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Live reloading entire config and bug fixes (#84)

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* Support reloading the entire config (including sharding logic) without restart.

* Fix bug incorrectly handing error reporting when the shard is set incorrectly via SET SHARD TO command.
selected wrong shard and the connection keep reporting fatal #80.

* Fix total_received and avg_recv admin database statistics.

* Enabling the query parser by default.

* More tests.
This commit is contained in:
Lev Kokotov
2022-06-24 14:52:38 -07:00
committed by GitHub
parent d865d9f9d8
commit b93303eb83
14 changed files with 393 additions and 188 deletions
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12
.circleci/run_tests.sh
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@@ -42,7 +42,15 @@ pgbench -U sharding_user -h 127.0.0.1 -p 6432 -t 500 -c 2 --protocol extended
psql -U sharding_user -h 127.0.0.1 -p 6432 -c 'COPY (SELECT * FROM pgbench_accounts LIMIT 15) TO STDOUT;' > /dev/null
# Query cancellation test
(psql -U sharding_user -h 127.0.0.1 -p 6432 -c 'SELECT pg_sleep(5)' || true) &
(psql -U sharding_user -h 127.0.0.1 -p 6432 -c 'SELECT pg_sleep(50)' || true) &
sleep 1
killall psql -s SIGINT
# Reload pool (closing unused server connections)
psql -U sharding_user -h 127.0.0.1 -p 6432 -d pgbouncer -c 'RELOAD'
(psql -U sharding_user -h 127.0.0.1 -p 6432 -c 'SELECT pg_sleep(50)' || true) &
sleep 1
killall psql -s SIGINT
# Sharding insert
@@ -94,7 +102,7 @@ toxiproxy-cli toxic remove --toxicName latency_downstream postgres_replica
start_pgcat "info"
# Test session mode (and config reload)
sed -i 's/pool_mode = "transaction"/pool_mode = "session"/' pgcat.toml
sed -i 's/pool_mode = "transaction"/pool_mode = "session"/' .circleci/pgcat.toml
# Reload config test
kill -SIGHUP $(pgrep pgcat)