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b2fef14ada
Currently, we are calculating truncated_at during truncate() independently for each shard. It will work if we're lucky, but it is fairly easy to trigger cases in which each shard will end up with a slightly different time. The main problem here, is that this time is used as the snapshot name when auto snapshots are enabled. Previous to my last fixes, this would just generate two separate directories in this case, which is wrong but not severe. But after the fix, this means that both shards will wait for one another to synchronize and this will hang the database. Fix this by making sure that the truncation time is calculated before invoke_on_all in all needed places. Signed-off-by: Glauber Costa <glommer@scylladb.com>
#Scylla
##Building Scylla
In addition to required packages by Seastar, the following packages are required by Scylla.
Submodules
Scylla uses submodules, so make sure you pull the submodules first by doing:
git submodule init
git submodule update --recursive
Building scylla on Fedora
Installing required packages:
sudo yum install yaml-cpp-devel lz4-devel zlib-devel snappy-devel jsoncpp-devel thrift-devel antlr3-tool antlr3-C++-devel libasan libubsan
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 -i -t <image name>