[root@centos8-tst telegraf.d]# cat click.conf 
# Read metrics from one or many ClickHouse servers
[[inputs.clickhouse]]
  username = "default"
  servers  = ["http://192.168.109.103:8123"]
  auto_discovery = false

[root@centos8-tst telegraf.d]# telegraf --test --config click.conf 
2021-06-18T13:29:30Z I! Starting Telegraf 1.19.0
> clickhouse_tables,database=graphite,host=centos8-tst,source=192.168.109.103,table=graphite bytes=168207913i,parts=18i,rows=406317574i 1624022970000000000
> clickhouse_tables,database=graphite,host=centos8-tst,source=192.168.109.103,table=graphite_index bytes=286745i,parts=9i,rows=206843i 1624022970000000000
> clickhouse_tables,database=graphite,host=centos8-tst,source=192.168.109.103,table=graphite_tagged bytes=44882767i,parts=12i,rows=5019899i 1624022970000000000
> clickhouse_tables,database=statistics,host=centos8-tst,source=192.168.109.103,table=http_sms_cdr bytes=5266i,parts=1i,rows=100i 1624022970000000000
> clickhouse_tables,database=system,host=centos8-tst,source=192.168.109.103,table=asynchronous_metric_log bytes=5247i,parts=3i,rows=624i 1624022970000000000
> clickhouse_tables,database=system,host=centos8-tst,source=192.168.109.103,table=asynchronous_metric_log_0 bytes=17451554i,parts=11i,rows=7337554i 1624022970000000000
> clickhouse_tables,database=system,host=centos8-tst,source=192.168.109.103,table=metric_log bytes=172991i,parts=5i,rows=679i 1624022970000000000
> clickhouse_tables,database=system,host=centos8-tst,source=192.168.109.103,table=metric_log_0 bytes=875912046i,parts=13i,rows=8984691i 1624022970000000000
> clickhouse_tables,database=system,host=centos8-tst,source=192.168.109.103,table=trace_log bytes=5863784i,parts=12i,rows=79151i 1624022970000000000
panic: runtime error: index out of range [0] with length 0

goroutine 32 [running]:
github.com/influxdata/telegraf/plugins/inputs/clickhouse.(*ClickHouse).replicationQueue(0xc00086c6c0, 0x5648b38, 0xc000648500, 0xc00084ad80, 0x0, 0x0)
	/go/src/github.com/influxdata/telegraf/plugins/inputs/clickhouse/clickhouse.go:334 +0x333
github.com/influxdata/telegraf/plugins/inputs/clickhouse.(*ClickHouse).Gather(0xc00086c6c0, 0x5648b38, 0xc000648500, 0x0, 0x0)
	/go/src/github.com/influxdata/telegraf/plugins/inputs/clickhouse/clickhouse.go:212 +0x176
github.com/influxdata/telegraf/agent.(*Agent).testRunInputs.func2(0xc0004648b0, 0xc00013f8e0, 0xc000116b40, 0xc0006484c0, 0xc000114280)
	/go/src/github.com/influxdata/telegraf/agent/agent.go:403 +0x222
created by github.com/influxdata/telegraf/agent.(*Agent).testRunInputs
	/go/src/github.com/influxdata/telegraf/agent/agent.go:372 +0x109