Re: pg_standby stuck on a wal file size <16MB

as Greg pointed out: my use of rsync --remove-sent-files option had contributed to a short sized wal log file on standby.
changing master's postgres crontab to the following helped to resolve the issue:

# ship logs to standby:
*/2     * * * * rsync -aq /wal_archive_local/ 10.10.10.12::wal_archive/
# remove files older then remove_check file mtime
*/5     * * * * find /wal_archive_local/ ! -newer /wal_archive_local/remove_check -exec rm -f {} \; && touch /wal_archive_local/remove_check