HI：
如果可以的话，帮忙在一个干净环境里重新编译测试看看。
1、go.mod是不是可以直接写在工程里？而不是用go mod init
2、默认情况下promethues的版本不存在prompb
3、需要依赖TDengine，但是TDengine, submodule clone问题，这里存在git clone权限不足
4、解决了prompb module问题，但是传入promb变量有问题，这里估计是prompb版本问题

谢谢。

是否能将blm作为Opentsdb和tdegine的转换器，将opentsdb数据格式转换后存入tdengine

Hi, @sangshuduo
I deployed an tdengine cluster in k8s followed TDengine-Operator, following is my tdengine pods and service, and it worked.

then i deployed bailongma

bailongma can not connect to taos. following is logs

and i can connect to tdengine by restful api in blm_prometheus container.

root@dcim:/opt/Bailongma# go mod tidy
go: finding module for package github.com/emirpasic/gods/sets/hashset
go: finding module for package github.com/prometheus/common/model
go: finding module for package github.com/prometheus/prometheus/prompb
go: finding module for package github.com/taosdata/driver-go/taosSql
go: finding module for package github.com/golang/snappy
go: finding module for package github.com/gogo/protobuf/proto
go: found github.com/gogo/protobuf/proto in github.com/gogo/protobuf v1.3.2
go: found github.com/golang/snappy in github.com/golang/snappy v0.0.4
go: found github.com/prometheus/common/model in github.com/prometheus/common v0.31.1
go: found github.com/prometheus/prometheus/prompb in github.com/prometheus/prometheus v2.5.0+incompatible
go: found github.com/emirpasic/gods/sets/hashset in github.com/emirpasic/gods v1.12.0
go: finding module for package github.com/grpc-ecosystem/grpc-gateway/utilities
go: finding module for package github.com/taosdata/driver-go/taosSql
go: finding module for package github.com/grpc-ecosystem/grpc-gateway/runtime
go: found github.com/grpc-ecosystem/grpc-gateway/runtime in github.com/grpc-ecosystem/grpc-gateway v1.16.0
go: found github.com/grpc-ecosystem/grpc-gateway/utilities in github.com/grpc-ecosystem/grpc-gateway v1.16.0
go: finding module for package github.com/taosdata/driver-go/taosSql
bailongma/v2/blm_prometheus imports
        github.com/taosdata/driver-go/taosSql: no matching versions for query "latest"

root@dcim:/opt/Bailongma/blm_prometheus# go get github.com/taosdata/driver-go/taosSql
go get github.com/taosdata/driver-go/taosSql: no matching versions for query "upgrade"

项目 github.com/taosdata/driver-go 已发布 v2 版本，详见：taosdata/driver-go

./blm_prometheus -port 8088 启动，终端直接报错
Get "http://172.23.11.4:6020/rest/sql": dial tcp 172.23.11.4:6020: connect: connection refused Get "http://172.23.11.4:6020/rest/sql": dial tcp 172.23.11.4:6020: connect: connection refused Get "http://172.23.11.4:6020/rest/sql": dial tcp 172.23.11.4:6020: connect: connection refused Get "http://172.23.11.4:6020/rest/sql": dial tcp 172.23.11.4:6020: connect: connection refused Get "http://172.23.11.4:6020/rest/sql": dial tcp 172.23.11.4:6020: connect: connection refused Get "http://172.23.11.4:6020/rest/sql": dial tcp 172.23.11.4:6020: connect: connection refused Get "http://172.23.11.4:6020/rest/sql": dial tcp 172.23.11.4:6020: connect: connection refused Get "http://172.23.11.4:6020/rest/sql": dial tcp 172.23.11.4:6020: connect: connection refused

