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Redis ERR hash value is not an integer | Fixed

If you have been running into the following error, our experts have your back.

ERR value is not an integer or out of range

This error usually occurs when we use the HRANDFIELD command in Redis. The error is due to an incorrect number of parameters or incorrect parameters.

The syntax of this command is:

HRANDFIELD key [count [WITHVALUES]]

When this command is run with only the key argument, it returns a random field from the hash value stored at the key.

However, if the count argument is positive, it returns an array of different fields. The array’s length is count or the hash’s number of fields, whichever is lower.

On the other hand, if the count argument is negative, the behavior changes, and the command returns the same field multiple times.

Furthermore, the WITHVALUES modifier changes the reply so it includes the values of the randomly selected hash fields.

So when we run this command with the wrong number of arguments we will run into the error.

Furthermore, the error also occurs when we try to pass a floating point number instead of an integer.

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Conclusion

In summary, our Support Techs introduced us to the Redis ERR hash value is not an integer error, and the reasons behind its occurrence.