mirror of
https://github.com/Icinga/icinga2.git
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Documentation: Move Debug from Troubleshooting into a separate section
This commit is contained in:
Michael Friedrich
parent
2ae06b7a52
commit
06e6da081a
@ -16,7 +16,7 @@ re-implementation of the Livestatus protocol which is compatible with MK
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Livestatus.
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Livestatus.
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Details on the available tables and attributes with Icinga 2 can be found
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Details on the available tables and attributes with Icinga 2 can be found
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in the [Livestatus Schema](18-appendix.md#schema-livestatus) section.
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in the [Livestatus Schema](19-apendix.md#schema-livestatus) section.
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You can enable Livestatus using icinga2 feature enable:
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You can enable Livestatus using icinga2 feature enable:
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@ -92,7 +92,7 @@ Example using the tcp socket listening on port `6558`:
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### <a id="livestatus-command-queries"></a> Livestatus COMMAND Queries
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### <a id="livestatus-command-queries"></a> Livestatus COMMAND Queries
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A list of available external commands and their parameters can be found [here](18-appendix.md#external-commands-list-detail)
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A list of available external commands and their parameters can be found [here](19-apendix.md#external-commands-list-detail)
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$ echo -e 'COMMAND <externalcommandstring>' | netcat 127.0.0.1 6558
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$ echo -e 'COMMAND <externalcommandstring>' | netcat 127.0.0.1 6558
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@ -190,5 +190,5 @@ Default separators.
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The `commands` table is populated with `CheckCommand`, `EventCommand` and `NotificationCommand` objects.
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The `commands` table is populated with `CheckCommand`, `EventCommand` and `NotificationCommand` objects.
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A detailed list on the available table attributes can be found in the [Livestatus Schema documentation](18-appendix.md#schema-livestatus).
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A detailed list on the available table attributes can be found in the [Livestatus Schema documentation](19-apendix.md#schema-livestatus).
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@ -8,7 +8,7 @@
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* Provide complete configuration snippets explaining your problem in detail
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* Provide complete configuration snippets explaining your problem in detail
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* Provide complete logs targetting your problem
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* Provide complete logs targetting your problem
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* If the check command failed - what's the output of your manual plugin tests?
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* If the check command failed - what's the output of your manual plugin tests?
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* In case of [debugging](13-troubleshooting.md#debug) Icinga 2, the full back traces and outputs
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* In case of [debugging](18-debug.md#debug) Icinga 2, the full back traces and outputs
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## <a id="troubleshooting-enable-debug-output"></a> Enable Debug Output
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## <a id="troubleshooting-enable-debug-output"></a> Enable Debug Output
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@ -219,214 +219,3 @@ If the cluster zones do not sync their configuration, make sure to check the fol
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** The master syncs the configuration to `/var/lib/icinga2/api/zones/` during startup and only syncs valid configuration to the other nodes
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** The master syncs the configuration to `/var/lib/icinga2/api/zones/` during startup and only syncs valid configuration to the other nodes
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** The other nodes receive the configuration into `/var/lib/icinga2/api/zones/`
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** The other nodes receive the configuration into `/var/lib/icinga2/api/zones/`
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* The `icinga2.log` log file will indicate whether this ApiListener [accepts config](9-monitoring-remote-systems.md#zone-config-sync-permissions), or not
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* The `icinga2.log` log file will indicate whether this ApiListener [accepts config](9-monitoring-remote-systems.md#zone-config-sync-permissions), or not
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## <a id="debug"></a> Debug Icinga 2
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> **Note**
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>
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> If you are planning to build your own development environment,
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> please consult the `INSTALL.md` file from the source tree.
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### <a id="debug-requirements"></a> Debug Requirements
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Make sure that the debug symbols are available for Icinga 2.
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The Icinga 2 packages provide a debug package which must be
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installed separately for all involved binaries, like `icinga2-bin`
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or `icinga2-ido-mysql`.
