[Lustre-discuss] [HPDD-discuss] lustre lnet infiniband config

Tue Sep 30 10:32:47 PDT 2014

I had a similar issue using the Mellanox packages. If i remember correctly
I had to recompile the drivers against the Lustre kernel for  the install.
I believe Mellanox had an article on this but I don't have the link.

Mike

On Tue, Sep 30, 2014 at 8:07 AM, Parinay Kondekar <
parinay.kondekar at seagate.com> wrote:

> IMO you should try out strace to see if anything is noticed.
> "Write failed: Broken pipe" is quite common message and difficult to
> conclude anything with.
>
> Regards
> parinay
>
> On Tue, Sep 30, 2014 at 8:16 PM, aayush agrawal <
> aayush.agrawal at calsoftinc.com> wrote:
>
>>  Hi Parinay,
>>
>> Yes, I see ib0 in output of ifconfig -a.
>> I also tried with options lnet networks=*o2ib0*(ib0) but no luck.
>> While loading lnet I do see error in var/log/messages:
>>
>> kernel: LNet: HW CPU cores: 32, npartitions: 4
>> alg: No test for crc32 (crc32-table)
>> kernel: alg: No test for adler32 (adler32-zlib)
>> kernel: alg: No test for crc32 (crc32-pclmul)
>> kernel: padlock: VIA PadLock Hash Engine not detected.
>> modprobe: FATAL: Error inserting padlock_sha
>> (/lib/modules/2.6.32_358/kernel/drivers/crypto/padlock-sha.ko): No such
>> device
>>
>> But as per below link this should not be a problem?
>> https://jira.hpdd.intel.com/browse/LU-1599
>>
>> modprobe lnet completes successfully and I see "Write failed: Broken
>> pipe" after running "lctl network up" and after this session gets logout
>> from the server.
>>
>> Thanks,
>> Aayush.
>>
>>
>> On 9/30/2014 7:21 PM, Parinay Kondekar wrote:
>>
>>  - what is the output of 'ifconfig -a' , do you see ib0  there ?
>> mentioning 'options lnet networks=*o2ib0*(ib0)' should be enough.
>>  - anything in syslog ?
>>
>>  HTH
>>
>> On Tue, Sep 30, 2014 at 6:03 PM, aayush agrawal <
>> aayush.agrawal at calsoftinc.com> wrote:
>>
>>>  Hi,
>>>
>>> I am trying to build lustre 2.5.0 against
>>> MLNX_OFED_LINUX-2.2-1.0.1-rhel6.4-x86_64 on CentOS6.4 with kernel version
>>> 2.6.32-358.
>>> But I am not able to set lnet config settings properly. I used settings
>>> suggested in lustre 2.x manual. But then not able to get network up using
>>> lctl.
>>>
>>> Details:
>>>
>>> I have two server machines, one for mgs+mdt and second for oss and one
>>> client machine. I want to setup Infiniband on all these machines.
>>> I could run below steps successfully for all the three machines:
>>> 1. Run script mlnxofedinstall
>>>     # ./mlnxofedinstall  -vvv --add-kernel-support --without-32bit
>>> --without-fw-update --hpc
>>> 2. Restart openibd service
>>>     #  /etc/init.d/openibd restart
>>> 3. configure ib0 interface.
>>> 4. configure lustre with o2ib
>>>     # ./configure --with-linux=Path_to_linux-2.6.32-358.18.1.el6
>>> --with-o2ib=/usr/src/ofa_kernel/default/
>>>
>>> 5. make lustre rpms:
>>>     # make rpms
>>> This gave me below compilation error
>>> I looked online for this error and found bug registered on the same:
>>> https://jira.hpdd.intel.com/browse/LU-4266
>>> <https://urldefense.proofpoint.com/v2/url?u=https-3A__jira.hpdd.intel.com_browse_LU-2D4266&d=AAMCAw&c=IGDlg0lD0b-nebmJJ0Kp8A&r=c-1Cg_VH2lcYI_JXS3gypPA6xWmYsO2Md6-EoqjeIzk&m=q_uNuYFdGrDiFyB8x0KjRuPV4TbYGJf20PKQKambrfE&s=Gu0enSN8vm3fdyqEtx0cJjPMhWf9o_TCXmJhHez9HKE&e=>
>>> Below patch from above link solved the problem and hence I could build
>>> lustre rpms:
>>> http://review.whamcloud.com/#/c/8451/1
>>> <https://urldefense.proofpoint.com/v2/url?u=http-3A__review.whamcloud.com_-23_c_8451_1&d=AAMCAw&c=IGDlg0lD0b-nebmJJ0Kp8A&r=c-1Cg_VH2lcYI_JXS3gypPA6xWmYsO2Md6-EoqjeIzk&m=q_uNuYFdGrDiFyB8x0KjRuPV4TbYGJf20PKQKambrfE&s=BqWJdkdWSRVMHWQkLWAhYaV0yfRwJZDUb61TfAgRss0&e=>
>>>
>>> Now first I want to do the Infiniband setup for mgs and mdt on single
>>> machine which also has Ethernet IP. Then I want to format and mount mgs and
>>> mdt.
>>> So I installed above created lustre rpms and then added below line in
>>> /etc/modprobe.d/lustre.conf
>>> options lnet networks=o2ib(ib0)
>>>
>>> Then I rebooted the machine to remove all lustre related modules
>>> including lnet and then ran modprobe lnet command to add above
>>> parameters and the ran lctl network up which is giving me below error:
>>> LNET configure error 100: Network is down
>>>
>>> I looked online and found below discussion on same error:
>>> http://lists.lustre.org/pipermail/lustre-discuss/2010-June/013510.html
>>> <https://urldefense.proofpoint.com/v2/url?u=http-3A__lists.lustre.org_pipermail_lustre-2Ddiscuss_2010-2DJune_013510.html&d=AAMCAw&c=IGDlg0lD0b-nebmJJ0Kp8A&r=c-1Cg_VH2lcYI_JXS3gypPA6xWmYsO2Md6-EoqjeIzk&m=q_uNuYFdGrDiFyB8x0KjRuPV4TbYGJf20PKQKambrfE&s=aCgXfqCUyJ7IXVRJHjqpk2HCS1_dsKDuaKJrDPmWp4I&e=>
>>>
>>> As per suggestion in above mail I tried with below line in
>>> /etc/modprobe.d/lustre.conf.  In below command for IB_IP, I have given
>>> infiniband IP.
>>> options lnet *networks=o2ib(ib0)* routes="tcp0 IB_IP at o2ib"
>>> This command hangs for around 2 to 3 minutes and then gives error: Write
>>> failed: Broken pipe. Same is the case for "options lnet
>>> *networks=o2ib(ib0)*"
>>> But if I set: options lnet *networks=tcp0(eth0),o2ib(ib0)* routes="tcp1
>>> IB_IP at o2ib" then it gives LNET configure error 100: Network is down.
>>>
>>> It seems that for network=o2ib(ibo) I am getting error Write failed:
>>> Broken pipe.
>>> Am I missing anything while following above steps? Or how do I resolve
>>> above error?
>>>
>>> Thanks,
>>> Aayush.
>>>
>>> <html>
>>> _______________________________________________
>>> HPDD-discuss mailing list
>>> HPDD-discuss at lists.01.org
>>>
>>> https://urldefense.proofpoint.com/v2/url?u=https-3A__lists.01.org_mailman_listinfo_hpdd-2Ddiscuss&d=AAICAg&c=IGDlg0lD0b-nebmJJ0Kp8A&r=c-1Cg_VH2lcYI_JXS3gypPA6xWmYsO2Md6-EoqjeIzk&m=q_uNuYFdGrDiFyB8x0KjRuPV4TbYGJf20PKQKambrfE&s=0hW3r7x0NhgbZ7zgaZKr9K_fk7_E8bs0f-GAlH89rgM&e=
>>>
>>>
>>
>>
>
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