From: Oleg Drokin <oleg.drokin@intel.com>
To: NeilBrown <neilb@suse.com>
Cc: "devel@driverdev.osuosl.org SUBSYSTEM"
<devel@driverdev.osuosl.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Lustre Development List <lustre-devel@lists.lustre.org>
Subject: Re: [lustre-devel] [PATCH 41/80] staging: lustre: lmv: separate master object with master stripe
Date: Sun, 11 Feb 2018 19:06:30 -0500 [thread overview]
Message-ID: <3E2C6545-B1F2-46AD-8539-A3F65DBE5EF9@intel.com> (raw)
In-Reply-To: <87eflrrsr7.fsf@notabene.neil.brown.name>
> On Feb 11, 2018, at 6:50 PM, NeilBrown <neilb@suse.com> wrote:
>
> Maybe - as you suggest in another email - it is due to some
> client/server incompatibility. I guess it is unavoidable with an fs
> like lustre to have incompatible protocol changes. Is there any
> mechanism for detecting the version of other peers in the cluster and
> refusing to run if versions are incompatible?
Yes, client and server exchange “feature bits” at connect time
and only use the subset of features that both can understand.
Bye,
Oleg
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next prev parent reply other threads:[~2018-02-12 0:06 UTC|newest]
Thread overview: 94+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-16 20:18 [PATCH 00/80] staging: lustre: majority of missing fixes for 2.6 release James Simmons
2016-08-16 20:18 ` [PATCH 01/80] staging: lustre: llite: add md_op_data parameter to ll_get_dir_page James Simmons
2016-08-16 20:18 ` [PATCH 02/80] staging: lustre: llite: remove comment from ll_dir_read James Simmons
2016-08-16 20:18 ` [PATCH 03/80] staging: lustre: llite: style cleanup for llite_internal.h James Simmons
2016-08-16 20:18 ` [PATCH 04/80] staging: lustre: llite: pass inode to ll_release_page James Simmons
2016-08-16 20:18 ` [PATCH 05/80] staging: lustre: llite: change remove parameter to bool James Simmons
2016-08-16 20:18 ` [PATCH 06/80] staging: lustre: mdc: don't take rpc lock for readdir case James Simmons
2016-08-16 20:18 ` [PATCH 07/80] staging: lustre: lmv: remove unused lmv_get_mea function James Simmons
2016-08-16 20:18 ` [PATCH 08/80] staging: lustre: lmv: remove duplicate MAX_HASH_* James Simmons
2016-08-16 20:18 ` [PATCH 09/80] staging: lustre: lmv: change handling of lmv striping information James Simmons
2016-08-16 20:18 ` [PATCH 10/80] staging: lustre: lmv: remove lmv_get_easize James Simmons
2016-08-16 20:18 ` [PATCH 11/80] staging: lustre: lmv: replace obd_free_memmd with lmv_free_memmd James Simmons
2016-08-16 20:18 ` [PATCH 12/80] staging: lustre: create striped directory James Simmons
2016-08-16 20:18 ` [PATCH 13/80] staging: lustre: llite: fix "getdirstripe" to show stripe info James Simmons
2016-08-16 20:18 ` [PATCH 14/80] staging: lustre: delete striped directory James Simmons
2016-08-16 20:18 ` [PATCH 15/80] staging: lustre: obdclass: fix lmd_parse() to handle comma-separated NIDs James Simmons
2016-08-16 20:18 ` [PATCH 16/80] staging: lustre: obdclass: bug fixes for lu_device_type handling James Simmons
2016-08-16 20:18 ` [PATCH 17/80] staging: lustre: add ability to migrate inodes James Simmons
2016-08-16 20:18 ` [PATCH 18/80] staging: lustre: lmv: fix issue found by Klocwork Insight tool James Simmons
2016-08-16 20:18 ` [PATCH 19/80] staging: lustre: libcfs: Only dump log once per sec. to avoid EEXIST James Simmons
2016-08-16 20:18 ` [PATCH 20/80] staging: lustre: llite: enable clients to inject error for lfsck James Simmons
