【米尔MYC-JX8MPQ评测】+ 运行 TensorFlow Lite（CPU和NPU对比）

日前，米尔电子震撼发布MYD-JX8MPQC开发板，一经发布就备受瞩目。米尔这款开发板采用NXP第一款集成 NPU的高性能处理器i.MX 8M Plus芯片，面向AI场景，强大的边缘计算能力，NXP官方给这颗处理器的定位是“能够在工业和物联网等领域实现边缘端高级机器学习推理”。且看试用者详细介绍【米尔MYC-JX8MPQ评测】+ 运行 TensorFlow Lite（CPU和NPU对比），小编在此分享给大家。

【米尔MYC-JX8MPQ评测】+ 运行 TensorFlow Lite（CPU和NPU对比）—bloong

TensorFlowLite是一个开源软件库，专注于在移动设备和嵌入式设备上运行机器学习模型(可在http://www.tensorflow.org/lite上获得)。它支持具有低延迟和小二进制大小的设备上的机器学习推断。张量流Lite还支持使用安卓操作系统神经网络API(NNAPI)进行硬件加速。

我们试用一下TensorFlowLite，试用之前我们先介绍一位老前辈，当然也是BUG的出处。

Bug一词指在电脑系统或程序中，隐藏着的一些未被发现的缺陷或问题。但是Bug一词是如何由来的呢?这一切起源于1947年，从一只不小飞入Mark II计算机的飞虫说起。

扩展阅读：

1947年9月9日，当人们测试Mark II计算机时，它突然发生了故障。经过几个小时的检查后，工作人员发现了一只飞蛾被打死在面板F的第70号继电器中。当把这个飞蛾取出后，机器便恢复了正常。

当时为Mark II计算机工作的著名女科学家Grace Hopper将这只飞蛾粘帖到当天的工作手册中，并在上面加了一行注释，

“First actual case of bug being found”

当时的时间是15：45.随着这个故事的广为流传，越来越多的人开始使用Bug一词来指代计算机中的设计错误，并把Grace Hopper上登记的那只飞蛾看作是计算机里上第一个被记录在文档中的Bug.

这一称呼后来演变成表达缺陷漏洞的计算机专业术语，人们习惯地把排除程序故障叫做“debug”（除虫）。

今天我们测试TensorFlow的image classification的主角就是老前辈grace_hopper的相片。

1、在CPU上使用移动网络模型运行此示例，请使用以下命令：

root@myd-jx8mp:/usr/bin/tensorflow-lite-2.4.0/examples# ./label_image -m mobilenet_v1_1.0_224_quant.tflite -i grace_hopper.bmp -l labels.txt

运行结果如下

INFO: Loaded model mobilenet_v1_1.0_224_quant.tflite

INFO: resolved reporter

INFO: invoked

INFO: average time: 44.477 ms

INFO: 0.780392: 653 military uniform

INFO: 0.105882: 907 Windsor tie

INFO: 0.0156863: 458 bow tie

INFO: 0.0117647: 466 bulletproof vest

INFO: 0.00784314: 835 suit

2、要使用xnnpack委托在CPU上运行示例应用程序，请使用-x1开关

./label_image -m mobilenet_v1_1.0_224_quant.tflite -i grace_hopper.bmp -l labels.txt -x 1

运行结果如下

INFO: Loaded model mobilenet_v1_1.0_224_quant.tflite

INFO: resolved reporter

INFO: Created TensorFlow Lite XNNPACK delegate for CPU.

INFO: Applied XNNPACK delegate.

INFO: invoked

INFO: average time: 44.514 ms

INFO: 0.780392: 653 military uniform

INFO: 0.105882: 907 Windsor tie

INFO: 0.0156863: 458 bow tie

INFO: 0.0117647: 466 bulletproof vest

INFO: 0.00784314: 835 suit

3、若要在GPU/NPU硬件加速器上使用相同的模型运行该示例，请添加-a1命令行参数。要区分3DGPU和NPU，请使用USE_GPU_INFERENCE开关。例如，对于NPU硬件加速器，请使用以下命令：

USE_GPU_INFERENCE=0 ./label_image -m mobilenet_v1_1.0_224_quant.tflite -i grace_hopper.bmp -l labels.txt -a 1

运行结果如下

INFO: Loaded model mobilenet_v1_1.0_224_quant.tflite

INFO: resolved reporter

INFO: Created TensorFlow Lite delegate for NNAPI.

