taosdata
windows client error：failed to set up connection(Unable to establish connection)
服务器：社区版2.6.0.6版本，3台linux虚拟机部署的集群，配置了各自fqdn，时区Asia/Shanghai、本地化en_us.UTF-8、字符集UTF-8。群集运行正常。 windows客户端：win10，客户端2.6.0.6，配置了hosts文件fqdn相应配置，时区、本地化、字符集都与服务端匹配。 现象：show databases; show dnodes;show mnodes; 都能正常执行，但只要涉及insert与select之类的语句，执行超时。但insert与select在服务端的taosAdapter里可以执行，使用restful也可以执行。 客户端日志如下：
new log file
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07/11 15:36:35.059000 00008348 UTL localEp is: DESKTOP-F3NE697:6030
07/11 15:36:35.113000 00008348 UTL ERROR Invalid locale:en_US.UTF-8, please set the valid locale in config file
07/11 15:36:35.113000 00008348 UTL timezone is set to UTC-8 by config file
07/11 15:36:35.113000 00008348 UTL timezone format changed to (UTC, +0800)
07/11 15:36:35.113000 00008348 UTL check global cfg completed
07/11 15:36:35.113000 00008348 UTL ==================================
07/11 15:36:35.113000 00008348 UTL taos config & system info:
07/11 15:36:35.113000 00008348 UTL ==================================
07/11 15:36:35.113000 00008348 UTL firstEp: tdnode1.xxx.com:6030
07/11 15:36:35.113000 00008348 UTL secondEp: DESKTOP-F3NE697:6030
07/11 15:36:35.113000 00008348 UTL fqdn: DESKTOP-F3NE697
07/11 15:36:35.113000 00008348 UTL serverPort: 6030
07/11 15:36:35.113000 00008348 UTL configDir: C:\TDengine\cfg
07/11 15:36:35.113000 00008348 UTL logDir: C:\TDengine\log
07/11 15:36:35.113000 00008348 UTL scriptDir: C:/TDengine/script
07/11 15:36:35.113000 00008348 UTL arbitrator:
07/11 15:36:35.113000 00008348 UTL numOfThreadsPerCore: 1.000000
07/11 15:36:35.113000 00008348 UTL maxNumOfDistinctRes: 10000000
07/11 15:36:35.113000 00008348 UTL rpcTimer: 300(ms)
07/11 15:36:35.113000 00008348 UTL rpcMaxTime: 600(s)
07/11 15:36:35.113000 00008348 UTL rpcForceTcp: 0
07/11 15:36:35.113000 00008348 UTL shellActivityTimer: 3(s)
07/11 15:36:35.113000 00008348 UTL compressMsgSize: 524288
07/11 15:36:35.113000 00008348 UTL compressColData: -1
07/11 15:36:35.113000 00008348 UTL maxSQLLength: 1048576(byte)
07/11 15:36:35.113000 00008348 UTL maxWildCardsLength: 100(byte)
07/11 15:36:35.113000 00008348 UTL maxRegexStringLen: 128(byte)
07/11 15:36:35.113000 00008348 UTL maxNumOfOrderedRes: 1000000
07/11 15:36:35.113000 00008348 UTL keepColumnName: 1
07/11 15:36:35.113000 00008348 UTL timezone: (UTC, +0800)
07/11 15:36:35.113000 00008348 UTL locale: en_US.UTF-8
07/11 15:36:35.113000 00008348 UTL charset: UTF-8
07/11 15:36:35.113000 00008348 UTL numOfLogLines: 10000000
07/11 15:36:35.113000 00008348 UTL logKeepDays: 0
07/11 15:36:35.113000 00008348 UTL asyncLog: 1
07/11 15:36:35.113000 00008348 UTL debugFlag: 0
07/11 15:36:35.113000 00008348 UTL rpcDebugFlag: 131
07/11 15:36:35.113000 00008348 UTL tmrDebugFlag: 131
07/11 15:36:35.113000 00008348 UTL cDebugFlag: 131
07/11 15:36:35.113000 00008348 UTL jniDebugFlag: 131
07/11 15:36:35.113000 00008348 UTL odbcDebugFlag: 131
07/11 15:36:35.113000 00008348 UTL uDebugFlag: 131
07/11 15:36:35.113000 00008348 UTL qDebugFlag: 131
07/11 15:36:35.113000 00008348 UTL tsdbDebugFlag: 131
07/11 15:36:35.113000 00008348 UTL gitinfo: db5a04e113cf85c40a52489e558dbdfa4dbb11a4
07/11 15:36:35.113000 00008348 UTL gitinfoOfInternal: dbdbf33adbaa7a820dba86a07abb226480b1817d
07/11 15:36:35.113000 00008348 UTL buildinfo: Built at 2022-06-25 15:01:37
07/11 15:36:35.113000 00008348 UTL version: 2.6.0.6
07/11 15:36:35.113000 00008348 UTL maxBinaryDisplayWidth: 30
07/11 15:36:35.113000 00008348 UTL tempDir: C:\Users\admin\AppData\Local\Temp
