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From "Terry Porter (JIRA)" <j...@apache.org>
Subject [jira] [Created] (ACCUMULO-1901) start-here.sh starts only one GC process even if more are defined
Date Fri, 15 Nov 2013 21:43:20 GMT
Terry Porter created ACCUMULO-1901:
--------------------------------------

             Summary: start-here.sh starts only one GC process even if more are defined
                 Key: ACCUMULO-1901
                 URL: https://issues.apache.org/jira/browse/ACCUMULO-1901
             Project: Accumulo
          Issue Type: Bug
          Components: gc, scripts
    Affects Versions: 1.5.0, 1.4.4, 1.4.3, 1.4.2
         Environment: Red Hat Enterprise Linux 6.3 64-bit
            Reporter: Terry Porter
            Priority: Minor
             Fix For: 1.4.5, 1.5.1, 1.6.0


Even when a second host is listed in the gc file, the gc process is only ever started on the
first host listed in the gc file.  The issue lies in lines 48-55 in start-here.sh as shown
below:

for host in $HOSTS
do
    if [ ${host} = ${GC} ]
    then
        ${bin}/start-server.sh $GC gc "garbage collector"
        break
    fi
done

Simple fix:

for host in $HOSTS
do
    if grep -q "^${host}\$" $ACCUMULO_HOME/conf/gc
    then
        ${bin}/start-server.sh ${host} gc "garbage collector"
        break
    fi
done

This fix works in my 1.4.2 environment.  stop-here.sh already sweeps all possible processes
to kill them, so no fix needed there.

I posted the fix in case anyone needs this ASAP as this will be my first development work
with an open source project, but I hope to be able to post the fix this weekend.



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