Exception with jedis [ERR duplicate blocking connection on same key.]

[sscarduzio]

I tried to migrate our queue system to ARDB and I got this. Why two blocking connections on the same key would be a problem?

[yinqiwen]

Yes, in redis, it's ok. I'll fixed it later.

[sscarduzio]

I'm not a C++ dev, but I tried to fix it myself, in lists.cpp I commented out all the instances of this snippet

          if (NULL != m_blocking_conns[key] && m_blocking_conns[key] != &ctx)
            {
                fill_error_reply(ctx.reply, "duplicate blocking connection on same key.");
                return 0;
            }

But unfortunately the server repeatedly segfaults. Not sure what went wrong..

[sscarduzio]

The server segfaulted continuously even after rolling back the change. I guess data got corrupted at a certain point.
That means I'm not sure if the code change was the culprit or not.
Now I deleted the data folder and I'm re-importing once again from the dump.

[yinqiwen]

Fixed in last commit.

[sscarduzio]

Thanks, I'm going to test this right now.

[sscarduzio]

It works! Thanks :)