revlog: automatically read from opened file handles
The revlog reading code commonly opens a new file handle for
reading on demand. There is support for passing a file handle
to revlog.revision(). But it is marked as an internal argument.
When revlogs are written, we write() data as it is available. But
we don't flush() data until all revisions are written.
Putting these two traits together, it is possible for an in-process
revlog reader during active writes to trigger the opening of a new
file handle on a file with unflushed writes. The reader won't have
access to all "available" revlog data (as it hasn't been flushed).
And with the introduction of the previous patch, this can lead to
the revlog raising an error due to a partial read.
I witnessed this behavior when applying changegroup data (via
`hg pull`) before issue6006 was fixed via different means. Having
this and the previous patch in play would have helped cause errors
earlier rather than manifesting as hash verification failures.
While this has been a long-standing issue, I believe the relatively
new delta computation code has tickled it into being more common.
This is because the new delta computation code will compute deltas
in more scenarios. This can lead to revlog reading. While the delta
computation code is probably supposed to reuse file handles, it
appears it isn't doing so in all circumstances.
But the issue runs deeper than that. Theoretically, any code can
access revision data during revlog writes. It appears we were just
getting lucky that it wasn't. (The "add revision callback" passed to
addgroup() provides an avenue to do this.)
If I changed the revlog's behavior to not cache the full revision
text or to clear caches after revision insertion during addgroup(),
I was able to produce crashes 100% of the time when writing changelog
revisions. This is because changelog's add revision callback attempts
to resolve the revision data to access the changed files list. And
without the revision's fulltext being cached, we performed a revlog
read, which required opening a new file handle. This attempted to read
unflushed data, leading to a partial read and a crash.
This commit teaches the revlog to store the file handles used for
writing multiple revisions during addgroup(). It also teaches the
code for resolving a file handle when reading to use these handles,
if available. This ensures that *any* reads (regardless of their
source) use the active writing file handles, if available. These
file handles have access to the unflushed data because they wrote it.
This allows reads to complete without issue.
Differential Revision: https://phab.mercurial-scm.org/D5267
#require serve no-reposimplestore no-chg
$ cat >> $HGRCPATH <<EOF
> [extensions]
> lfs=
> [lfs]
> track=all()
> [web]
> push_ssl = False
> allow-push = *
> EOF
Serving LFS files can experimentally be turned off. The long term solution is
to support the 'verify' action in both client and server, so that the server can
tell the client to store files elsewhere.
$ hg init server
$ hg --config "lfs.usercache=$TESTTMP/servercache" \
> --config experimental.lfs.serve=False -R server serve -d \
> -p $HGPORT --pid-file=hg.pid -A $TESTTMP/access.log -E $TESTTMP/errors.log
$ cat hg.pid >> $DAEMON_PIDS
Uploads fail...
$ hg init client
$ echo 'this-is-an-lfs-file' > client/lfs.bin
$ hg -R client ci -Am 'initial commit'
adding lfs.bin
$ hg -R client push http://localhost:$HGPORT
pushing to http://localhost:$HGPORT/
searching for changes
abort: LFS HTTP error: HTTP Error 400: no such method: .git (action=upload)!
[255]
... so do a local push to make the data available. Remove the blob from the
default cache, so it attempts to download.
$ hg --config "lfs.usercache=$TESTTMP/servercache" \
> --config "lfs.url=null://" \
> -R client push -q server
$ mv `hg config lfs.usercache` $TESTTMP/servercache
Downloads fail...
$ hg clone http://localhost:$HGPORT httpclone
(remote is using large file support (lfs); lfs will be enabled for this repository)
requesting all changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files
new changesets 525251863cad
updating to branch default
abort: LFS HTTP error: HTTP Error 400: no such method: .git (action=download)!
