Ayal Baron has posted comments on this change.
Change subject: BZ#844180: Change scsi scan to asynchronous
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Patch Set 13: (1 inline comment)
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File vdsm/storage/iscsi.py
Line 357: for hba in glob.glob(SCAN_PATTERN):
Line 358: cmd = ['echo', '- - -', '|', '/bin/dd of=' + hba]
Line 359: processes.append((hba, misc.execCmd(cmd, sudo=False,
sync=False)))
Line 360: if (minTimeout > maxTimeout or minTimeout < 0):
Line 361: minTimeout = 2
returning from echoing '- - -' to the hba does not mean that the system has
finished updating all the new devices in device mapper.
It is perhaps possible to get this info (Eduardo is checking) but a lot more
complex.
In the meantime to minimize races between dm being update and vdsm looking for
available devices we've defined a minimal time to wait after a scsi rescan.
But indeed this should appear in a commit message.
Line 362: maxTimeout = 30
Line 363: log.warning("One of the following configuration arguments has
an ",
Line 364: "illegal value: scsi_rescan_minimal_timeout or ",
Line 365: "scsi_rescan_maximal_timeout. Set to %s and %s
seconds ",
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Gerrit-MessageType: comment
Gerrit-Change-Id: I7665ebaed716f75af4d03ec1b6a9ff9ff5d84853
Gerrit-PatchSet: 13
Gerrit-Project: vdsm
Gerrit-Branch: master
Gerrit-Owner: Yeela Kaplan <[email protected]>
Gerrit-Reviewer: Ayal Baron <[email protected]>
Gerrit-Reviewer: Dan Kenigsberg <[email protected]>
Gerrit-Reviewer: Daniel Erez <[email protected]>
Gerrit-Reviewer: Daniel Paikov <[email protected]>
Gerrit-Reviewer: Eduardo <[email protected]>
Gerrit-Reviewer: Federico Simoncelli <[email protected]>
Gerrit-Reviewer: Haim Ateya <[email protected]>
Gerrit-Reviewer: Igor Lvovsky <[email protected]>
Gerrit-Reviewer: Yeela Kaplan <[email protected]>
Gerrit-Reviewer: oVirt Jenkins CI Server
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