Cassandra HEAP Suggestion.. Need a help

Hi Team, I have 64GB of total system memory. 5 node cluster. x ~# free -m totalusedfree shared buff/cache available Mem: 64266 17549 41592 665124 46151 Swap: 0 0 0 xxx

Commitlogs are filling the Full Disk space and nodes are down

Hi Team, My Cassandra version : Apache Cassandra 3.0.13 Cassandra nodes are down due to Commitlogs are getting filled up until full disk size. [cid:image001.jpg@01D399E3.666CF940] With "Nodetool flush" I didn't see any commitlogs deleted. Can anyone tell me how to flush the commitlogs without

Cassandra nodes are down

Hi Team, I'm getting the below warnings. Please help me out to clear these issues. Apache Cassandra version : 3.0.13, 5 Node cluster INFO [main] 2018-01-29 16:58:19,487 NativeLibrary.java:167 - JNA mlockall successful WARN [main] 2018-01-29 16:58:19,488 StartupChecks.java:121 - jemalloc share

Cassandra Upgrade and Driver compatibility

Hi All, We are planning to upgrade the Apache Cassandra and CPP driver as below. Cassandra service version : Old - cassandra-3.0.6-1.noarch.rpm New - cassandra-3.0.13-1.noarch.rpm Cassandra driver version : Old - cassandra-cpp-driver-2.4.3-1.el7.centos.x86_64.rpm New - cassandra-cpp-driver-2.

Securing Cassandra database

Hi Team, We are using Apache Cassandra 3.0.13 version. As part of Cassandra database security, we have created database super user authentication, but from driver side we have default cql connection syntax as "cqlsh " not like "cqlsh -u username and -p password". So cqlsh connection failing f

issue in creating a role for cassandra database

Hi , I am getting the below issue while creating a role in Cassandra. Single node , Cqlsh is pointing to '127.0.0.1'. [cid:image001.png@01D358C3.8ABF82B0] Can anyone help me in this issue? Thanks, Bhargav

Cassandra issue “Unable to gossip with any seeds”

Hi Team, I am getting the below issue when I started a node. “Unable to gossip with any seeds” [cid:image003.jpg@01D2F4F3.8B790480] I am using Apache Cassandra 3.0.6 version. I have 5 nodes in the cluster,10.50.20.151 , 10.50.20.152 , 10.50.20.153 , 10.50.20.154 , 10.50.20.155 Seed nodes -

Maximum memory usage reached in cassandra!

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 g