[255]
$ "$PYTHON" $RUNTESTDIR/killdaemons.py $DAEMON_PIDS
$ cat $TESTTMP/access.log $TESTTMP/errors.log
$LOCALIP - - [$LOGDATE$] "GET /?cmd=capabilities HTTP/1.1" 200 - (glob)
$LOCALIP - - [$LOGDATE$] "GET /?cmd=batch HTTP/1.1" 200 - x-hgarg-1:cmds=heads+%3Bknown+nodes%3D525251863cad618e55d483555f3d00a2ca99597e x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull (glob)
$LOCALIP - - [$LOGDATE$] "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=phases x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull (glob)
$LOCALIP - - [$LOGDATE$] "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=bookmarks x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull (glob)
$LOCALIP - - [$LOGDATE$] "POST /.git/info/lfs/objects/batch HTTP/1.1" 400 - (glob)
$LOCALIP - - [$LOGDATE$] "GET /?cmd=capabilities HTTP/1.1" 200 - (glob)
$LOCALIP - - [$LOGDATE$] "GET /?cmd=batch HTTP/1.1" 200 - x-hgarg-1:cmds=heads+%3Bknown+nodes%3D x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull (glob)
$LOCALIP - - [$LOGDATE$] "GET /?cmd=getbundle HTTP/1.1" 200 - x-hgarg-1:bookmarks=1&bundlecaps=HG20%2Cbundle2%3DHG20%250Abookmarks%250Achangegroup%253D01%252C02%252C03%250Adigests%253Dmd5%252Csha1%252Csha512%250Aerror%253Dabort%252Cunsupportedcontent%252Cpushraced%252Cpushkey%250Ahgtagsfnodes%250Alistkeys%250Aphases%253Dheads%250Apushkey%250Aremote-changegroup%253Dhttp%252Chttps%250Arev-branch-cache%250Astream%253Dv2&cg=1&common=0000000000000000000000000000000000000000&heads=525251863cad618e55d483555f3d00a2ca99597e&listkeys=bookmarks&phases=1 x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull (glob)
$LOCALIP - - [$LOGDATE$] "POST /.git/info/lfs/objects/batch HTTP/1.1" 400 - (glob)
Blob URIs are correct when --prefix is used
$ rm -f $TESTTMP/access.log $TESTTMP/errors.log
$ hg --config "lfs.usercache=$TESTTMP/servercache" -R server serve -d \
> -p $HGPORT --pid-file=hg.pid --prefix=subdir/mount/point \
> -A $TESTTMP/access.log -E $TESTTMP/errors.log
$ cat hg.pid >> $DAEMON_PIDS
$ hg clone --debug http://localhost:$HGPORT/subdir/mount/point cloned2
using http://localhost:$HGPORT/subdir/mount/point
sending capabilities command
(remote is using large file support (lfs); lfs will be enabled for this repository)
query 1; heads
sending batch command
requesting all changes
sending getbundle command
bundle2-input-bundle: with-transaction
bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported
adding changesets
add changeset 525251863cad
adding manifests
adding file changes
adding lfs.bin revisions
added 1 changesets with 1 changes to 1 files
bundle2-input-part: total payload size 648
bundle2-input-part: "listkeys" (params: 1 mandatory) supported
bundle2-input-part: "phase-heads" supported
bundle2-input-part: total payload size 24
bundle2-input-part: "cache:rev-branch-cache" (advisory) supported
bundle2-input-part: total payload size 39
bundle2-input-bundle: 3 parts total
checking for updated bookmarks
updating the branch cache
new changesets 525251863cad
updating to branch default
resolving manifests
branchmerge: False, force: False, partial: False
ancestor: 000000000000, local: 000000000000+, remote: 525251863cad
lfs: assuming remote store: http://localhost:$HGPORT/subdir/mount/point/.git/info/lfs
Status: 200
Content-Length: 371
Content-Type: application/vnd.git-lfs+json
Date: $HTTP_DATE$
Server: testing stub value
{
"objects": [
{
"actions": {
"download": {
"expires_at": "$ISO_8601_DATE_TIME$"
"header": {
"Accept": "application/vnd.git-lfs"
