accumulo-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From o haya <>
Subject Re: Master takes awhile to start after Accumulo run
Date Mon, 19 Jun 2017 02:57:22 GMT

The period I was talking about was probably approximately a minute, but I think that you are
right that it's just the first startup and might be either HDFS or ZK startup and now what
I am working with it more (and restarting only the Accumulo server more), the delay is only
a few seconds before the tablet (I only have 1 in my test env) starts.


I think that you are right tha
On Thu, 5/25/17, Christopher <> wrote:

 Subject: Re: Master takes awhile to start after Accumulo run
 To:, "o haya" <>
 Date: Thursday, May 25, 2017, 11:33 PM
 How long is
 "awhile"? A few seconds, tens of seconds,
 It could take some
 extra time in a virtualized environment, but it's hard
 to know exactly whether what you're seeing is normal or
 not, without knowing how many tablets your system has, how
 fast your networking is, what specs your nodes have, how
 many tablet servers you are running, and any number of other
 If you're
 starting HDFS and ZK immediately prior to starting Accumulo,
 Accumulo may be waiting on those to finish starting first.
 You may see some indication of this in the Accumulo logs.
 The other thing is... it can
 take about 30 seconds for the ZooKeeper lock from a
 previously killed Master to disappear, if you're killing
 and restarting it.
 shell may be able to start faster with the
 --disable-tab-completion option.
 On Thu, May
 25, 2017 at 10:04 PM o haya <>
 I followed the procedure on this page to stand up my test
 Accumulo 1.8.1 instance:
 Everything seems to be working correctly.  To startup,
 - Run /apps/hadoop/sbin/
 - Run /apps/zookeeper/bin/ start
 - Run /apps/accumulo/bin/
 The accumulo startup seems to run all right and I can get to
 the Accumulo website, but the Master is not running.  If I
 wait awhile and check the website again, then everything is
 running, including Master.
 Is it normal for the Master to take awhile to start
 running?  Is there something I can do to get it to start
 It seems like I cannot start the Accumulo shell until the
 Master is running...

View raw message