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v2.1

Documentation:v2.1

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GLOBAL_PAGEWRITER_STATUS

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

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
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