Merge remote-tracking branch 'origin/collectd-4.10' into collectd-5.1
Conflicts:
ChangeLog
version-gen.sh
Conflicts:
ChangeLog
version-gen.sh
Bump version to 4.10.9; Update ChangeLog.
Merge branch 'jk/snmp' into collectd-5.1
Merge remote-tracking branch 'github-octo/ff/netapp' into collectd-5.1
Merge branch 'collectd-4.10' into collectd-5.1
Conflicts:
configure.in
src/mysql.c
src/network.c
src/thermal.c
Conflicts:
configure.in
src/mysql.c
src/network.c
src/thermal.c
network plugin: Make sure gcrypt is initialized before using any of its functions.
@marekbecka found that sockent_open() is called during the configuration
phase, but gcrypt is initialized later, during the initialization phase.
This patch will initialize gcrypt in sockent_open() if any sockets with
security are configured.
Fixes Github issue #273.
@marekbecka found that sockent_open() is called during the configuration
phase, but gcrypt is initialized later, during the initialization phase.
This patch will initialize gcrypt in sockent_open() if any sockets with
security are configured.
Fixes Github issue #273.
Don't clobber TMPDIR during Java detection
- Java detection used TMPDIR as var to parse command output
- TMPDIR is used in libltdl later on in ./configure
- alternative fix is local var or subshell
- fixes issue introduced via #33163ee
Conflicts:
configure.in
Signed-off-by: Florian Forster <octo@collectd.org>
- Java detection used TMPDIR as var to parse command output
- TMPDIR is used in libltdl later on in ./configure
- alternative fix is local var or subshell
- fixes issue introduced via #33163ee
Conflicts:
configure.in
Signed-off-by: Florian Forster <octo@collectd.org>
notify_email: Add charset in Content-Type header (seems required by some picky spam filters)
Signed-off-by: Florian Forster <octo@collectd.org>
Signed-off-by: Florian Forster <octo@collectd.org>
netapp plugin: Fix intervals used when dispatching values.
It used to use the interval of the <Host /> block when in fact it should
have used the interval of the data blocks.
Fixes Github issue #288.
It used to use the interval of the <Host /> block when in fact it should
have used the interval of the data blocks.
Fixes Github issue #288.
snmp plugin: Fix compilation issue.
Thanks to Magnus for pointing this out.
Thanks to Magnus for pointing this out.
nfs plugin: Copy the name before calling the non-const lookup function.
Fixes Github issue #70. Thanks to Jeff for reporting this issue.
Fixes Github issue #70. Thanks to Jeff for reporting this issue.
rrdcached plugin: Connect to the daemon in the read() callback.
Fixes Github issue #275. Thanks to Yves Mettier for reporting this bug!
Fixes Github issue #275. Thanks to Yves Mettier for reporting this bug!
snmp plugin: Allocate "oid_list" on the stack.
snmp plugin: Some coding style fixes.
* Rename "oid_todo_list" to "oid_list_todo".
* Rename "j" to "oid_list_todo_num".
* Fix indentation.
* Declare variables at beginning of block.
* Rename "oid_todo_list" to "oid_list_todo".
* Rename "j" to "oid_list_todo_num".
* Fix indentation.
* Declare variables at beginning of block.
csnmp_read_table: Change GETNEXT request behaviour (+ bugfix 235)
This patch changes the snmp GETNEXT request behaviour implemented in snmp.c.
The old implementation requested all OIDs using GETNEXT requests until all OIDs
left their own subtree. In cases were trees in a Data template are much longer
than other trees the shorter subtrees were re-requested over and over again.
The new implementation will only request OIDs that did not already leave their
subtrees (see the oid_todo_list implementation for details). This renders the
function csnmp_check_res_left_subtree useless as the oid_todo_list keeps track
if all OIDs have finished.
During tests against Cat6500 (CatOS/IOS) as well as Nexus5k (NX-OS) it looks as
though GETNEXT requests (when requesting multiple OIDs like all 14 dot3Stats
errors from Etherlike-MIB) can take about 5-10ms (CatOS 30ms) longer if they wrap
to the next OID.