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Debian/Ubuntu:
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# apt-get install icinga2-dbg
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RHEL/CentOS:
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# yum install icinga2-debuginfo
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SLES/openSUSE:
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# zypper install icinga2-bin-debuginfo icinga2-ido-mysql-debuginfo
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Furthermore, you may also have to install debug symbols for Boost and your C library.
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If you're building your own binaries you should use the `-DCMAKE_BUILD_TYPE=Debug` cmake
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build flag for debug builds.
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### <a id="development-debug-gdb"></a> GDB
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Install gdb:
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Debian/Ubuntu:
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# apt-get install gdb
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RHEL/CentOS/Fedora:
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# yum install gdb
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SLES/openSUSE:
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# zypper install gdb
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Install the `boost`, `python` and `icinga2` pretty printers. Absolute paths are required,
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so please make sure to update the installation paths accordingly (`pwd`).
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Boost Pretty Printers:
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$ mkdir -p ~/.gdb_printers && cd ~/.gdb_printers
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$ git clone https://github.com/ruediger/Boost-Pretty-Printer.git && cd Boost-Pretty-Printer
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$ pwd
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/home/michi/.gdb_printers/Boost-Pretty-Printer
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Python Pretty Printers:
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$ cd ~/.gdb_printers
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$ svn co svn://gcc.gnu.org/svn/gcc/trunk/libstdc++-v3/python
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Icinga 2 Pretty Printers:
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$ mkdir -p ~/.gdb_printers/icinga2 && cd ~/.gdb_printers/icinga2
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$ wget https://raw.githubusercontent.com/Icinga/icinga2/master/tools/debug/gdb/icingadbg.py
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Now you'll need to modify/setup your `~/.gdbinit` configuration file.
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You can download the one from Icinga 2 and modify all paths.
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Example on Fedora:
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$ wget https://raw.githubusercontent.com/Icinga/icinga2/master/tools/debug/gdb/gdbinit -O ~/.gdbinit
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$ vim ~/.gdbinit
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set print pretty on
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python
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import sys
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sys.path.insert(0, '/home/michi/.gdb_printers/icinga2')
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from icingadbg import register_icinga_printers
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register_icinga_printers()
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end
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python
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import sys
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sys.path.insert(0, '/home/michi/.gdb_printers/python')
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from libstdcxx.v6.printers import register_libstdcxx_printers
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register_libstdcxx_printers(None)
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end
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python
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import sys
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sys.path.insert(0, '/home/michi/.gdb_printers/Boost-Pretty-Printer')
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from boost.printers import register_printer_gen
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register_printer_gen(None)
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end
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If you are getting the following error when running gdb, the `libstdcxx`
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printers are already preloaded in your environment and you can remove
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the duplicate import in your `~/.gdbinit` file.
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RuntimeError: pretty-printer already registered: libstdc++-v6
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### <a id="development-debug-gdb-run"></a> GDB Run
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Call GDB with the binary and all arguments and run it in foreground.
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# gdb --args /usr/sbin/icinga2 daemon -x debug
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> **Note**
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>
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> If gdb tells you it's missing debug symbols, quit gdb and install
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> them: `Missing separate debuginfos, use: debuginfo-install ...`
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Run the application.
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(gdb) r
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Kill the running application.
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(gdb) k
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Continue after breakpoint.
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(gdb) c
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### <a id="development-debug-gdb-backtrace"></a> GDB Backtrace
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If Icinga 2 aborted its operation abnormally, generate a backtrace.
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(gdb) bt
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(gdb) bt full
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>**Tip**
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>
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> If you're opening an issue at [https://dev.icinga.org] make sure
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> to attach as much detail as possible.
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### <a id="development-debug-gdb-backtrace-stepping"></a> GDB Backtrace Stepping
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Identifying the problem may require stepping into the backtrace, analysing
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the current scope, attributes, and possible unmet requirements. `p` prints
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the value of the selected variable or function call result.
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(gdb) up
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(gdb) down
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(gdb) p checkable
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(gdb) p checkable.px->m_Name
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### <a id="development-debug-gdb-breakpoint"></a> GDB Breakpoints
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To set a breakpoint to a specific function call, or file specific line.
