Strange Spotlight error logs

Question

Strange Spotlight error logs

On a Mac mini Server using Mac OS X 10.7.4 Server I have these strange Spotlight error logs.

What's wrong? Can anyboby help?

13.11.12 10:00:05,399 com.apple.mdworker.isolation.0: warning: invalid bfrange: string length is not a multiple of 2.

13.11.12 10:00:05,399 com.apple.mdworker.isolation.0: *** process 6514 exceeded 500 log message per second limit - remaining messages this second discarded ***

13.11.12 10:01:36,118 com.apple.mdworker.isolation.0: invalid stream length 33464; should be 33249.

13.11.12 10:01:36,118 com.apple.mdworker.isolation.0: invalid stream length 37007; should be 36801.

13.11.12 10:01:36,118 com.apple.mdworker.isolation.0: invalid stream length 42528; should be 42321.

13.11.12 10:01:36,118 com.apple.mdworker.isolation.0: invalid stream length 37025; should be 36817.

13.11.12 10:01:36,118 com.apple.mdworker.isolation.0: invalid stream length 4801; should be 4593.

13.11.12 10:01:36,147 com.apple.mdworker.isolation.0: failed to find PDF header: `%PDF' not found.

13.11.12 10:01:37,991 com.apple.mdworker.isolation.0: Range {0x0000, 0xFFFF} is not 1-dimensional; handling as a special case.

13.11.12 10:01:37,992 com.apple.mdworker.isolation.0: Range {0x0000, 0xFFFF} is not 1-dimensional; handling as a special case.

13.11.12 10:01:38,112 com.apple.mdworker.isolation.0: Range {0x0000, 0xFFFF} is not 1-dimensional; handling as a special case.

13.11.12 10:01:38,240 com.apple.mdworker.isolation.0: Range {0x0000, 0xFFFF} is not 1-dimensional; handling as a special case.

13.11.12 10:01:38,241 com.apple.mdworker.isolation.0: Range {0x0000, 0xFFFF} is not 1-dimensional; handling as a special case.

13.11.12 10:01:38,297 com.apple.mdworker.isolation.0: Range {0x0000, 0xFFFF} is not 1-dimensional; handling as a special case.

13.11.12 10:01:38,298 com.apple.mdworker.isolation.0: Range {0x0000, 0xFFFF} is not 1-dimensional; handling as a special case.

13.11.12 10:01:38,343 com.apple.mdworker.isolation.0: Range {0x0000, 0xFFFF} is not 1-dimensional; handling as a special case.

13.11.12 10:01:58,147 com.apple.mdworker.isolation.0: failed to find PDF header: `%PDF' not found.

13.11.12 10:05:12,853 com.apple.mdworker.isolation.0: Incorrect start/end range ordering; fixing.

13.11.12 10:06:11,392 com.apple.mdworker.isolation.0: Incorrect start/end range ordering; fixing.

13.11.12 10:10:29,624 mdworker32: kCGErrorFailure: Set a breakpoint @ CGErrorBreakpoint() to catch errors as they are logged.

13.11.12 10:10:30,550 mdworker32: kCGErrorFailure: Set a breakpoint @ CGErrorBreakpoint() to catch errors as they are logged.

13.11.12 10:12:35,002 com.apple.mdworker.pool.1: PSSniffer error: Undefined error: 0

13.11.12 10:12:35,071 com.apple.mdworker.pool.1: PSSniffer error: Not a directory

13.11.12 10:13:06,252 com.apple.mdworker.isolation.0: Incorrect start/end range ordering; fixing.

13.11.12 10:15:23,771 mdworker32: kCGErrorFailure: Set a breakpoint @ CGErrorBreakpoint() to catch errors as they are logged.

13.11.12 10:16:32,784 mdworker32: kCGErrorFailure: Set a breakpoint @ CGErrorBreakpoint() to catch errors as they are logged.

13.11.12 10:16:38,018 com.apple.mdworker.isolation.0: Incorrect start/end range ordering; fixing.

13.11.12 10:16:55,240 com.apple.mdworker.pool.0: PSSniffer error: No such file or directory

13.11.12 10:16:55,242 com.apple.mdworker.pool.0: PSSniffer error: No such file or directory

13.11.12 10:16:55,653 com.apple.mdworker.pool.0: PSSniffer error: No such file or directory

13.11.12 10:16:55,654 com.apple.mdworker.pool.0: PSSniffer error: No such file or directory

13.11.12 10:16:56,109 com.apple.mdworker.pool.0: PSSniffer error: No such file or directory

13.11.12 10:16:56,355 com.apple.mdworker.pool.0: PSSniffer error: No such file or directory

13.11.12 10:17:40,021 com.apple.mdworker.pool.1: PSSniffer error: No such file or directory

13.11.12 10:17:40,024 com.apple.mdworker.pool.1: PSSniffer error: No such file or directory

13.11.12 10:20:45,111 com.apple.mdworker.isolation.0: Incorrect start/end range ordering; fixing.

13.11.12 10:21:09,271 com.apple.mdworker.isolation.0: Incorrect start/end range ordering; fixing.

13.11.12 10:21:14,683 mdworker32: kCGErrorFailure: Set a breakpoint @ CGErrorBreakpoint() to catch errors as they are logged.

13.11.12 10:21:18,464 com.apple.mdworker.isolation.0: Incorrect start/end range ordering; fixing.

13.11.12 10:21:40,586 com.apple.mdworker.isolation.0: Incorrect start/end range ordering; fixing.

13.11.12 10:21:48,661 com.apple.mdworker.isolation.0: Incorrect start/end range ordering; fixing.

13.11.12 10:22:00,314 com.apple.mdworker.isolation.0: Incorrect start/end range ordering; fixing.

13.11.12 10:22:02,828 com.apple.mdworker.isolation.0: Incorrect start/end range ordering; fixing.

13.11.12 10:23:17,957 com.apple.mdworker.isolation.0: Incorrect start/end range ordering; fixing.

13.11.12 10:24:39,923 com.apple.mdworker.isolation.0: syntax error, unexpected DICTSTART.

13.11.12 10:24:39,923 com.apple.mdworker.isolation.0: failed to parse embedded CMap.