[LU-11634] sanityn/test_77 improvements Created: 07/Nov/18  Updated: 04/Sep/19  Resolved: 19/Feb/19

Status: Resolved
Project: Lustre
Component/s: None
Affects Version/s: None
Fix Version/s: Lustre 2.13.0, Lustre 2.12.3

Type: Bug Priority: Minor
Reporter: Vladimir Saveliev Assignee: Vladimir Saveliev
Resolution: Fixed Votes: 0
Labels: patch

Severity: 3
Rank (Obsolete): 9223372036854775807

 Description   

sshd limits number of simultaneous unauthenticated connections via MaxStartups configuration parameter. By default, 10 connections are allowed.
sanityn/test_77* 's actor nrs_write_read() tries to run up to 32 do_nodes() in parallel, causing sshd to drop some of connections.

== sanityn test 77a: check FIFO NRS policy =========================================================== 22:21:58 (1541024518)
ost.OSS.ost.nrs_policies=fifo
...
fre1336: 1+0 records in
fre1336: 1+0 records out
fre1336: 1048576 bytes (1.0 MB) copied, 0.00722902 s, 145 MB/s
fre1335: ssh_exchange_identification: read: Connection reset by peer

pdsh@fre1335: fre1335: ssh exited with exit code 255
...
fre1336: 1048576 bytes (1.0 MB) copied, 0.00595128 s, 176 MB/s
 sanityn test_77a: @@@@@@ FAIL: dd at 11MB on client failed (2)


 Comments   
Comment by Gerrit Updater [ 07/Nov/18 ]

Vladimir Saveliev (c17830@cray.com) uploaded a new patch: https://review.whamcloud.com/33607
Subject: LU-11634 tests: sanityn/test_77 improvements
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: cef776957cf847534f64c32d320307fa849dfa4e

Comment by Gerrit Updater [ 18/Feb/19 ]

Oleg Drokin (green@whamcloud.com) merged in patch https://review.whamcloud.com/33607/
Subject: LU-11634 tests: sanityn/test_77 improvements
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: 43ac1425ad9e8c5fc1e7deff579a443b5c9c7a58

Comment by Peter Jones [ 19/Feb/19 ]

Landed for 2.13

Comment by Gerrit Updater [ 08/Aug/19 ]

James Nunez (jnunez@whamcloud.com) uploaded a new patch: https://review.whamcloud.com/35735
Subject: LU-11634 tests: sanityn/test_77 improvements
Project: fs/lustre-release
Branch: b2_12
Current Patch Set: 1
Commit: b458709561b58c85111c16b71ebcfbbd95296359

Comment by Gerrit Updater [ 04/Sep/19 ]

Oleg Drokin (green@whamcloud.com) merged in patch https://review.whamcloud.com/35735/
Subject: LU-11634 tests: sanityn/test_77 improvements
Project: fs/lustre-release
Branch: b2_12
Current Patch Set:
Commit: 8843bcb776382c913eb86c5d333dedd6e65bf971

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