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update pruning script

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12ww1160
2025-12-07 18:03:52 +01:00
parent c44902c7c3
commit 468f484544
1 changed files with 11 additions and 11 deletions
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22
templates/prune_blocks.erb
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@@ -7,40 +7,40 @@ source <%= @ps_env_file %>
LOG_FILE="<%= @ps_prune_log_file %>"
echo "$(date '+%Y-%m-%d %H:%M:%S') Starting prune run" >> "$LOG_FILE"
# Find all TSDB blocks
TSDB_DIR="/var/lib/prometheus"
# -----------------------
# Iterate TSDB blocks
# -----------------------
for block in "$TSDB_DIR"/*/; do
[[ -d "$block" ]] || continue
meta="$block/meta.json"
[[ -f "$meta" ]] || continue
# Get block min and max timestamps
min_time=$(jq -r '.minTime' "$meta")
max_time=$(jq -r '.maxTime' "$meta")
# Skip very recent blocks
# Skip last MIN_AGE_HOURS
block_age_hours=$(( ($(date +%s) - min_time/1000) / 3600 ))
if (( block_age_hours < MIN_AGE_HOURS + GRACE_HOURS )); then
echo "Skipping block $block (age ${block_age_hours}h)" >> "$LOG_FILE"
log "Keeping block $block (age ${block_age_hours}h)"
continue
fi
# Verify block is in PostgreSQL
# Check existence in PostgreSQL
check_sql="${CHECK_SQL_TEMPLATE//\{min\}/$min_time}"
check_sql="${check_sql//\{max\}/$max_time}"
exists=$(psql -h "$PGHOST" -p "$PGPORT" -U "$PGUSER" -d "$PGDATABASE" -t -c "$check_sql" | xargs)
exists=$(psql -h "$PGHOST" -p "$PGPORT" -U "$PGUSER" -d "$PGDATABASE" -t -c "$check_sql" | xargs || echo "0")
if [[ "$exists" != "1" ]]; then
echo "Block $block not found in PostgreSQL, skipping deletion" >> "$LOG_FILE"
log "Block $block not confirmed in PostgreSQL, skipping deletion"
continue
fi
# Dry-run or delete
# Delete block
if [[ "$DRY_RUN" == "true" ]]; then
echo "[DRY-RUN] Would delete block $block" >> "$LOG_FILE"
log "[DRY-RUN] Would delete block $block"
else
echo "Deleting block $block" >> "$LOG_FILE"
log "Deleting block $block"
rm -rf "$block"
fi
done