Wrap the content of macro with do/while to make it safer as per code review comment
collectdctl command hangs on AIX and returns error 0 on Solaris.
Summary:
Problem: collectdctl command hangs on AIX and returns error 0 on Solaris.
Root cause - client (collectdctl) and server (collectd daemon) are using fprintf to communicate using Unix domain socket, Since fprintf buffers, command sent by client did not reach server, since client does not get the response, it closes the socket which forces the client to flush the command, now server receives the command, when responding, it gets socket error because the client already closed the socket.
Solution: Added flush after all fprintf calls.
Test Plan: Tested collectdctl on AIX and SunOS for listval, getval commands
Reviewers: skhajamo
Reviewed By: skhajamo
CC: arcyd
Differential Revision: https://all.phab.dev.bloomberg.com/D155584
Summary:
Problem: collectdctl command hangs on AIX and returns error 0 on Solaris.
Root cause - client (collectdctl) and server (collectd daemon) are using fprintf to communicate using Unix domain socket, Since fprintf buffers, command sent by client did not reach server, since client does not get the response, it closes the socket which forces the client to flush the command, now server receives the command, when responding, it gets socket error because the client already closed the socket.
Solution: Added flush after all fprintf calls.
Test Plan: Tested collectdctl on AIX and SunOS for listval, getval commands
Reviewers: skhajamo
Reviewed By: skhajamo
CC: arcyd
Differential Revision: https://all.phab.dev.bloomberg.com/D155584
Merge branch 'collectd-4.10' into collectd-5.3
Revert "Let snmp_synch_response deal with PDU freeing"
This reverts commit e767dc103a142e1c57800f06a9c384f21a48aef5.
The proper fix to this issue is in the collectd-4.10 branch. See also
79e90bba.
This reverts commit e767dc103a142e1c57800f06a9c384f21a48aef5.
The proper fix to this issue is in the collectd-4.10 branch. See also
79e90bba.
snmp: avoid freeing req under normal operation
Equivalent patch to 79e90bba5, to avoid issue #804 introduced while
fixing #610.
Equivalent patch to 79e90bba5, to avoid issue #804 introduced while
fixing #610.
Let snmp_synch_response deal with PDU freeing
When reading from tables, upon errors the PDUs sent are already
freed by snmp_synch_response since they are right after
snmp_send is called.
This commit syncs collectd's approach with other occurences of
snmp_synch_response calls.
There might be a few corner cases where we leak PDUs, but it
is unclear how to check for those since we would need to
have an indication that snmp_send was never called, which
as far as I can tell is not possible.
The potential for failure in snmp_send is rather low and will
be easily spotted though, since when crafting invalid PDUs
snmp send will constantly fail and since valid configurations
can never leak memory.
This fixes #804
When reading from tables, upon errors the PDUs sent are already
freed by snmp_synch_response since they are right after
snmp_send is called.
This commit syncs collectd's approach with other occurences of
snmp_synch_response calls.
There might be a few corner cases where we leak PDUs, but it
is unclear how to check for those since we would need to
have an indication that snmp_send was never called, which
as far as I can tell is not possible.
The potential for failure in snmp_send is rather low and will
be easily spotted though, since when crafting invalid PDUs
snmp send will constantly fail and since valid configurations
can never leak memory.
This fixes #804
Merge pull request #796 from mfournier/write_redis-colon-mistake
write_redis: re-add colon dropped in b7984797 + manpage
write_redis: re-add colon dropped in b7984797 + manpage
Link aggregation.so to libm.so
Conflicts:
src/Makefile.am
Conflicts:
src/Makefile.am
Merge pull request #765 from tokkee/sh/write-err
Use the complain mechanism to report write failures.
Use the complain mechanism to report write failures.
network: don't enable gcrypt thread callbacks when gcrypt recent enough
From `gcrypt.h`:
> NOTE: Since Libgcrypt 1.6 the thread callbacks are not anymore used.
> However we keep it to allow for some source code compatibility if used
> in the standard way.