}
"href": "http://localhost:$HGPORT/subdir/mount/point/.hg/lfs/objects/f03217a32529a28a42d03b1244fe09b6e0f9fd06d7b966d4d50567be2abe6c0e"
}
}
"oid": "f03217a32529a28a42d03b1244fe09b6e0f9fd06d7b966d4d50567be2abe6c0e"
"size": 20
}
]
"transfer": "basic"
}
lfs: downloading f03217a32529a28a42d03b1244fe09b6e0f9fd06d7b966d4d50567be2abe6c0e (20 bytes)
Status: 200
Content-Length: 20
Content-Type: application/octet-stream
Date: $HTTP_DATE$
Server: testing stub value
lfs: adding f03217a32529a28a42d03b1244fe09b6e0f9fd06d7b966d4d50567be2abe6c0e to the usercache
lfs: processed: f03217a32529a28a42d03b1244fe09b6e0f9fd06d7b966d4d50567be2abe6c0e
lfs: downloaded 1 files (20 bytes)
lfs.bin: remote created -> g
getting lfs.bin
lfs: found f03217a32529a28a42d03b1244fe09b6e0f9fd06d7b966d4d50567be2abe6c0e in the local lfs store
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
(sent 3 HTTP requests and * bytes; received * bytes in responses) (glob)
$ "$PYTHON" $RUNTESTDIR/killdaemons.py $DAEMON_PIDS
$ cat $TESTTMP/access.log $TESTTMP/errors.log
$LOCALIP - - [$LOGDATE$] "GET /subdir/mount/point?cmd=capabilities HTTP/1.1" 200 - (glob)
$LOCALIP - - [$LOGDATE$] "GET /subdir/mount/point?cmd=batch HTTP/1.1" 200 - x-hgarg-1:cmds=heads+%3Bknown+nodes%3D x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull (glob)
$LOCALIP - - [$LOGDATE$] "GET /subdir/mount/point?cmd=getbundle HTTP/1.1" 200 - x-hgarg-1:bookmarks=1&bundlecaps=HG20%2Cbundle2%3DHG20%250Abookmarks%250Achangegroup%253D01%252C02%252C03%250Adigests%253Dmd5%252Csha1%252Csha512%250Aerror%253Dabort%252Cunsupportedcontent%252Cpushraced%252Cpushkey%250Ahgtagsfnodes%250Alistkeys%250Aphases%253Dheads%250Apushkey%250Aremote-changegroup%253Dhttp%252Chttps%250Arev-branch-cache%250Astream%253Dv2&cg=1&common=0000000000000000000000000000000000000000&heads=525251863cad618e55d483555f3d00a2ca99597e&listkeys=bookmarks&phases=1 x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull (glob)
$LOCALIP - - [$LOGDATE$] "POST /subdir/mount/point/.git/info/lfs/objects/batch HTTP/1.1" 200 - (glob)
$LOCALIP - - [$LOGDATE$] "GET /subdir/mount/point/.hg/lfs/objects/f03217a32529a28a42d03b1244fe09b6e0f9fd06d7b966d4d50567be2abe6c0e HTTP/1.1" 200 - (glob)
Blobs that already exist in the usercache are linked into the repo store, even
though the client doesn't send the blob.
$ hg init server2
$ hg --config "lfs.usercache=$TESTTMP/servercache" -R server2 serve -d \
> -p $HGPORT --pid-file=hg.pid \
> -A $TESTTMP/access.log -E $TESTTMP/errors.log
$ cat hg.pid >> $DAEMON_PIDS
$ hg --config "lfs.usercache=$TESTTMP/servercache" -R cloned2 --debug \
> push http://localhost:$HGPORT | grep '^[{} ]'
{
"objects": [
{
"oid": "f03217a32529a28a42d03b1244fe09b6e0f9fd06d7b966d4d50567be2abe6c0e"
"size": 20
}
]
"transfer": "basic"
}
$ find server2/.hg/store/lfs/objects | sort
server2/.hg/store/lfs/objects
server2/.hg/store/lfs/objects/f0
server2/.hg/store/lfs/objects/f0/3217a32529a28a42d03b1244fe09b6e0f9fd06d7b966d4d50567be2abe6c0e
$ "$PYTHON" $RUNTESTDIR/killdaemons.py $DAEMON_PIDS
$ cat $TESTTMP/errors.log
$ cat >> $TESTTMP/lfsstoreerror.py <<EOF
> import errno
> from hgext.lfs import blobstore
>
> _numverifies = 0
> _readerr = True
>
> def reposetup(ui, repo):
> # Nothing to do with a remote repo
> if not repo.local():
> return
>
> store = repo.svfs.lfslocalblobstore
> class badstore(store.__class__):
> def download(self, oid, src):
> '''Called in the server to handle reading from the client in a
> PUT request.'''