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(gdb) b checkable.cpp:125
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(gdb) b icinga::Checkable::SetEnablePerfdata
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GDB will ask about loading the required symbols later, select `yes` instead
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of `no`.
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Then run Icinga 2 until it reaches the first breakpoint. Continue with `c`
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afterwards.
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(gdb) run
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(gdb) c
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If you want to delete all breakpoints, use `d` and select `yes`.
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(gdb) d
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> **Tip**
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>
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> When debugging exceptions, set your breakpoint like this: `b __cxa_throw`.
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Breakpoint Example:
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(gdb) b __cxa_throw
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(gdb) r
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(gdb) up
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....
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(gdb) up
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#11 0x00007ffff7cbf9ff in icinga::Utility::GlobRecursive(icinga::String const&, icinga::String const&, boost::function<void (icinga::String const&)> const&, int) (path=..., pattern=..., callback=..., type=1)
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at /home/michi/coding/icinga/icinga2/lib/base/utility.cpp:609
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609 callback(cpath);
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(gdb) l
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604
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605 #endif /* _WIN32 */
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606
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607 std::sort(files.begin(), files.end());
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608 BOOST_FOREACH(const String& cpath, files) {
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609 callback(cpath);
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610 }
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611
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612 std::sort(dirs.begin(), dirs.end());
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613 BOOST_FOREACH(const String& cpath, dirs) {
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(gdb) p files
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$3 = std::vector of length 11, capacity 16 = {{static NPos = 18446744073709551615, m_Data = "/etc/icinga2/conf.d/agent.conf"}, {static NPos = 18446744073709551615,
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m_Data = "/etc/icinga2/conf.d/commands.conf"}, {static NPos = 18446744073709551615, m_Data = "/etc/icinga2/conf.d/downtimes.conf"}, {static NPos = 18446744073709551615,
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m_Data = "/etc/icinga2/conf.d/groups.conf"}, {static NPos = 18446744073709551615, m_Data = "/etc/icinga2/conf.d/notifications.conf"}, {static NPos = 18446744073709551615,
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m_Data = "/etc/icinga2/conf.d/satellite.conf"}, {static NPos = 18446744073709551615, m_Data = "/etc/icinga2/conf.d/services.conf"}, {static NPos = 18446744073709551615,
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m_Data = "/etc/icinga2/conf.d/templates.conf"}, {static NPos = 18446744073709551615, m_Data = "/etc/icinga2/conf.d/test.conf"}, {static NPos = 18446744073709551615,
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m_Data = "/etc/icinga2/conf.d/timeperiods.conf"}, {static NPos = 18446744073709551615, m_Data = "/etc/icinga2/conf.d/users.conf"}}
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207
doc/18-debug.md
Normal file
207
doc/18-debug.md
Normal file
@ -0,0 +1,207 @@
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# <a id="debug"></a> Debug Icinga 2
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> **Note**
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>
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> If you are planning to build your own development environment,
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> please consult the `INSTALL.md` file from the source tree.
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## <a id="debug-requirements"></a> Debug Requirements
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Make sure that the debug symbols are available for Icinga 2.
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The Icinga 2 packages provide a debug package which must be
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|
installed separately for all involved binaries, like `icinga2-bin`
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or `icinga2-ido-mysql`.
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Debian/Ubuntu:
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# apt-get install icinga2-dbg
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RHEL/CentOS:
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# yum install icinga2-debuginfo
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SLES/openSUSE:
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# zypper install icinga2-bin-debuginfo icinga2-ido-mysql-debuginfo
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Furthermore, you may also have to install debug symbols for Boost and your C library.
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If you're building your own binaries you should use the `-DCMAKE_BUILD_TYPE=Debug` cmake
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build flag for debug builds.