Otherwise, we get a deprecation warning which is turned into an error:
```
CC libcollectdclient_la-network_buffer.lo
../../../src/libcollectdclient/network_buffer.c:58:15: error: 'gcry_thread_cbs' is deprecated (declared at /usr/include/gcrypt.h:213) [-Werror=deprecated-declarations]
GCRY_THREAD_OPTION_PTHREAD_IMPL;
```
Fixes: #632
From `gcrypt.h`:
> NOTE: Since Libgcrypt 1.6 the thread callbacks are not anymore used.
> However we keep it to allow for some source code compatibility if used
> in the standard way.
Otherwise, we get a deprecation warning which is turned into an error:
```
CC libcollectdclient_la-network_buffer.lo
../../../src/libcollectdclient/network_buffer.c:58:15: error: 'gcry_thread_cbs' is deprecated (declared at /usr/include/gcrypt.h:213) [-Werror=deprecated-declarations]
GCRY_THREAD_OPTION_PTHREAD_IMPL;
```
Fixes: #632
add write_redis to manpage
write_redis: re-add colon dropped in b7984797
When running f3706b0b87, the following command gets sent to redis:
"ZADD" "collectd/hostname/entropy/entropy" "1415487432.000000" "1415487432:932"
Meaning the value actually stored, and later returned by redis is:
"<timstamp>:<value>".
b7984797 accidentally dropped the comma separating the timestamp and the
value, which leads the plugin to store a somewhat confusing value in
redis:
"ZADD" "collectd/hostname/entropy/entropy" "1415487432.000000" "1415487432932"
When running f3706b0b87, the following command gets sent to redis:
"ZADD" "collectd/hostname/entropy/entropy" "1415487432.000000" "1415487432:932"
Meaning the value actually stored, and later returned by redis is:
"<timstamp>:<value>".
b7984797 accidentally dropped the comma separating the timestamp and the
value, which leads the plugin to store a somewhat confusing value in
redis:
"ZADD" "collectd/hostname/entropy/entropy" "1415487432.000000" "1415487432932"
Merge pull request #764 from tokkee/sh/collectd-5.3
write_graphite plugin: Improved error reporting when connecting to the server.
write_graphite plugin: Improved error reporting when connecting to the server.
fix grammar in plugin loading error message
"cause for this problem are" => "cause for this problem is"
"cause for this problem are" => "cause for this problem is"
logfile: avoid total silence in case of a misconfiguration
Basically the same patch that was applied to syslog.c in 84c38056
Basically the same patch that was applied to syslog.c in 84c38056
correct typo in error message
Syslog: if we can't find the loglevel specified by the configuration string default to 'info' and warn about the unknown configuration option. no way to make syslog totaly silent anymore.
Use the complain mechanism to report write failures.
This ensures that we don't spam the log for each submitted value. Instead, an
exponential backup is used to report permanent errors starting at one message
per second.
This ensures that we don't spam the log for each submitted value. Instead, an
exponential backup is used to report permanent errors starting at one message
per second.
write_graphite plugin: Improved error reporting when connecting to the server.
Bit shift right by 8 to get return code from exit status
Pull-Request: #741
Signed-off-by: Florian Forster <octo@collectd.org>
Pull-Request: #741
Signed-off-by: Florian Forster <octo@collectd.org>
cpu plugin: Remove temperature code for Mac OS X.
This code would throw an error for some systems, because the temperature
couldn't be read. Since the plugin still works in general, this was very
confusing to users. Becaus the temperature, even when read sucessfully, was
never dispatched, remove the code entirely. We might want to add this back to
the apple_sensors plugin eventually.
Fixes: #22
This code would throw an error for some systems, because the temperature
couldn't be read. Since the plugin still works in general, this was very
confusing to users. Becaus the temperature, even when read sucessfully, was
never dispatched, remove the code entirely. We might want to add this back to
the apple_sensors plugin eventually.
Fixes: #22
swap plugin: Make "cached" optional under Linux.
This is the smallest possible fix for OpenVZ, where cached is not available.
master has a more complete fix which should be used going forward.
Fixes: #733
This is the smallest possible fix for OpenVZ, where cached is not available.
master has a more complete fix which should be used going forward.
