From: daos@daos.groups.io <daos@daos.groups.io> On Behalf Of Nabarro, Tom
Sent: Thursday, July 30, 2020 12:11
To: daos@daos.groups.io
Subject: Re: [daos] issues with NVMe drives from RPM installation

 

Sounds like maybe metadata is out of sync, can you try removing /mnt/daos0/*, starting the server and then (on a separate tty) reformatting with "dmg storage format --reformat"?

 

 

Thanks Tom, that led me to this:

07/30-08:21:08.63 elfs13o01 DAOS[74504/74524] bio  INFO src/bio/bio_xstream.c:1049 bio_xsctxt_alloc() Initialize NVMe context, tgt_id:0, init_thread:(nil)

07/30-08:21:10.77 elfs13o01 DAOS[74504/74524] bio  ERR  src/bio/bio_xstream.c:877 init_blobstore_ctxt() Device list & device mapping is inconsistent

07/30-08:21:14.13 elfs13o01 DAOS[74504/74524] server ERR  src/iosrv/srv.c:452 dss_srv_handler() failed to init spdk context for xstream(2) rc:-1005

 

When I check for consistency, I see :

 

[root@elfs13o01 tmp]# daos_server storage scan

Scanning locally-attached storage...

ERROR: /usr/bin/daos_admin EAL: No free hugepages reported in hugepages-1048576kB

NVMe controllers and namespaces:

                PCI:0000:5e:00.0 Model:INTEL SSDPE2KX040T8  FW:VDV10131 Socket:0 Capacity:4.0 TB

                PCI:0000:5f:00.0 Model:INTEL SSDPE2KX040T8  FW:VDV10131 Socket:0 Capacity:4.0 TB

                PCI:0000:d8:00.0 Model:INTEL SSDPE2KX040T8  FW:VDV10131 Socket:1 Capacity:4.0 TB

                PCI:0000:d9:00.0 Model:INTEL SSDPE2KX040T8  FW:VDV10131 Socket:1 Capacity:4.0 TB

SCM Namespaces:

                Device:pmem0 Socket:0 Capacity:266 GB

                Device:pmem1 Socket:1 Capacity:266 GB

 

And the first line of the NVMe controllers listed is the drive I have in the configuration file (from below)

 

  bdev_class: nvme
  bdev_list: ["0000:5e:00.0"]

 

Is there another file somewhere that I need to set up?  I saw some documentation of ‘daos_nvme.conf’ which is automatically generated.  I added the second NVMe device on socket 0 to the configuration to test to see if that would change anything, but I have the same results.

 

 

 

Hello Richard

 

"ERROR: DAOS I/O Server exited with error: /usr/bin/daos_io_server (instance 0) exited: exit status 1”
indicates that there might be some useful information in the io_server log for the first instance, the default location as set in the server config file (log_file) is /tmp/server0.log. If nothing useful in there try increasing the log_mask to DEBUG.

Regards,

Tom Nabarro – HPC

M: +44 (0)7786 260986

Skype: tom.nabarro

 

From: daos@daos.groups.io <daos@daos.groups.io> On Behalf Of richard.dahringer@...
Sent: Thursday, July 30, 2020 3:27 PM
To: daos@daos.groups.io
Subject: [daos] issues with NVMe drives from RPM installation

 

Hi all -
I'm trying to set up a proof of concept daos cluster, and it is proving to be tricky. The systems have 4 SCM 128G DIMMs, and 4 U.2 NVMe drives installed. I have installed all the RPMs from registrationcenter.intel.com, and have been able to set up the SCM devices, 'dmg -i' commands all seem to work.  When I add nvme drives to the configuration though, daos_server does not start - it does start when the nvme drives are not there. 

My daos_server.conf file:

name: daos_server
access_points: ['elfs13o01']
# port: 10001
provider: ofi+psm2
nr_hugepages: 4096
control_log_file: /tmp/daos_control.log
transport_config:
   allow_insecure: true

servers:
-
  targets: 1
  first_core: 0
  nr_xs_helpers: 0
  fabric_iface: hib0
  fabric_iface_port: 31416
  log_file: /tmp/daos_server.log

 

  env_vars:
  - DAOS_MD_CAP=1024
  - CRT_CTX_SHARE_ADDR=0
  - CRT_TIMEOUT=30
  - FI_SOCKETS_MAX_CONN_RETRY=1
  - FI_SOCKETS_CONN_TIMEOUT=2000

 

  # Storage definitions

 

  # When scm_class is set to ram, tmpfs will be used to emulate SCM.

  # The size of ram is specified by scm_size in GB units.

  scm_mount: /mnt/daos0  # map to -s /mnt/daos
  scm_class: dcpm
  scm_list: [/dev/pmem0]

  bdev_class: nvme
  bdev_list: ["0000:5e:00.0"]

The startup error:

[root@elfs13o01 ~]# daos_server -o daos_local.yml start
daos_server logging to file /tmp/daos_control.log
ERROR: /usr/bin/daos_admin EAL: No free hugepages reported in hugepages-1048576kB
DAOS Control Server (pid 73257) listening on 0.0.0.0:10001
Waiting for DAOS I/O Server instance storage to be ready...
SCM @ /mnt/daos0: 262 GB Total/247 GB Avail
Starting I/O server instance 0: /usr/bin/daos_io_server
daos_io_server:0 Using legacy core allocation algorithm
daos_io_server:0 Starting SPDK v19.04.1 / DPDK 19.02.0 initialization...
[ DPDK EAL parameters: daos -c 0x1 --pci-whitelist=0000:5e:00.0 --log-level=lib.eal:6 --base-virtaddr=0x200000000000 --match-allocations --file-prefix=spdk73258 --proc-type=auto ]
ERROR: daos_io_server:0 EAL: No free hugepages reported in hugepages-1048576kB
ERROR: /var/run/daos_server/daos_server.sock: failed to accept connection: accept unixpacket /var/run/daos_server/daos_server.sock: use of closed network connection
ERROR: DAOS I/O Server exited with error: /usr/bin/daos_io_server (instance 0) exited: exit status 1

Can someone provide some pointers to what is going on? 

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