2016-08-16 20:18 ` [PATCH 21/80] staging: lustre: osc: allow to call brw_commit() multiple times James Simmons
2016-08-16 20:18 ` [PATCH 22/80] staging: lustre: llite: a few fixes for migration James Simmons
2016-08-16 20:18 ` [PATCH 23/80] staging: lustre: mdc: fixup MDS_SWAP_LAYOUTS ELC handling James Simmons
2016-08-16 20:18 ` [PATCH 24/80] staging: lustre: don't need to const __u64 parameters for lustre_idl.h James Simmons
2016-08-16 20:18 ` [PATCH 25/80] staging: lustre: const correct FID/OSTID/... helpers James Simmons
2016-08-16 20:18 ` [PATCH 26/80] staging: lustre: use bool for several function in lustre_idl.h/lustre_fid.h James Simmons
2016-08-16 20:18 ` [PATCH 27/80] staging: lustre: simplify inline functions in lustre_fid.h James Simmons
2016-08-16 20:18 ` [PATCH 28/80] staging: lustre: lmv: access lum_stripe_offset as little endian James Simmons
2016-08-16 20:18 ` [PATCH 29/80] staging: lustre: lmv: lookup remote migrating object in LMV James Simmons
2016-08-16 20:18 ` [PATCH 30/80] staging: lustre: lmv: Ensure lmv_intent_lookup cleans up reqp James Simmons
2016-08-16 20:18 ` [PATCH 31/80] staging: lustre: llite: avoid a deadlock in page write James Simmons
2016-08-16 20:18 ` [PATCH 32/80] staging: lustre: lov: handle the case of stripe size is not power 2 James Simmons
2016-08-16 20:18 ` [PATCH 33/80] staging: lustre: lmv: cleanup req in lmv_getattr_name() James Simmons
2016-08-16 20:18 ` [PATCH 34/80] staging: lustre: lmv: rename request to preq " James Simmons
2016-08-16 20:18 ` [PATCH 35/80] staging: lustre: obdclass: unified flow control interfaces James Simmons
2016-08-16 20:18 ` [PATCH 36/80] staging: lustre: reorder LOV_MAGIC_* definition James Simmons
2016-08-16 20:18 ` [PATCH 37/80] staging: lustre: ldlm: flock completion fixes James Simmons
2016-08-16 20:18 ` [PATCH 38/80] staging: lustre: move ioctls to lustre_ioctl.h James Simmons
2016-08-16 20:18 ` [PATCH 39/80] staging: lustre: llite: add error handler in inode prepare phase James Simmons
2016-08-16 20:18 ` [PATCH 40/80] staging: lustre: ptlrpc: Early replies need to honor at_max James Simmons
2016-08-16 20:18 ` [PATCH 41/80] staging: lustre: lmv: separate master object with master stripe James Simmons
2018-02-09 1:39 ` NeilBrown
2018-02-09 2:01 ` Oleg Drokin
2018-02-09 3:10 ` NeilBrown
2018-02-09 3:50 ` [lustre-devel] " Oleg Drokin
2018-02-10 20:57 ` James Simmons
2018-02-11 23:50 ` NeilBrown
2018-02-12 0:06 ` Oleg Drokin [this message]
2018-02-11 23:44 ` NeilBrown
2018-02-12 0:52 ` Oleg Drokin
2018-02-10 22:14 ` James Simmons
2018-02-12 7:41 ` Dan Carpenter
2016-08-16 20:18 ` [PATCH 42/80] staging: lustre: llite: validate names James Simmons
2016-08-16 20:18 ` [PATCH 43/80] staging: lustre: llite: fix inconsistencies of root squash feature James Simmons
2016-08-16 20:18 ` [PATCH 44/80] staging: lustre: Remove static declaration in anonymous union James Simmons
2016-08-16 20:18 ` [PATCH 45/80] staging: lustre: llite: Fix the deadlock in balance_dirty_pages() James Simmons
2016-08-16 20:18 ` [PATCH 46/80] staging: lustre: llite: Change readdir BRW metrics James Simmons
2016-08-16 20:19 ` [PATCH 47/80] staging: lustre: uapi: reduce scope of lustre_idl.h James Simmons
2016-08-16 20:19 ` [PATCH 48/80] staging: lustre: llite: a few fixes about readdir of striped dir James Simmons
2016-08-16 20:19 ` [PATCH 49/80] staging: lustre: lmv: validate lock with correct stripe FID James Simmons
