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871d1ebdd59ec241da7280bdb292cfe515e32fc8
Build progress virtual reader uses Scylla-specific
scylla_views_builds_in_progress table in order to represent
legacy views_builds_in_progress rows. The Scylla-specific table contains
additional cpu_id clustering key part, which is trimmed before returning
it to the user. That may cause duplicated clustering row fragments to be
emitted by the reader, which may cause undefined behaviour in consumers.
The solution is to keep track of previous clustering keys for each
partition and drop fragments that would cause duplication. That way if
any shard is still building a view, its progress will be returned,
and if many shards are still building, the returned value will indicate
the progress of a single arbitrary shard.
Fixes #4524
Tests:
unit(dev) + custom monotonicity checks from <tgrabiec@scylladb.com>
(cherry picked from commit 85a3a4b458)
…
cache_hitrate_calculator: do not ignore a future returned from gossiper::add_local_application_state
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Merge "mvcc: Fix incorrect schema version being used to copy the mutation when applying (#5099)" from Tomasz
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Scylla
Quick-start
$ git submodule update --init --recursive
$ sudo ./install-dependencies.sh
$ ./configure.py --mode=release
$ ninja-build -j4 # Assuming 4 system threads.
$ ./build/release/scylla
$ # Rejoice!
Please see HACKING.md for detailed information on building and developing Scylla.
Note: GCC >= 8.1.1 is require to compile Scylla.
Note: See frozen toolchain for a way to build and run on an older distribution.
Running Scylla
- Run Scylla
./build/release/scylla
- run Scylla with one CPU and ./tmp as data directory
./build/release/scylla --datadir tmp --commitlog-directory tmp --smp 1
- For more run options:
./build/release/scylla --help
Building Fedora RPM
As a pre-requisite, you need to install Mock on your machine:
# Install mock:
sudo yum install mock
# Add user to the "mock" group:
usermod -a -G mock $USER && newgrp mock
Then, to build an RPM, run:
./dist/redhat/build_rpm.sh
The built RPM is stored in /var/lib/mock/<configuration>/result directory.
For example, on Fedora 21 mock reports the following:
INFO: Done(scylla-server-0.00-1.fc21.src.rpm) Config(default) 20 minutes 7 seconds
INFO: Results and/or logs in: /var/lib/mock/fedora-21-x86_64/result
Building Fedora-based Docker image
Build a Docker image with:
cd dist/docker
docker build -t <image-name> .
Run the image with:
docker run -p $(hostname -i):9042:9042 -i -t <image name>
Contributing to Scylla
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