Possible issues about raft

[clicx]

Is here problem? Because current node has no entry, ety always null therefor cause endless loop

/* Not the first appendentries we've received /
/ NOTE: the log starts at 1 /
if (0 < ae->prev_log_idx)
{
raft_entry_t ety = raft_get_entry_from_idx(me_, ae->prev_log_idx);

    /* 2. Reply false if log doesn't contain an entry at prevLogIndex
       whose term matches prevLogTerm (§5.3) */
    if (!ety)
    {
        __log(me_, node, "AE no log at prev_idx %d", ae->prev_log_idx);
        goto out;
    }