2016-08-16 20:19 ` [PATCH 50/80] staging: lustre: lov: new pattern flag for partially repaired file James Simmons
2016-08-16 20:19 ` [PATCH 51/80] staging: lustre: lmv: Match MDT where the FID locates first James Simmons
2016-08-16 20:19 ` [PATCH 52/80] staging: lustre: llite: use the correct mode for striped directory James Simmons
2016-08-16 20:19 ` [PATCH 53/80] staging: lustre: obd: rename lsr_padding to lsr_valid James Simmons
2016-08-16 20:19 ` [PATCH 54/80] staging: lustre: llite: set dir LOV xattr length variable James Simmons
2016-08-16 20:19 ` [PATCH 55/80] staging: lustre: mdt: add mbo_ prefix to members of struct mdt_body James Simmons
2016-08-16 20:19 ` [PATCH 56/80] staging: lustre: clio: Reduce memory overhead of per-page allocation James Simmons
2016-08-16 20:19 ` [PATCH 57/80] staging: lustre: osc: revise unstable pages accounting James Simmons
2016-10-16 15:14 ` Greg Kroah-Hartman
2016-10-16 17:16 ` Oleg Drokin
2016-08-16 20:19 ` [PATCH 58/80] staging: lustre: mdc: always use D_INFO for debug info when mdc_put_rpc_lock fails James Simmons
2016-08-16 20:19 ` [PATCH 59/80] staging: lustre: fld: add fld description documentation James Simmons
2016-08-16 20:19 ` [PATCH 60/80] staging: lustre: ldlm: improve ldlm_lock_create() return value James Simmons
2016-08-16 20:19 ` [PATCH 61/80] staging: lustre: obdclass: compile issues with variable not being initialized James Simmons
2016-08-16 20:19 ` [PATCH 62/80] staging: lustre: obd: limit lu_object cache James Simmons
2016-08-16 20:19 ` [PATCH 63/80] staging: lustre: fid: do open-by-fid by default James Simmons
2016-08-16 20:19 ` [PATCH 64/80] staging: lustre: ptlrpc: add OBD_CONNECT_UNLINK_CLOSE flag James Simmons
2016-08-16 20:19 ` [PATCH 65/80] staging: lustre: llog: keep llog ctxt indices constant James Simmons
2016-08-16 20:19 ` [PATCH 66/80] staging: lustre: lmv: try all stripes for unknown hash functions James Simmons
2016-08-16 20:19 ` [PATCH 67/80] staging: lustre: ptlrpc: request gets stuck in UNREGISTERING phase James Simmons
2016-08-16 20:19 ` [PATCH 68/80] staging: lustre: lmv: build master LMV EA dynamically build via readdir James Simmons
2016-08-16 20:19 ` [PATCH 69/80] staging: lustre: osc: Automatically increase the max_dirty_mb James Simmons
2016-08-16 20:19 ` [PATCH 70/80] staging: lustre: include: fix one off errors in lustre_id.h James Simmons
2016-08-16 20:19 ` [PATCH 71/80] staging: lustre: llite: remove assert for acl refcount James Simmons
2016-08-16 20:19 ` [PATCH 72/80] staging: lustre: obd: validate open handle cookies James Simmons
2016-08-16 20:19 ` [PATCH 73/80] staging: lustre: lmv: build error with gcc 4.7.0 20110509 James Simmons
2016-08-16 20:19 ` [PATCH 74/80] staging: lustre: obd: implement md_read_page James Simmons
2016-08-16 20:19 ` [PATCH 75/80] staging: lustre: llite: set op_max_pages James Simmons
2016-08-16 20:19 ` [PATCH 76/80] staging: lustre: lnet: Do not drop message when shutting down LNet James Simmons
2016-08-16 20:19 ` [PATCH 77/80] staging: lustre: lnet: Correct position of lnet_ni_decref() James Simmons
2016-08-16 20:19 ` [PATCH 78/80] staging: lustre: lnet: make connection more stable with packet loss James Simmons
2016-08-16 20:19 ` [PATCH 79/80] staging: lustre: lnet: lock improvement for ko2iblnd James Simmons
2016-08-16 20:19 ` [PATCH 80/80] staging: lustre: lnet: Stop Infinite CON RACE Condition James Simmons
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