INFO: Applied NNAPI delegate.

INFO: invoked

INFO: average time: 2.773 ms

INFO: 0.768627: 653 military uniform

INFO: 0.105882: 907 Windsor tie

INFO: 0.0196078: 458 bow tie

INFO: 0.0117647: 466 bulletproof vest

INFO: 0.00784314: 835 suit

3、使用Python3运行

root@myd-jx8mp:/usr/bin/tensorflow-lite-2.4.0/examples# python3 label_image.py

运行结果

INFO: Created TensorFlow Lite delegate for NNAPI.

Applied NNAPI delegate.

Warm-up time: 6612.9 ms

Inference time: 3.0 ms

0.870588: military uniform

0.031373: Windsor tie

0.011765: mortarboard

0.007843: bow tie

0.007843: bulletproof vest

从运行结果来看同样的图片，NPU运行要比CPU快很多， NPU和CPU运算结果相差不大，NNAPI运行结果相似度更高。

【米尔MYC-JX8MPQ评测】运行TDengine—bloong

因为之前的项目上有用到涛思数据库，后面项目上可能也会用到数据库，所以在这个板子上运行试试看

TDengine 社区版是一开源版本，采用的是AGPL许可证，是一个处理中小规模的物联网数据平台。它具备高效处理物联网数据所需要的所有功能，包括:

类SQL查询语言来插入或查询数据

支持C/C++, Java(JDBC), Python, Go, RESTful, and Node.JS 等开发接口

通过TDengine Shell或Python/R/Matlab可做各种Ad Hoc查询分析

通过连续查询，支持基于滑动窗口的流式计算

引入超级表，让设备之间的数据聚合通过标签变得简单、灵活

内嵌消息队列，应用可订阅最新的数据

内嵌缓存机制，每台设备的最新状态或记录都可快速获得

无历史数据与实时数据之分，对应用而言，透明且完全一样

分布式架构，支持线性扩展，以保证任何规模的数据量都可以处理

支持多副本，无单点故障，以保证系统的高可用与高可靠

1 解压TDengine软件（TDengine的软件包我已经编译好了这里直接使用，如果哪位同学也想用的话私信邮箱给我）

root@myd-jx8mp:~/TDengine# ls -a

. .. bin cfg lib

2将lib目录下的所有文件拷贝到/usr/lib/目录下面

root@myd-jx8mp:~/TDengine# cp lib/* /usr/lib/

3运行taosd涛思服务端

root@myd-jx8mp:~/TDengine/bin# ./taosd

config file:/etc/taos/taos.cfg not found, all variables are set to default

09/20 11:11:18.975189 00002231 DND start to initialize TDengine

09/20 11:11:18.975378 00002231 DND step:dnode-tfile is initialized

09/20 11:11:18.975415 00002231 DND step:dnode-rpc is initialized

09/20 11:11:18.976140 00002231 UTL localEp is: myd-jx8mp:6030

09/20 11:11:18.976973 00002231 UTL WARN timezone not configured, set to system default:Universal (UTC, +0000)

09/20 11:11:18.977024 00002231 UTL WARN locale not configured, set to system default:C

09/20 11:11:18.977050 00002231 UTL WARN can't get locale and charset from system, set it to UTF-8

09/20 1118.983835 00002231 UTL check global cfg completed

09/20 1118.983888 00002231 UTL ==================================

09/20 1118.983909 00002231 UTL taos config & system info:

09/20 1118.983925 00002231 UTL ==================================

09/20 1118.983943 00002231 UTL firstEp: myd-jx8mp:6030

09/20 1118.983959 00002231 UTL secondEp: myd-jx8mp:6030

09/20 1118.983976 00002231 UTL fqdn: myd-jx8mp

09/20 1118.983993 00002231 UTL serverPort: 6030

09/20 1118.984011 00002231 UTL configDir: /etc/taos

09/20 1118.984027 00002231 UTL logDir: /var/volatile/log/taos

09/20 1118.984044 00002231 UTL scriptDir: /etc/taos

09/20 1118.984060 00002231 UTL arbitrator:

