[Rspamd-Users] Please help: rspamd_redis_processed: got invalid reply from redis: error, array expected

[Seibel Andreas]

Am 07.08.2020 um 14:12 schrieb Seibel Andreas:
> Hello,
>
> from time to time (about once a month) we have the following problem: in rspamd.log the lines appear for every email:
>
> 2020-08-05 16:09:29 #873(normal) <3344ec>; task; rspamd_redis_processed: got invalid reply from redis: error, array expected
> 2020-08-05 16:09:29 #873(normal) <3344ec>; task; rspamd_redis_processed: got invalid reply from redis: error, array expected
> 2020-08-05 16:09:29 #873(normal) <3344ec>; task; rspamd_stat_classifiers_process: skip statistics as SPAM class is missing
>
> Learning and evaluating Bayes no longer works.
>
> I can fix it by stopping redis, deleting the corresponding ".rdb" file and starting redis again. But then of course the data is gone and Bayes has to learn again.
> We have a separate redis instance for Bayes. Our "local.d/statistics.conf" looks like this
>
> ------------------------------------------------------------------------------------------------------
> classifier "bayes" {
>    tokenizer {
>      name = "osb";
>    }
>    cache {
>    }
>    new_schema = true; # Always use new schema
>    store_tokens = false; # Redefine if storing of tokens is desired
>    signatures = false; # Store learn signatures
>    #per_user = true; # Enable per user classifier
>    min_tokens = 11;
>    backend = "redis";
>    min_learns = 200;
>
>    servers = "localhost:6378";
>
>    statfile {
>      symbol = "BAYES_HAM";
>      spam = false;
>    }
>    statfile {
>      symbol = "BAYES_SPAM";
>      spam = true;
>    }
> #  learn_condition = 'return require("lua_bayes_learn").can_learn';
>
>    # Autolearn sample
>    autolearn {
>      spam_threshold = 6.0; # When to learn spam (score >= threshold)
>      ham_threshold = -0.5; # When to learn ham (score <= threshold)
>      check_balance = true; # Check spam and ham balance
>      min_balance = 0.9; # Keep diff for spam/ham learns for at least this value
>    }
>
> }
> ------------------------------------------------------------------------------------------------------
>
> Does anyone have any idea what's going wrong?
>
> Thanks a lot in advance.
>
> Regards, Andreas.

We have the problem again. I found the following 
"https://github.com/rspamd/rspamd/issues/1883", but we do not have a 
redis cluster or other replication.

May be someone any idea?

Andreas

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