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December 2018

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[Cinder] 인스턴스 생성 시 volume 연결 문제
by Minjun Hong 20 Dec '18

20 Dec '18

안녕하세요. Openstack을 학교 서버에 수동으로 설치 중인데, Cinder 관련 해서 문제가 발생해서 도움 요청 합니다. Queens 버전 최소 설치 가이드 ( https://docs.openstack.org/cinder/queens/install/index-ubuntu.html)를 참고 해서 설치 중인데, 인스턴스를 생성 할 때, 해당 인스턴스가 사용할 volume을 storage server에서 못받아 오는 것 처럼 보입니다. iSCSI를 위한 tgt 서비스를 보면, 뭔가 커널 모듈이 추가적으로 로드 되어야 하는거 같은데, 이게 스토리지 서버에 있는 RAID controller 와 관련이 있을까요? 아래는 tgt 서비스의 상태입니다. ● tgt.service - (i)SCSI target daemon > Loaded: loaded (/lib/systemd/system/tgt.service; enabled; vendor > preset: enabled) > Active: active (running) since Wed 2018-12-19 22:05:55 KST; 26min ago > Docs: man:tgtd(8) > Process: 2249 ExecStartPost=/usr/sbin/tgtadm --op update --mode sys > --name State -v ready (code=exited, status=0/SUCCESS) > Process: 2230 ExecStartPost=/usr/sbin/tgt-admin -e -c > /etc/tgt/targets.conf (code=exited, status=0/SUCCESS) > Process: 2206 ExecStartPost=/usr/sbin/tgtadm --op update --mode sys > --name State -v offline (code=exited, status=0/SUCCESS) > Main PID: 2170 (tgtd) > Status: "Starting event loop..." > Tasks: 1 > Memory: 2.7M > CPU: 87ms > CGroup: /system.slice/tgt.service > └─2170 /usr/sbin/tgtd -f > Dec 19 22:05:55 node0 systemd[1]: Starting (i)SCSI target daemon... > Dec 19 22:05:55 node0 tgtd[2170]: tgtd: iser_ib_init(3434) Failed to > initialize RDMA; load kernel modules? > Dec 19 22:05:55 node0 tgtd[2170]: tgtd: work_timer_start(150) use signal > based scheduler > Dec 19 22:05:55 node0 tgtd[2170]: tgtd: bs_init(387) use signalfd > notification > Dec 19 22:05:55 node0 systemd[1]: Started (i)SCSI target daemon. 그리고 아래는 cinder 서비스의 상태 입니다. ● cinder-volume.service - OpenStack Cinder Volume > Loaded: loaded (/lib/systemd/system/cinder-volume.service; enabled; > vendor preset: enabled) > Active: active (running) since Wed 2018-12-19 22:05:55 KST; 45min ago > Main PID: 2110 (cinder-volume) > Tasks: 2 > Memory: 210.2M > CPU: 1min 23.649s > CGroup: /system.slice/cinder-volume.service > ├─2110 /usr/bin/python2 /usr/bin/cinder-volume > --config-file=/etc/cinder/cinder.conf > --log-file=/var/log/cinder/cinder-volume.log > └─2657 /usr/bin/python2 /usr/bin/cinder-volume > --config-file=/etc/cinder/cinder.conf > --log-file=/var/log/cinder/cinder-volume.log > Dec 19 22:05:55 node0 systemd[1]: Started OpenStack Cinder Volume. > Dec 19 22:06:00 node0 sudo[2658]: pam_unix(sudo:auth): auth could not > identify password for [cinder] Cinder-volume의 로그는 계속해서 cinder-volume 서비스가 통신을 못하고 있는 것 처럼 보이는데, 아래와 같이 volume에 접근 하려고 할 때 (e.g. instance 생성), 에러 메시지가 출력 되고, 그 이후에는 계속해서 동일한 메시지가 매초 반복되고 있습니다. 2018-12-19 22:04:00.747 35996 INFO oslo_service.service > [req-bcc39e60-531e-4484-ab4b-bab085d112c4 - - - - -] Caught SIGTERM, > stopping children > 2018-12-19 22:04:00.784 35996 INFO oslo_service.service > [req-bcc39e60-531e-4484-ab4b-bab085d112c4 - - - - -] Waiting on 1 children > to exit > 2018-12-19 22:04:00.809 35996 INFO oslo_service.service > [req-bcc39e60-531e-4484-ab4b-bab085d112c4 - - - - -] Child 36039 killed by > signal 15 > 2018-12-19 22:05:58.378 2110 INFO root [-] Generating grammar tables from > /usr/lib/python2.7/lib2to3/Grammar.txt > 2018-12-19 22:05:58.403 2110 INFO root [-] Generating grammar tables from > /usr/lib/python2.7/lib2to3/PatternGrammar.txt > 2018-12-19 22:05:59.820 2110 INFO cinder.rpc > [req-b3178448-4e17-489b-8267-2fd7992bc876 - - - - -] Automatically selected > cinder-scheduler objects version 1.35 as minimum