question Hive LLAP - configuration - slowness - tasks killed in Support Questions

question Hive LLAP - configuration - slowness - tasks killed in Support Questions https://community.cloudera.com/t5/Support-Questions/Hive-LLAP-configuration-slowness-tasks-killed/m-p/334295#M231704 Hi, I'm writing to you because I have some trouble or misunderstanding with Hive LLAP.LLAP is slow when executing queries and I feel like LLAP is not well configured. I checked the jmx metrics of my LLAP daemons and I saw that : <LI-CODE lang="python">"ExecutorTotalRequestsHandled" : 89065, "ExecutorTotalSuccess" : 22893, "ExecutorTotalFailed" : 58, "ExecutorTotalKilled" : 21724, "ExecutorTotalEvictedFromWaitQueue" : 43678, "ExecutorTotalRejectedRequests" : 406234, "ExecutorTotalPreemptionTimeToKill" : 73450159, "ExecutorTotalPreemptionTimeLost" : 1083694998,</LI-CODE> Each deamon has the same behavior. Most of executed tasks are killed or evicted (only 25% of sucess tasks...) and I think this is one of the reason of the slowness. Below my configuration :- 75 nodes reserved for LLAP (node labelling).- 280 GB - 40 CPUs per node.- 220 GB - 36 CPU per daemon.- Daemon : 144 GB for the heap, 60 GB for the cache, 16 GB for the headroom.- hive.tez.container.size = 4 G- tez.am.resource.memory.mb = 12 G- hive.llap.io.threadpool.size = 36 Does this configuration look well for you ? Also, when I check the execution of some queries, I can see that : <LI-CODE lang="markup">Map 1: 855(+40426,-1167)/41281 Reducer 2: 0/1009</LI-CODE> It means that "Map 1" has 41281 tasks map, 855 are completed and 40426 are running (and 1167 are pending) but how it that possible because I have 75 daemon and 36 CPUs per deamon (75*36 = 2700), So I should have at most 2700 tasks running (1 CPU per task), no ? What do you think ? Any ideas, suggestions or questions would be useful. Thanks a lot for your help.  Thu, 20 Jan 2022 15:13:47 GMT Simon230 2022-01-20T15:13:47Z