Florian Forster [Wed, 26 Oct 2016 15:09:17 +0000 (17:09 +0200)]
src/daemon/utils_time.h: Use composite literals in all macros.
This allows to take the address of all these macros. Unfortunately, this
means we require special macors for initializing static variables, but
fortunately this is not very commonly done.
common.c: Use _LINUX_CAPABILITY_VERSION_3 in cap_header
While check_capability() function already requires
_LINUX_CAPABILITY_VERSION_3 via "#ifdef" since commit 448627953c we still
set the cap_header's version to deprecated _LINUX_CAPABILITY_VERSION. This
results in a warning like
> capability: warning: `collectd' uses 32-bit capabilities (legacy support in use)
from the kernel when a plugin (like iptables) calls our check_capability()
function.
With this commit we will set cap_header to kernel's current capability
version (_LINUX_CAPABILITY_VERSION_3), which is default since
kernel 2.6.26.
Despite this mistake is also found in the collectd-5.5 and 5.6 lines,
the fix is scheduled for 5.7.0 because it will change 2 VL's
type_instances, possibly breaking users' dashboards or alerting.
processes plugin generates spikes on (re)start. That is caused by
wrong counter logic: When collectd (re)started, monitored processes,
which was started before collectd, have non-zero values in
cpu_user/cpu_system/vmem_minflt/vmem_majflt, so `want_init` is false.
What produces spike.
At other hand, processes which are started between read cycles, should
be fully accounted without initialization. So, we must skip only first
cycle for these counters.
Pavel Rochnyack [Mon, 10 Oct 2016 07:07:55 +0000 (13:07 +0600)]
processes plugin: Remove unused fields from structures
Fields cpu_user, cpu_system, vmem_minflt, vmem_majflt are always equal to zero for new entries (which are passed to ps_list_add()).
Values of these fields are not used in `procstat_t` entries too. So, that can be safely removed.
Pshyk, SerhiyX [Tue, 4 Oct 2016 14:31:58 +0000 (15:31 +0100)]
rdtmon: Addressed PR comments
1. use size_t type for all arrays and indexes
2. change malloc()/memset() to calloc()
3. fix minor code style issues
4. add range validation of core id values
5. use 'bytes' type for LLC value
6. add 'memory_bandwidth' type for MBM values
Weirdly, this only surfaces when building with CFLAGS="-O0 -g".
In file included from ./daemon/common.h:33:0,
from grpc.cc:44:
grpc.cc: In member function 'virtual grpc::Status CollectdImpl::PutValues(grpc::ServerContext*, grpc::ServerReader<collectd::PutValuesRequest>*, collectd::PutValuesResponse*)':
./daemon/plugin.h:113:56: sorry, unimplemented: non-trivial designated initializers not supported
#define VALUE_LIST_INIT { .values = NULL, .meta = NULL }
^
grpc.cc:294:22: note: in expansion of macro 'VALUE_LIST_INIT'
value_list_t vl = VALUE_LIST_INIT;
^
The rdtmon plugin collects information provided by monitoring features of
Intel Resource Director Technology (Intel(R) RDT) like Cache Monitoring
Technology (CMT), Memory Bandwidth Monitoring (MBM).
src/daemon/plugin.[ch]: Make the user_data_t* const.
That is, user_data_t* passed to register_* functions. The actual callbacks
are still getting a user_data_t* since they, in theory, would be able to
modify the pointer stored in .data.
Sebastian Harl [Sun, 5 Jun 2016 13:23:41 +0000 (15:23 +0200)]
command parser: Add a vector-based interface.
The new interface expects a parsed list of fields. Parsing of input buffers
is now done centrally in the generic code and the existing parser is a
wrapper around this and the new vector-based parser. The actual command
parsers (PUTVAL for now) receive the parsed list of fields.
As a side-effect, this changes the parser behavior a little:
- "foo=a string with spaces or \\ special characters" is now valid syntax
for specifying options in addition to foo="value with spaces, etc.".
- foo= is now a valid option even without quotes around the empty value.
Sebastian Harl [Sun, 5 Jun 2016 11:59:49 +0000 (13:59 +0200)]
Add a generic interface for parsing the text protocol.
Implement it for PUTVAL for now.
The text protocol is used in multiple places and the parser will avoid code
duplication in client programs which can, instead, use it to generate the
respective requests.
Use the 'cmd_' prefix for public functions related to command handling.
Sebastian Harl [Sat, 24 Sep 2016 10:55:40 +0000 (12:55 +0200)]
RRDCacheD plugin: Try to reconnect upon failed operations.
The RRD client library does not provide means to check the status of a
connection and there's no way to detect that the connection is broken after,
for example, the daemon restarted. To work around that, try to reconnect if
any client operation fails.
A copy of the values was made in plugin_dispatch_values_internal(). This
code predates the "write queue", which means that each value list (and
its values) are copied anyway and vl->values will always point to heap
memory.
projects / thirdparty / collectd.git / log