查看taosd log 如下：
06/08 20:35:32.069964 00023174 MND ERROR msg:0x7f6e44000d60, app:0x66a table:0.prometheus.mysql_info_schema_table_size, failed to get table meta, table not exist 06/08 20:35:32.070581 00023175 MND ERROR msg:0x7f6e44000d60, app:0x66c table:0.prometheus.mysql_info_schema_table_size, failed to get table meta, table not exist 06/08 20:35:32.071263 00023174 MND ERROR msg:0x7f6e44000d60, app:0x66e table:0.prometheus.mysql_info_schema_table_size, failed to get table meta, table not exist 06/08 20:35:32.071779 00023175 MND ERROR msg:0x7f6e44000d60, app:0x670 table:0.prometheus.mysql_info_schema_table_size, failed to get table meta, table not exist 06/08 20:35:32.072324 00023174 MND ERROR msg:0x7f6e44000d60, app:0x672 table:0.prometheus.mysql_info_schema_table_size, failed to get table meta, table not exist 06/08 20:35:32.072893 00023175 MND ERROR msg:0x7f6e44000d60, app:0x674 table:0.prometheus.mysql_info_schema_table_size, failed to get table meta, table not exist 06/08 20:35:32.073430 00023174 MND ERROR msg:0x7f6e44000d60, app:0x676 table:0.prometheus.mysql_info_schema_table_size, failed to get table meta, table not exist 06/08 20:35:33.020489 00023174 MND ERROR msg:0x7f6e44000d60, app:0x678 table:0.prometheus.md5_ed032e52a5b5bb7a4b190fad66074a46, failed to get table meta, table not exist

文档说库和表会自动创建，但实际log显示都没创建

I want to rebuild the project as directed by the link：https://www.taosdata.com/cn/documentation/insert/#Prometheus直接写入
But I cannot go build, and get ERR:

execSql Error: syntax error near ")
" sqlcmd: create table if not exists MD5_648e4536f5d4184314287d187677867c using node_network_address_assign_type tags("623716d73194f57a558f0d1cb4964378",)

I modify the file "server.go" and add a line after line 529:

line 529: sqlcmd = sqlcmdhead + md5V2(tagHash) + ""," + sqlcmd
line 530: sqlcmd = strings.Replace(sqlcmd, ",)\n", ")\n", -1)

But it still cannot run normally after modification. Attached is the generated error log, please help update the code or indicate whether there is a problem in my configuration.
This is the table of project configuration:

blm_prometheus.log
prometheus.yml.log
server.go.log
taosdlog.0.log

由于网络等客观原因，部分用户自行编译存在难以克服的困难，如果能够提供支持主流操作系统平台的预编译二进制文件，会更好的推广taosd。期待答复

问题：prometheus 配置了BLM 没有数据写到TDengine，也没有报错
prometheus 版本：2.24.0
TDengine 版本：2.0.15

1、prometheus的启动日志：

2、prometheus的配置：

3、BIM服务也是正常的，在安装了prometheus的机器上，直接http请求：

4、BLM的启动参数，并且进程也在的：

5、然后TDengine的机器上查不到数据，连数据库都没有创建：

6、实际在grafana里面是有数据写入prometheus的：

github.com/taosdata/driver-go/taosSql

../../../../gowork/pkg/mod/github.com/taosdata/[email protected]/taosSql/result.go:21:10: fatal error: 'taos.h' file not found
#include <taos.h>
^~~~~~~~
1 error generated.

使用 bailongma master 以及 prometheus v2.23.0 编译，修改部分语法错误(prometheus v2.23.0同v2.5.0部分struct不兼容) 运行后，内存持续增长( v2.5.0 也有同样的问题，所以才升级到 v2.23.0 测试)

运行： go tool pprof 'http://localhost:8080/debug/pprof/heap'

