Replace Dead Cassandra Node

nospam@example.com (Raymond P. Burkholder) — Fri, 02 Aug 2019 17:07:05 +0000

To test Cassandra replication, I removed a container containing a Cassandra node. Then rebuilt the container. To attach the Cassandra node using an existing/replaced address, using instructions from Replace a dead node in Cassandra, the trick is to add

JVM_OPTS="$JVM_OPTS -Dcassandra.replace_address=x,x,x,x"

to the end of /etc/cassandra/cassandra-env.sh, and remove the line after the node has re-connected.

Debian Install Cassandra with .deb on Buster

nospam@example.com (Raymond P. Burkholder) — Thu, 01 Aug 2019 19:48:09 +0000

A manual method is used as the cassandra pool is behind a number of redirects and apt-cacher-ng does not seem to handle the interactions properly.

# dpkg -i cassandra_3.11.4_all.deb 
Selecting previously unselected package cassandra.
(Reading database ... 12644 files and directories currently installed.)
Preparing to unpack cassandra_3.11.4_all.deb ...
Unpacking cassandra (3.11.4) ...
dpkg: dependency problems prevent configuration of cassandra:
 cassandra depends on openjdk-8-jre-headless | java8-runtime; however:
  Package openjdk-8-jre-headless is not installed.
  Package java8-runtime is not installed.
 cassandra depends on python (>= 2.7); however:
  Package python is not installed.

dpkg: error processing package cassandra (--install):
 dependency problems - leaving unconfigured
Processing triggers for systemd (241-5) ...
Errors were encountered while processing:
 cassandra
# apt-get -f install
Reading package lists... Done
Building dependency tree
Reading state information... Done
Correcting dependencies... Done
The following additional packages will be installed:
....

With this version of Java:

# java -version
openjdk version "11.0.4" 2019-07-16
OpenJDK Runtime Environment (build 11.0.4+11-post-Debian-1deb10u1)
OpenJDK 64-Bit Server VM (build 11.0.4+11-post-Debian-1deb10u1, mixed mode, sharing)

Some changes need to be made to the jvm options file:

#diff /etc/cassandra/jvm.options.original /etc/cassandra/jvm.options
102c102
< -XX:ThreadPriorityPolicy=42
---
> # -XX:ThreadPriorityPolicy=42
203c203
< -XX:+UseParNewGC
---
> # -XX:+UseParNewGC
247,251c247,251
< -XX:+PrintGCDateStamps
< -XX:+PrintHeapAtGC
< -XX:+PrintTenuringDistribution
< -XX:+PrintGCApplicationStoppedTime
< -XX:+PrintPromotionFailure
---
> #-XX:+PrintGCDateStamps
> #-XX:+PrintHeapAtGC
> #-XX:+PrintTenuringDistribution
> #-XX:+PrintGCApplicationStoppedTime
> #-XX:+PrintPromotionFailure
254,256c254,256
< -XX:+UseGCLogFileRotation
< -XX:NumberOfGCLogFiles=10
< -XX:GCLogFileSize=10M
---
> #-XX:+UseGCLogFileRotation
> #-XX:NumberOfGCLogFiles=10
> #-XX:GCLogFileSize=10M

But 'nodetool status' will abort with a NullPtrException, so can't use cassandra 3.11 on Buster. It will need to be installed on Stretch. Cassandra 4 may work on Buster.

Raymond P. Burkholder - Things I Do - Cassandra

Replace Dead Cassandra Node

Debian Install Cassandra with .deb on Buster

Cassandra