3 # DO NOT EDIT - This file is being maintained by Chef
5 # Initialize timestamp with day of latest planet dump
6 # Setting to midnight ensures we get conistent data after first run
7 # osmosis --read-replication-interval-init
11 [ -f state-prev.txt ] && mv state-prev.txt state.txt
14 # Send output to the log
15 exec > /var/log/tile/replicate.log 2>&1
17 # Change to the replication state directory
20 # Install exit handler
23 # Read in initial state
29 # Work out the name of the next file
30 file="changes-${sequenceNumber}.osm.gz"
32 # Save state file so we can rollback if an error occurs
33 cp state.txt state-prev.txt
35 # Fetch the next set of changes
36 osmosis --read-replication-interval --simc --write-xml-change file="${file}" compressionMethod="gzip"
41 # Enable exit on error
44 # Remember the previous sequence number
45 prevSequenceNumber=$sequenceNumber
50 # Did we get any new data?
51 if [ "${sequenceNumber}" == "${prevSequenceNumber}" ]
53 # Log the lack of data
54 echo "No new data available. Sleeping..."
56 # Remove file, it will just be an empty changeset
59 # No need to rollback now
62 # Sleep for a short while
66 echo "Fetched new data from ${prevSequenceNumber} to ${sequenceNumber} into ${file}"
68 # Apply the changes to the database
69 <% if node[:tile][:node_file] -%>
70 osm2pgsql --slim --append --flat-nodes=<%= node[:tile][:node_file] %> ${file}
72 osm2pgsql --slim --append ${file}
75 # No need to rollback now
78 # Expire tiles which are touched by the changes
79 sudo -u www-data /usr/local/bin/expire-tiles ${file} > /dev/null 2>&1 &
82 # Delete old downloads
83 find . -name 'changes-*.gz' -mmin +300 -exec rm -f {} \;
85 # Disable exit on error
88 # Log our failure to fetch changes
89 echo "Failed to fetch changes - waiting a few minutes before retry"
91 # Wait five minutes and have another go