Index: src/docbkx/performance.xml =================================================================== --- src/docbkx/performance.xml (revision 1459930) +++ src/docbkx/performance.xml (working copy) @@ -298,7 +298,7 @@ byte[] b = r.getValue(Bytes.toBytes("cf"), Bytes.toBytes("attr")); // returns current version of value But especially when inside loops (and MapReduce jobs), converting the columnFamily and column-names - to byte-arrays repeatedly is surprsingly expensive. + to byte-arrays repeatedly is surprisingly expensive. It's better to use constants for the byte-arrays, like this: public static final byte[] CF = "cf".getBytes();