This does not sound much but when collecting data for the Etherlike-MIB (that only
has entries for physical interfaces) with a collectd "Instance" variable in IF-MIB
(that has entries for all physical as well as pseudo [SVIs, VLANs, ...] interfaces)
this can make a notable difference (e.g. for core routers that have all SVIs and
VLANs but only some switches attached):
IOS-Core-Router ifName 550 entries
dot3StatsFCSErrors 70 entries
------------
480 entries * 10ms = 4.8s overhead
CatOS-Access-Sw. ifName 840 entries
dot3StatsFCSErrors 490 entries
------------
350 entries * 30ms = 10.5s overhead
After refactoring csnmp_read_table "Instance" and "Value" OIDs are now handled
consistently (so no pointer-forward foo needed). It doesn't change any logic
and data structures, though - so there should not be any impact to other
functions.
The refactored code also fixes GitHub bugs #235 and #258. This bug is due to
reusing the status variable in following code section which might lead to errors
if the subtrees are of different length:
1436 /* Calculate the current suffix. This is later used to check that the
1437 * suffix is increasing. This also checks if we left the subtree */
1438 status = csnmp_oid_suffix (&suffix, &vb_name, data->values + i);
Signed-off-by: Florian Forster <octo@collectd.org>
This patch changes the snmp GETNEXT request behaviour implemented in snmp.c.
The old implementation requested all OIDs using GETNEXT requests until all OIDs
left their own subtree. In cases were trees in a Data template are much longer
than other trees the shorter subtrees were re-requested over and over again.
The new implementation will only request OIDs that did not already leave their
subtrees (see the oid_todo_list implementation for details). This renders the
function csnmp_check_res_left_subtree useless as the oid_todo_list keeps track
if all OIDs have finished.
During tests against Cat6500 (CatOS/IOS) as well as Nexus5k (NX-OS) it looks as
though GETNEXT requests (when requesting multiple OIDs like all 14 dot3Stats
errors from Etherlike-MIB) can take about 5-10ms (CatOS 30ms) longer if they wrap
to the next OID.
This does not sound much but when collecting data for the Etherlike-MIB (that only
has entries for physical interfaces) with a collectd "Instance" variable in IF-MIB
(that has entries for all physical as well as pseudo [SVIs, VLANs, ...] interfaces)
this can make a notable difference (e.g. for core routers that have all SVIs and
VLANs but only some switches attached):
IOS-Core-Router ifName 550 entries
dot3StatsFCSErrors 70 entries
------------
480 entries * 10ms = 4.8s overhead
CatOS-Access-Sw. ifName 840 entries
dot3StatsFCSErrors 490 entries
------------
350 entries * 30ms = 10.5s overhead
After refactoring csnmp_read_table "Instance" and "Value" OIDs are now handled
consistently (so no pointer-forward foo needed). It doesn't change any logic
and data structures, though - so there should not be any impact to other
functions.
The refactored code also fixes GitHub bugs #235 and #258. This bug is due to
reusing the status variable in following code section which might lead to errors
if the subtrees are of different length:
1436 /* Calculate the current suffix. This is later used to check that the
1437 * suffix is increasing. This also checks if we left the subtree */
1438 status = csnmp_oid_suffix (&suffix, &vb_name, data->values + i);
Signed-off-by: Florian Forster <octo@collectd.org>
configure.in: Yet another attempt at fixing the mess that is AC_LANG_PROGRAM().
thermal plugin: set the hostname
Signed-off-by: Markus Knetschke <markus.knetschke@gmail.com>
Signed-off-by: Florian Forster <octo@collectd.org>
Signed-off-by: Markus Knetschke <markus.knetschke@gmail.com>
Signed-off-by: Florian Forster <octo@collectd.org>
thermal plugin: fixed value submitting
Signed-off-by: Markus Knetschke <markus.knetschke@gmail.com>
Signed-off-by: Florian Forster <octo@collectd.org>
Signed-off-by: Markus Knetschke <markus.knetschke@gmail.com>
Signed-off-by: Florian Forster <octo@collectd.org>
Allow parsing plugin_instance in parse_option().
isalnum() is not enough to catch the underscore.
Signed-off-by: Florian Forster <octo@collectd.org>
isalnum() is not enough to catch the underscore.
Signed-off-by: Florian Forster <octo@collectd.org>
mysql plugin: Call mysql_init() only once.
Apparently, if you call it with a structure allocated by mysql_init()
itself, it leaks memory. Thanks to Yves Mettier for pointing this out!
Fixes Github issue #274.
Apparently, if you call it with a structure allocated by mysql_init()
itself, it leaks memory. Thanks to Yves Mettier for pointing this out!
