安装GBase 8c数据库集群时，报错误码:80000306,显示Dcs cluster not healthy。怎么处理错误呢？

根据显示来看，这是因为当前etcd集群的节点状态不健康。可以先调用gha_ctl monitor dcs -l dcslist命令，查看不健康节点信息，然后调用gha_ctl remove dcs id -l dcslist命令，删除不健康节点。如果需要的话，可以调用gha_ctl add dcs host:port -l dcslist，将删掉的节点重新添加进来就可以了。

#include <iostream>

#include <stdio.h>

#include "/home/mysql/include/mysql.h"

int main()

{

MYSQL mysql

MYSQL_RES *result=NULL

MYSQL_FIELD *field=NULL

mysql_init(&mysql)

mysql_real_connect(&mysql, "localhost", "root", "neusoft", "test", 3306, NULL, 0)

// string sql = "create table a1(col int)"

// mysql_query(&mysql,"insert into a values(3)")

mysql_query(&mysql,"select col from a")

result=mysql_store_result(&mysql)

int fieldcount = mysql_num_fields(result)

MYSQL_ROW row

row = mysql_fetch_row(result)

while(NULL != row)

{

for(int i=0i<fieldcounti++)

{

//field=mysql_fetch_field_direct(result,i)

//printf("%s",row[i])

std::cout<<row[i]<<std::endl

}

//std::cout<<std::endl

row = mysql_fetch_row(result)

}

//mysql_query(&mysql,sql.c_str())

mysql_close(&mysql)

}

这是我成功 *** 作的代码。。。。。

#import "C:\program files\common files\system\ado\msado15.dll" no_namespace rename("EOF","adoEOF") //要写在一行，很重要，主要的问题都在这

#include <stdio.h>

void main()

{

_ConnectionPtr cn

::CoInitialize(NULL)

cn.CreateInstance(__uuidof(Connection))

_bstr_t connStr = "Provovider = Microsoft.Jet>OLEDB.4.0Data Source=test.mdb"

try

{

cn->CursorLocation=adUseClient

cn->Open(connStr,"","",adModeUnknown)

_variant_t rowsAffected//影响行数

_RecordsetPtr rs

rs = cn->Execute("SELECT * FROM T_person",&rowsAffected,adCmdText)

while(!rs->adoEOF) //不能有引号

{

_variant_t var = rs->Fields->Item["uid"]->Value

printf("%s\n",(char *)_bstr_t(var))

rs->MoveNext()

}

rs->Close() //close的第一个字母要大写

}

catch(_com_error e)

{

printf("%s\n",(char *)e.Description())

}

if(cn->State) cn->Close()

::CoUninitialize()

exit(0)

}

//PS：stdio.h换回去

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