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check-seeds.sh
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check-seeds.sh
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#!/usr/bin/env bash
export LC_ALL=C.UTF-8
set -euxo pipefail
MAINNET="main"
TESTNET="test"
help_message() {
set +x
echo "Test that at least some threshold of seed nodes can be connected to."
echo "Usage: $0 <chain> <threshold>"
echo " Where <chain> is either '${MAINNET}' or '${TESTNET}'"
echo " Where <threshold> is an integer (0 - 100) representing the percentage of seeds that you expect to be online."
set -x
}
if [ "$#" = 1 ]; then
case $1 in
-h|--help)
help_message
exit 0
;;
"${MAINNET}"|"${TESTNET}")
# Fallthrough to get caught by the following appropriate check for the
# number of arguments, as this argument appears well formed.
;;
*)
echo "Unknown argument: $1"
help_message
exit 1
esac
fi
if [ "$#" -ne 2 ]; then
echo "Error: Expecting 2 arguments, got $#"
help_message
exit 2
fi
TOPLEVEL=$(git rev-parse --show-toplevel)
SEEDS_DIR="${TOPLEVEL}"/contrib/seeds
CHAIN="$1"
PERCENT_THRESHOLD="$2"
if [ "${CHAIN}" = "${MAINNET}" ]; then
TEST_SEEDS_ARGS=""
elif [ "${CHAIN}" = "${TESTNET}" ]; then
TEST_SEEDS_ARGS="--testnet"
else
echo "Error: Expected chain is '${MAINNET}' or '${TESTNET}'. Got: '${CHAIN}'"
exit 1
fi
SEED_NODES="${SEEDS_DIR}/nodes_${CHAIN}.txt"
TOTAL=$(wc -l < "${SEED_NODES}")
NUM=$("${SEEDS_DIR}"/test-seeds.sh ${TEST_SEEDS_ARGS} < "${SEED_NODES}" | wc -l)
PERCENT_NODES_UP=$((NUM * 100 / TOTAL))
echo "${PERCENT_NODES_UP}% of ${CHAIN}net seeds appear to be online."
if [ "${PERCENT_NODES_UP}" -lt "${PERCENT_THRESHOLD}" ]; then
echo "Error: The number of online ${CHAIN}net seed nodes is below the expected threshold of ${PERCENT_THRESHOLD}%"
exit 10
fi

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check-seeds.sh (1 KB)

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