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Type: Problem report
Resolution: Fixed
Priority: Trivial
Fix Version/s: 4.0.40rc1, 5.0.23rc1, 6.0.4rc1, 6.2.0alpha1, 6.2 (plan)
Affects Version/s: 4.0.39, 5.0.22, 6.0.3, 6.2.0alpha1
Component/s: Proxy (P), Server (S)
Labels:
- externalchecks
- signal

Sprint:
Sprint 87 (Apr 2022)
Story Points:
1

It seems that the read function receives a signal interrupt and is flowing to the timeout route.

Steps to reproduce:

create item
```
test02.sh[{HOST.HOST}] 
```

script

!/usr/bin/sh
HOST=$1
logger zabbix:start external script test:$1
sleep 25
echo `date` $1
logger zabbix:stop external script test:$1

Stop Zabbix while running external check.

Result:

  4455:20220405:114213.569 Got signal [signal:15(SIGTERM),sender_pid:4569,sender_uid:0,reason:0]. Exiting ...
  4455:20220405:114213.569 zbx_on_exit() called
  4467:20220405:114213.569 End of zbx_ipc_service_recv():2
  4467:20220405:114213.569 __zbx_zbx_setproctitle() title:'preprocessing manager #1 [terminated]'
  4473:20220405:114213.576 __zbx_zbx_setproctitle() title:'timer #1 [terminated]'
  4478:20220405:114213.577 __zbx_zbx_setproctitle() title:'history syncer #1 [processed 0 values, 0 triggers in 0.000201 sec, syncing history]'
  4478:20220405:114213.577 syncing history data in progress... 
  4478:20220405:114213.577 syncing history data done
  4478:20220405:114213.577 In zbx_sync_history_cache() history_num:0
  4478:20220405:114213.577 End of zbx_sync_history_cache()
  4478:20220405:114213.577 __zbx_zbx_setproctitle() title:'history syncer #1 [processed 0 values, 0 triggers in 0.000376 sec, idle 1 sec]'
  4479:20220405:114213.588 __zbx_zbx_setproctitle() title:'history syncer #2 [processed 0 values, 0 triggers in 0.000197 sec, syncing history]'
  4479:20220405:114213.588 In zbx_sync_history_cache() history_num:0
  4479:20220405:114213.588 End of zbx_sync_history_cache()
  4479:20220405:114213.589 __zbx_zbx_setproctitle() title:'history syncer #2 [processed 0 values, 0 triggers in 0.000296 sec, idle 1 sec]'
  4480:20220405:114213.601 __zbx_zbx_setproctitle() title:'history syncer #3 [processed 0 values, 0 triggers in 0.000193 sec, syncing history]'
  4480:20220405:114213.601 In zbx_sync_history_cache() history_num:0
  4480:20220405:114213.601 End of zbx_sync_history_cache()
  4480:20220405:114213.601 __zbx_zbx_setproctitle() title:'history syncer #3 [processed 0 values, 0 triggers in 0.000416 sec, idle 1 sec]'
  4481:20220405:114213.611 __zbx_zbx_setproctitle() title:'history syncer #4 [processed 0 values, 0 triggers in 0.000209 sec, syncing history]'
  4481:20220405:114213.611 In zbx_sync_history_cache() history_num:0
  4481:20220405:114213.611 End of zbx_sync_history_cache()
  4481:20220405:114213.611 __zbx_zbx_setproctitle() title:'history syncer #4 [processed 0 values, 0 triggers in 0.000303 sec, idle 1 sec]'
  4483:20220405:114213.623 __zbx_zbx_setproctitle() title:'snmp trapper #1 [terminated]'
  4492:20220405:114213.624 __zbx_zbx_setproctitle() title:'self-monitoring #1 [terminated]'
  4497:20220405:114213.624 In zbx_waitpid()
  4516:20220405:114213.625 __zbx_zbx_setproctitle() title:'trapper #1 [terminated]'
  4517:20220405:114213.625 __zbx_zbx_setproctitle() title:'trapper #2 [terminated]'
  4520:20220405:114213.626 __zbx_zbx_setproctitle() title:'trapper #3 [terminated]'
  4521:20220405:114213.626 __zbx_zbx_setproctitle() title:'trapper #4 [terminated]'
  4522:20220405:114213.626 __zbx_zbx_setproctitle() title:'trapper #5 [terminated]'
  4497:20220405:114213.628 zbx_waitpid() killed by signal 15
  4497:20220405:114213.628 End of zbx_waitpid():4560
  4497:20220405:114213.628 Failed to execute command "/usr/lib/zabbix/externalscripts/test02.sh 'Zabbix server'": Timeout while executing a shell script.
  4497:20220405:114213.628 End of get_value_external():NOTSUPPORTED
  4497:20220405:114213.628 Item [Zabbix server:test02.sh[{HOST.HOST}]] error: Timeout while executing a shell script.
  4497:20220405:114213.628 End of get_value():NOTSUPPORTED
  4497:20220405:114213.629 In zbx_activate_item_host() hostid:10084 itemid:28869 type:10
  4497:20220405:114213.629 End of zbx_activate_item_host()
  4497:20220405:114213.629 In zbx_preprocess_item_value()
  4497:20220405:114213.629 End of zbx_preprocess_item_value()
  4497:20220405:114213.629 In zbx_ipc_socket_write()
  4497:20220405:114213.629 End of zbx_ipc_socket_write():SUCCEED
  4497:20220405:114213.629 End of get_values():1
  4497:20220405:114213.629 __zbx_zbx_setproctitle() title:'poller #2 [got 1 values in 4.073290 sec, idle 5 sec]'
  4455:20220405:114213.734 In DBconnect() flag:1
  4455:20220405:114213.739 End of DBconnect():0
  4455:20220405:114213.739 In free_database_cache()
  4455:20220405:114213.739 In DCsync_all()
  4455:20220405:114213.740 In sync_history_cache_full() history_num:0
  4455:20220405:114213.740 End of sync_history_cache_full()
  4455:20220405:114213.740 In DCsync_trends() trends_num:0
  4455:20220405:114213.740 syncing trend data...
  4455:20220405:114213.740 query [txnlev:1] [begin;]
  4455:20220405:114213.740 query [txnlev:1] [commit;]
  4455:20220405:114213.741 syncing trend data done
  4455:20220405:114213.741 End of DCsync_trends()
  4455:20220405:114213.741 End of DCsync_all()
  4455:20220405:114213.741 End of free_database_cache()
  4455:20220405:114213.741 In free_configuration_cache()
  4455:20220405:114213.741 End of free_configuration_cache()
  4455:20220405:114213.741 In zbx_vc_destroy()
  4455:20220405:114213.741 End of zbx_vc_destroy()
  4455:20220405:114213.742 In free_selfmon_collector() collector:0x7fe0520c8000
  4455:20220405:114213.742 End of free_selfmon_collector()
  4455:20220405:114213.742 In zbx_unload_modules()
  4455:20220405:114213.742 End of zbx_unload_modules()
  4455:20220405:114213.742 Zabbix Server stopped. Zabbix 4.0.39 (revision 2e19ee1c57).

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