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Fix replication again.

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Petru
2025-10-22 13:59:25 +01:00
parent ed06f07116
commit 17711da0b6
1 changed files with 7 additions and 10 deletions
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17
common/nfs-services-server.nix
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@@ -124,23 +124,20 @@ in
# Find previous snapshot on sender
PREV_LOCAL=$(ls -t /persist/services@* 2>/dev/null | grep -v "^$SNAPSHOT_PATH$" | head -1 || true)
# Try incremental send if we have a parent, fall back to full send if parent missing on receiver
# Try incremental send if we have a parent, fall back to full send if it fails
if [ -n "$PREV_LOCAL" ]; then
echo "Attempting incremental send from $(basename $PREV_LOCAL) to ${standby}"
# Capture both stdout and stderr to check for parent missing error
if OUTPUT=$(btrfs send -p "$PREV_LOCAL" "$SNAPSHOT_PATH" 2>&1 | \
ssh -i "$SSH_KEY" -o StrictHostKeyChecking=accept-new root@${standby} \
"btrfs receive /persist/services-standby" 2>&1); then
# Try incremental send, if it fails (e.g., parent missing on receiver), fall back to full
if btrfs send -p "$PREV_LOCAL" "$SNAPSHOT_PATH" | \
ssh -i "$SSH_KEY" -o StrictHostKeyChecking=accept-new root@${standby} \
"btrfs receive /persist/services-standby"; then
echo "Incremental send completed successfully"
elif echo "$OUTPUT" | grep -q "cannot find parent subvolume"; then
echo "Parent snapshot not found on receiver, falling back to full send"
else
echo "Incremental send failed (likely missing parent on receiver), falling back to full send"
btrfs send "$SNAPSHOT_PATH" | \
ssh -i "$SSH_KEY" -o StrictHostKeyChecking=accept-new root@${standby} \
"btrfs receive /persist/services-standby"
else
echo "ERROR: Incremental send failed: $OUTPUT"
exit 1
fi
else
# First snapshot, do full send