service version. > 2018-12-19 22:05:59.826 2110 INFO cinder.rpc > [req-b3178448-4e17-489b-8267-2fd7992bc876 - - - - -] Automatically selected > cinder-scheduler RPC version 3.10 as minimum service version. > 2018-12-19 22:05:59.875 2110 INFO cinder.volume.manager > [req-b3178448-4e17-489b-8267-2fd7992bc876 - - - - -] Determined volume DB > was empty at startup. > 2018-12-19 22:05:59.908 2110 WARNING oslo_config.cfg > [req-b3178448-4e17-489b-8267-2fd7992bc876 - - - - -] Option "iscsi_helper" > from group "lvm" is deprecated. Use option "target_helper" from group "lvm". > 2018-12-19 22:05:59.914 2110 WARNING oslo_config.cfg > [req-b3178448-4e17-489b-8267-2fd7992bc876 - - - - -] Option > "iscsi_protocol" from group "lvm" is deprecated. Use option > "target_protocol" from group "lvm". > 2018-12-19 22:05:59.916 2110 INFO cinder.volume.manager > [req-b3178448-4e17-489b-8267-2fd7992bc876 - - - - -] Image-volume cache > disabled for host node0@lvm. > 2018-12-19 22:05:59.932 2110 INFO oslo_service.service > [req-b3178448-4e17-489b-8267-2fd7992bc876 - - - - -] Starting 1 workers > 2018-12-19 22:05:59.940 2657 INFO cinder.service > [req-b3178448-4e17-489b-8267-2fd7992bc876 - - - - -] Starting cinder-volume > node (version 13.0.0) > 2018-12-19 22:05:59.942 2110 WARNING oslo_config.cfg > [req-b3178448-4e17-489b-8267-2fd7992bc876 - - - - -] Option "iscsi_helper" > from group "DEFAULT" is deprecated. Use option "target_helper" from group > "DEFAULT". > 2018-12-19 22:05:59.952 2110 WARNING oslo_config.cfg > [req-b3178448-4e17-489b-8267-2fd7992bc876 - - - - -] Option "auth_uri" from > group "keystone_authtoken" is deprecated for removal (The auth_uri option > is deprecated in favor of www_authenticate_uri and will be removed in the > S release.). Its value may be silently ignored in the future. > 2018-12-19 22:05:59.953 2110 WARNING oslo_config.cfg > [req-b3178448-4e17-489b-8267-2fd7992bc876 - - - - -] Option "auth_uri" from > group "keystone_authtoken" is deprecated. Use option "www_authenticate_uri" > from group "keystone_authtoken". > 2018-12-19 22:05:59.961 2657 INFO cinder.volume.manager > [req-b3178448-4e17-489b-8267-2fd7992bc876 - - - - -] Starting volume driver > LVMVolumeDriver (3.0.0) > 2018-12-19 22:06:00.007 2657 ERROR cinder.volume.manager > [req-b3178448-4e17-489b-8267-2fd7992bc876 - - - - -] Failed to initialize > driver.: ProcessExecutionError: Unexpected error while running command. > Command: sudo cinder-rootwrap /etc/cinder/rootwrap.conf env LC_ALL=C vgs > --version > Exit code: 1 > Stdout: u'' > Stderr: u'sudo: no tty present and no askpass program specified\n' > 2018-12-19 22:06:00.007 2657 ERROR cinder.volume.manager Traceback (most > recent call last): > 2018-12-19 22:06:00.007 2657 ERROR cinder.volume.manager File > "/opt/stack/cinder/cinder/volume/manager.py", line 433, in init_host > 2018-12-19 22:06:00.007 2657 ERROR cinder.volume.manager > self.driver.check_for_setup_error() > 2018-12-19 22:06:00.007 2657 ERROR cinder.volume.manager File > "/opt/stack/cinder/cinder/volume/drivers/lvm.py", line 286, in > check_for_setup_error > 2018-12-19 22:06:00.007 2657 ERROR cinder.volume.manager if > volutils.supports_thin_provisioning(): > 2018-12-19 22:06:00.007 2657 ERROR cinder.volume.manager File > "/opt/stack/cinder/cinder/volume/utils.py", line 628, in > supports_thin_provisioning > 2018-12-19 22:06:00.007 2657 ERROR cinder.volume.manager > utils.get_root_helper()) > 2018-12-19 22:06:00.007 2657 ERROR cinder.volume.manager File > "/opt/stack/cinder/cinder/brick/local_dev/lvm.py", line 