Fixes: #733
Fix typo in if caluse
Fixes #729
Signed-off-by: Florian Forster <octo@collectd.org>
Fixes #729
Signed-off-by: Florian Forster <octo@collectd.org>
src/common.c: Fix strstripnewline().
Because the length of the string was decremented too late, the function
would actually overwrite the trailing null byte instead of the newline.
Because the length of the string was decremented too late, the function
would actually overwrite the trailing null byte instead of the newline.
RPM specfile: enable netlink plugin on RHEL > 5
RPM specfile: fix bogus dates
modern rpmbuild versions appear to be more strict on this point.
modern rpmbuild versions appear to be more strict on this point.
RPM specfile: support for RHEL7
RPM specfile: remove duplicate modbus block
network plugin: Improve client connecting behavior.
This moves the socket creation logic so it's called from
networt_send_buffer_plain(). This allows us to recover after network
failures or when collectd was started before the network was available.
Fixes: #627
This moves the socket creation logic so it's called from
networt_send_buffer_plain(). This allows us to recover after network
failures or when collectd was started before the network was available.
Fixes: #627
src/utils_match.[ch]: Implement match_value_reset().
This is called from the curl and memcachec plugins. Previously, gauge
average, minimum and maximum values were calculated since the start of
the daemon, rather than per-interval. This is not the documented
functionality.
Fixes: #663
This is called from the curl and memcachec plugins. Previously, gauge
average, minimum and maximum values were calculated since the start of
the daemon, rather than per-interval. This is not the documented
functionality.
Fixes: #663
curl plugin: Use the utility functions for config handling.
Merge remote-tracking branch 'github/collectd-5.3' into collectd-5.3
src/meta_data.c: If the meta_data_t is empty, avoid calling malloc(0).
src/utils_format_json.c: Handle empty meta_data_t gracefully.
Previously, `meta != NULL` and `keys_num == 0` was possible and would
result in "{}", which is not valid JSON.
Fixes: 716
Previously, `meta != NULL` and `keys_num == 0` was possible and would
result in "{}", which is not valid JSON.
Fixes: 716
python plugin: Don't create empty meta_data_t objects.
Fixes: #716
Fixes: #716
src/utils_rrdcreate.c: Free "args".
Thanks to Yves Mettier for pointing this out!
Fixes: #661
Thanks to Yves Mettier for pointing this out!
Fixes: #661
RPM specfile: update changelog without incrementing release number
GenericJMXConfConnection: Remove unused imports.
java plugin: Make sure cjni_thread_detach() is called on all paths.
Each call to cjni_thread_attach() much be accompanied by
a call to cjni_thread_detach(). Some error handling cases were missing
the call, potentially locking the plugin up.
Each call to cjni_thread_attach() much be accompanied by
a call to cjni_thread_detach(). Some error handling cases were missing
the call, potentially locking the plugin up.
EL <6 provide perl-ExtUtils-Embed with base perl
Conflicts:
contrib/redhat/collectd.spec
Conflicts:
contrib/redhat/collectd.spec
collectd.conf: Fix default packet size of the network plugin.
Fixes: #710
Fixes: #710
Merge branch 'collectd-4.10' into collectd-5.3
curl_xml plugin: Fixed tautological pointer comparison error.
Fixes: http://bugs.debian.org/758481
Signed-off-by: Florian Forster <octo@collectd.org>
Fixes: http://bugs.debian.org/758481
Signed-off-by: Florian Forster <octo@collectd.org>
collectd.conf(5): add detail & example about multi-instance filterchain targets
snmp: free snmp_pdu struct allocated by snmp_pdu_create()
This should fix the leak reported in issue #610.
This should fix the leak reported in issue #610.
Merge pull request #689 from ymettier/ym/cd53_fix_tcpconns_inet_diag
Fix for 'linux/inet_diag.h: No such file or directory'
Fix for 'linux/inet_diag.h: No such file or directory'
RedHat RPM spec: add modbus plugin
... now that EPEL6 provides libmodbus
... now that EPEL6 provides libmodbus
Fix for 'linux/inet_diag.h: No such file or directory'
fix: use DOUBLE_TO_CDTIME_T() to match input type
... as strtod() returns a double not a time_t.
