Hi Cassandra users, I am getting "Maximum memory usage reached (536870912 bytes), cannot allocate chunk of 1048576 bytes" . As a remedy I have changed the off heap memory usage limit cap i.e file_cache_size_in_mb parameter in cassandra.yaml from 512 to 1024.
But now again the increased limit got filled up and throwing a message "Maximum memory usage reached (1073741824 bytes), cannot allocate chunk of 1048576 bytes" This issue occurring when redistribution of index's happening ,due to this Cassandra nodes are still UP but read requests are getting failed from application side. My configuration details are as below: 5 node cluster , each node with 68 disks, each disk is 3.7 TB Total CPU cores - 8 total Mem: 377G used 265G free 58G shared 378M buff/cache 53G available 104G MAX_HEAP_SIZE is 4GB file_cache_size_in_mb: 1024 memtable heap space is commented in yaml file as below: # memtable_heap_space_in_mb: 2048 # memtable_offheap_space_in_mb: 2048 Can anyone please suggest the solution for this issue. Thanks in advance ! Thanks, Bhargav M
