Should be easy. Also, please tell me what the problem was so I can learn.
Background: Yesterday, I updated the SSL certs for MySQL replication, but the connection suddenly failed on this server. This may be because I recently did "yum update". Master MySQL is 5.5 but slave is 5.0. I tried to upgrade slave (this server) to 5.5 but had more problems (would not read proper [url removed, login to view] file). So, I reinstalled 5.0 and fixed replication/SSL with a new MySQL replication user. But, then this problem happened: "Fix utils.c:968 ast_carefulwrite: write() returned error: Broken pipe"