Fixes Github issue #274.
configure.in: Fix quoting of AC_LANG_PROGRAM().
Autoconf 2.68 complains about that and aborts building the configure
script. *sigh*
Autoconf 2.68 complains about that and aborts building the configure
script. *sigh*
configure.in: Quote AC_LANG_PROGRAM and remove AC_INCLUDES_DEFAULT.
The latter isn't expanded anymore when quoted. There's no easy way
around this :\
The latter isn't expanded anymore when quoted. There's no easy way
around this :\
src/filter_chain.c: Fixed typos in error messages
Signed-off-by: Florian Forster <octo@collectd.org>
Signed-off-by: Florian Forster <octo@collectd.org>
Merge branch 'collectd-4.10' into collectd-5.1
Conflicts:
src/curl_json.c
Conflicts:
src/curl_json.c
curl_xml plugin: Check for a curl_easy_perform() error first
The value of CURLINFO_RESPONSE_CODE isn't valid otherwise.
Also, use the symbolic name CURLE_OK in all plugins where
appropriate.
Change-Id: I17ae9c7eea393ee4641296b5484c93809a662dd9
Signed-off-by: Florian Forster <octo@collectd.org>
The value of CURLINFO_RESPONSE_CODE isn't valid otherwise.
Also, use the symbolic name CURLE_OK in all plugins where
appropriate.
Change-Id: I17ae9c7eea393ee4641296b5484c93809a662dd9
Signed-off-by: Florian Forster <octo@collectd.org>
Fix memory leaks when plugin gets no results
Signed-off-by: Florian Forster <octo@collectd.org>
Signed-off-by: Florian Forster <octo@collectd.org>
exec plugin: Fix a copy'n'paste mistake in a comment.
Thanks to Robert Riches Jr for the hint.
Thanks to Robert Riches Jr for the hint.
Add upstart configuration file for Ubuntu, Debian and RedHat distros
Signed-off-by: Florian Forster <octo@collectd.org>
Signed-off-by: Florian Forster <octo@collectd.org>
curl_json plugin: Call yajl_complete_parse() / yajl_parse_complete() only once.
The cURL callback may be called several times, so we need to call the
complete() function after perform() returns.
The cURL callback may be called several times, so we need to call the
complete() function after perform() returns.
Add protection from infinite redirect loops to curl-using plugins
Signed-off-by: Florian Forster <octo@collectd.org>
Signed-off-by: Florian Forster <octo@collectd.org>
curl_xml plugin: Fix potential dereference of NULL pointer.
I managed to get collectd to segfault in a couple of places while
playing with it a bit. The first is in the curl_xml module when the
XPATH expression doesn't quite match the input. The crash occurs on line
407 when instance_node->nodeTab[0] is dereferenced. At this point, all
members of instance_node are 0, so dereferencing the array isn't a good
idea. This patch fixes the problem, although I'm not sure if this
particular case actually deserves its own error message.
Signed-off-by: Florian Forster <octo@collectd.org>
I managed to get collectd to segfault in a couple of places while
playing with it a bit. The first is in the curl_xml module when the
XPATH expression doesn't quite match the input. The crash occurs on line
407 when instance_node->nodeTab[0] is dereferenced. At this point, all
members of instance_node are 0, so dereferencing the array isn't a good
idea. This patch fixes the problem, although I'm not sure if this
particular case actually deserves its own error message.
Signed-off-by: Florian Forster <octo@collectd.org>
src/plugin.c: Initialize "next_read" field of read callbacks.
Fixes Github issue #230.
Fixes Github issue #230.
Merge branch 'collectd-4.10' into collectd-5.1
Conflicts:
src/curl_json.c
Conflicts:
src/curl_json.c
curl's numeric options are always at minimum long, never int
This can affect portability to some architectures.
Signed-off-by: Florian Forster <octo@collectd.org>
This can affect portability to some architectures.
Signed-off-by: Florian Forster <octo@collectd.org>
cpu plugin: Remove broken debug message.
The message was uninformative and did cast a pointer to an int,
resulting in a compile error.
The message was uninformative and did cast a pointer to an int,
resulting in a compile error.
Bumped version to 5.1.2; Updated ChangeLog.
