Tasks stuck forever #25863
Description
Opening a bug report from this forum entry:
https://discuss.elastic.co/t/get-tasks-hang-and-accumulate-on-5-4-2/92368
After several full cluster restarts there are still some queries left stuck, but at least, they don't grow.
For example this one:
"WVpcoLjFRlu1u_n6itJLQg:18857772" : {
"node" : "WVpcoLjFRlu1u_n6itJLQg",
"id" : 18857772,
"type" : "netty",
"action" : "indices:data/write/index",
"start_time_in_millis" : 1499661942368,
"running_time_in_nanos" : 1242244096666339,
"cancellable" : false
},
which couldn't finish in two weeks.
Please tell me if more information is needed to debug this.