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optimize pgpool healthcheck (#64) 

* optimize pgpool helthcheck

avoid to get "SHOW pool_nodes;" twice

* Update 4/debian-10/rootfs/opt/bitnami/scripts/libpgpool.sh

Co-authored-by: Miguel Ángel Cabrera Miñagorri <devgorri@gmail.com>

Co-authored-by: Miguel Ángel Cabrera Miñagorri <devgorri@gmail.com>
This commit is contained in:
Sergii Zagrunnyi 2021-10-28 09:40:00 +03:00 committed by GitHub
parent 1d6c52f7d7
commit 2f9cd22396
1 changed files with 5 additions and 5 deletions
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10
bitnami/pgpool/4/debian-10/rootfs/opt/bitnami/scripts/libpgpool.sh
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@ -275,11 +275,11 @@ pgpool_attach_node() {
#########################
pgpool_healthcheck() {
info "Checking pgpool health..."
if PGCONNECT_TIMEOUT=15 PGPASSWORD="${PGPOOL_POSTGRES_PASSWORD}" psql -U "${PGPOOL_POSTGRES_USERNAME}" -d postgres \
-h "${PGPOOL_TMP_DIR}" -p "${PGPOOL_PORT_NUMBER}" -tA -c "SHOW pool_nodes;" >/dev/null; then
# look up backiends that are marked offline
for node in $(PGPASSWORD="${PGPOOL_POSTGRES_PASSWORD}" psql -U "${PGPOOL_POSTGRES_USERNAME}" -d postgres \
-h "${PGPOOL_TMP_DIR}" -p "${PGPOOL_PORT_NUMBER}" -tA -c "SHOW pool_nodes;" | grep "down" | tr -d ' ' ); do
local backends=$(PGCONNECT_TIMEOUT=15 PGPASSWORD="${PGPOOL_POSTGRES_PASSWORD}" psql -U "${PGPOOL_POSTGRES_USERNAME}" \
-d postgres -h "${PGPOOL_TMP_DIR}" -p "${PGPOOL_PORT_NUMBER}" -tA -c "SHOW pool_nodes;" | tr -d ' ')
if [[ "$backends" ]]; then
# look up backends that are marked offline
for node in $(echo "${backends}" | grep "down"); do
node_id=$(echo "${node}" | cut -d'|' -f1)
node_host=$(echo "${node}" | cut -d'|' -f2)
if [[ $(PGCONNECT_TIMEOUT=3 PGPASSWORD="${PGPOOL_POSTGRES_PASSWORD}" psql -U "${PGPOOL_POSTGRES_USERNAME}" \