Follow-up to 7d1d59fb to match what ada80db25 does (currently in
master) and avoid a merge conflict.
... as strtod() returns a double not a time_t.
Follow-up to 7d1d59fb to match what ada80db25 does (currently in
master) and avoid a merge conflict.
mistake, SAVE_LIBS="$LIBS" is correct.
patch required to build oracle plugin, collectd-5.4.0 (#653)
Merge pull request #579 from mfournier/libiptc-ldflags
link iptables plugin against flags from pkg-config
link iptables plugin against flags from pkg-config
utils_vl_lookup: Fixed a race when creating user objects.
This could cause multiple aggregation instances to be created in the
aggregation plugin when first writing data to the plugin. This, in turn, led
to "value too old" warnings because subsequently all data was submitted twice.
Thanks to @faxm0dem for reporting this in GH #535.
This could cause multiple aggregation instances to be created in the
aggregation plugin when first writing data to the plugin. This, in turn, led
to "value too old" warnings because subsequently all data was submitted twice.
Thanks to @faxm0dem for reporting this in GH #535.
Plugin exec: change notification time to integer.
Acording to collectd-exec.5 NOTIFICATION DATA FORMAT: time is epoch, i. e. as seconds since 1970-01-01 00:00:00 UTC.
Acording to collectd-exec.5 NOTIFICATION DATA FORMAT: time is epoch, i. e. as seconds since 1970-01-01 00:00:00 UTC.
cmd PUTNOTIF time option: handle double values.
Conflicts:
src/utils_cmd_putnotif.c
Conflicts:
src/utils_cmd_putnotif.c
Plugin java: fix notification time conversion to cdtime_t.
Plugin threshold: time is not set in missing notifications.
manpage: document 2 missing options to amqp plugin section
add missing backticks which broke the build
write_riemann: coding style consistency
Make the style in line with 50d1b34d6 (from master) and avoid later
merge conflict.
Make the style in line with 50d1b34d6 (from master) and avoid later
merge conflict.
don't assume pkg-config is in PATH
Configparser: when we alocate an empty list, we also need to reset the counter; else we will trip over this later.
This fixes https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=750440
This fixes https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=750440
Add DeleteSocket option in synopsis of manpage
Signed-off-by: Florian Forster <octo@collectd.org>
Signed-off-by: Florian Forster <octo@collectd.org>
add brackets to the list of characters graphite chokes on
Graphite deals poorly with metric names containing quotes.
Sanitize graphite metrics with our own escaping function,
better suited for this use-case than the one in `utils_parse_option`
Sanitize graphite metrics with our own escaping function,
better suited for this use-case than the one in `utils_parse_option`
fix for #477: Notification time gone wrong
Sub-second time handling was added in collectd 5.0.0. This adds support
for this to the target_notification plugin, which got missed out at the
time.
Sub-second time handling was added in collectd 5.0.0. This adds support
for this to the target_notification plugin, which got missed out at the
time.
Updated Color to match DataSources and DSName for single-series graphs.
Fix missed change from int to double for interval
indent wh_init() to be consistent with the rest of the file
Call curl_global_init() in _init of plugins using curl
Need to call curl_global_init() or curl_easy_init() during init
for plugins when we're still running single threaded. This
updates the remaining ones
Need to call curl_global_init() or curl_easy_init() during init
for plugins when we're still running single threaded. This
updates the remaining ones
link iptables plugin against flags from pkg-config
This solves issue #326 for ubuntu versions >= 13.10
This solves issue #326 for ubuntu versions >= 13.10
write_riemann plugin: Receive acknowledge message when using TCP.
Not receiving an acknowledge message when communicating with riemann over TCP
will cause the riemann instance to eventually hang for extended periods of time
because of resource exhaustion.
Took the time to reaorganize the riemann_send function to simplify locking.
Not receiving an acknowledge message when communicating with riemann over TCP
will cause the riemann instance to eventually hang for extended periods of time
because of resource exhaustion.
Took the time to reaorganize the riemann_send function to simplify locking.