09/20 1118.984078 00002231 UTL numOfThreadsPerCore: 1.000000

09/20 1118.984101 00002231 UTL numOfCommitThreads: 4

09/20 1118.984118 00002231 UTL ratioOfQueryCores: 1.000000

09/20 1118.984136 00002231 UTL maxNumOfDistinctRes: 10000000

09/20 1118.984153 00002231 UTL numOfMnodes: 1

09/20 1118.984169 00002231 UTL vnodeBak: 1

09/20 1118.984192 00002231 UTL telemetryReporting: 1

09/20 1118.984218 00002231 UTL dnodeNopLoop: 0

09/20 1118.984235 00002231 UTL balance: 1

09/20 1118.984251 00002231 UTL balanceInterval: 300

09/20 1118.984267 00002231 UTL offlineInterval: 3

09/20 1118.984284 00002231 UTL role: 0

09/20 1118.984300 00002231 UTL maxTmrCtrl: 512

09/20 1118.984321 00002231 UTL monitorInterval: 30(s)

09/20 1118.984342 00002231 UTL monitorReplica: 1

09/20 1118.984362 00002231 UTL offlineThreshold: 864000(s)

09/20 1118.984382 00002231 UTL rpcTimer: 300(ms)

09/20 1118.984402 00002231 UTL rpcMaxTime: 600(s)

09/20 1118.984423 00002231 UTL rpcForceTcp: 0

09/20 1118.984443 00002231 UTL statusInterval: 1(s)

09/20 1118.984476 00002231 UTL shellActivityTimer: 3(s)

09/20 1118.984505 00002231 UTL minSlidingTime: 10(ms)

09/20 1118.984538 00002231 UTL minIntervalTime: 1(ms)

09/20 1118.984558 00002231 UTL maxStreamCompDelay: 20000(ms)

09/20 1118.984579 00002231 UTL maxFirstStreamCompDelay:10000(ms)

09/20 1118.984617 00002231 UTL retryStreamCompDelay: 1800000(ms)

09/20 1118.984643 00002231 UTL streamCompDelayRatio: 0.100000

09/20 1118.984670 00002231 UTL maxVgroupsPerDb: 0

09/20 1118.984691 00002231 UTL maxTablesPerVnode: 1000000

09/20 1118.984712 00002231 UTL minTablesPerVnode: 1000

09/20 1118.984732 00002231 UTL tableIncStepPerVnode: 1000

09/20 1118.984752 00002231 UTL cache: 16(Mb)

09/20 1118.984772 00002231 UTL blocks: 6

09/20 1118.984793 00002231 UTL days: 10

09/20 1118.984813 00002231 UTL keep: 3650

09/20 1118.984833 00002231 UTL minRows: 100

09/20 1118.984853 00002231 UTL maxRows: 4096

09/20 1118.984874 00002231 UTL precision: 0

09/20 1118.984898 00002231 UTL comp: 2

09/20 1118.984924 00002231 UTL walLevel: 1

09/20 1118.984939 00002231 UTL fsync: 3000

09/20 1118.984964 00002231 UTL replica: 1

09/20 1118.984979 00002231 UTL partitions: 4

09/20 1118.984996 00002231 UTL quorum: 1

09/20 1118.985011 00002231 UTL update: 0

09/20 1118.985025 00002231 UTL cachelast: 0

09/20 1118.985041 00002231 UTL compressMsgSize: 524288

09/20 1118.985056 00002231 UTL compressColData: -1

09/20 1118.985071 00002231 UTL maxSQLLength: 1048576(byte)

09/20 1118.985088 00002231 UTL maxWildCardsLength: 100(byte)

09/20 1118.985103 00002231 UTL maxRegexStringLen: 128(byte)

09/20 1118.985118 00002231 UTL maxNumOfOrderedRes: 1000000

09/20 1118.985133 00002231 UTL queryBufferSize: -1(byte)

09/20 1118.985148 00002231 UTL retrieveBlockingModel: 0

09/20 1118.985163 00002231 UTL keepColumnName: 0

09/20 1118.985178 00002231 UTL timezone: Universal (UTC, +0000)

