Loki is not using memcache in the cluster

We have deployed a new loki cluster with memcache as the cache with tsdb,

memcached-chunks-loki-0 1/1 Running 0 6d15h
memcached-chunks-loki-1 1/1 Running 0 2d
memcached-chunks-loki-2 1/1 Running 0 6d7h
memcached-results-loki-0 1/1 Running 0 6d15h
memcached-results-loki-1 1/1 Running 0 2d
memcached-results-loki-2 1/1 Running 0 6d7h

when we check the logs, we could not see any connections

below are stats of cache

stats slabs
STAT 5:chunk_size 240
STAT 5:chunks_per_page 4369
STAT 5:total_pages 1
STAT 5:total_chunks 4369
STAT 5:used_chunks 0
STAT 5:free_chunks 4369
STAT 5:free_chunks_end 0
STAT 5:get_hits 1
STAT 5:cmd_set 1
STAT 5:delete_hits 0
STAT 5:incr_hits 0
STAT 5:decr_hits 0
STAT 5:cas_hits 0
STAT 5:cas_badval 0
STAT 5:touch_hits 0
STAT 6:chunk_size 304
STAT 6:chunks_per_page 3449
STAT 6:total_pages 1
STAT 6:total_chunks 3449
STAT 6:used_chunks 0
STAT 6:free_chunks 3449
STAT 6:free_chunks_end 0
STAT 6:get_hits 0
STAT 6:cmd_set 3
STAT 6:delete_hits 0
STAT 6:incr_hits 0
STAT 6:decr_hits 0
STAT 6:cas_hits 0
STAT 6:cas_badval 0
STAT 6:touch_hits 0
STAT 7:chunk_size 384
STAT 7:chunks_per_page 2730
STAT 7:total_pages 1
STAT 7:total_chunks 2730
STAT 7:used_chunks 0
STAT 7:free_chunks 2730
STAT 7:free_chunks_end 0
STAT 7:get_hits 0
STAT 7:cmd_set 2
STAT 7:delete_hits 0
STAT 7:incr_hits 0
STAT 7:decr_hits 0
STAT 7:cas_hits 0
STAT 7:cas_badval 0
STAT 7:touch_hits 0
STAT 8:chunk_size 480
STAT 8:chunks_per_page 2184
STAT 8:total_pages 1
STAT 8:total_chunks 2184
STAT 8:used_chunks 0
STAT 8:free_chunks 2184
STAT 8:free_chunks_end 0
STAT 8:get_hits 4
STAT 8:cmd_set 11
STAT 8:delete_hits 0
STAT 8:incr_hits 0
STAT 8:decr_hits 0
STAT 8:cas_hits 0
STAT 8:cas_badval 0
STAT 8:touch_hits 0
STAT 9:chunk_size 600
STAT 9:chunks_per_page 1747
STAT 9:total_pages 1
STAT 9:total_chunks 1747
STAT 9:used_chunks 0
STAT 9:free_chunks 1747
STAT 9:free_chunks_end 0
STAT 9:get_hits 0
STAT 9:cmd_set 2
STAT 9:delete_hits 0
STAT 9:incr_hits 0
STAT 9:decr_hits 0
STAT 9:cas_hits 0
STAT 9:cas_badval 0
STAT 9:touch_hits 0
STAT 10:chunk_size 752
STAT 10:chunks_per_page 1394
STAT 10:total_pages 1
STAT 10:total_chunks 1394
STAT 10:used_chunks 0
STAT 10:free_chunks 1394
STAT 10:free_chunks_end 0
STAT 10:get_hits 6
STAT 10:cmd_set 15
STAT 10:delete_hits 0
STAT 10:incr_hits 0
STAT 10:decr_hits 0
STAT 10:cas_hits 0
STAT 10:cas_badval 0
STAT 10:touch_hits 0
STAT 13:chunk_size 1480
STAT 13:chunks_per_page 708
STAT 13:total_pages 1
STAT 13:total_chunks 708
STAT 13:used_chunks 0
STAT 13:free_chunks 708
STAT 13:free_chunks_end 0
STAT 13:get_hits 1
STAT 13:cmd_set 2
STAT 13:delete_hits 0
STAT 13:incr_hits 0
STAT 13:decr_hits 0
STAT 13:cas_hits 0
STAT 13:cas_badval 0
STAT 13:touch_hits 0
STAT 14:chunk_size 1856
STAT 14:chunks_per_page 564
STAT 14:total_pages 1
STAT 14:total_chunks 564
STAT 14:used_chunks 0
STAT 14:free_chunks 564
STAT 14:free_chunks_end 0
STAT 14:get_hits 0
STAT 14:cmd_set 1
STAT 14:delete_hits 0
STAT 14:incr_hits 0
STAT 14:decr_hits 0
STAT 14:cas_hits 0
STAT 14:cas_badval 0
