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add database-aware MySQL pooling

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udo
2026-07-18 12:55:48 +00:00
parent 418c5812dc
commit 810c19b042
10 changed files with 83 additions and 31 deletions
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scripts/test_mysql_persistent_pool.sh
+36 -8
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@@ -18,10 +18,11 @@ cache_dir=""
http_host="${UCE_TEST_HTTP_HOST:-uce.openfu.com}"
test_user="uce_pool_$$"
test_database="uce_pool_$$"
test_database_other="uce_pool_other_$$"
test_password=$(printf '%s' "$test_name-$(date +%s%N)" | sha256sum | cut -c1-32)
cleanup() {
mariadb -e "DROP DATABASE IF EXISTS \`$test_database\`; DROP USER IF EXISTS '$test_user'@'127.0.0.1'" >/dev/null 2>&1 || true
mariadb -e "DROP DATABASE IF EXISTS \`$test_database\`; DROP DATABASE IF EXISTS \`$test_database_other\`; DROP USER IF EXISTS '$test_user'@'127.0.0.1'" >/dev/null 2>&1 || true
rm -rf "$source_dir"
if [[ -n "$cache_dir" ]]; then
rm -rf "$cache_dir"
@@ -30,14 +31,21 @@ cleanup() {
trap cleanup EXIT
mkdir -p "$source_dir"
cache_dir="$bin_directory$(realpath "$source_dir")"
mariadb -e "DROP DATABASE IF EXISTS \`$test_database\`; DROP USER IF EXISTS '$test_user'@'127.0.0.1'; CREATE DATABASE \`$test_database\`; CREATE USER '$test_user'@'127.0.0.1' IDENTIFIED BY '$test_password'; GRANT ALL ON \`$test_database\`.* TO '$test_user'@'127.0.0.1'"
mariadb -e "DROP DATABASE IF EXISTS \`$test_database\`; DROP DATABASE IF EXISTS \`$test_database_other\`; DROP USER IF EXISTS '$test_user'@'127.0.0.1'; CREATE DATABASE \`$test_database\`; CREATE DATABASE \`$test_database_other\`; CREATE USER '$test_user'@'127.0.0.1' IDENTIFIED BY '$test_password'; GRANT ALL ON \`$test_database\`.* TO '$test_user'@'127.0.0.1'; GRANT ALL ON \`$test_database_other\`.* TO '$test_user'@'127.0.0.1'; CREATE TABLE \`$test_database\`.pool_identity (label VARCHAR(16) NOT NULL); INSERT INTO \`$test_database\`.pool_identity VALUES ('primary'); CREATE TABLE \`$test_database_other\`.pool_identity (label VARCHAR(16) NOT NULL); INSERT INTO \`$test_database_other\`.pool_identity VALUES ('other')"
printf '%s\n' \
'RENDER(Request& context)' \
'{' \
" MySQL* db = mysql_connect(\"127.0.0.1\", \"$test_user\", \"$test_password\");" \
' if(db == 0 || mysql_error(db) != "") { context.set_status(500, "MySQL connect failed"); print("connect-failed"); return; }' \
" mysql_query(db, \"USE \\\`$test_database\\\`\");" \
" MySQL* db = mysql_connect(\"127.0.0.1\", \"$test_user\", \"$test_password\", \"$test_database\");" \
" MySQL* other = mysql_connect(\"127.0.0.1\", \"$test_user\", \"$test_password\", \"$test_database_other\");" \
" MySQL* unselected = mysql_connect(\"127.0.0.1\", \"$test_user\", \"$test_password\");" \
' if(db == 0 || other == 0 || unselected == 0 || !mysql_connected(db) || !mysql_connected(other) || !mysql_connected(unselected)) { context.set_status(500, "MySQL connect failed"); print("connect-failed"); return; }' \
' String primary_database, primary_label, other_database, other_label;' \
' mysql_query(db, "SELECT DATABASE() AS db, label FROM pool_identity").each([&](DValue row, String key) { primary_database = row["db"].to_string(); primary_label = row["label"].to_string(); });' \
' mysql_query(other, "SELECT DATABASE() AS db, label FROM pool_identity").each([&](DValue row, String key) { other_database = row["db"].to_string(); other_label = row["label"].to_string(); });' \
' String unselected_database;' \
' mysql_query(unselected, "SELECT DATABASE() AS db").each([&](DValue row, String key) { unselected_database = row["db"].to_string(); });' \
" bool database_clean = primary_database == \"$test_database\" && primary_label == \"primary\" && other_database == \"$test_database_other\" && other_label == \"other\" && unselected_database == \"\";" \
' DValue marker_rows = mysql_query(db, "SELECT @uce_pool_marker AS marker");' \
' String marker; marker_rows.each([&](DValue row, String key) { marker = row["marker"].to_string(); });' \
' bool marker_clean = marker == "";' \
@@ -45,19 +53,39 @@ printf '%s\n' \
' bool temp_clean = mysql_error(db) != "";' \
" mysql_query(db, \"SET @uce_pool_marker='dirty'\");" \
' mysql_query(db, "CREATE TEMPORARY TABLE uce_persistent_temp (id INT PRIMARY KEY)");' \
" mysql_query(db, \"USE \\\`$test_database_other\\\`\");" \
" mysql_query(other, \"USE \\\`$test_database\\\`\");" \
" mysql_query(unselected, \"USE \\\`$test_database\\\`\");" \
' DValue perf = request_perf();' \
' String source;' \
' perf["mysql_operations"].each([&](DValue operation, String key) { if(operation["op"].to_string() == "connect") source = operation["source"].to_string(); });' \
' print(perf["worker_pid"].to_string(), "|", source, "|", marker_clean ? "clean" : "dirty", "|", temp_clean ? "clean" : "dirty");' \
' perf["mysql_operations"].each([&](DValue operation, String key) { if(operation["op"].to_string() == "connect" && operation["source"].to_string() == "worker") source = "worker"; });' \
' print(perf["worker_pid"].to_string(), "|", source, "|", marker_clean ? "clean" : "dirty", "|", temp_clean ? "clean" : "dirty", "|", database_clean ? "clean" : "dirty");' \
' mysql_disconnect(unselected);' \
' mysql_disconnect(other);' \
' mysql_disconnect(db);' \
'}' >"$source_dir/test.uce"
printf '%s\n' \
'RENDER(Request& context)' \
'{' \
" MySQL* db = mysql_connect(\"127.0.0.1\", \"$test_user\", \"$test_password\", \"${test_database}_missing\");" \
' String error = mysql_error(db);' \
' print(!mysql_connected(db) && error != "" ? "database-selection-failed" : "database-selection-was-ignored");' \
' mysql_disconnect(db);' \
'}' >"$source_dir/failure.uce"
failure=$(curl -fsS --max-time 10 -H "Host: $http_host" "http://127.0.0.1/$test_name/failure.uce")
if [[ "$failure" != "database-selection-failed" ]]; then
echo "Unknown initial database did not surface a connection failure: $failure" >&2
exit 1
fi
reused=0
for _ in $(seq 1 160); do
output=$(curl -fsS --max-time 10 -H "Host: $http_host" "http://127.0.0.1/$test_name/test.uce")
if [[ "$output" == *"|worker|"* ]]; then
reused=$((reused + 1))
if [[ "$output" != *"|worker|clean|clean" ]]; then
if [[ "$output" != *"|worker|clean|clean|clean" ]]; then
echo "Persistent MySQL reuse leaked cross-request state: $output" >&2
exit 1
fi