09/20 1118.985194 00002231 UTL locale: C

09/20 1118.985209 00002231 UTL charset: UTF-8

09/20 1118.985224 00002231 UTL maxShellConns: 50000

09/20 1118.985237 00002231 UTL maxConnections: 5000

09/20 1118.985255 00002231 UTL minimalLogDirGB: 1.000000(GB)

09/20 1118.985273 00002231 UTL minimalTmpDirGB: 1.000000(GB)

09/20 1118.985290 00002231 UTL minimalDataDirGB: 2.000000(GB)

09/20 1118.985307 00002231 UTL mnodeEqualVnodeNum: 4

09/20 1118.985322 00002231 UTL flowctrl: 1

09/20 1118.985335 00002231 UTL slaveQuery: 1

09/20 1118.985351 00002231 UTL adjustMaster: 1

09/20 1118.985366 00002231 UTL http: 1

09/20 1118.985381 00002231 UTL mqtt: 0

09/20 1118.985396 00002231 UTL monitor: 1

09/20 1118.985411 00002231 UTL stream: 1

09/20 1118.985426 00002231 UTL topicBinaryLen: 16000

09/20 1118.985441 00002231 UTL httpEnableRecordSql: 0

09/20 1118.985456 00002231 UTL telegrafUseFieldNum: 0

09/20 1118.985471 00002231 UTL httpMaxThreads: 2

09/20 1118.985486 00002231 UTL restfulRowLimit: 10240

09/20 1118.985538 00002231 UTL httpDbNameMandatory: 0

09/20 1118.985555 00002231 UTL httpKeepAlive: 30000

09/20 1118.985571 00002231 UTL numOfLogLines: 10000000

09/20 1118.985584 00002231 UTL logKeepDays: 0

09/20 1118.985596 00002231 UTL asyncLog: 1

09/20 1118.985609 00002231 UTL debugFlag: 0

09/20 1118.985621 00002231 UTL mDebugFlag: 131

09/20 1118.985634 00002231 UTL dDebugFlag: 135

09/20 1118.985648 00002231 UTL sDebugFlag: 135

09/20 1118.985660 00002231 UTL wDebugFlag: 135

09/20 1118.985672 00002231 UTL sdbDebugFlag: 131

09/20 1118.985696 00002231 UTL rpcDebugFlag: 131

09/20 1118.985710 00002231 UTL tmrDebugFlag: 131

09/20 1118.985723 00002231 UTL cDebugFlag: 131

09/20 1118.985736 00002231 UTL jniDebugFlag: 131

09/20 1118.985749 00002231 UTL odbcDebugFlag: 131

09/20 1118.985761 00002231 UTL uDebugFlag: 131

09/20 1118.985773 00002231 UTL httpDebugFlag: 131

09/20 1118.985787 00002231 UTL mqttDebugFlag: 131

09/20 1118.985799 00002231 UTL monDebugFlag: 131

09/20 1118.985811 00002231 UTL qDebugFlag: 131

09/20 1118.985825 00002231 UTL vDebugFlag: 135

09/20 1118.985837 00002231 UTL tsdbDebugFlag: 131

09/20 1118.985850 00002231 UTL cqDebugFlag: 131

09/20 1118.985862 00002231 UTL enableRecordSql: 0

09/20 1118.985876 00002231 UTL enableCoreFile: 0

09/20 1118.985892 00002231 UTL gitinfo: ac6c719aef7e9a9ae791b1dde0002ff7c7c3cd28

09/20 1118.985911 00002231 UTL gitinfoOfInternal: ac6c719aef7e9a9ae791b1dde0002ff7c7c3cd28

09/20 1118.985924 00002231 UTL buildinfo: Built at 2022-02-14 1008

09/20 1118.985937 00002231 UTL version: 2.4.0.0

09/20 1118.985968 00002231 UTL maxBinaryDisplayWidth: 30

09/20 1118.985980 00002231 UTL tempDir: /tmp/

09/20 1118.985993 00002231 UTL tsdbMetaCompactRatio: 0

09/20 1118.986005 00002231 UTL deadLockKillQuery: 1

09/20 1118.986018 00002231 UTL clientMerge: 0

09/20 1118.986030 00002231 UTL defaultJSONStrType: nchar

09/20 1118.986042 00002231 UTL smlChildTableName:

09/20 1118.986055 00002231 UTL smlTagNullName: _tag_null

09/20 1118.986068 00002231 UTL walFlushSize: 1024(Mb)

09/20 1118.986081 00002231 UTL shortcutFlag: 0

09/20 1118.986098 00002231 UTL os pageSize: 4096(KB)

09/20 1118.986110 00002231 UTL os openMax: 1024

09/20 1118.986122 00002231 UTL os streamMax: 16

09/20 1118.986133 00002231 UTL os numOfCores: 4

09/20 1118.986145 00002231 UTL os totalMemory: 2921(MB)

09/20 1118.986164 00002231 UTL os sysname: Linux

09/20 1118.986177 00002231 UTL os nodename: myd-jx8mp

09/20 1118.986189 00002231 UTL os release: 5.10.9-1.0.0+g68232600d8b7

09/20 1118.986205 00002231 UTL os version: #1 SMP PREEMPT Tue Nov 23 0844 UTC 2021

09/20 1118.986221 00002231 UTL os machine: aarch64

09/20 1118.986238 00002231 UTL dataDir: /var/lib/taos

09/20 1118.986255 00002231 UTL ==================================

09/20 1118.986268 00002231 DND step:dnode-globalcfg is initialized

09/20 1118.986407 00002231 TFS disk /var/lib/taos is mounted to tier level 0 id 0

09/20 1118.986761 00002231 UTL ==================================

09/20 1118.986792 00002231 UTL os totalDisk: 6.668533(GB)

09/20 1118.986812 00002231 UTL os usedDisk: 3.161125(GB)

09/20 1118.986826 00002231 UTL os availDisk: 3.133099(GB)

09/20 1118.986839 00002231 UTL ==================================

09/20 1118.986851 00002231 DND dnode storage is initialized at /var/lib/taos/dnode

09/20 1118.986864 00002231 DND step:dnode-storage is initialized

09/20 1118.987011 00002231 DND read file /var/lib/taos/dnode/dnodeCfg.json successed

09/20 1118.987037 00002231 DND dnodeId is set to 1, clusterId is set to 7ebdeb06-4043-4b4f-b20e-44c8043bdcd6

09/20 1118.990881 00002231 DND successed to write /var/lib/taos/dnode/dnodeCfg.json

09/20 1118.990939 00002231 DND dnode cfg is initialized

09/20 1118.990952 00002231 DND step:dnode-cfg is initialized

09/20 1118.991075 00002231 DND read file /var/lib/taos/dnode/dnodeEps.json successed

09/20 1118.991138 00002231 DND dnode eps is initialized

09/20 1118.991161 00002231 DND step:dnode-eps is initialized

09/20 1118.991225 00002231 DND read file /var/lib/taos/dnode/mnodeEpSet.json successed