> origread = src.read
> def _badread(nbytes):
> # Simulate bad data/checksum failure from the client
> return b'0' * len(origread(nbytes))
> src.read = _badread
> super(badstore, self).download(oid, src)
>
> def _read(self, vfs, oid, verify):
> '''Called in the server to read data for a GET request, and then
> calls self._verify() on it before returning.'''
> global _readerr
> # One time simulation of a read error
> if _readerr:
> _readerr = False
> raise IOError(errno.EIO, '%s: I/O error' % oid)
> # Simulate corrupt content on client download
> blobstore._verify(oid, 'dummy content')
>
> def verify(self, oid):
> '''Called in the server to populate the Batch API response,
> letting the client re-upload if the file is corrupt.'''
> # Fail verify in Batch API for one clone command and one push
> # command with an IOError. Then let it through to access other
> # functions. Checksum failure is tested elsewhere.
> global _numverifies
> _numverifies += 1
> if _numverifies <= 2:
> raise IOError(errno.EIO, '%s: I/O error' % oid)
> return super(badstore, self).verify(oid)
>
> store.__class__ = badstore
> EOF
$ rm -rf `hg config lfs.usercache`
$ rm -f $TESTTMP/access.log $TESTTMP/errors.log
$ hg --config "lfs.usercache=$TESTTMP/servercache" \
> --config extensions.lfsstoreerror=$TESTTMP/lfsstoreerror.py \
> -R server serve -d \
> -p $HGPORT1 --pid-file=hg.pid -A $TESTTMP/access.log -E $TESTTMP/errors.log
$ cat hg.pid >> $DAEMON_PIDS
Test an I/O error in localstore.verify() (Batch API) with GET
$ hg clone http://localhost:$HGPORT1 httpclone2
(remote is using large file support (lfs); lfs will be enabled for this repository)
requesting all changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files
new changesets 525251863cad
updating to branch default
abort: LFS server error for "lfs.bin": Internal server error!
[255]
Test an I/O error in localstore.verify() (Batch API) with PUT
$ echo foo > client/lfs.bin
$ hg -R client ci -m 'mod lfs'
$ hg -R client push http://localhost:$HGPORT1
pushing to http://localhost:$HGPORT1/
searching for changes
abort: LFS server error for "unknown": Internal server error!
[255]
TODO: figure out how to associate the file name in the error above
Test a bad checksum sent by the client in the transfer API
$ hg -R client push http://localhost:$HGPORT1
pushing to http://localhost:$HGPORT1/
searching for changes
abort: HTTP error: HTTP Error 422: corrupt blob (oid=b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c, action=upload)!
[255]
$ echo 'test lfs file' > server/lfs3.bin
$ hg --config experimental.lfs.disableusercache=True \
> -R server ci -Aqm 'another lfs file'
$ hg -R client pull -q http://localhost:$HGPORT1
Test an I/O error during the processing of the GET request
$ hg --config lfs.url=http://localhost:$HGPORT1/.git/info/lfs \
> -R client update -r tip
abort: HTTP error: HTTP Error 500: Internal Server Error (oid=276f73cfd75f9fb519810df5f5d96d6594ca2521abd86cbcd92122f7d51a1f3d, action=download)!
[255]
Test a checksum failure during the processing of the GET request
$ hg --config lfs.url=http://localhost:$HGPORT1/.git/info/lfs \
> -R client update -r tip
abort: HTTP error: HTTP Error 422: corrupt blob (oid=276f73cfd75f9fb519810df5f5d96d6594ca2521abd86cbcd92122f7d51a1f3d, action=download)!