Added "tar-pax" (bugfix for long filenames with make distcheck)
Signed-off-by: Florian Forster <octo@collectd.org>
Signed-off-by: Florian Forster <octo@collectd.org>
src/Makefile.am: Fix "make distcheck".
protoc-c has a weird handling of files not in the CWD: They have to be
specified with the "-I" option _and_ you need to specify the full path
to the file.
protoc-c has a weird handling of files not in the CWD: They have to be
specified with the "-I" option _and_ you need to specify the full path
to the file.
make distcheck : perllocal.pod was missing. Fixed
Signed-off-by: Florian Forster <octo@collectd.org>
Signed-off-by: Florian Forster <octo@collectd.org>
Fix make distcheck (against release 5.1.1)
Signed-off-by: Florian Forster <octo@collectd.org>
Signed-off-by: Florian Forster <octo@collectd.org>
logfile plugin: Make "do_close" a boolean.
If the file isn't closed such as when logging to stdout or stderr the file must be flushed for it to get out of the IO buffers right away.
Signed-off-by: Florian Forster <octo@collectd.org>
Signed-off-by: Florian Forster <octo@collectd.org>
src/utils_dns.c: Improve ordering of includes.
sys, followed by net, followed by netinet, followed by arpa
that should be the most logical order
Signed-off-by: Florian Forster <octo@collectd.org>
sys, followed by net, followed by netinet, followed by arpa
that should be the most logical order
Signed-off-by: Florian Forster <octo@collectd.org>
write_graphite plugin: Remove two more redundant error messages.
The failing functions already print an error message; don't spam the logs
by duplicating this.
Further fixes Github issue #236.
The failing functions already print an error message; don't spam the logs
by duplicating this.
Further fixes Github issue #236.
src/utils_complain.[ch]: Fix the complaint mechanism after the sub-second change.
write_graphite: Use the complain mechanism to report connection errors.
Fixes Github issue #236. Thanks to @pyr for reporting it!
Fixes Github issue #236. Thanks to @pyr for reporting it!
Merge branch 'collectd-4.10' into collectd-5.1
dbi plugin: Replace cdbi_config_set_string() with cf_util_get_string().
Fixed a small typo in the ethstat plugin
Signed-off-by: Florian Forster <octo@collectd.org>
Signed-off-by: Florian Forster <octo@collectd.org>
ethstat plugin: Fix the map lookup.
Previously, a pointer into the configuration structure was used to look
up the mappings. Because the configuration structure is freed or
otherwise modified, this does not work as intended (and may actually
lead to a segmentation fault when unlucky).
For completeness sake, a shutdown callback was added to free the used
memory on exit.
Fixes Github issue 224.
Previously, a pointer into the configuration structure was used to look
up the mappings. Because the configuration structure is freed or
otherwise modified, this does not work as intended (and may actually
lead to a segmentation fault when unlucky).
For completeness sake, a shutdown callback was added to free the used
memory on exit.
Fixes Github issue 224.
src/types.db: Remove the maximum value from "timeleft".
zfs_arc plugin: Fix the type used for mutex misses.
Thanks to Yves Mettier for pointing this out!
Thanks to Yves Mettier for pointing this out!
11 years agoUpdating data source for collectd v5, see https://collectd.org/wiki/index.php/V4_to_v...
Updating data source for collectd v5, see https://collectd.org/wiki/index.php/V4_to_v5_migration_guide
Signed-off-by: Florian Forster <octo@collectd.org>
Signed-off-by: Florian Forster <octo@collectd.org>
varnish plugin: Make sure the argument passed to VSM_n_Arg() is not NULL.
Fixes Github issue 202.
Fixes Github issue 202.
Merge branch 'collectd-5.0' into collectd-5.1
Merge branch 'collectd-4.10' into collectd-5.0
src/network.c: Fix the build on FreeBSD.
<gcrypt.h> accepts a definition called GCRYPT_NO_DEPRECATED to disable
deprecated functionality. Unfortunately, this definition is not
sufficient to suppress all warnings. However, FreeBSD's version of
libgcrypt has been fixed to properly remove all deprecated features.
Signed-off-by: Florian Forster <octo@collectd.org>
<gcrypt.h> accepts a definition called GCRYPT_NO_DEPRECATED to disable
deprecated functionality. Unfortunately, this definition is not
sufficient to suppress all warnings. However, FreeBSD's version of
libgcrypt has been fixed to properly remove all deprecated features.
Signed-off-by: Florian Forster <octo@collectd.org>
Bump version to 5.1.1; Update ChangeLog.