Please free strings *after* printing them ;-)
Signed-off-by: Florian Forster <octo@collectd.org>
Signed-off-by: Florian Forster <octo@collectd.org>
Merge remote-tracking branch 'origin/collectd-4.10' into collectd-5.3
Merge remote-tracking branch 'origin/pr/490' into collectd-5.3
configure: Fixed linker options when checking for amqp_tcp_socket_new.
This fixes the check when using GCC's --as-needed which fails when options are
not specified in the right order. Libraries (-l options) have to be specified
after any source files. autoconf does the right thing when using $LIBS for
that case rather than $LDFLAGS.
This fixes the check when using GCC's --as-needed which fails when options are
not specified in the right order. Libraries (-l options) have to be specified
after any source files. autoconf does the right thing when using $LIBS for
that case rather than $LDFLAGS.
amqp plugin: Don't use C++ style comments.
Merge pull request #2 from mfournier/amqp-symbol_lookup
amqp: fix symbol lookup error with librabbitmq >= 0.4.0
amqp: fix symbol lookup error with librabbitmq >= 0.4.0
amqp: fix symbol lookup error with librabbitmq >= 0.4.0
amqp_socket_close() which we were using isn't exported anymore.
See https://github.com/alanxz/rabbitmq-c/commit/bdda7ab
amqp_destroy_connection() implicitly closes the socket, so we don't need
to bother about this if using librabbitmq >= 0.4.0
credits to @tokkee for figuring that out !
amqp_socket_close() which we were using isn't exported anymore.
See https://github.com/alanxz/rabbitmq-c/commit/bdda7ab
amqp_destroy_connection() implicitly closes the socket, so we don't need
to bother about this if using librabbitmq >= 0.4.0
credits to @tokkee for figuring that out !
network: comment libgcrypt initalization process
apache plugin: Call curl_global_init() from the init function.
This is a shot in the dark in trying to address #513. By calling this
from an init() callback, I hope to be initializing the curl and gcrypt
libraries before collectd becomes multi-threaded, avoiding the problems
described in the issue.
This is a shot in the dark in trying to address #513. By calling this
from an init() callback, I hope to be initializing the curl and gcrypt
libraries before collectd becomes multi-threaded, avoiding the problems
described in the issue.
10 years ago[network] set_thread_cbs so we initialize the right threading mode in gcry_check_version
[network] set_thread_cbs so we initialize the right threading mode in gcry_check_version
Signed-off-by: Florian Forster <octo@collectd.org>
Signed-off-by: Florian Forster <octo@collectd.org>
amqp plugin: Fixed compilation when using rabbitmq-c < 0.4.
Thanks to Marc Fournier for noticing!
Thanks to Marc Fournier for noticing!
Merge branch 'collectd-4.10' into collectd-5.3
Revert "curl_xml.c: avoid using uninitalized variable in error message"
This reverts commit bbbf37d55a3959951604c4be482e9a705a0f86d9.
A different fix for this problem was commited to the collectd-5.4 branch
(8327ee64) and conflicts with this patch. Also, initializing url the
same way as 8327ee64 does it, to avoid a merge conflict.
This reverts commit bbbf37d55a3959951604c4be482e9a705a0f86d9.
A different fix for this problem was commited to the collectd-5.4 branch
(8327ee64) and conflicts with this patch. Also, initializing url the
same way as 8327ee64 does it, to avoid a merge conflict.
interface.c: FreeBSD-10 support
Quoting @trtrmitya in github issue #506 : "[...] it is broken on
FreeBSD-10, in which getifaddrs() returns not only link level stats for
a particular interface, but also entries for each IP configured on that
interface. As a result if_submit() is called several times for each
interface, which results in incorrect data being logged.
I am attaching a patch which fixes a problem on FreeBSD (9/10), but it
should work for every *BSD because [...] the getifaddrs implementation
first appeared in BSDi BSD/OS."
Many thanks to @trtrmitya for providing the patch !
Quoting @trtrmitya in github issue #506 : "[...] it is broken on
FreeBSD-10, in which getifaddrs() returns not only link level stats for
a particular interface, but also entries for each IP configured on that
interface. As a result if_submit() is called several times for each
interface, which results in incorrect data being logged.
I am attaching a patch which fixes a problem on FreeBSD (9/10), but it
should work for every *BSD because [...] the getifaddrs implementation
first appeared in BSDi BSD/OS."
