[ https://issues.apache.org/jira/browse/HDFS-14208?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
xuzq updated HDFS-14208: ------------------------ Description: When cluster is very large, Standby startup takes about 1 hours. After Standby starts and exits SafeMode, a large number of missingblocks often appeared after failover from standby to active. And the missingblocks will gradually disappear after 6 hours(block report interval). According the log and find only half the blocks of one DataNode be processed in SaftMode. Because the lease expired after processed some blocks of one DataNode. [MergeRequest|https://github.com/apache/hadoop/pull/467] was: When cluster is very large, Standby startup takes about 1 hours. After Standby starts and exits SafeMode, a large number of missingblocks often appeared after failover from standby to active. And the missingblocks will gradually disappear after 6 hours(block report interval). According the log and find only half the blocks of one DataNode be processed in SaftMode. Because the lease expired after processed some blocks of one DataNode. > A large number missingblocks happend after failover to active. > -------------------------------------------------------------- > > Key: HDFS-14208 > URL: https://issues.apache.org/jira/browse/HDFS-14208 > Project: Hadoop HDFS > Issue Type: Improvement > Components: hdfs > Affects Versions: 3.0.2, 3.1.1, 3.0.3 > Reporter: xuzq > Priority: Major > > When cluster is very large, Standby startup takes about 1 hours. After > Standby starts and exits SafeMode, a large number of missingblocks often > appeared after failover from standby to active. And the missingblocks will > gradually disappear after 6 hours(block report interval). > According the log and find only half the blocks of one DataNode be processed > in SaftMode. > > Because the lease expired after processed some blocks of one DataNode. > [MergeRequest|https://github.com/apache/hadoop/pull/467] -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org