Time Machine Waiting for Index to Be Ready
My Time Machine backup (on OS X 10.7) was stuck on Waiting for index to be ready (100) for a long time (it kept logging this once every minute for 20 minutes).
I ended up killing the mds process. I was treated with an Indexer unavailable (200), then another Waiting for index to be ready, then the backup completed successfully:
19.08.2012 14:25:34.270 com.apple.backupd: Waiting for index to be ready (100)
19.08.2012 14:26:34.352 com.apple.backupd: Waiting for index to be ready (100)
19.08.2012 14:27:34.429 com.apple.backupd: Waiting for index to be ready (100)
19.08.2012 14:28:13.502 com.apple.backupd: Indexer unavailable (200)
19.08.2012 14:28:35.520 com.apple.backupd: Waiting for index to be ready (100)
19.08.2012 14:30:14.957 com.apple.backupd: Copied 2944 files (5.2 MB) from volume filemate.
19.08.2012 14:30:15.574 com.apple.backupd: Copied 2955 files (5.2 MB) from volume 500GB.
19.08.2012 14:30:32.853 com.apple.backupd: Backup completed successfully.