scylla-server is failing to start

Question

After installing scylla server its failing to start with following error message,

Jun 04 07:07:56 localhost.localdomain scylla[29145]: Scylla version 2.3.5-0.20190417.0e0f9143c starting ... Jun 04 07:07:56 localhost.localdomain scylla[29145]: [shard 0] init - Only 476 MiB per shard; this is below the recommended minimum of 1 GiB/shard; terminating.Configure more memory (--memory option) or decrease shard count (--smp option). Jun 04 07:07:56 localhost.localdomain scylla[29145]: [shard 0] seastar - Exiting on unhandled exception: std::runtime_error (configuration (memory per shard too low)) Jun 04 07:07:56 localhost.localdomain systemd[1]: scylla-server.service: main process exited, code=exited, status=1/FAILURE Jun 04 07:07:56 localhost.localdomain systemd[1]: Failed to start Scylla Server. -- Subject: Unit scylla-server.service has failed -- Defined-By: systemd

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-- Unit scylla-server.service has failed.

-- The result is failed. Jun 04 07:07:56 localhost.localdomain systemd[1]: Dependency failed for Scylla JMX. -- Subject: Unit scylla-jmx.service has failed -- Defined-By: systemd

-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel

-- Unit scylla-jmx.service has failed.

-- The result is dependency. Jun 04 07:07:56 localhost.localdomain systemd[1]: Job scylla-jmx.service/start failed with result 'dependency'. Jun 04 07:07:56 localhost.localdomain systemd[1]: Unit scylla-server.service entered failed state. Jun 04 07:07:56 localhost.localdomain systemd[1]: scylla-server.service failed.

free -m total used free shared buff/cache available Mem: 1838 179 1038 25 621 1445 Swap: 2048 113 1935

Answer 1

How many cpus do you have in the machine? lscpu

I'm guessing 4 cpus since the error is: Only 476 MiB per shard; this is below the recommended minimum of 1 GiB/shard; terminating.Configure more memory (--memory option) or decrease shard count (--smp option)

Go to /etc/scylla.d/cpuset.conf and add change to the CPUSET="--smp 1" OR (if you are just testing on a dev environment enable developement mode inside /etc/scylla.d/dev-mode.conf.