Stellar Network ; September 2015"
PEER_PORT={{ stellar.core.config.peer_port }}
PREFERRED_PEERS_ONLY=false
{% if stellar.core.config.is_validator %}
NODE_IS_VALIDATOR=true
NODE_SEED="{{ stellar.core.config.node_seed }}"
{% else %}
NODE_IS_VALIDATOR=false
{% endif %}
CATCHUP_COMPLETE=true
KNOWN_CURSORS=["HORIZON"]
AUTOMATIC_MAINTENANCE_PERIOD=0
AUTOMATIC_MAINTENANCE_COUNT=0
MAX_CONCURRENT_SUBPROCESSES=24

Horizon config:

PER_HOUR_RATE_LIMIT=10800
INGEST=true

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