Since we don't support Ubuntu 14.04 anymore, we can drop Upstart related code
from supervisor.[cc|hh].
Also, "#ifdef HAVE_LIBSYSTEMD" was for compiling Scylla on older distribution
which does not provide libsystemd, we nolonger need this since we always build
Scylla on latest Fedora.
Dropping HAVE_LIBSYSTEMD also means removing libsystemd from optional_packages
in configure.py, make it required library.
Note that we still may run Scylla without systemd such as our Docker image,
but sd_notify() does nothing when systemd does not detected, so we can ignore
such case.
Reference: https://www.freedesktop.org/software/systemd/man/sd_notify.html
Reference: https://github.com/systemd/systemd/blob/master/src/libsystemd/sd-daemon/sd-daemon.c
- introcduced "seastarx.hh" header, which does a "using namespace seastar";
- 'net' namespace conflicts with seastar::net, renamed to 'netw'.
- 'transport' namespace conflicts with seastar::transport, renamed to
cql_transport.
- "logger" global variables now conflict with logger global type, renamed
to xlogger.
- other minor changes
Transform the supervisor_notify() and related functions into
the "supervisor" class and place this class implementation in
a separate .cc file.
This is going to fix the compilation breakage of tests introduced
by a
commit 8014adc2a1
init: serialize the creation of system_traces KS objects
Signed-off-by: Vlad Zolotarov <vladz@scylladb.com>
Message-Id: <1483663955-20096-1-git-send-email-vladz@scylladb.com>
Serialize the creation of a system_traces KS objects when
they do not exist - the initial cluster boot.
Avoid creating them in parallel by different cluster Nodes
in order to avoid issue #420.
Signed-off-by: Vlad Zolotarov <vladz@scylladb.com>
Message-Id: <1483552503-12873-3-git-send-email-vladz@scylladb.com>