Merge branch 'collectd-5.0' into collectd-5.1
Conflicts:
ChangeLog
version-gen.sh
Conflicts:
ChangeLog
version-gen.sh
Bump version to 5.0.5; Update ChangeLog.
Merge branch 'collectd-4.10' into collectd-5.0
Conflicts:
ChangeLog
src/pyvalues.c
version-gen.sh
Conflicts:
ChangeLog
src/pyvalues.c
version-gen.sh
Update version-gen.sh.
Bump version to 4.10.8; Update ChangeLog.
ping plugin: Don't abort the "ping_thread" when ping_send() fails.
This may happen when the network is down. If the thread fails, the read
callback will indicate an error and the exponential back-off will start.
This is not optimal for this scenario, since you usually want to have
ping stats from right when the network is back up.
Fixes Github issue #171.
This may happen when the network is down. If the thread fails, the read
callback will indicate an error and the exponential back-off will start.
This is not optimal for this scenario, since you usually want to have
ping stats from right when the network is back up.
Fixes Github issue #171.
ping plugin: Refactor "ping_thread": Move iteration over hosts into a function.
12 years ago1) Cleans up one configure.ac error AC_LINK_IFELSE requires AC_LANG_PROGRAM (or somet...
1) Cleans up one configure.ac error AC_LINK_IFELSE requires AC_LANG_PROGRAM (or something similar) to get the setup right.
2) Fix for maintaier-clean so that you can run the autoreconf build script multiple times.
3) Clean up the generated man pages when running cleanup.
Signed-off-by: Florian Forster <octo@collectd.org>
2) Fix for maintaier-clean so that you can run the autoreconf build script multiple times.
3) Clean up the generated man pages when running cleanup.
Signed-off-by: Florian Forster <octo@collectd.org>
collectd-python.conf(5): fix register_* argument description
Signed-off-by: Florian Forster <octo@collectd.org>
Signed-off-by: Florian Forster <octo@collectd.org>
collectd-python.conf(5): change phrasing of function descriptions
Signed-off-by: Florian Forster <octo@collectd.org>
Signed-off-by: Florian Forster <octo@collectd.org>
collectd-python.conf(5): change phrasing of minimum required version
Signed-off-by: Florian Forster <octo@collectd.org>
Signed-off-by: Florian Forster <octo@collectd.org>
collectd-python.conf(5): fix trivial spelling mistakes
Signed-off-by: Florian Forster <octo@collectd.org>
Signed-off-by: Florian Forster <octo@collectd.org>
collectd-python.conf(5): capitalize Python
Signed-off-by: Florian Forster <octo@collectd.org>
Signed-off-by: Florian Forster <octo@collectd.org>
collection3: Remove duplicate definition of contains_invalid_chars().
Thanks to Jonathan Amiez for pointing this out!
Fixes Github issue #160.
Thanks to Jonathan Amiez for pointing this out!
Fixes Github issue #160.
network.c: call gcry_check_version() as required by library.
Signed-off-by: Florian Forster <octo@collectd.org>
Signed-off-by: Florian Forster <octo@collectd.org>
Merge remote-tracking branch 'trenkel/collectd-4.10' into collectd-4.10
Change the libnetlink function used to query link statistics to match iproute2's behavior and thus not trip on the kernel's new parsing of optional attributes for RTM_GETLINK.
Signed-off-by: Florian Forster <octo@collectd.org>
Signed-off-by: Florian Forster <octo@collectd.org>
Merge branch 'collectd-5.0' into collectd-5.1
Merge branch 'collectd-4.10' into collectd-5.0
Conflicts:
src/utils_db_query.c
src/utils_db_query.h
Conflicts:
src/utils_db_query.c
src/utils_db_query.h
disk plugin: Multiply the average read/write latency with the interval.
The counter/derive will later be divided by the interval, resulting in too
small rates (for interval > 1.0).
Should fix issue #150. Thanks to Manuel Sanmartin for identifying this problem!
The counter/derive will later be divided by the interval, resulting in too
small rates (for interval > 1.0).
Should fix issue #150. Thanks to Manuel Sanmartin for identifying this problem!
python: Fix memory leaks.
network.c: workaround for broken OSX compilers issuing false warnings
Signed-off-by: Florian Forster <octo@collectd.org>
Signed-off-by: Florian Forster <octo@collectd.org>
Merge remote-tracking branch 'origin/collectd-5.1' into collectd-5.1
src/utils_db_query.[ch]: Remove duplicate "const" modifier.
