GLOBAL_PAGEWRITER_STATUS

GLOBAL_PAGEWRITER_STATUS displays the page flushing information and checkpoint information about all instances in openGauss.

Table 1 GLOBAL_PAGEWRITER_STATUS columns

Name	Type	Description
node_name	text	node name
pgwr_actual_flush_total_num	bigint	Total number of dirty pages flushed from the startup time 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 dirty pages that are not flushed
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	Write position of Xlogs in the current instance
ckpt_redo_point	text	Checkpoint of the current instance