09/20 1118.991243 00002231 DND print minfos, mnodeNum:1 inUse:0

09/20 1118.991257 00002231 DND mnode index:1, myd-jx8mp:6030

09/20 1118.991283 00002231 DND print minfos, mnodeNum:1 inUse:0

09/20 1118.991299 00002231 DND mnode index:1, myd-jx8mp:6030

09/20 1118.991314 00002231 DND dnode minfos is initialized

09/20 1118.991331 00002231 DND step:dnode-minfos is initialized

09/20 1118.991518 00002231 WAL wal module is initialized, rsetId:3

09/20 1118.991538 00002231 DND step:dnode-wal is initialized

09/20 1118.991773 00002231 DND step:dnode-sync is initialized

09/20 1118.991911 00002231 DND dnode check is initialized

09/20 1118.991931 00002231 DND step:dnode-check is initialized

09/20 1118.991948 00002231 UTL worker:vquery is initialized, min:4 max:4

09/20 1118.991962 00002231 UTL worker:vfetch is initialized, min:4 max:4

09/20 1118.991975 00002231 DND step:dnode-vread is initialized

09/20 1118.991990 00002231 DND dnode vwrite is initialized, max worker 4

09/20 1118.992002 00002231 DND step:dnode-vwrite is initialized

09/20 1118.992141 00002231 DND step:vnode-backup is initialized

09/20 1118.992232 00002231 DND step:vnode-worker is initialized

09/20 1118.992250 00002231 DND step:vnode-write is initialized

09/20 1118.992263 00002231 DND step:vnode-read is initialized

09/20 1118.992283 00002231 DND step:vnode-hash is initialized

09/20 1118.992537 00002231 DND step:tsdb-queue is initialized

09/20 1118.992566 00002231 UTL worker:vmgmt is initialized, min:1 max:1

09/20 1118.992648 00002231 DND dnode vmgmt is initialized

09/20 1118.992667 00002231 DND step:dnode-vmgmt is initialized

09/20 1118.992700 00002231 DND step:dnode-mread is initialized

09/20 1118.992727 00002231 DND step:dnode-mwrite is initialized

09/20 1118.992753 00002231 DND step:dnode-mpeer is initialized

09/20 1118.997630 00002231 DND dnode inter-dnodes rpc client is initialized

09/20 1118.997692 00002231 DND step:dnode-client is initialized

09/20 1118.999606 00002231 DND dnode inter-dnodes RPC server is initialized

09/20 1118.999672 00002231 DND step:dnode-server is initialized

09/20 1118.999797 00002231 DND start 4 threads to open 1 vnodes

09/20 1119.000450 00002249 VND vgId:2, load vnode cfg successfully, replcia:1

09/20 1119.000482 00002249 VND vgId:2, dnode:1, myd-jx8mp:6040

09/20 1119.000560 00002249 VND vgId:2, read /var/lib/taos/vnode/vnode2/version.json successfully, fver:59

09/20 1119.003539 00002249 VND vgId:2, sync role changed from offline to master

09/20 1119.003672 00002231 DND there are total vnodes:1, opened:1

09/20 1119.003702 00002231 DND step:dnode-vnodes is initialized

09/20 1119.003781 00002231 MND starting to initialize mnode ...

09/20 1119.004116 00002231 DND step:sdbref is initialized

09/20 1119.004317 00002231 DND step:profile is initialized

09/20 1119.004341 00002231 DND step:cluster is initialized

09/20 1119.004359 00002231 DND step:accts is initialized

09/20 1119.004379 00002231 DND step:users is initialized

09/20 1119.004406 00002231 DND step:funcs is initialized

09/20 1119.004425 00002231 DND step:dnodes is initialized

09/20 1119.004451 00002231 DND step:dbs is initialized

09/20 1119.004474 00002231 DND step:vgroups is initialized

09/20 1119.005423 00002231 DND step:tables is initialized

09/20 1119.005465 00002231 DND step:mnodes is initialized

09/20 1119.005708 00002231 MND vgId:1, sdb write is opened

09/20 1119.005781 00002231 SDB vgId:1, open sdb wal for restore

09/20 1119.005887 00002231 WAL vgId:1, file:/var/lib/taos/mnode/wal/wal0, will be restored

09/20 1119.006093 00002231 MND dnode:1, fqdn:myd-jx8mp ep6030 port:6030 is created

09/20 1119.006138 00002231 MND mnode:1, fqdn:myd-jx8mp ep6030 port:6030 is created

09/20 1119.006997 00002231 WAL vgId:1, file:/var/lib/taos/mnode/wal/wal0, restore success, wver:28

09/20 1119.007141 00002231 SDB vgId:1, sdb wal load success

09/20 1119.007165 00002231 SDB vgId:1, sdb start to check for integrity

09/20 1119.007192 00002231 SDB vgId:1, sdb:cluster is checked, rows:1

09/20 1119.007220 00002231 SDB vgId:1, sdb:dnodes is checked, rows:1

09/20 1119.007243 00002231 MND vgId:1, update mnodes epSet, numOfMnodes:1

09/20 1119.007270 00002231 MND vgId:1, mnodes epSet is set, num:1 inUse:0

09/20 1119.007294 00002231 MND vgId:1, mnode:1, fqdn:myd-jx8mp shell:6030 peer:6035

