Hi Lian, "Namenode last checkpoint” basically means one of these two scenario has been triggered. 1. the last time that the NameNode performed a checkpoint was too long ago 2. the number of uncommitted transactions is beyond a certain threshold.
You can try these to see if it solves your problem, 1. Set NameNode checkpoint. 2. Review threshold for uncommitted transactions. Thanks On Aug 5, 2018, at 7:10 PM, Lian Jiang <jiangok2...@gmail.com<mailto:jiangok2...@gmail.com>> wrote: Hi, The primary namenode of my HA cluster using HDP2.6 goes into safemode daily due to "Namenode last checkpoint". The default dfs.namenode.checkpoint.period is 6 hours while https://hadoop.apache.org/docs/r2.4.1/hadoop-project-dist/hadoop-hdfs/hdfs-default.xml says the default is 1 hour. Manually updating this property to 1 hour does not make the alert go away. Any idea is highly appreciated. Thanks.