07/11 15:36:35.113000 00008348 UTL defaultJSONStrType: nchar
07/11 15:36:35.114000 00008348 UTL smlChildTableName:
07/11 15:36:35.114000 00008348 UTL smlTagNullName: _tag_null
07/11 15:36:35.114000 00008348 UTL walFlushSize: 1024(Mb)
07/11 15:36:35.114000 00008348 UTL shortcutFlag: 0
07/11 15:36:35.114000 00008348 UTL os numOfCores: 8
07/11 15:36:35.114000 00008348 UTL os totalMemory: 8191(MB)
07/11 15:36:35.114000 00008348 UTL ==================================
07/11 15:36:35.114000 00008348 UTL dataDir: C:/TDengine/data level:0 primary:1
07/11 15:36:35.114000 00008348 UTL ==================================
07/11 15:37:13.801000 00002956 UTL ERROR failed to connect socket, ip:0x9b507867, port:6030(Invalid argument)
07/11 15:37:13.801000 00002956 RPC ERROR failed to connect to:0x9b507867:6030
07/11 15:37:13.801000 00002956 RPC ERROR TSC 0000000000000004, failed to set up connection(Unable to establish connection)
07/11 15:37:13.805000 00007532 TSC WARN 0x4 it shall renew table meta, code:Unable to establish connection, retry:1
07/11 15:37:34.807000 00002956 UTL ERROR failed to connect socket, ip:0x9b507867, port:6030(Unknown error)
07/11 15:37:34.807000 00002956 RPC ERROR failed to connect to:0x9b507867:6030
07/11 15:37:34.807000 00002956 RPC ERROR TSC 0000000000000004, failed to set up connection(Unable to establish connection)
07/11 15:37:34.809000 00007532 TSC WARN 0x4 it shall renew table meta, code:Unable to establish connection, retry:2
07/11 15:37:55.811000 00002956 UTL ERROR failed to connect socket, ip:0x9b507867, port:6030(Unknown error)
07/11 15:37:55.811000 00002956 RPC ERROR failed to connect to:0x9b507867:6030
07/11 15:37:55.811000 00002956 RPC ERROR TSC 0000000000000004, failed to set up connection(Unable to establish connection)
07/11 15:37:55.814000 00007532 TSC WARN 0x4 it shall renew table meta, code:Unable to establish connection, retry:3
07/11 15:38:16.817000 00002956 UTL ERROR failed to connect socket, ip:0x9b507867, port:6030(Unknown error)
07/11 15:38:16.817000 00002956 RPC ERROR failed to connect to:0x9b507867:6030
07/11 15:38:16.817000 00002956 RPC ERROR TSC 0000000000000004, failed to set up connection(Unable to establish connection)
07/11 15:38:16.820000 00007532 TSC WARN 0x4 it shall renew table meta, code:Unable to establish connection, retry:4
07/11 15:38:37.823000 00002956 UTL ERROR failed to connect socket, ip:0x9b507867, port:6030(Unknown error)
07/11 15:38:37.823000 00002956 RPC ERROR failed to connect to:0x9b507867:6030
07/11 15:38:37.823000 00002956 RPC ERROR TSC 0000000000000004, failed to set up connection(Unable to establish connection)
07/11 15:38:37.825000 00007532 TSC WARN 0x4 it shall renew table meta, code:Unable to establish connection, retry:5
07/11 15:38:58.828000 00002956 UTL ERROR failed to connect socket, ip:0x9b507867, port:6030(Unknown error)
07/11 15:38:58.828000 00002956 RPC ERROR failed to connect to:0x9b507867:6030
07/11 15:38:58.828000 00002956 RPC ERROR TSC 0000000000000004, failed to set up connection(Unable to establish connection)
07/11 15:38:58.830000 00007532 TSC WARN 0x4 it shall renew table meta, code:Unable to establish connection, retry:6
07/11 15:38:58.830000 00007532 TSC ERROR 0x4 max retry 5 reached, give up
郁闷很久了，帮忙看一下
我也遇到了类似问题，使用客户端配置文件，设置 rpcForceTcp 1 选项 我使用以下python代码，连接执行没遇到 Unable to establish connection 错误了。 参考代码： conn = taos.connect(host="127.0.0.1", port=6030, user="root", password="taosdata", database="db1", config="C:\TDengine\cfg")