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## <a id="development-debug-gdb"></a> GDB
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Install gdb:
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Debian/Ubuntu:
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# apt-get install gdb
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RHEL/CentOS/Fedora:
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# yum install gdb
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|
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|
SLES/openSUSE:
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|
|
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# zypper install gdb
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|
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|
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|
Install the `boost`, `python` and `icinga2` pretty printers. Absolute paths are required,
|
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|
so please make sure to update the installation paths accordingly (`pwd`).
|
||||||
|
|
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Boost Pretty Printers:
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|
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$ mkdir -p ~/.gdb_printers && cd ~/.gdb_printers
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|
$ git clone https://github.com/ruediger/Boost-Pretty-Printer.git && cd Boost-Pretty-Printer
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$ pwd
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/home/michi/.gdb_printers/Boost-Pretty-Printer
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Python Pretty Printers:
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$ cd ~/.gdb_printers
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|
$ svn co svn://gcc.gnu.org/svn/gcc/trunk/libstdc++-v3/python
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Icinga 2 Pretty Printers:
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$ mkdir -p ~/.gdb_printers/icinga2 && cd ~/.gdb_printers/icinga2
|
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$ wget https://raw.githubusercontent.com/Icinga/icinga2/master/tools/debug/gdb/icingadbg.py
|
||||||
|
|
||||||
|
Now you'll need to modify/setup your `~/.gdbinit` configuration file.
|
||||||
|
You can download the one from Icinga 2 and modify all paths.
|
||||||
|
|
||||||
|
Example on Fedora:
|
||||||
|
|
||||||
|
$ wget https://raw.githubusercontent.com/Icinga/icinga2/master/tools/debug/gdb/gdbinit -O ~/.gdbinit
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|
$ vim ~/.gdbinit
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set print pretty on
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python
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import sys
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sys.path.insert(0, '/home/michi/.gdb_printers/icinga2')
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from icingadbg import register_icinga_printers
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register_icinga_printers()
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end
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python
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import sys
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sys.path.insert(0, '/home/michi/.gdb_printers/python')
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from libstdcxx.v6.printers import register_libstdcxx_printers
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register_libstdcxx_printers(None)
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end
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||||||
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|
python
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import sys
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||||||
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sys.path.insert(0, '/home/michi/.gdb_printers/Boost-Pretty-Printer')
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||||||
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from boost.printers import register_printer_gen
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|
register_printer_gen(None)
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|
end
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||||||
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|
||||||
|
If you are getting the following error when running gdb, the `libstdcxx`
|
||||||
|
printers are already preloaded in your environment and you can remove
|
||||||
|
the duplicate import in your `~/.gdbinit` file.
|
||||||
|
|
||||||
|
RuntimeError: pretty-printer already registered: libstdc++-v6
|
||||||
|
|
||||||
|
### <a id="development-debug-gdb-run"></a> GDB Run
|
||||||
|
|
||||||
|
Call GDB with the binary and all arguments and run it in foreground.
|
||||||
|
|
||||||
|
# gdb --args /usr/sbin/icinga2 daemon -x debug
|
||||||
|
|
||||||
|
> **Note**
|
||||||
|
>
|
||||||
|
> If gdb tells you it's missing debug symbols, quit gdb and install
|
||||||
|
> them: `Missing separate debuginfos, use: debuginfo-install ...`
|
||||||
|
|
||||||
|
Run the application.
|
||||||
|
|
||||||
|
(gdb) r
|
||||||
|
|
||||||
|
Kill the running application.
|
||||||
|
|
||||||
|
(gdb) k
|
||||||
|
|
||||||
|
Continue after breakpoint.
|
||||||
|
|
||||||
|
(gdb) c
|
||||||
|
|
||||||
|
### <a id="development-debug-gdb-backtrace"></a> GDB Backtrace
|
||||||
|
|
||||||
|
If Icinga 2 aborted its operation abnormally, generate a backtrace.
|
||||||
|
|
||||||
|
(gdb) bt
|
||||||
|
(gdb) bt full
|
||||||
|
|
||||||
|
>**Tip**
|
||||||
|
>
|
||||||
|
> If you're opening an issue at [https://dev.icinga.org] make sure
|
||||||
|
> to attach as much detail as possible.