[255]
$ "$PYTHON" $RUNTESTDIR/killdaemons.py $DAEMON_PIDS
$ cat $TESTTMP/access.log
$LOCALIP - - [$LOGDATE$] "GET /?cmd=capabilities HTTP/1.1" 200 - (glob)
$LOCALIP - - [$LOGDATE$] "GET /?cmd=batch HTTP/1.1" 200 - x-hgarg-1:cmds=heads+%3Bknown+nodes%3D x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull (glob)
$LOCALIP - - [$LOGDATE$] "GET /?cmd=getbundle HTTP/1.1" 200 - x-hgarg-1:bookmarks=1&bundlecaps=HG20%2Cbundle2%3DHG20%250Abookmarks%250Achangegroup%253D01%252C02%252C03%250Adigests%253Dmd5%252Csha1%252Csha512%250Aerror%253Dabort%252Cunsupportedcontent%252Cpushraced%252Cpushkey%250Ahgtagsfnodes%250Alistkeys%250Aphases%253Dheads%250Apushkey%250Aremote-changegroup%253Dhttp%252Chttps%250Arev-branch-cache%250Astream%253Dv2&cg=1&common=0000000000000000000000000000000000000000&heads=525251863cad618e55d483555f3d00a2ca99597e&listkeys=bookmarks&phases=1 x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull (glob)
$LOCALIP - - [$LOGDATE$] "POST /.git/info/lfs/objects/batch HTTP/1.1" 200 - (glob)
$LOCALIP - - [$LOGDATE$] "GET /?cmd=capabilities HTTP/1.1" 200 - (glob)
$LOCALIP - - [$LOGDATE$] "GET /?cmd=batch HTTP/1.1" 200 - x-hgarg-1:cmds=heads+%3Bknown+nodes%3D392c05922088bacf8e68a6939b480017afbf245d x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull (glob)
$LOCALIP - - [$LOGDATE$] "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=phases x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull (glob)
$LOCALIP - - [$LOGDATE$] "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=bookmarks x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull (glob)
$LOCALIP - - [$LOGDATE$] "GET /?cmd=branchmap HTTP/1.1" 200 - x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull (glob)
$LOCALIP - - [$LOGDATE$] "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=bookmarks x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull (glob)
$LOCALIP - - [$LOGDATE$] "POST /.git/info/lfs/objects/batch HTTP/1.1" 200 - (glob)
$LOCALIP - - [$LOGDATE$] "GET /?cmd=capabilities HTTP/1.1" 200 - (glob)
$LOCALIP - - [$LOGDATE$] "GET /?cmd=batch HTTP/1.1" 200 - x-hgarg-1:cmds=heads+%3Bknown+nodes%3D392c05922088bacf8e68a6939b480017afbf245d x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull (glob)
$LOCALIP - - [$LOGDATE$] "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=phases x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull (glob)
$LOCALIP - - [$LOGDATE$] "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=bookmarks x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull (glob)
$LOCALIP - - [$LOGDATE$] "GET /?cmd=branchmap HTTP/1.1" 200 - x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull (glob)
$LOCALIP - - [$LOGDATE$] "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=bookmarks x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull (glob)
$LOCALIP - - [$LOGDATE$] "POST /.git/info/lfs/objects/batch HTTP/1.1" 200 - (glob)
$LOCALIP - - [$LOGDATE$] "PUT /.hg/lfs/objects/b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c HTTP/1.1" 422 - (glob)
$LOCALIP - - [$LOGDATE$] "GET /?cmd=capabilities HTTP/1.1" 200 - (glob)
