Elasticsearch error

Hi,
I am seeing below error in elasticsearch. I am using ES_HEAP_SIZE=2g.
[2015-06-05 06:45:42,753][INFO ][monitor.jvm ] [David Cannon] [gc][young][25][4] duration [759ms], collections [1]/[1.2s], total [759ms]/[2s], memory [102.9mb]->[34.9mb]/[1.9gb], all_pools {[young] [73.1mb]->[463.2kb]/[102.5mb]}{[survivor] [12.7mb]->[8.7mb]/[12.7mb]}{[old] [17mb]->[25.6mb]/[1.8gb]}
Below error in logstash.
log4j, [2015-06-05T06:51:57.538] WARN: org.elasticsearch.monitor.jvm: [logstash-wamcdev-11553-14060] [gc][young][242][386] duration [1.6s], collections [1]/[2s], total [1.6s]/[2m], memory [105.2mb]->[50.3mb]/[495.8mb], all_pools {[young] [131.2kb]->[5.8mb]/[33.3mb]}{[survivor] [1.8mb]->[1.3mb]/[4.1mb]}{[old] [103.2mb]->[43.2mb]/[458.4mb]}
Can some one please shed some light and let me know how to fix these.
Regards
ELKUser

It's a warning, not an error, letting you know that GC is running.