Nadav Har'El da4da6afbf alternator: fix PutItem to really replace item.
The PutItem operation, and also the PutRequest of BatchWriteItem, are
supposed to completely replace the item - not to merge the new value with
the previous value. We implemented this wrongly - we just wrote the new
item forgetting a tombstone to remove the old item.

So this patch fixes these operations, and adds tests which confirm the
fix (as usual, these tests pass on DynamoDB, failed on Alternator before
this patch, and pass after the patch).

Signed-off-by: Nadav Har'El <nyh@scylladb.com>
2019-09-11 15:20:55 +03:00
2019-08-05 14:55:53 +02:00
2019-09-09 15:15:34 +03:00
2019-09-03 07:43:35 -07:00
2019-08-05 14:55:53 +02:00
2019-08-05 14:55:53 +02:00
2019-02-20 08:03:46 -08:00
2019-07-29 17:15:51 +02:00
2019-03-28 14:21:10 +02:00
2019-05-07 09:55:53 +03:00
2019-08-14 10:02:00 -07:00
2019-09-07 10:07:33 -07:00
2019-06-17 13:09:54 +01:00
2019-08-05 14:55:53 +02:00

Scylla

Quick-start

To get the build going quickly, Scylla offers a frozen toolchain which would build and run Scylla using a pre-configured Docker image. Using the frozen toolchain will also isolate all of the installed dependencies in a Docker container. Assuming you have met the toolchain prerequisites, which is running Docker in user mode, building and running is as easy as:

$ ./tools/toolchain/dbuild ./configure.py
$ ./tools/toolchain/dbuild ninja build/release/scylla
$ ./tools/toolchain/dbuild ./build/release/scylla --developer-mode 1

Please see HACKING.md for detailed information on building and developing Scylla.

Note: GCC >= 8.1.1 is required to compile Scylla.

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

Hacking howto Guidelines for contributing

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