[ https://issues.apache.org/jira/browse/HDFS-7541?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Ming Ma updated HDFS-7541: -------------------------- Fix Version/s: (was: 2.9.0) 2.8.2 > Upgrade Domains in HDFS > ----------------------- > > Key: HDFS-7541 > URL: https://issues.apache.org/jira/browse/HDFS-7541 > Project: Hadoop HDFS > Issue Type: Improvement > Reporter: Ming Ma > Assignee: Ming Ma > Fix For: 3.0.0-alpha1, 2.8.2 > > Attachments: HDFS-7541-2.patch, HDFS-7541.patch, > SupportforfastHDFSdatanoderollingupgrade.pdf, UpgradeDomains_design_v2.pdf, > UpgradeDomains_Design_v3.pdf > > > Current HDFS DN rolling upgrade step requires sequential DN restart to > minimize the impact on data availability and read/write operations. The side > effect is longer upgrade duration for large clusters. This might be > acceptable for DN JVM quick restart to update hadoop code/configuration. > However, for OS upgrade that requires machine reboot, the overall upgrade > duration will be too long if we continue to do sequential DN rolling restart. > -- This message was sent by Atlassian JIRA (v6.3.15#6346) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org