|
||||||
|
|
||||||
|
|
||||||
|
### <a id="development-debug-gdb-backtrace-stepping"></a> GDB Backtrace Stepping
|
||||||
|
|
||||||
|
Identifying the problem may require stepping into the backtrace, analysing
|
||||||
|
the current scope, attributes, and possible unmet requirements. `p` prints
|
||||||
|
the value of the selected variable or function call result.
|
||||||
|
|
||||||
|
(gdb) up
|
||||||
|
(gdb) down
|
||||||
|
(gdb) p checkable
|
||||||
|
(gdb) p checkable.px->m_Name
|
||||||
|
|
||||||
|
|
||||||
|
### <a id="development-debug-gdb-breakpoint"></a> GDB Breakpoints
|
||||||
|
|
||||||
|
To set a breakpoint to a specific function call, or file specific line.
|
||||||
|
|
||||||
|
(gdb) b checkable.cpp:125
|
||||||
|
(gdb) b icinga::Checkable::SetEnablePerfdata
|
||||||
|
|
||||||
|
GDB will ask about loading the required symbols later, select `yes` instead
|
||||||
|
of `no`.
|
||||||
|
|
||||||
|
Then run Icinga 2 until it reaches the first breakpoint. Continue with `c`
|
||||||
|
afterwards.
|
||||||
|
|
||||||
|
(gdb) run
|
||||||
|
(gdb) c
|
||||||
|
|
||||||
|
If you want to delete all breakpoints, use `d` and select `yes`.
|
||||||
|
|
||||||
|
(gdb) d
|
||||||
|
|
||||||
|
> **Tip**
|
||||||
|
>
|
||||||
|
> When debugging exceptions, set your breakpoint like this: `b __cxa_throw`.
|
||||||
|
|
||||||
|
Breakpoint Example:
|
||||||
|
|
||||||
|
(gdb) b __cxa_throw
|
||||||
|
(gdb) r
|
||||||
|
(gdb) up
|
||||||
|
....
|
||||||
|
(gdb) up
|
||||||
|
#11 0x00007ffff7cbf9ff in icinga::Utility::GlobRecursive(icinga::String const&, icinga::String const&, boost::function<void (icinga::String const&)> const&, int) (path=..., pattern=..., callback=..., type=1)
|
||||||
|
at /home/michi/coding/icinga/icinga2/lib/base/utility.cpp:609
|
||||||
|
609 callback(cpath);
|
||||||
|
(gdb) l
|
||||||
|
604
|
||||||
|
605 #endif /* _WIN32 */
|
||||||
|
606
|
||||||
|
607 std::sort(files.begin(), files.end());
|
||||||
|
608 BOOST_FOREACH(const String& cpath, files) {
|
||||||
|
609 callback(cpath);
|
||||||
|
610 }
|
||||||
|
611
|
||||||
|
612 std::sort(dirs.begin(), dirs.end());
|
||||||
|
613 BOOST_FOREACH(const String& cpath, dirs) {
|
||||||
|
(gdb) p files
|
||||||
|
$3 = std::vector of length 11, capacity 16 = {{static NPos = 18446744073709551615, m_Data = "/etc/icinga2/conf.d/agent.conf"}, {static NPos = 18446744073709551615,
|
||||||
|
m_Data = "/etc/icinga2/conf.d/commands.conf"}, {static NPos = 18446744073709551615, m_Data = "/etc/icinga2/conf.d/downtimes.conf"}, {static NPos = 18446744073709551615,
|
||||||
|
m_Data = "/etc/icinga2/conf.d/groups.conf"}, {static NPos = 18446744073709551615, m_Data = "/etc/icinga2/conf.d/notifications.conf"}, {static NPos = 18446744073709551615,
|
||||||
|
m_Data = "/etc/icinga2/conf.d/satellite.conf"}, {static NPos = 18446744073709551615, m_Data = "/etc/icinga2/conf.d/services.conf"}, {static NPos = 18446744073709551615,
|
||||||
|
m_Data = "/etc/icinga2/conf.d/templates.conf"}, {static NPos = 18446744073709551615, m_Data = "/etc/icinga2/conf.d/test.conf"}, {static NPos = 18446744073709551615,
|
||||||
|
m_Data = "/etc/icinga2/conf.d/timeperiods.conf"}, {static NPos = 18446744073709551615, m_Data = "/etc/icinga2/conf.d/users.conf"}}
|
||||||
@ -1430,7 +1430,7 @@ Rephrased: If the parent service object changes into the `Warning` state, this
|
|||||||
dependency will fail and render all child objects (hosts or services) unreachable.
