corruption in db. myisam bad? innodb good?

2007-05-22 Thread tim h

hi. database is myisam,  5.8Gb, 7mil records.
recently had some corruption i think due to mysqld service failure.
10 tabes were crashed.

question --
how can i prevent or minimize this?
Will switching to innodb help?
Will converting all my queries to transactions help?

thanks.

--
Tim H
Berkeley, CA


dump db without locking up the server

2007-05-22 Thread tim h

is there a safe way to dump/backup a live database without disrupting
service?  when i run mysqldump the whole server comes to a crawl and queries
start taking 60+ seconds to complete.

is there a way to make mysqldump run at low priority?
worst case scenario is i miss the queries that took place during the backup
right?

Tim