Many thanks to @trtrmitya for providing the patch !
curl_xml.c: avoid using uninitalized variable in error message
Thanks to @trtrmitya for reporting this. Fixes GH#507
Thanks to @trtrmitya for reporting this. Fixes GH#507
curl plugin: Fixed a segfault when using <Match> without an Instance.
Thanks to Alexander Golovko for reporting this in
http://bugs.debian.org/732701
Thanks to Alexander Golovko for reporting this in
http://bugs.debian.org/732701
amqp plugin: Added support for rabbitmq-c 0.4.x.
Upstream introduced a new socket interface and deprecated the old one. This
leads to compiler errors when using GCC and -Werror.
Upstream introduced a new socket interface and deprecated the old one. This
leads to compiler errors when using GCC and -Werror.
collection3: Fix data source names
Data sources were renamed in 6c1415d, but the data source names for some
of these entries still referenced the old data sources.
Data sources were renamed in 6c1415d, but the data source names for some
of these entries still referenced the old data sources.
Link to IOKit using -framework
The libIOKit.dylib symlink no longer exists in OS X 10.9 Mavericks, we
now have to link using -framework. This should also work in all previous
versions of OS X.
Signed-off-by: Florian Forster <octo@collectd.org>
The libIOKit.dylib symlink no longer exists in OS X 10.9 Mavericks, we
now have to link using -framework. This should also work in all previous
versions of OS X.
Signed-off-by: Florian Forster <octo@collectd.org>
src/types.db: Remove maximum value on "cache_size".
Fixes #466. Thanks to @dlacko for pointing this out!
Fixes #466. Thanks to @dlacko for pointing this out!
Merge pull request #393 from mfournier/prevent-building-with-old-libpcap
Prevent building with old libpcap
Prevent building with old libpcap
fix error message in target_{replace,set}
Remove erroneous hint that "Type" can be altered. Also correct a small
typo. Thanks to @mjulian for pointing that out !
Fixes GH#448
Remove erroneous hint that "Type" can be altered. Also correct a small
typo. Thanks to @mjulian for pointing that out !
Fixes GH#448
Update collectd.conf.pod
spotted by lukas227 in IRC:
23:43 < lukas227> Hi, I think I found a mistake in the threshold.conf(5) man page: the example
THRESHOLD CONFIGURATION is within <Threshold></Threshold> tags, but should
probably be within <Plugin "threshold"></Plugin> tags (doesn work with
<Threshold> for me)
Day changed to 27 Sep 2013
Signed-off-by: Florian Forster <octo@collectd.org>
spotted by lukas227 in IRC:
23:43 < lukas227> Hi, I think I found a mistake in the threshold.conf(5) man page: the example
THRESHOLD CONFIGURATION is within <Threshold></Threshold> tags, but should
probably be within <Plugin "threshold"></Plugin> tags (doesn work with
<Threshold> for me)
Day changed to 27 Sep 2013
Signed-off-by: Florian Forster <octo@collectd.org>
Avoid using first person in the error message
Signed-off-by: Florian Forster <octo@collectd.org>
Signed-off-by: Florian Forster <octo@collectd.org>
Replace you with your in error message
Signed-off-by: Florian Forster <octo@collectd.org>
Signed-off-by: Florian Forster <octo@collectd.org>
zfs_arc plugin: Collect "allocated" and "stolen" on FreeBSD only.
The appropriate log messages have been demoted to WARNING.
Github: #305
The appropriate log messages have been demoted to WARNING.
Github: #305
curl_json plugin: avoid accessing off the end of the avl_tree_s
It's not written this way, but really we have a union { *key; *tree; }
which is differentiated by checking for the presence a magic field
which only exists in key. This leads to accesses off the end of the
tree. Putting the magic at start of the key avoids this.
Signed-off-by: Florian Forster <octo@collectd.org>
It's not written this way, but really we have a union { *key; *tree; }
which is differentiated by checking for the presence a magic field
which only exists in key. This leads to accesses off the end of the
tree. Putting the magic at start of the key avoids this.
Signed-off-by: Florian Forster <octo@collectd.org>