Monitor Partition Percentages

Use the messages in the log file to monitor changes in Replication Server partition percentages.

Replication Server operates on 1MB partition segments. Whenever it allocates or deallocates a partition segment, it calculates:
  • Percentage of total partition segments in use

  • Percentage of total partition segments in use by the affected stable queue

If the percentage of partition segments in use rises above the percentage specified by sqm_warning_thr1 or sqm_warning_thr2, a message is written to the log file:
WARNING: Stable Storage Use is Above threshold percent

If you see this message often, you may need to add partitions to the Replication Server or correct a recurring failure that causes the queues to fill.

When the first percentage drops below the percentage specified by sqm_warning_thr1 or sqm_warning_thr2, a message is written that the condition that caused the original warning no longer exists:
WARNING CANCEL: Stable Storage Use is Below threshold percent
The percentage of total partition segments in use by the affected stable queue triggers a warning message when the percentage of the total space used by a single stable queue exceeds the percentage specified by sqm_warning_thr_ind:
WARNING: Stable Storage Use by queue name is Above threshold percent

This warning alerts you to problems that cause a particular stable queue to fill until it is using a disproportionate share of the total partition space. For example, if a route is suspended for a length of time, its stable queue may fill until it occupies enough partition space to trigger a warning.

When the percentage of the total partition space used by a stable queue drops below the sqm_warning_thr_ind percentage, Replication Server writes a cancel message:
WARNING CANCEL: Stable Storage Use by queue name is Below threshold percent.