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eeeb2da7bb
In dtest, we have
self.check_rows_on_node(node1, 2000)
self.check_rows_on_node(node2, 2000)
which introduce the following cluster operations:
1) Initially:
- node1 up
- node2 up
2) self.check_rows_on_node(node1, 2000)
- node2 down
- node2 up (A: node2 will call gossiper::real_mark_alive when node2 boots
up to mark node1 up)
3) self.check_rows_on_node(node2, 2000)
- node1 down (B: node1 will send shutdown gossip message to node2, node2
will mark node1 down)
- node1 up (C: when node1 is up, node2 will call
gossiper::real_mark_alive)
Since there is no guarantee the order of Operation A and Operation B, it
is possible node2 will mark node1 as status=shutdown and mark node1 is
UP.
In Operation C, node2 will call gossiper::real_mark_alive to mark node1
up, but since node2 might think node1 is already up, node2 will exit
early in gossiper::real_mark_alive and not log "InetAddress 127.0.0.1 is
now UP, status={}"
As a result, dtest fails to see node2 reports node1 is up when it boots
node1 and fail the test.
TimeoutError: 23 Nov 2018 10:44:19 [node2] Missing: ['127.0.0.1.* now UP']
In the log we can see node1 marked as DOWN and UP almost at the same time on node2:
INFO 2018-11-23 22:31:29,999 [shard 0] gossip - InetAddress 127.0.0.1 is now DOWN, status = shutdown
INFO 2018-11-23 22:31:30,006 [shard 0] gossip - InetAddress 127.0.0.1 is now UP, status = shutdown
Fixes #3940
Tests: dtest with 20 consecutive succesful runs
Message-Id: <996dc325cbcc3f94fc0b7569217aa65464eaaa1c.1543213511.git.asias@scylladb.com>
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.
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>