mirror of
https://github.com/scylladb/scylladb.git
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dee9060b12
"Fixes #262 Handles CL disk size exceeding configured max size by calling flush handlers for each dirty CF id / high replay_position mark. (Instead of uncontrolled delete as previously). * Increased default max disk size to 8GB. Same as Origin/scylla.yaml (so no real change, but synced). * Divide the max disk size by cpus (so sum of all shards == max) * Abstract flush callbacks in CL * Handler in DB that initiates memtable->sstable writes when called. Note that the flush request is done "syncronously" in new_segment() (i.e. when getting a new segment and crossing threshold). This is however more or less congruent with Origin, which will do a request-sync in the corresponding case. Actual dealing with the request should at least in production code however be done async, and in DB it is, i.e. we initiate sstable writes. Hopefully they finish soon, and CL segments will be released (before next segment is allocated). If the flush request does _not_ eventually result in any CF:s becoming clean and segments released we could potentially be issuing flushes repeatedly, but never more often than on every new segment."
#Urchin
##Building Urchin
In addition to required packages by Seastar, the following packages are required by Urchin.
Submodules
Urchin uses submodules, so make sure you pull the submodules first by doing:
git submodule init
git submodule update --recursive
Building urchin 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 urchin on Ubuntu 14.04
Installing required packages:
sudo apt-get install libyaml-cpp-dev liblz4-dev zlib1g-dev libsnappy-dev libjsoncpp-dev
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