$LOCALIP - - [$LOGDATE$] "GET /?cmd=batch HTTP/1.1" 200 - x-hgarg-1:cmds=heads+%3Bknown+nodes%3D392c05922088bacf8e68a6939b480017afbf245d x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull (glob)
$LOCALIP - - [$LOGDATE$] "GET /?cmd=getbundle HTTP/1.1" 200 - x-hgarg-1:bookmarks=1&bundlecaps=HG20%2Cbundle2%3DHG20%250Abookmarks%250Achangegroup%253D01%252C02%252C03%250Adigests%253Dmd5%252Csha1%252Csha512%250Aerror%253Dabort%252Cunsupportedcontent%252Cpushraced%252Cpushkey%250Ahgtagsfnodes%250Alistkeys%250Aphases%253Dheads%250Apushkey%250Aremote-changegroup%253Dhttp%252Chttps%250Arev-branch-cache%250Astream%253Dv2&cg=1&common=525251863cad618e55d483555f3d00a2ca99597e&heads=506bf3d83f78c54b89e81c6411adee19fdf02156+525251863cad618e55d483555f3d00a2ca99597e&listkeys=bookmarks&phases=1 x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull (glob)
$LOCALIP - - [$LOGDATE$] "POST /.git/info/lfs/objects/batch HTTP/1.1" 200 - (glob)
$LOCALIP - - [$LOGDATE$] "GET /.hg/lfs/objects/276f73cfd75f9fb519810df5f5d96d6594ca2521abd86cbcd92122f7d51a1f3d HTTP/1.1" 500 - (glob)
$LOCALIP - - [$LOGDATE$] "POST /.git/info/lfs/objects/batch HTTP/1.1" 200 - (glob)
$LOCALIP - - [$LOGDATE$] "GET /.hg/lfs/objects/276f73cfd75f9fb519810df5f5d96d6594ca2521abd86cbcd92122f7d51a1f3d HTTP/1.1" 422 - (glob)
$ grep -v ' File "' $TESTTMP/errors.log
$LOCALIP - - [$ERRDATE$] HG error: Exception happened while processing request '/.git/info/lfs/objects/batch': (glob)
$LOCALIP - - [$ERRDATE$] HG error: Traceback (most recent call last): (glob)
$LOCALIP - - [$ERRDATE$] HG error: verifies = store.verify(oid) (glob)
$LOCALIP - - [$ERRDATE$] HG error: raise IOError(errno.EIO, '%s: I/O error' % oid) (glob)
$LOCALIP - - [$ERRDATE$] HG error: IOError: [Errno 5] f03217a32529a28a42d03b1244fe09b6e0f9fd06d7b966d4d50567be2abe6c0e: I/O error (glob)
$LOCALIP - - [$ERRDATE$] HG error: (glob)
$LOCALIP - - [$ERRDATE$] HG error: Exception happened while processing request '/.git/info/lfs/objects/batch': (glob)
$LOCALIP - - [$ERRDATE$] HG error: Traceback (most recent call last): (glob)
$LOCALIP - - [$ERRDATE$] HG error: verifies = store.verify(oid) (glob)
$LOCALIP - - [$ERRDATE$] HG error: raise IOError(errno.EIO, '%s: I/O error' % oid) (glob)
$LOCALIP - - [$ERRDATE$] HG error: IOError: [Errno 5] b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c: I/O error (glob)
$LOCALIP - - [$ERRDATE$] HG error: (glob)
$LOCALIP - - [$ERRDATE$] HG error: Exception happened while processing request '/.hg/lfs/objects/b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c': (glob)
$LOCALIP - - [$ERRDATE$] HG error: Traceback (most recent call last): (glob)
$LOCALIP - - [$ERRDATE$] HG error: localstore.download(oid, req.bodyfh) (glob)
$LOCALIP - - [$ERRDATE$] HG error: super(badstore, self).download(oid, src) (glob)
$LOCALIP - - [$ERRDATE$] HG error: % oid) (glob)
$LOCALIP - - [$ERRDATE$] HG error: LfsCorruptionError: corrupt remote lfs object: b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c (glob)
$LOCALIP - - [$ERRDATE$] HG error: (glob)
$LOCALIP - - [$ERRDATE$] Exception happened during processing request '/.hg/lfs/objects/276f73cfd75f9fb519810df5f5d96d6594ca2521abd86cbcd92122f7d51a1f3d': (glob)