09/20 1119.007318 00002231 SDB vgId:1, sdb:mnodes is checked, rows:1

09/20 1119.007339 00002231 SDB vgId:1, sdb:accounts is checked, rows:1

09/20 1119.007359 00002231 SDB vgId:1, sdb:users is checked, rows:3

09/20 1119.007379 00002231 SDB vgId:1, sdb:dbs is checked, rows:1

09/20 1119.007399 00002231 SDB vgId:1, sdb:vgroups is checked, rows:1

09/20 1119.007419 00002231 SDB vgId:1, sdb:stables is checked, rows:7

09/20 1119.007439 00002231 SDB vgId:1, sdb:ctables is checked, rows:11

09/20 1119.007460 00002231 MND dnode first deploy, func restored.

09/20 1119.007479 00002231 SDB vgId:1, sdb:funcs is checked, rows:0

09/20 1119.007499 00002231 SDB vgId:1, sdb is restored, mver:28 rows:27 tables:10

09/20 1119.007529 00002231 DND step:sdb is initialized

09/20 1119.007690 00002231 MND dnode:1 set access:0 to 0

09/20 1119.007719 00002231 DND step:balance is initialized

09/20 1119.007933 00002231 DND step:show is initialized

09/20 1119.007958 00002231 MND mnode is initialized successfully

09/20 1119.007986 00002231 SDB vgId:1, work as mnode, replica:1

09/20 1119.008007 00002231 SDB vgId:1, mnode:1, myd-jx8mp:6040

09/20 1119.008146 00002231 SDB vgId:1, mnode role changed from master to master

09/20 1119.008173 00002231 SDB vgId:1, update mnodes role, replica:1

09/20 1119.008197 00002231 SDB vgId:1, mnode:1, role:master

09/20 1119.008221 00002231 MND vgId:1, update mnodes epSet, numOfMnodes:1

09/20 1119.008247 00002231 MND vgId:1, mnodes epSet is set, num:1 inUse:0

09/20 1119.008270 00002231 MND vgId:1, mnode:1, fqdn:myd-jx8mp shell:6030 peer:6035

09/20 1119.008609 00002231 DND dnode modules is initialized

09/20 1119.008635 00002231 HTP start http server ...

09/20 1119.008807 00002231 HTP http result queue is opened

09/20 1119.009519 00002271 HTP http server init success at 6041

09/20 1119.010276 00002231 MON monitor module start

09/20 1119.010315 00002231 DND step:dnode-modules is initialized

09/20 1119.013049 00002231 DND dnode shell rpc server is initialized

09/20 1119.013112 00002231 DND step:dnode-shell is initialized

09/20 1119.013145 00002231 DND dnode status timer is initialized

09/20 1119.013166 00002231 DND step:dnode-statustmr is initialized

09/20 1119.013286 00002231 DND dnode telemetry is initialized

09/20 1119.013316 00002231 DND step:dnode-telemetry is initialized

09/20 1119.018904 00002231 DND step:dnode-script is initialized

09/20 1119.018979 00002231 DND step:dnode-grant is initialized

09/20 1119.018999 00002231 DND TDengine is initialized successfully

09/20 1119.517104 00002263 MND dnode:1, from offline to online

09/20 1120.012162 00002262 MND user:monitor login from 127.0.0.1, result:success

4 另起一个终端运行taos涛思客户端

root@myd-jx8mp:~/TDengine/bin# ./taos

Welcome to the TDengine shell from Linux, Client Version:2.4.0.0

Copyright (c) 2020 by TAOS Data, Inc. All rights reserved.

config file:/etc/taos/taos.cfg not found, all variables are set to default

taos>

5 查看数据库

taos> show databases;

name | created_time | ntables | vgroups | replica | quorum | days | keep | cache(MB) | blocks | minrows | maxrows | wallevel | fsync | comp | cachelast | precision | update | status |

====================================================================================================================================================================================================================================================================================

log | 2020-09-20 11:02:24.386 | 11 | 1 | 1 | 1 | 10 | 30 | 1 | 3 | 100 | 4096 | 1 | 3000 | 2 | 0 | us | 0 | ready |

Query OK, 1 row(s) in set (0.003743s)

taos>

至此涛思数据库在MYC-JX8MP上运行起来了