With an old version of elasticsearch ( 1.4.3 ) I have several warning.
Can you explicate me what mean this warning?
29064:[2019-04-15 20:27:37,045][WARN ][monitor.jvm ] [Node2] [gc][old][24838177][1073716] duration [10.2s], collections [1]/[10.7s], total [10.2s]/[20.5d], memory [15.8gb]->[15.8gb]/[15.8gb], all_pools {[young] [865.3mb]->[865.3mb]/[865.3mb]}{[survivor] [15mb]->[15.4mb]/[108.1mb]}{[old] [14.9gb]->[14.9gb]/[14.9gb]}
29065:[2019-04-15 20:27:48,820][WARN ][monitor.jvm ] [Node2] [gc][old][24838178][1073717] duration [11.1s], collections [1]/[11.7s], total [11.1s]/[20.5d], memory [15.8gb]->[15.8gb]/[15.8gb], all_pools {[young] [865.3mb]->[865.3mb]/[865.3mb]}{[survivor] [15.4mb]->[28.1mb]/[108.1mb]}{[old] [14.9gb]->[14.9gb]/[14.9gb]}
29066:[2019-04-15 20:27:59,576][WARN ][monitor.jvm ] [Node2] [gc][old][24838179][1073718] duration [10.2s], collections [1]/[10.7s], total [10.2s]/[20.5d], memory [15.8gb]->[15.8gb]/[15.8gb], all_pools {[young] [865.3mb]->[865.3mb]/[865.3mb]}{[survivor] [28.1mb]->[27.4mb]/[108.1mb]}{[old] [14.9gb]->[14.9gb]/[14.9gb]}
29067:[2019-04-15 20:28:10,551][WARN ][monitor.jvm ] [Node2] [gc][old][24838180][1073719] duration [10.5s], collections [1]/[10.9s], total [10.5s]/[20.5d], memory [15.8gb]->[15.8gb]/[15.8gb], all_pools {[young] [865.3mb]->[865.3mb]/[865.3mb]}{[survivor] [27.4mb]->[26.3mb]/[108.1mb]}{[old] [14.9gb]->[14.9gb]/[14.9gb]}
29069:[2019-04-15 20:28:31,354][WARN ][monitor.jvm ] [Node2] [gc][old][24838182][1073721] duration [10.2s], collections [1]/[10.7s], total [10.2s]/[20.5d], memory [15.8gb]->[15.8gb]/[15.8gb], all_pools {[young] [865.3mb]->[865.3mb]/[865.3mb]}{[survivor] [24.3mb]->[27mb]/[108.1mb]}{[old] [14.9gb]->[14.9gb]/[14.9gb]}
29070:[2019-04-15 20:28:42,327][WARN ][monitor.jvm ] [Node2] [gc][old][24838183][1073722] duration [10.5s], collections [1]/[10.9s], total [10.5s]/[20.5d], memory [15.8gb]->[15.8gb]/[15.8gb], all_pools {[young] [865.3mb]->[865.3mb]/[865.3mb]}{[survivor] [27mb]->[26.9mb]/[108.1mb]}{[old] [14.9gb]->[14.9gb]/[14.9gb]}
29073:[2019-04-15 20:29:03,181][WARN ][monitor.jvm ] [Node2] [gc][old][24838185][1073724] duration [10.3s], collections [1]/[10.7s], total [10.3s]/[20.5d], memory [15.8gb]->[15.8gb]/[15.8gb], all_pools {[young] [865.3mb]->[865.3mb]/[865.3mb]}{[survivor] [27.2mb]->[27.7mb]/[108.1mb]}{[old] [14.9gb]->[14.9gb]/[14.9gb]}
29076:[2019-04-15 20:29:23,986][WARN ][monitor.jvm ] [Node2] [gc][old][24838187][1073726] duration [10.2s], collections [1]/[10.7s], total [10.2s]/[20.5d], memory [15.8gb]->[15.8gb]/[15.8gb], all_pools {[young] [865.3mb]->[865.3mb]/[865.3mb]}{[survivor] [29mb]->[26.2mb]/[108.1mb]}{[old] [14.9gb]->[14.9gb]/[14.9gb]}
29079:[2019-04-15 20:29:44,959][WARN ][monitor.jvm ] [Node2] [gc][old][24838189][1073728] duration [10.1s], collections [1]/[10.7s], total [10.1s]/[20.5d], memory [15.8gb]->[15.8gb]/[15.8gb], all_pools {[young] [865.3mb]->[865.3mb]/[865.3mb]}{[survivor] [28.6mb]->[28mb]/[108.1mb]}{[old] [14.9gb]->[14.9gb]/[14.9gb]}
29081:[2019-04-15 20:30:06,087][WARN ][monitor.jvm ] [Node2] [gc][old][24838192][1073730] duration [10.1s], collections [1]/[10.8s], total [10.1s]/[20.5d], memory [15.8gb]->[15.8gb]/[15.8gb], all_pools {[young] [865.3mb]->[865.3mb]/[865.3mb]}{[survivor] [26.8mb]->[27.8mb]/[108.1mb]}{[old] [14.9gb]->[14.9gb]/[14.9gb]}
29084:[2019-04-15 20:30:26,809][WARN ][monitor.jvm ] [Node2] [gc][old][24838194][1073732] duration [10.1s], collections [1]/[10.7s], total [10.1s]/[20.5d], memory [15.8gb]->[15.8gb]/[15.8gb], all_pools {[young] [865.3mb]->[865.3mb]/[865.3mb]}{[survivor] [28.9mb]->[26mb]/[108.1mb]}{[old] [14.9gb]->[14.9gb]/[14.9gb]}
29086:[2019-04-15 20:30:47,545][WARN ][monitor.jvm ] [Node2] [gc][old][24838196][1073734] duration [10.1s], collections [1]/[10.7s], total [10.1s]/[20.5d], memory [15.8gb]->[15.8gb]/[15.8gb], all_pools {[young] [865.3mb]->[865.3mb]/[865.3mb]}{[survivor] [28.8mb]->[26.2mb]/[108.1mb]}{[old] [14.9gb]->[14.9gb]/[14.9gb]}
29088:[2019-04-15 20:31:08,211][WARN ][monitor.jvm ] [Node2] [gc][old][24838198][1073736] duration [10.3s], collections [1]/[10.7s], total [10.3s]/[20.5d], memory [15.8gb]->[15.8gb]/[15.8gb], all_pools {[young] [865.3mb]->[865.3mb]/[865.3mb]}{[survivor] [25.7mb]->[16.7mb]/[108.1mb]}{[old] [14.9gb]->[14.9gb]/[14.9gb]}
29091:[2019-04-15 20:31:40,079][WARN ][monitor.jvm ] [Node2] [gc][old][24838202][1073739] duration [10.1s], collections [1]/[10.7s], total [10.1s]/[20.5d], memory [15.8gb]->[15.8gb]/[15.8gb], all_pools {[young] [865.3mb]->[865.3mb]/[865.3mb]}{[survivor] [15.2mb]->[16mb]/[108.1mb]}{[old] [14.9gb]->[14.9gb]/[14.9gb]}