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Zookeeper >> mail # user >> How to know if connection to zk is successful in C API.


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李赫元 2012-05-14, 09:04
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Re: How to know if connection to zk is successful in C API.
The connection API is asynchronous, you'll need to look for the session
state changes in the watcher_callback.

Best Regards,
Martin Kou

On Mon, May 14, 2012 at 2:04 AM, 李赫元 <[EMAIL PROTECTED]> wrote:

> Hi All,
>
> I encounter a problem in zookeeper 3.4.1 with C API.
> The following is always show "success" even the zkserver is actually down.
>
>    char* zk_server = "127.0.0.1:2181";
>    zhandle_t* zh = zookeeper_init(zk_server, watcher_callback, 3000,
> 0, NULL, 0);
>    if(!zh)
>    {
>        print_error(errno);
>        return -1;
>    }else
>    {
>        ::std::cout << "success" << ::std::endl;
>    }
>
> Even if the zookeeper is shutdown, the zh handle is still not NULL.
> So, I don't know how to judge if connection to zookeeper is succful in C
> API.
>
> Thanks all.
>
> Heyuan Li
>
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李赫元 2012-05-14, 11:44