ISM error prevention

    ISM does not perform a action for an index under any of these conditions:

    delete

    ISM does not perform a delete action for an index under any of these conditions:

    • The index does not exist.
    • The index name is invalid.
    • The index is the write index for a data stream.

    force_merge

    ISM does not perform a force_merge action for an index if its dataset is too large and exceeds the threshold.

    • The number of shards exceeds the maximum.

    open

    ISM does not perform an action for an index under any of these conditions:

    • The index is blocked.
    • The number of shards exceeds the maximum.

    read_only

    ISM does not perform a read_only action for an index under any of these conditions:

    • The index is blocked.
    • The amount of data exceeds the threshold.

    ISM does not perform a read_write action for an index if the index is blocked.

    close

    • The index does not exist.
    • The index name is invalid.

    index_priority

    ISM does not perform an action for an index that does not have read-only-allow-delete permission.

    ISM does not perform a snapshot action for an index under any of these conditions:

    • The index does not exist.
    • The index name is invalid.

    transition

    ISM does not perform a transition action for an index under any of these conditions:

    • The index name is invalid.