huaxiang sun created HBASE-20268:
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Summary: It takes more than 15 seconds to bring up hbase shell
Key: HBASE-20268
URL: https://issues.apache.org/jira/browse/HBASE-20268
Project: HBase
Issue Type: Improvement
Components: shell
Affects Versions: 2.0.0-alpha-4
Reporter: huaxiang sun
Assignee: Mike Drob
On a hbase 2.0 based cluster, it takes more than 15 seconds to bring up hbase
shell.
Output:
# [root@hsun-1 ~]# echo exit | time /usr/java/default/bin/java -jar
/opt/cloudera/parcels/CDH/jars/jruby-complete-9.1.10.0.jar -S irb
# Switch to inspect mode.
# exit
# 9.81user 0.30system 0:03.59elapsed 281%CPU (0avgtext+0avgdata
308672maxresident)k
# 0inputs+776outputs (0major+79787minor)pagefaults 0swaps
#
# [root@hsun-1 ~]# echo exit | time hbase shell
# Java HotSpot(TM) 64-Bit Server VM warning: Using incremental CMS is
deprecated and will likely be removed in a future release
# HBase Shell
# Use "help" to get list of supported commands.
# Use "exit" to quit this interactive shell.
# Version 2.0.0-cdh6.0.x-SNAPSHOT, rUnknown, Thu Mar 22 12:30:22 PDT 2018
# Took 0.0040 seconds
# exit
# 33.92user 1.20system 0:15.21elapsed 230%CPU (0avgtext+0avgdata
360928maxresident)k
# 0inputs+1064outputs (0major+176658minor)pagefaults 0swaps
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