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Import Cassandra packages for Jessie
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The production Cassandra cluster will run Jessie from the start. Currently there aren't any Cassandra packages in our Jessie repo (at least in labs), so we need to import Cassandra. We are generally using the Apache packages: http://wiki.apache.org/cassandra/DebianPackaging

We have been testing with both 2.0 and 2.1 so far. 2.1.2 actually looks fairly stable. It also has some good improvements. The most relevant for us are probably the ability to tune the number of entries to cache in memory per partition for cacheable workloads (read: only keep latest revision of title in memory), incremental repair & off-heap memtables.

I think it's worth starting with 2.1 even if it means that we'll take a small risk of running into some unforeseen issue.

See also: full changelog.

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StatusSubtypeAssignedTask
· · ·
Resolved• GWickeT1228 RESTbase deployment
ResolvedAndrewT88850 Import Cassandra packages for Jessie
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Event Timeline

• GWicke created this task.Feb 6 2015, 9:52 PM
• GWicke raised the priority of this task from to Needs Triage.
• GWicke updated the task description. (Show Details)
• GWicke added a project: acl*sre-team.
• GWicke added subscribers: • GWicke, akosiaris, faidon, fgiunchedi.
Restricted Application added a subscriber: Aklapper. · View Herald TranscriptFeb 6 2015, 9:52 PM
• GWicke renamed this task from Import Cassandra 2.1 packages for Jessie to Import Cassandra packages for Jessie.Feb 6 2015, 9:52 PM
• GWicke added a parent task: T1228: RESTbase deployment.
• GWicke added a project: RESTBase.
• GWicke set Security to None.
Andrew subscribed.Feb 6 2015, 10:02 PM

The link https://wiki.apache.org/cassandra/DebianPackaging is currently down. I'll try to remember to revisit this, but y'all should bug me on IRC any time the site is up and I will do this.

Andrew claimed this task.Feb 6 2015, 10:03 PM
Andrew triaged this task as Medium priority.
Andrew added a comment.Feb 6 2015, 10:20 PM

jessie-wikimedia|thirdparty|i386: cassandra 2.1.2
jessie-wikimedia|thirdparty|i386: cassandra-tools 2.1.2

Please confirm that this works, or let me know if you need other packages.

• GWicke closed this task as Resolved.Feb 6 2015, 11:26 PM

Verified working in labs. Thank you, @Andrew!

faidon mentioned this in rOPUPf7af4cc5a874: reprepro: switch Cassandra to 2.1, add to jessie.Feb 7 2015, 9:57 AM
faidon added a comment.Feb 7 2015, 10:01 AM

I fixed this in a better way: adjusting our reprepro config to point to 2.1 (and also install to jessie). This means that a simple "reprepro update" should just get us the latest and greatest and also means that we get crypto verification of upstream for free.

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