Merge branch 'collectd-5.0' into collectd-5.1
Conflicts:
src/snmp.c
Conflicts:
src/snmp.c
Merge branch 'collectd-4.10' into collectd-5.0
Conflicts:
src/snmp.c
Conflicts:
src/snmp.c
Merge branch 'ff/snmp' into collectd-4.10
src/utils_avltree.c: Fix an off-by-one error in c_avl_insert().
When inserting the first node in the tree, the size is not incremented.
This causes c_avl_size() to return one element too little.
Thanks to Yves Mettier for debugging this!
When inserting the first node in the tree, the size is not incremented.
This causes c_avl_size() to return one element too little.
Thanks to Yves Mettier for debugging this!
snmp plugin: Fix incorrect comparison in csnmp_oid_compare().
snmp plugin: Check the return value of csnmp_oid_suffix().
Also fix an issue where the complete OID is compared with only the suffix.
Thanks to Mark Juric to test the changes and point out these problems.
Issue: #131
Also fix an issue where the complete OID is compared with only the suffix.
Thanks to Mark Juric to test the changes and point out these problems.
Issue: #131
The commit 3bda88e8b425f43644e303e6957e38ae59c1bc83 change the shell from sh to bash.
To fix the configure script generation error: remove the echo whith \c used in sh.
Note: bash is not installed in AIX by default.
Signed-off-by: Florian Forster <octo@collectd.org>
To fix the configure script generation error: remove the echo whith \c used in sh.
Note: bash is not installed in AIX by default.
Signed-off-by: Florian Forster <octo@collectd.org>
snmp plugin: Fix iterating over tables without an instance configuration.
Also should fix incorrect handling of instance values; the first one would
be skipped.
Also should fix incorrect handling of instance values; the first one would
be skipped.
configure: Only set the Perl interpreter if the argument is a file.
This fixes Github issue #137.
This fixes Github issue #137.
Fixed bugs that prevented to "make distcheck"
Fixes Github issue #132.
Signed-off-by: Florian Forster <octo@collectd.org>
Fixes Github issue #132.
Signed-off-by: Florian Forster <octo@collectd.org>
Merge branch 'collectd-5.0' into collectd-5.1
Merge branch 'collectd-4.10' into collectd-5.0
Conflicts:
src/utils_db_query.c
src/zfs_arc.c
Conflicts:
src/utils_db_query.c
src/zfs_arc.c
Fix for Solaris when setting ip-opt multicast-loop (must be a char, not int).
General logging additions for tracking down the problem.
Signed-off-by: Florian Forster <octo@collectd.org>
General logging additions for tracking down the problem.
Signed-off-by: Florian Forster <octo@collectd.org>
Multithreading fix: localize unneeded global variable
ethstat plugin: Initialize realloc'ated memory.
The last element in "interfaces" is not guaranteed to be zeroed, resulting in a
segfault when cf_util_get_string() tries to free the "pointer".
Thanks to Mark T. Voelker for reporting and analyzing this bug!
This should fix Github issue #133.
The last element in "interfaces" is not guaranteed to be zeroed, resulting in a
segfault when cf_util_get_string() tries to free the "pointer".
Thanks to Mark T. Voelker for reporting and analyzing this bug!
This should fix Github issue #133.
ethstat plugin: Fix off-by-one error.
This hopefully fixes Github issue #135.
This hopefully fixes Github issue #135.
snmp plugin: Improve subtree matching.
Some MIBs use subtrees with an unusual OID naming schema. For example,
some network hardware encodes the MAC address in the last six parts of
the OID. Previously, the code only checked the last part of the OID
("sub-id") and assumed this was increasing. This assumption is not true
in such naming schemas and is not required by SNMP. This patch fixes
this behavior by comparing the entire "OID suffix".
This hopefully fixes Github issue #131.
Some MIBs use subtrees with an unusual OID naming schema. For example,
some network hardware encodes the MAC address in the last six parts of
the OID. Previously, the code only checked the last part of the OID
("sub-id") and assumed this was increasing. This assumption is not true
in such naming schemas and is not required by SNMP. This patch fixes
this behavior by comparing the entire "OID suffix".
This hopefully fixes Github issue #131.
snmp plugin: Expand tabs.