STAT 14:touch_hits 0
STAT 18:chunk_size 4544
STAT 18:chunks_per_page 230
STAT 18:total_pages 1
STAT 18:total_chunks 230
STAT 18:used_chunks 0
STAT 18:free_chunks 230
STAT 18:free_chunks_end 0
STAT 18:get_hits 1
STAT 18:cmd_set 2
STAT 18:delete_hits 0
STAT 18:incr_hits 0
STAT 18:decr_hits 0
STAT 18:cas_hits 0
STAT 18:cas_badval 0
STAT 18:touch_hits 0
STAT 20:chunk_size 7104
STAT 20:chunks_per_page 147
STAT 20:total_pages 1
STAT 20:total_chunks 147
STAT 20:used_chunks 0
STAT 20:free_chunks 147
STAT 20:free_chunks_end 0
STAT 20:get_hits 0
STAT 20:cmd_set 2
STAT 20:delete_hits 0
STAT 20:incr_hits 0
STAT 20:decr_hits 0
STAT 20:cas_hits 0
STAT 20:cas_badval 0
STAT 20:touch_hits 0
STAT 21:chunk_size 8880
STAT 21:chunks_per_page 118
STAT 21:total_pages 1
STAT 21:total_chunks 118
STAT 21:used_chunks 0
STAT 21:free_chunks 118
STAT 21:free_chunks_end 0
STAT 21:get_hits 0
STAT 21:cmd_set 2
STAT 21:delete_hits 0
STAT 21:incr_hits 0
STAT 21:decr_hits 0
STAT 21:cas_hits 0
STAT 21:cas_badval 0
STAT 21:touch_hits 0
STAT 23:chunk_size 13880
STAT 23:chunks_per_page 75
STAT 23:total_pages 1
STAT 23:total_chunks 75
STAT 23:used_chunks 0
STAT 23:free_chunks 75
STAT 23:free_chunks_end 0
STAT 23:get_hits 0
STAT 23:cmd_set 1
STAT 23:delete_hits 0
STAT 23:incr_hits 0
STAT 23:decr_hits 0
STAT 23:cas_hits 0
STAT 23:cas_badval 0
STAT 23:touch_hits 0
STAT 24:chunk_size 17352
STAT 24:chunks_per_page 60
STAT 24:total_pages 1
STAT 24:total_chunks 60
STAT 24:used_chunks 0
STAT 24:free_chunks 60
STAT 24:free_chunks_end 0
STAT 24:get_hits 0
STAT 24:cmd_set 1
STAT 24:delete_hits 0
STAT 24:incr_hits 0
STAT 24:decr_hits 0
STAT 24:cas_hits 0
STAT 24:cas_badval 0
STAT 24:touch_hits 0
STAT 25:chunk_size 21696
STAT 25:chunks_per_page 48
STAT 25:total_pages 1
STAT 25:total_chunks 48
STAT 25:used_chunks 1
STAT 25:free_chunks 47
STAT 25:free_chunks_end 0
STAT 25:get_hits 0
STAT 25:cmd_set 2
STAT 25:delete_hits 0
STAT 25:incr_hits 0
STAT 25:decr_hits 0
STAT 25:cas_hits 0
STAT 25:cas_badval 0
STAT 25:touch_hits 0
STAT 26:chunk_size 27120
STAT 26:chunks_per_page 38
STAT 26:total_pages 1
STAT 26:total_chunks 38
STAT 26:used_chunks 0
STAT 26:free_chunks 38
STAT 26:free_chunks_end 0
STAT 26:get_hits 0
STAT 26:cmd_set 1
STAT 26:delete_hits 0
STAT 26:incr_hits 0
STAT 26:decr_hits 0
STAT 26:cas_hits 0
STAT 26:cas_badval 0
STAT 26:touch_hits 0
STAT 27:chunk_size 33904
STAT 27:chunks_per_page 30
STAT 27:total_pages 1
STAT 27:total_chunks 30
STAT 27:used_chunks 1
STAT 27:free_chunks 29
STAT 27:free_chunks_end 0
STAT 27:get_hits 0
STAT 27:cmd_set 1
STAT 27:delete_hits 0
STAT 27:incr_hits 0
STAT 27:decr_hits 0
STAT 27:cas_hits 0
STAT 27:cas_badval 0
STAT 27:touch_hits 0
STAT 28:chunk_size 42384
STAT 28:chunks_per_page 24
STAT 28:total_pages 1
STAT 28:total_chunks 24
STAT 28:used_chunks 1
STAT 28:free_chunks 23
STAT 28:free_chunks_end 0
STAT 28:get_hits 2
STAT 28:cmd_set 5
STAT 28:delete_hits 0
STAT 28:incr_hits 0
STAT 28:decr_hits 0
STAT 28:cas_hits 0
STAT 28:cas_badval 0
STAT 28:touch_hits 0
STAT active_slabs 17
STAT total_malloced 17825792