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install-reddit: Use netcat to determine if services are up.

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This is more robust than the previous method which slept for 30 seconds
and ended up being simultaneously optimistic and pessimistic.
This commit is contained in:
Neil Williams
2012-08-04 20:29:42 -07:00
parent 4a4543b38b
commit 5887e0898e
1 changed files with 15 additions and 3 deletions
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18
install-reddit.sh
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@@ -148,6 +148,21 @@ cassandra
haproxy
PACKAGES
###############################################################################
# Wait for all the services to be up
###############################################################################
# check each port for connectivity
echo "Waiting for services to be available, see source for port meanings..."
# 11211 - memcache
# 5432 - postgres
# 5672 - rabbitmq
# 9160 - cassandra
for port in 11211 5432 5672 9160; do
while ! nc -vz localhost $port; do
sleep 1
done
done
###############################################################################
# Install the reddit source repositories
###############################################################################
@@ -169,9 +184,6 @@ fi
###############################################################################
# Configure Cassandra
###############################################################################
# wait a bit to make sure all the servers come up
sleep 30
if ! echo | cassandra-cli -h localhost -k reddit > /dev/null 2>&1; then
echo "create keyspace reddit;" | cassandra-cli -h localhost -B
fi