Traceback (most recent call last):
self.do_write()
self.do_hgweb()
for chunk in self.server.application(env, self._start_response):
for r in self._runwsgi(req, res, repo):
rctx, req, res, self.check_perm)
return func(*(args + a), **kw)
lambda perm:
res.setbodybytes(localstore.read(oid))
blob = self._read(self.vfs, oid, verify)
raise IOError(errno.EIO, '%s: I/O error' % oid)
IOError: [Errno 5] 276f73cfd75f9fb519810df5f5d96d6594ca2521abd86cbcd92122f7d51a1f3d: I/O error
$LOCALIP - - [$ERRDATE$] HG error: Exception happened while processing request '/.hg/lfs/objects/276f73cfd75f9fb519810df5f5d96d6594ca2521abd86cbcd92122f7d51a1f3d': (glob)
$LOCALIP - - [$ERRDATE$] HG error: Traceback (most recent call last): (glob)
$LOCALIP - - [$ERRDATE$] HG error: res.setbodybytes(localstore.read(oid)) (glob)
$LOCALIP - - [$ERRDATE$] HG error: blob = self._read(self.vfs, oid, verify) (glob)
$LOCALIP - - [$ERRDATE$] HG error: blobstore._verify(oid, 'dummy content') (glob)
$LOCALIP - - [$ERRDATE$] HG error: hint=_('run hg verify')) (glob)
$LOCALIP - - [$ERRDATE$] HG error: LfsCorruptionError: detected corrupt lfs object: 276f73cfd75f9fb519810df5f5d96d6594ca2521abd86cbcd92122f7d51a1f3d (glob)
$LOCALIP - - [$ERRDATE$] HG error: (glob)
Basic Authorization headers are returned by the Batch API, and sent back with
the GET/PUT request.
$ rm -f $TESTTMP/access.log $TESTTMP/errors.log
$ cat >> $HGRCPATH << EOF
> [experimental]
> lfs.disableusercache = True
> [auth]
> l.schemes=http
> l.prefix=lo
> l.username=user
> l.password=pass
> EOF
$ cat << EOF > userpass.py
> import base64
> from mercurial.hgweb import common
> def perform_authentication(hgweb, req, op):
> auth = req.headers.get(b'Authorization')
> if not auth:
> raise common.ErrorResponse(common.HTTP_UNAUTHORIZED, b'who',
> [(b'WWW-Authenticate', b'Basic Realm="mercurial"')])
> if base64.b64decode(auth.split()[1]).split(b':', 1) != [b'user',
> b'pass']:
> raise common.ErrorResponse(common.HTTP_FORBIDDEN, b'no')
> def extsetup():
> common.permhooks.insert(0, perform_authentication)
> EOF
$ hg --config extensions.x=$TESTTMP/userpass.py \
> -R server serve -d -p $HGPORT1 --pid-file=hg.pid \
> -A $TESTTMP/access.log -E $TESTTMP/errors.log
$ mv hg.pid $DAEMON_PIDS
$ hg clone --debug http://localhost:$HGPORT1 auth_clone | egrep '^[{}]| '
{
"objects": [
{
"actions": {
"download": {
"expires_at": "$ISO_8601_DATE_TIME$"
"header": {
"Accept": "application/vnd.git-lfs"
"Authorization": "Basic dXNlcjpwYXNz"
}
"href": "http://localhost:$HGPORT1/.hg/lfs/objects/276f73cfd75f9fb519810df5f5d96d6594ca2521abd86cbcd92122f7d51a1f3d"
}
}
"oid": "276f73cfd75f9fb519810df5f5d96d6594ca2521abd86cbcd92122f7d51a1f3d"
"size": 14
}
]
"transfer": "basic"
}
$ echo 'another blob' > auth_clone/lfs.blob
$ hg -R auth_clone ci -Aqm 'add blob'
$ hg -R auth_clone --debug push | egrep '^[{}]| '
{
"objects": [
{
"actions": {
"upload": {
"expires_at": "$ISO_8601_DATE_TIME$"
"header": {
"Accept": "application/vnd.git-lfs"
"Authorization": "Basic dXNlcjpwYXNz"
}
