Files
neon/docker-compose/compute_wrapper/shell/compute.sh
Suhas Thalanki 83069f6ca1 fix: terminate pgbouncer on compute suspend (#12153)
## Problem

PgBouncer does not terminate connections on a suspend:
https://github.com/neondatabase/cloud/issues/16282

## Summary of changes

1. Adds a pid file to store the pid of PgBouncer
2. Terminates connections on a compute suspend

---------

Co-authored-by: Alexey Kondratov <kondratov.aleksey@gmail.com>
2025-06-17 22:56:05 +00:00

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#!/usr/bin/env bash
set -eux
# Generate a random tenant or timeline ID
#
# Takes a variable name as argument. The result is stored in that variable.
generate_id() {
local -n resvar=${1}
printf -v resvar '%08x%08x%08x%08x' ${SRANDOM} ${SRANDOM} ${SRANDOM} ${SRANDOM}
}
PG_VERSION=${PG_VERSION:-14}
readonly CONFIG_FILE_ORG=/var/db/postgres/configs/config.json
readonly CONFIG_FILE=/tmp/config.json
# Test that the first library path that the dynamic loader looks in is the path
# that we use for custom compiled software
first_path="$(ldconfig --verbose 2>/dev/null \
| grep --invert-match ^$'\t' \
| cut --delimiter=: --fields=1 \
| head --lines=1)"
test "${first_path}" = '/usr/local/lib'
echo "Waiting pageserver become ready."
while ! nc -z pageserver 6400; do
sleep 1
done
echo "Page server is ready."
cp "${CONFIG_FILE_ORG}" "${CONFIG_FILE}"
if [[ -n "${TENANT_ID:-}" && -n "${TIMELINE_ID:-}" ]]; then
tenant_id=${TENANT_ID}
timeline_id=${TIMELINE_ID}
else
echo "Check if a tenant present"
PARAMS=(
-X GET
-H "Content-Type: application/json"
"http://pageserver:9898/v1/tenant"
)
tenant_id=$(curl "${PARAMS[@]}" | jq -r .[0].id)
if [[ -z "${tenant_id}" || "${tenant_id}" = null ]]; then
echo "Create a tenant"
generate_id tenant_id
PARAMS=(
-X PUT
-H "Content-Type: application/json"
-d "{\"mode\": \"AttachedSingle\", \"generation\": 1, \"tenant_conf\": {}}"
"http://pageserver:9898/v1/tenant/${tenant_id}/location_config"
)
result=$(curl "${PARAMS[@]}")
printf '%s\n' "${result}" | jq .
fi
echo "Check if a timeline present"
PARAMS=(
-X GET
-H "Content-Type: application/json"
"http://pageserver:9898/v1/tenant/${tenant_id}/timeline"
)
timeline_id=$(curl "${PARAMS[@]}" | jq -r .[0].timeline_id)
if [[ -z "${timeline_id}" || "${timeline_id}" = null ]]; then
generate_id timeline_id
PARAMS=(
-sbf
-X POST
-H "Content-Type: application/json"
-d "{\"new_timeline_id\": \"${timeline_id}\", \"pg_version\": ${PG_VERSION}}"
"http://pageserver:9898/v1/tenant/${tenant_id}/timeline/"
)
result=$(curl "${PARAMS[@]}")
printf '%s\n' "${result}" | jq .
fi
fi
if [[ ${PG_VERSION} -ge 17 ]]; then
ulid_extension=pgx_ulid
else
ulid_extension=ulid
fi
echo "Adding pgx_ulid"
shared_libraries=$(jq -r '.spec.cluster.settings[] | select(.name=="shared_preload_libraries").value' ${CONFIG_FILE})
sed -i "s|${shared_libraries}|${shared_libraries},${ulid_extension}|" ${CONFIG_FILE}
echo "Overwrite tenant id and timeline id in spec file"
sed -i "s|TENANT_ID|${tenant_id}|" ${CONFIG_FILE}
sed -i "s|TIMELINE_ID|${timeline_id}|" ${CONFIG_FILE}
cat ${CONFIG_FILE}
echo "Start compute node"
/usr/local/bin/compute_ctl --pgdata /var/db/postgres/compute \
-C "postgresql://cloud_admin@localhost:55433/postgres" \
-b /usr/local/bin/postgres \
--compute-id "compute-${RANDOM}" \
--config "${CONFIG_FILE}"
--dev