Purging bitmaps exactly up to the last tracked LSN aborts change tracking

[Laurynas Biveinis]

PURGE CHANGED_PAGE_BITMAPS closes the current bitmap file if purge LSN >= current tracked LSN, and reopens it later if purge LSN > current tracked LSN. There is a mismatch between >= and >.

log_online_purge_changed_page_bitmaps(...)
{
...
 if (srv_track_changed_pages && lsn >= log_bmp_sys->end_lsn) {
  /* If we have to delete the current output file, close it
  first. */
  os_file_close(log_bmp_sys->out.file);
  log_bmp_sys->out.file = os_file_invalid;
 }
...
 if (srv_track_changed_pages) {
  if (lsn > log_bmp_sys->end_lsn) {
                      /* Open a new file */
...

[Shahriyar Rzayev (rzayev-sehriyar)]

Percona now uses JIRA for bug reports so this bug report is migrated to: https://jira.percona.com/browse/PS-1550