[ACCUMULO-1901] start-here.sh starts only one GC process even if more are defined

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 1.4.2, 1.4.3, 1.4.4, 1.5.0
• Fix Version/s: 1.4.5, 1.5.1, 1.6.0
• Component/s: gc, scripts
• Labels: gc newbie

Environment

Red Hat Enterprise Linux 6.3 64-bit

• Assignee: Terry Porter
• Reporter: Terry Porter
• Created: 15/Nov/13 21:42
• Updated: 19/Dec/13 20:19
• Resolved: 19/Dec/13 20:19

Description

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 I assumed no fix was needed there, but on my last cluster shutdown I found the stop-all.sh script only stopped the GC on the Master host. That fix is still outstanding.

Issue Links

• relates to: ACCUMULO-1967 magitator should respect presence or lack of gc file

Sub-Tasks

• GC does not start when running in standalone mode: Resolved