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When phQueryMaster fails to initialize, the following errors in /opt/phoenix/log/phoenix.log may be encountered even after attempting to restart the process with phtools --start phQueryMaster:
2025-09-10T12:50:48.360368+07:00 mfusiem phQueryMaster[209086]: [PH_CLICKHOUSE_QUERY_REDIS_GET_FAILURE]:[eventSeverity]=PHL_ERROR,[procName]=phQueryMaster,[fileName]=phQueryMaster.cpp,[lineNumber]=390,[queryId]=,[phLogDetail]=Failed to get/hget jsonConfig from redis
2025-09-10T12:50:48.360382+07:00 mfusiem phQueryMaster[209086]: [PH_MODULE_INIT_FAILURE]:[eventSeverity]=PHL_ERROR,[procName]=phQueryMaster,[fileName]=phQueryMaster.cpp,[lineNumber]=796,[module]=phQueryMaster,[phLogDetail]=Module initialization failure
Follow the steps below to resolve the issue:
Verify Redis keys: On the Supervisor CLI, connect to Redis and check if the following keys return (nil) values:
redis-cli -p 6666 -a `phLicenseTool --showRedisPassword`
> get cache:ClickHouse:clickhouseConfig
> get cache:phDataManager:ingestionNodes
> get cache:phDataManager:ingestionNodesOnline
> get cache:phQueryMaster:queryNodesOnline
> get cache:phQueryMaster:queryNodes
If these keys are missing (showing as (nil)), proceed with the service restarts below.
Restart Redis service:
/opt/phoenix/redis/bin/redis_ops.sh stop
# Wait 2 minutes
/opt/phoenix/redis/bin/redis_ops.sh start
Restart phClickHouseMonitor service:
systemctl stop phClickHouseMonitor
# Wait 2 minutes
systemctl start phClickHouseMonitor
Test and deploy ClickHouse settings from the GUI:
- Navigate to Settings -> Database -> ClickHouse Config.
- Select Test and wait for the Test Successful message.
- Select Deploy and wait for the Save successful message.
Restart the phQueryMaster process:
phtools --STOP phQueryMaster
# Wait a couple of minutes
phtools --START phQueryMaster
After completing these steps, the phQueryMaster process should remain up and running.
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