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Description of problem:
When issuing a command using lsmcli and aborting it (CTRL+C), there is quite high change to get broken pipe error. I think it matters mostly on timing, so with proper timing user would get this every time.
I tested ontap and sim plugins, got broken pipe on both.
I tested lsmcli commands volume-create, volume-delete, volume-replicate-range and managed to get broken pipe with all of them.
Ontap:
# lsmcli volume-create --name broken_pipe --size 10G --pool /vol/vol0
^C
# systemctl status libstoragemgmt
● libstoragemgmt.service - libstoragemgmt plug-in server daemon
Loaded: loaded (/usr/lib/systemd/system/libstoragemgmt.service; enabled; vendor preset: enabled)
Active: active (running) since Fri 2018-05-25 09:22:47 CEST; 2h 11min ago
Main PID: 1289 (lsmd)
Tasks: 2 (limit: 4915)
CGroup: /system.slice/libstoragemgmt.service
└─1289 /usr/bin/lsmd -d
May 25 09:22:47 localhost.localdomain systemd[1]: Started libstoragemgmt plug-in server daemon.
May 25 11:34:33 localhost.localdomain /ontap_lsmplugin[9208]: ontap_lsmplugin: Unhandled exception in plug-in!
May 25 11:34:33 localhost.localdomain /ontap_lsmplugin[9208]: ontap_lsmplugin: Traceback (most recent call last):
May 25 11:34:33 localhost.localdomain /ontap_lsmplugin[9208]: ontap_lsmplugin: File "/usr/lib/python3.6/site-packages/lsm/_pluginrunner.py", line 114, in run
May 25 11:34:33 localhost.localdomain /ontap_lsmplugin[9208]: ontap_lsmplugin: self.tp.send_resp(result)
May 25 11:34:33 localhost.localdomain /ontap_lsmplugin[9208]: ontap_lsmplugin: File "/usr/lib/python3.6/site-packages/lsm/_transport.py", line 171, in send_resp
May 25 11:34:33 localhost.localdomain /ontap_lsmplugin[9208]: ontap_lsmplugin: self._send_msg(json.dumps(r, cls=_DataEncoder))
May 25 11:34:33 localhost.localdomain /ontap_lsmplugin[9208]: ontap_lsmplugin: File "/usr/lib/python3.6/site-packages/lsm/_transport.py", line 75, in _send_msg
May 25 11:34:33 localhost.localdomain /ontap_lsmplugin[9208]: ontap_lsmplugin: self.s.sendall(bytes(s.encode('utf-8')))
May 25 11:34:33 localhost.localdomain /ontap_lsmplugin[9208]: ontap_lsmplugin: BrokenPipeError: [Errno 32] Broken pipe
Sim:
# lsmcli -u "sim://" volume-delete --vol VOL_ID_00001 --force
^C
# systemctl status libstoragemgmt0G
● libstoragemgmt.service - libstoragemgmt plug-in server daemon
Loaded: loaded (/usr/lib/systemd/system/libstoragemgmt.service; enabled; vendor preset: enabled)
Active: active (running) since Fri 2018-05-25 11:32:02 CEST; 59s ago
Main PID: 1898 (lsmd)
CGroup: /system.slice/libstoragemgmt.service
└─1898 /usr/bin/lsmd -d
May 25 11:32:02 ***** systemd[1]: Starting libstoragemgmt plug-in server daemon...
May 25 11:32:59 ***** sim_lsmplugin[1909]: sim_lsmplugin: Unhandled exception in plug-in!
May 25 11:32:59 ***** sim_lsmplugin[1909]: sim_lsmplugin: Traceback (most recent call last):
May 25 11:32:59 ***** sim_lsmplugin[1909]: sim_lsmplugin: File "/usr/lib/python2.7/site-packages/lsm/_pluginrunner.py", line 114, in run
May 25 11:32:59 ***** sim_lsmplugin[1909]: sim_lsmplugin: self.tp.send_resp(result)
May 25 11:32:59 ***** sim_lsmplugin[1909]: sim_lsmplugin: File "/usr/lib/python2.7/site-packages/lsm/_transport.py", line 171, in send_resp
May 25 11:32:59 ***** sim_lsmplugin[1909]: sim_lsmplugin: self._send_msg(json.dumps(r, cls=_DataEncoder))
May 25 11:32:59 ***** sim_lsmplugin[1909]: sim_lsmplugin: File "/usr/lib/python2.7/site-packages/lsm/_transport.py", line 75, in _send_msg
May 25 11:32:59 ***** sim_lsmplugin[1909]: sim_lsmplugin: self.s.sendall(bytes(s.encode('utf-8')))
May 25 11:32:59 ***** sim_lsmplugin[1909]: sim_lsmplugin: error: [Errno 32] Broken pipe
Version-Release number of selected component (if applicable):
libstoragemgmt-1.6.2-1
How reproducible:
90% manual, with proper timing 100%
Steps to Reproduce:
1. interrupt lsmcli command
2. check systemctl status libstoragemgmt
Actual results:
broken pipe error due to unhandled exception in plugin
Expected results:
no broken pipe
Additional info:
