[LU-793] Reconnections should not be refused when there is a request in progress from this client.

• Type: Bug
• Resolution: Fixed
• Priority: Critical
• Fix Version/s: Lustre 2.6.0
• Affects Version/s: Lustre 2.1.0, Lustre 2.2.0, Lustre 2.4.0, Lustre 1.8.6
• Labels: JL
• Severity: 3
• Assignee: Mikhail Pershin
• Reporter: Oleg Drokin

Description

While originally this was a useful workaround, it created a lot of other unintended problems.

This code must be disabled and instead we just should disable handling several duplicate requests at the same time.

Issue Links

• duplicates: LU-7 Reconnect server->client connection
• is related to: LU-18072 Lock cancel resending overwhelms ldlm canceld thread
• is related to: LU-2621 SIngle client timeout hangs MDS -related to LU-793
• is related to: LU-4349 conf-sanity test_47: test failed to respond and timed out
• is related to: LU-4458 Interop 2.5.0<->2.6 failure on test suite recovery-small test_9
• is related to: LU-7 Reconnect server->client connection
• is related to: LU-4359 1.8.9 clients has endless bulk IO timeouts with 2.4.1 servers
• is related to: LU-2429 easy to find bad client
• is related to: LU-4480 cfs_fail_timeout id 214 sleeping for -1000ms
• Trackbacks: Lustre 1.8.x known issues tracker While testing against Lustre b18 branch, we would hit known bugs which were already reported in Lustre Bugzilla https://bugzilla.lustre.org/. In order to move away from relying on Bugzilla, we would create a JIRA