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Posted to notifications@iotdb.apache.org by "iotopo (via GitHub)" <gi...@apache.org> on 2023/02/10 05:27:52 UTC
[GitHub] [iotdb-client-go] iotopo opened a new issue, #74: 连续执行 2 次查询后报错
iotopo opened a new issue, #74:
URL: https://github.com/apache/iotdb-client-go/issues/74
如图所示
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[GitHub] [iotdb-client-go] iotopo closed issue #74: 连续执行 2 次查询后报错
Posted by "iotopo (via GitHub)" <gi...@apache.org>.
iotopo closed issue #74: 连续执行 2 次查询后报错
URL: https://github.com/apache/iotdb-client-go/issues/74
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[GitHub] [iotdb-client-go] HTHou commented on issue #74: 连续执行 2 次查询后报错
Posted by "HTHou (via GitHub)" <gi...@apache.org>.
HTHou commented on issue #74:
URL: https://github.com/apache/iotdb-client-go/issues/74#issuecomment-1432587457
可以提供一下iotdb端的日志吗
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[GitHub] [iotdb-client-go] citrusreticulata commented on issue #74: 连续执行 2 次查询后报错
Posted by "citrusreticulata (via GitHub)" <gi...@apache.org>.
citrusreticulata commented on issue #74:
URL: https://github.com/apache/iotdb-client-go/issues/74#issuecomment-1432462886
请问可以提供更多信息吗？例如：
1. 服务端版本
2. go客户端版本（commit id）
3. 能稳定复现问题的go客户端代码片段
4. 服务端配置
5. 其他可能有帮助的信息
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[GitHub] [iotdb-client-go] iotopo commented on issue #74: 连续执行 2 次查询后报错
Posted by "iotopo (via GitHub)" <gi...@apache.org>.
iotopo commented on issue #74:
URL: https://github.com/apache/iotdb-client-go/issues/74#issuecomment-1432580582
1. 服务端版本
2. go客户端版本（commit id）
3. 能稳定复现问题的go客户端代码片段
4. 服务端配置
5. 其他可能有帮助的信息
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[GitHub] [iotdb-client-go] iotopo commented on issue #74: 连续执行 2 次查询后报错
Posted by "iotopo (via GitHub)" <gi...@apache.org>.
iotopo commented on issue #74:
URL: https://github.com/apache/iotdb-client-go/issues/74#issuecomment-1432652340
iotserver 端报错如下：
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[GitHub] [iotdb-client-go] HTHou commented on issue #74: 连续执行 2 次查询后报错
Posted by "HTHou (via GitHub)" <gi...@apache.org>.
HTHou commented on issue #74:
URL: https://github.com/apache/iotdb-client-go/issues/74#issuecomment-1432840371
> 我写了一个最小复现的代码，现在来看应该是 session 不支持并发。
>
> ```go
> func main() {
> session := client.NewSession(&client.Config{
> Host: "127.0.0.1",
> Port: "6667",
> UserName: "root",
> Password: "root",
> })
>
> if err := session.Open(false, 0); err != nil {
> panic(err)
> }
>
> timeout := int64(20000)
> go func() {
> _, err := session.ExecuteQueryStatement("select last v1 as value from root.ln.wf02.wt02", &timeout)
> if err != nil {
> panic(err)
> }
> }()
>
> go func() {
> _, err := session.ExecuteQueryStatement("select last hardware as value from root.ln.wf02.wt02", &timeout)
> if err != nil {
> panic(err)
> }
> }()
> time.Sleep(time.Second * 200)
> }
> ```
是的 单个session不能并发使用，如果有并发，需要使用多个session。
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[GitHub] [iotdb-client-go] iotopo commented on issue #74: 连续执行 2 次查询后报错
Posted by "iotopo (via GitHub)" <gi...@apache.org>.
iotopo commented on issue #74:
URL: https://github.com/apache/iotdb-client-go/issues/74#issuecomment-1433951439
> #75 有开源贡献者正在贡献session pool 的相关代码，可以等待一下新版本发布。
好的，感谢回复
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[GitHub] [iotdb-client-go] iotopo commented on issue #74: 连续执行 2 次查询后报错
Posted by "iotopo (via GitHub)" <gi...@apache.org>.
iotopo commented on issue #74:
URL: https://github.com/apache/iotdb-client-go/issues/74#issuecomment-1432651447
我写了一个最小复现的代码，现在来看应该是 session 不支持并发。
`
func main() {
session := client.NewSession(&client.Config{
Host: "127.0.0.1",
Port: "6667",
UserName: "root",
Password: "root",
})
if err := session.Open(false, 0); err != nil {
panic(err)
}
timeout := int64(20000)
go func() {
_, err := session.ExecuteQueryStatement("select last v1 as value from root.ln.wf02.wt02", &timeout)
if err != nil {
panic(err)
}
}()
go func() {
_, err := session.ExecuteQueryStatement("select last hardware as value from root.ln.wf02.wt02", &timeout)
if err != nil {
panic(err)
}
}()
time.Sleep(time.Second * 200)
}
`
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[GitHub] [iotdb-client-go] iotopo commented on issue #74: 连续执行 2 次查询后报错
Posted by "iotopo (via GitHub)" <gi...@apache.org>.
iotopo commented on issue #74:
URL: https://github.com/apache/iotdb-client-go/issues/74#issuecomment-1432844741
驱动包里没有考虑提供一个可以使用的 session pool 吗？需要业务侧自己实现一个是吧？
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[GitHub] [iotdb-client-go] HTHou commented on issue #74: 连续执行 2 次查询后报错
Posted by "HTHou (via GitHub)" <gi...@apache.org>.
HTHou commented on issue #74:
URL: https://github.com/apache/iotdb-client-go/issues/74#issuecomment-1432849270
https://github.com/apache/iotdb-client-go/pull/75 有开源贡献者正在贡献session pool 的相关代码，可以等待一下新版本发布。
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