zabbix-tools/g2z

Write Zabbix modules in Go!

g2z's Issues

Deadlocks under load

When under load with zabbix_agent_bench, if all zabbix_agentd: listener pids happen to process identical item keys at the same time, they appear to deadlock at futex().

I didn't find any calls to futex() in the Zabbix or g2z codebase, so I'm assuming it's occurring somewhere in Go's concurrency logic.

net.Dial doesn't work in zabbix_agentd

When run zabbix_agentd -t key all is working fine. When try zabbix_get with the same key the library hangs on net.Dial.

 g2z.LogInfof("Before dial")
 conn, err := net.DialTimeout("tcp", servAddr, time.Duration(2*time.Second) )
 g2z.LogInfof("After dial")
 if err != nil {
        g2z.LogInfof("Dial failed")
        return "", errors.New("Dial failed")
 }
 g2z.LogInfof("Dial ok")

Log file have "Before dial" and never "After dial" and "Dial ok". Timeout in Dial also doesn't work.

Can not support zabbix 3.2

I use gopkg.in/cavaliercoder/g2z.v3/,but it is not support,the log is

`` 19834:20170611:183512.625 Starting Zabbix Agent [Zabbix server]. Zabbix 3.2.6 (revision 67849).
19834:20170611:183512.625 **** Enabled features ****
19834:20170611:183512.625 IPv6 support: NO
19834:20170611:183512.625 TLS support: NO
19834:20170611:183512.625 **************************
19834:20170611:183512.625 using configuration file: /usr/local/zabbix/etc/zabbix_agentd.conf
19834:20170611:183512.628 unsupported module "dummy.so" version: 1
19834:20170611:183512.628 loading modules failed, exiting...
~

The name g2z sucks

For the life of me I couldn't think of a better name for this project. Maybe zmod?? Seems too ambiguous.

Suggestions are welcomed!

Segmentation fault in `zabbix_agentd -t`

When testing keys in a Go module with zabbix_agentd -t, occasionally the agent segfaults before exiting with no stack trace printed. This is also observed although much less frequently in zabbix_agentd -p.

This does not appear to be an issue in the daemonized agent.

Go v1.6: cgo result has Go pointer

Since updating to Go v1.6, zbx_module_item_list() produces the following issue:

$ zabbix_agentd -p
zabbix_agentd [391]: Dummy module initialized
panic: runtime error: cgo result has Go pointer

goroutine 17 [running, locked to thread]:
panic(0x7ff6bba66340, 0xc82002e320)
    /usr/local/go/src/runtime/panic.go:464 +0x3ea
github.com/cavaliercoder/g2z._cgoexpwrap_d7801daa201c_zbx_module_item_list.func1(0xc82002aee0)
    ??:0 +0x3c
github.com/cavaliercoder/g2z._cgoexpwrap_d7801daa201c_zbx_module_item_list(0xc82000c180)
    ??:0 +0x5d
Aborted

Duplicate symbols in `go test`

Tests work fine in the Dummy module, but any tests run for the g2z package fail with:

$ go test -v
# testmain
2015/08/29 15:41:53 duplicate symbol _cgoexp_d7801daa201c_zbx_module_api_version (types 1 and 1) in _/usr/src/g2z and $WORK/github.com/cavaliercoder/g2z.a(_go_.o)
FAIL    _/usr/src/g2z [build failed]