File: blm_prometheus
Build ID: 1d27bd0ba96f37057ab7eb9aa9f5e516fd4b7cf2
Type: inuse_space
Time: Dec 24, 2020 at 5:31pm (CST)
Entering interactive mode (type "help" for commands, "o" for options)
(pprof) top
Showing nodes accounting for 1370.07MB, 97.38% of 1406.88MB total
Dropped 32 nodes (cum <= 7.03MB)
Showing top 10 nodes out of 31
flat flat% sum% cum cum%
690.07MB 49.05% 49.05% 1001.09MB 71.16% github.com/prometheus/prometheus/prompb.(*TimeSeries).Unmarshal
311.02MB 22.11% 71.16% 311.02MB 22.11% github.com/prometheus/prometheus/prompb.(*Label).Unmarshal
166.04MB 11.80% 82.96% 166.04MB 11.80% bufio.NewWriterSize (inline)
114.43MB 8.13% 91.09% 114.43MB 8.13% bufio.NewReaderSize
52.51MB 3.73% 94.82% 1053.59MB 74.89% github.com/prometheus/prometheus/prompb.(*WriteRequest).Unmarshal
9.50MB 0.68% 95.50% 9.50MB 0.68% runtime.malg
9.50MB 0.68% 96.18% 12.50MB 0.89% net/textproto.(*Reader).ReadMIMEHeader
7.50MB 0.53% 96.71% 92.10MB 6.55% net/http.(*conn).readRequest
7MB 0.5% 97.21% 27.50MB 1.95% net/http.readRequest
2.50MB 0.18% 97.38% 1056.09MB 75.07% main.main.func1

过一段时间后，运行

File: blm_prometheus
Build ID: 1d27bd0ba96f37057ab7eb9aa9f5e516fd4b7cf2
Type: inuse_space
Time: Dec 24, 2020 at 5:38pm (CST)
Entering interactive mode (type "help" for commands, "o" for options)
(pprof) top
Showing nodes accounting for 1743.78MB, 97.58% of 1787.07MB total
Dropped 34 nodes (cum <= 8.94MB)
Showing top 10 nodes out of 31
flat flat% sum% cum cum%
872.86MB 48.84% 48.84% 1262.88MB 70.67% github.com/prometheus/prometheus/prompb.(*TimeSeries).Unmarshal
390.02MB 21.82% 70.67% 390.02MB 21.82% github.com/prometheus/prometheus/prompb.(*Label).Unmarshal
212.18MB 11.87% 82.54% 212.18MB 11.87% bufio.NewWriterSize (inline)
147.56MB 8.26% 90.80% 147.56MB 8.26% bufio.NewReaderSize
66.65MB 3.73% 94.53% 1329.53MB 74.40% github.com/prometheus/prometheus/prompb.(*WriteRequest).Unmarshal
15MB 0.84% 95.37% 18MB 1.01% net/textproto.(*Reader).ReadMIMEHeader
14.51MB 0.81% 96.18% 14.51MB 0.81% runtime.malg
12MB 0.67% 96.85% 126.14MB 7.06% net/http.(*conn).readRequest
9MB 0.5% 97.35% 37.51MB 2.10% net/http.readRequest
4MB 0.22% 97.58% 1333.53MB 74.62% main.main.func1

系统运行环境：

Linux xxx 3.10.0-1127.19.1.el7.x86_64 #1 SMP Tue Aug 25 17:23:54 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
CentOS Linux release 7.9.2009 (Core)
go version go1.15.2 linux/amd64

现有的 tdengine/blm_prometheus镜像版本太老了，重新发布一个吧

prometheus 写入 TDEngine 后，原有几百个grafana 表达式都需要改成 类sql 形式，这个有工具可以处理吗，数量太多了

panic: Checktable error value type

goroutine 22 [running]:
main.SerilizeTDengine(0xc00059c5d0, 0xc0005956d0, 0xc, 0xc00059c600, 0x177289bb8b0, 0x736fdd, 0x8, 0xc000210000, 0xe, 0xc0005eb050, ...)
/root/blm_telegraf/server.go:346 +0xc6a
main.ProcessData(0xc0000f27e0, 0x1, 0x1, 0x736fdd, 0x8, 0xc000210000, 0xe, 0x0, 0x0)
/root/blm_telegraf/server.go:392 +0x1030
main.ProcessReq(0xc000580000, 0x4d2, 0x63f, 0xc000210000, 0xe, 0x0, 0x0)
/root/blm_telegraf/server.go:284 +0x3d5
main.NodeProcess(0x4, 0x8, 0x9)
/root/blm_telegraf/server.go:210 +0xce
created by main.main
/root/blm_telegraf/server.go:139 +0x164
host: tdengine:0 port: 10202 database: telegraf%