|
dependency will fail and render all child objects (hosts or services) unreachable.
|
||||||
|
|
||||||
You can determine the child's reachability by querying the `is_reachable` attribute
|
You can determine the child's reachability by querying the `is_reachable` attribute
|
||||||
in for example [DB IDO](18-appendix.md#schema-db-ido-extensions).
|
in for example [DB IDO](19-apendix.md#schema-db-ido-extensions).
|
||||||
|
|
||||||
### <a id="dependencies-implicit-host-service"></a> Implicit Dependencies for Services on Host
|
### <a id="dependencies-implicit-host-service"></a> Implicit Dependencies for Services on Host
|
||||||
|
|
||||||
|
|||||||
@ -276,7 +276,7 @@ a forced service check:
|
|||||||
|
|
||||||
### <a id="external-command-list"></a> External Command List
|
### <a id="external-command-list"></a> External Command List
|
||||||
|
|
||||||
A list of currently supported external commands can be found [here](18-appendix.md#external-commands-list-detail).
|
A list of currently supported external commands can be found [here](19-apendix.md#external-commands-list-detail).
|
||||||
|
|
||||||
Detailed information on the commands and their required parameters can be found
|
Detailed information on the commands and their required parameters can be found
|
||||||
on the [Icinga 1.x documentation](http://docs.icinga.org/latest/en/extcommands2.html).
|
on the [Icinga 1.x documentation](http://docs.icinga.org/latest/en/extcommands2.html).
|
||||||
@ -613,7 +613,7 @@ Example for PostgreSQL:
|
|||||||
(1 Zeile)
|
(1 Zeile)
|
||||||
|
|
||||||
|
|
||||||
A detailed list on the available table attributes can be found in the [DB IDO Schema documentation](18-appendix.md#schema-db-ido).
|
A detailed list on the available table attributes can be found in the [DB IDO Schema documentation](19-apendix.md#schema-db-ido).
|
||||||
|
|
||||||
|
|
||||||
## <a id="check-result-files"></a> Check Result Files
|
## <a id="check-result-files"></a> Check Result Files
|
||||||
|
|||||||
@ -789,7 +789,7 @@ SNMP Traps can be received and filtered by using [SNMPTT](http://snmptt.sourcefo
|
|||||||
and specific trap handlers passing the check results to Icinga 2.
|
and specific trap handlers passing the check results to Icinga 2.
|
||||||
|
|
||||||
Following the SNMPTT [Format](http://snmptt.sourceforge.net/docs/snmptt.shtml#SNMPTT.CONF-FORMAT)
|
Following the SNMPTT [Format](http://snmptt.sourceforge.net/docs/snmptt.shtml#SNMPTT.CONF-FORMAT)
|
||||||
documentation and the Icinga external command syntax found [here](18-appendix.md#external-commands-list-detail)
|
documentation and the Icinga external command syntax found [here](19-apendix.md#external-commands-list-detail)
|
||||||
we can create generic services that can accommodate any number of hosts for a given scenario.
|
we can create generic services that can accommodate any number of hosts for a given scenario.
|
||||||
|
|
||||||
#### <a id="simple-traps"></a> Simple SNMP Traps
|
#### <a id="simple-traps"></a> Simple SNMP Traps
|
||||||
|
|||||||
Loading…
x
Reference in New Issue
Block a user