* This gets lag information that is useful when
the calling code is about to run queries that
will have their results cached.
* This is now used in place of trxTimestamp() for
WANObjectCache set() and getWithSetCallback().
* The WAN cache will use a low TTL if the lag is
too high to avoid caching stale data for weeks.
* Bumped MAX_COMMIT_DELAY as nothing enforces it.
Bug: T113204
Change-Id: I2a95b4088cff42d6e980351555f81a4b13519e24
This is a set of classes written for Echo to simplify writing
maintenance scripts that iterate over an entire table and update
some of those rows.
This has shown to be reusable elsewhere, especially the BatchRowIterator
class and will be useful to have generally avilable in core. The Echo
classes are all prefixed with the Echo name so there wont be any
conflict is both are installed.
Change-Id: I64c1751106caf34f41af799dbaf8794115537f06