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://access.redhat.com/errata/RHBA-2018:3112
Description of problem: When issuing a command using lsmcli and aborting it (CTRL+C), there is quite high change to get broken pipe error. I think it matters mostly on timing, so with proper timing user would get this every time. I tested ontap and sim plugins, got broken pipe on both. I tested lsmcli commands volume-create, volume-delete, volume-replicate-range and managed to get broken pipe with all of them. Ontap: # lsmcli volume-create --name broken_pipe --size 10G --pool /vol/vol0 ^C # systemctl status libstoragemgmt ● libstoragemgmt.service - libstoragemgmt plug-in server daemon Loaded: loaded (/usr/lib/systemd/system/libstoragemgmt.service; enabled; vendor preset: enabled) Active: active (running) since Fri 2018-05-25 09:22:47 CEST; 2h 11min ago Main PID: 1289 (lsmd) Tasks: 2 (limit: 4915) CGroup: /system.slice/libstoragemgmt.service └─1289 /usr/bin/lsmd -d May 25 09:22:47 localhost.localdomain systemd[1]: Started libstoragemgmt plug-in server daemon. May 25 11:34:33 localhost.localdomain /ontap_lsmplugin[9208]: ontap_lsmplugin: Unhandled exception in plug-in! May 25 11:34:33 localhost.localdomain /ontap_lsmplugin[9208]: ontap_lsmplugin: Traceback (most recent call last): May 25 11:34:33 localhost.localdomain /ontap_lsmplugin[9208]: ontap_lsmplugin: File "/usr/lib/python3.6/site-packages/lsm/_pluginrunner.py", line 114, in run May 25 11:34:33 localhost.localdomain /ontap_lsmplugin[9208]: ontap_lsmplugin: self.tp.send_resp(result) May 25 11:34:33 localhost.localdomain /ontap_lsmplugin[9208]: ontap_lsmplugin: File "/usr/lib/python3.6/site-packages/lsm/_transport.py", line 171, in send_resp May 25 11:34:33 localhost.localdomain /ontap_lsmplugin[9208]: ontap_lsmplugin: self._send_msg(json.dumps(r, cls=_DataEncoder)) May 25 11:34:33 localhost.localdomain /ontap_lsmplugin[9208]: ontap_lsmplugin: File "/usr/lib/python3.6/site-packages/lsm/_transport.py", line 75, in _send_msg May 25 11:34:33 localhost.localdomain /ontap_lsmplugin[9208]: ontap_lsmplugin: self.s.sendall(bytes(s.encode('utf-8'))) May 25 11:34:33 localhost.localdomain /ontap_lsmplugin[9208]: ontap_lsmplugin: BrokenPipeError: [Errno 32] Broken pipe Sim: # lsmcli -u "sim://" volume-delete --vol VOL_ID_00001 --force ^C # systemctl status libstoragemgmt0G ● libstoragemgmt.service - libstoragemgmt plug-in server daemon Loaded: loaded (/usr/lib/systemd/system/libstoragemgmt.service; enabled; vendor preset: enabled) Active: active (running) since Fri 2018-05-25 11:32:02 CEST; 59s ago Main PID: 1898 (lsmd) CGroup: /system.slice/libstoragemgmt.service └─1898 /usr/bin/lsmd -d May 25 11:32:02 ***** systemd[1]: Starting libstoragemgmt plug-in server daemon... May 25 11:32:59 ***** sim_lsmplugin[1909]: sim_lsmplugin: Unhandled exception in plug-in! May 25 11:32:59 ***** sim_lsmplugin[1909]: sim_lsmplugin: Traceback (most recent call last): May 25 11:32:59 ***** sim_lsmplugin[1909]: sim_lsmplugin: File "/usr/lib/python2.7/site-packages/lsm/_pluginrunner.py", line 114, in run May 25 11:32:59 ***** sim_lsmplugin[1909]: sim_lsmplugin: self.tp.send_resp(result) May 25 11:32:59 ***** sim_lsmplugin[1909]: sim_lsmplugin: File "/usr/lib/python2.7/site-packages/lsm/_transport.py", line 171, in send_resp May 25 11:32:59 ***** sim_lsmplugin[1909]: sim_lsmplugin: self._send_msg(json.dumps(r, cls=_DataEncoder)) May 25 11:32:59 ***** sim_lsmplugin[1909]: sim_lsmplugin: File "/usr/lib/python2.7/site-packages/lsm/_transport.py", line 75, in _send_msg May 25 11:32:59 ***** sim_lsmplugin[1909]: sim_lsmplugin: self.s.sendall(bytes(s.encode('utf-8'))) May 25 11:32:59 ***** sim_lsmplugin[1909]: sim_lsmplugin: error: [Errno 32] Broken pipe Version-Release number of selected component (if applicable): libstoragemgmt-1.6.2-1 How reproducible: 90% manual, with proper timing 100% Steps to Reproduce: 1. interrupt lsmcli command 2. check systemctl status libstoragemgmt Actual results: broken pipe error due to unhandled exception in plugin Expected results: no broken pipe Additional info: