GLOBAL_PAGEWRITER_STATUS

GLOBAL_PAGEWRITER_STATUS displays the page flushing information and checkpoint information about all instances in the database, as described in Table 1. In the multi-tenancy scenario, global information is returned if this view is accessed in a non-PDB, and the empty list is returned if this view is accessed in a PDB.

**Table 1** GLOBAL_PAGEWRITER_STATUS columns
Name	Type	Description
node_name	text	Instance name.
pgwr_actual_flush_total_num	bigint	Total number of dirty pages flushed from the startup to the current time.
pgwr_last_flush_num	integer	Number of dirty pages flushed in the previous batch.
remain_dirty_page_num	bigint	Estimated number of remaining dirty pages.
queue_head_page_rec_lsn	text	recovery_lsn of the first dirty page in the dirty page queue of the current instance.
queue_rec_lsn	text	recovery_lsn of the dirty page queue of the current instance.
current_xlog_insert_lsn	text	The write position of Xlogs in the current instance.
ckpt_redo_point	text	Checkpoint of the current instance.