"href": "http://localhost:$HGPORT1/.hg/lfs/objects/df14287d8d75f076a6459e7a3703ca583ca9fb3f4918caed10c77ac8622d49b3"
}
}
"oid": "df14287d8d75f076a6459e7a3703ca583ca9fb3f4918caed10c77ac8622d49b3"
"size": 13
}
]
"transfer": "basic"
}
$ "$PYTHON" $RUNTESTDIR/killdaemons.py $DAEMON_PIDS
$ cat $TESTTMP/access.log $TESTTMP/errors.log
$LOCALIP - - [$LOGDATE$] "GET /?cmd=capabilities HTTP/1.1" 401 - (glob)
$LOCALIP - - [$LOGDATE$] "GET /?cmd=capabilities HTTP/1.1" 200 - (glob)
$LOCALIP - - [$LOGDATE$] "GET /?cmd=batch HTTP/1.1" 200 - x-hgarg-1:cmds=heads+%3Bknown+nodes%3D x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull (glob)
$LOCALIP - - [$LOGDATE$] "GET /?cmd=getbundle HTTP/1.1" 200 - x-hgarg-1:bookmarks=1&bundlecaps=HG20%2Cbundle2%3DHG20%250Abookmarks%250Achangegroup%253D01%252C02%252C03%250Adigests%253Dmd5%252Csha1%252Csha512%250Aerror%253Dabort%252Cunsupportedcontent%252Cpushraced%252Cpushkey%250Ahgtagsfnodes%250Alistkeys%250Aphases%253Dheads%250Apushkey%250Aremote-changegroup%253Dhttp%252Chttps%250Arev-branch-cache%250Astream%253Dv2&cg=1&common=0000000000000000000000000000000000000000&heads=506bf3d83f78c54b89e81c6411adee19fdf02156+525251863cad618e55d483555f3d00a2ca99597e&listkeys=bookmarks&phases=1 x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull (glob)
$LOCALIP - - [$LOGDATE$] "POST /.git/info/lfs/objects/batch HTTP/1.1" 401 - (glob)
$LOCALIP - - [$LOGDATE$] "POST /.git/info/lfs/objects/batch HTTP/1.1" 200 - (glob)
$LOCALIP - - [$LOGDATE$] "GET /.hg/lfs/objects/276f73cfd75f9fb519810df5f5d96d6594ca2521abd86cbcd92122f7d51a1f3d HTTP/1.1" 200 - (glob)
$LOCALIP - - [$LOGDATE$] "GET /?cmd=capabilities HTTP/1.1" 401 - (glob)
$LOCALIP - - [$LOGDATE$] "GET /?cmd=capabilities HTTP/1.1" 200 - (glob)
$LOCALIP - - [$LOGDATE$] "GET /?cmd=batch HTTP/1.1" 200 - x-hgarg-1:cmds=heads+%3Bknown+nodes%3D525251863cad618e55d483555f3d00a2ca99597e+4d9397055dc0c205f3132f331f36353ab1a525a3 x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull (glob)
$LOCALIP - - [$LOGDATE$] "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=phases x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull (glob)
$LOCALIP - - [$LOGDATE$] "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=bookmarks x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull (glob)
$LOCALIP - - [$LOGDATE$] "GET /?cmd=branchmap HTTP/1.1" 200 - x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull (glob)
$LOCALIP - - [$LOGDATE$] "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=bookmarks x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull (glob)
$LOCALIP - - [$LOGDATE$] "POST /.git/info/lfs/objects/batch HTTP/1.1" 401 - (glob)
$LOCALIP - - [$LOGDATE$] "POST /.git/info/lfs/objects/batch HTTP/1.1" 200 - (glob)
$LOCALIP - - [$LOGDATE$] "PUT /.hg/lfs/objects/df14287d8d75f076a6459e7a3703ca583ca9fb3f4918caed10c77ac8622d49b3 HTTP/1.1" 201 - (glob)
$LOCALIP - - [$LOGDATE$] "POST /?cmd=unbundle HTTP/1.1" 200 - x-hgarg-1:heads=666f726365 x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull (glob)
$LOCALIP - - [$LOGDATE$] "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=phases x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull (glob)