225, in > supports_thin_provisioning > 2018-12-19 22:06:00.007 2657 ERROR cinder.volume.manager return > LVM.get_lvm_version(root_helper) >= (2, 2, 95) > 2018-12-19 22:06:00.007 2657 ERROR cinder.volume.manager File > "/opt/stack/cinder/cinder/brick/local_dev/lvm.py", line 202, in > get_lvm_version > 2018-12-19 22:06:00.007 2657 ERROR cinder.volume.manager > run_as_root=True) > 2018-12-19 22:06:00.007 2657 ERROR cinder.volume.manager File > "/usr/local/lib/python2.7/dist-packages/oslo_concurrency/processutils.py", > line 424, in execute > 2018-12-19 22:06:00.007 2657 ERROR cinder.volume.manager > cmd=sanitized_cmd) > 2018-12-19 22:06:00.007 2657 ERROR cinder.volume.manager > ProcessExecutionError: Unexpected error while running command. > 2018-12-19 22:06:00.007 2657 ERROR cinder.volume.manager Command: sudo > cinder-rootwrap /etc/cinder/rootwrap.conf env LC_ALL=C vgs --version > 2018-12-19 22:06:00.007 2657 ERROR cinder.volume.manager Exit code: 1 > 2018-12-19 22:06:00.007 2657 ERROR cinder.volume.manager Stdout: u'' > 2018-12-19 22:06:00.007 2657 ERROR cinder.volume.manager Stderr: u'sudo: > no tty present and no askpass program specified\n' > 2018-12-19 22:06:00.007 2657 ERROR cinder.volume.manager > 2018-12-19 22:06:00.075 2657 INFO cinder.volume.manager > [req-b3178448-4e17-489b-8267-2fd7992bc876 - - - - -] Initializing RPC > dependent components of volume driver LVMVolumeDriver (3.0.0) > 2018-12-19 22:06:00.076 2657 ERROR cinder.utils > [req-b3178448-4e17-489b-8267-2fd7992bc876 - - - - -] Volume driver > LVMVolumeDriver not initialized > 2018-12-19 22:06:00.076 2657 ERROR cinder.volume.manager > [req-b3178448-4e17-489b-8267-2fd7992bc876 - - - - -] Cannot complete RPC > initialization because driver isn't initialized properly.: > DriverNotInitialized: Volume driver not ready. > 2018-12-19 22:06:10.077 2657 ERROR cinder.service > [req-b3178448-4e17-489b-8267-2fd7992bc876 - - - - -] Manager for service > cinder-volume node0@lvm is reporting problems, not sending heartbeat. > Service will appear "down". > 2018-12-19 22:06:20.077 2657 ERROR cinder.service > [req-b3178448-4e17-489b-8267-2fd7992bc876 - - - - -] Manager for service > cinder-volume node0@lvm is reporting problems, not sending heartbeat. > Service will appear "down". > 2018-12-19 22:06:30.078 2657 ERROR cinder.service > [req-b3178448-4e17-489b-8267-2fd7992bc876 - - - - -] Manager for service > cinder-volume node0@lvm is reporting problems, not sending heartbeat. > Service will appear "down". > 2018-12-19 22:06:40.078 2657 ERROR cinder.service > [req-b3178448-4e17-489b-8267-2fd7992bc876 - - - - -] Manager for service > cinder-volume node0@lvm is reporting problems, not sending heartbeat. > Service will appear "down". > 2018-12-19 22:06:50.079 2657 ERROR cinder.service > [req-b3178448-4e17-489b-8267-2fd7992bc876 - - - - -] Manager for service > cinder-volume node0@lvm is reporting problems, not sending heartbeat. > Service will appear "down". > 2018-12-19 22:07:00.079 2657 ERROR cinder.service > [req-b3178448-4e17-489b-8267-2fd7992bc876 - - - - -] Manager for service > cinder-volume node0@lvm is reporting problems, not sending heartbeat. > Service will appear "down". > 2018-12-19 22:07:10.078 2657 WARNING cinder.volume.manager > [req-b3178448-4e17-489b-8267-2fd7992bc876 - - - - -] Update driver status > failed: (config name lvm) is uninitialized. 위의 로그에서 'Manage for service cinder -volume node0@lvm is ...' 이 부분이 계속 반복 되는 부분 입니다. 혹시, 이에 대해서 경험 해 보신 분 있으시면, 조언 부탁 드립니다. 감사합니다.

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