doing the hotbackup on the hidden node, and its dataPath is increasing, far lager than the primary and Sencondary node
We do the hotbackup on the hidden node, and its dataPath is increasing, far lager than the primary and Sencondary node during hotbackup.
s->open_cursor(s, "backup:", NULL, NULL, &c);
while( (ret = c->next(c)) == 0 && (ret = c->get_key(c, &filename))
{
copy files to slow disks
}
close_cursor(c )
these files becomes larger during hotbackup:
journal files,
collection files,
index files .
we restart the hidden node when hotbackup ended, journal and files collection files can decrease to the size the primary, but the index files still so large
the process of hotbackup time is very long (sometimes about sevral hours to more than 20 hours) , because size of the data is large and we backup to very slow disks
some instances abort the disk of the datapath:
Primary 135G
Secondary 133G
Hidden 334G
------
Primary 211G
Secondary 213G
Hidden 330G
------
Primary 183G
Secondary 194G
Hidden 416G
------
Primary 964G
Secondary 964G
Hidden 1.5T