This adds the SPDX-License-Identifier license headers to the majority of
our source files to make it clearer exactly which license files are under.
The bulk of the files are under GPL v2.0 with one found to be under V2.0
or later, some under MIT and some have dual license. There are some files
which are potentially harder to classify where we've imported upstream code
and those can be handled specifically in later commits.
The COPYING file is replaced with LICENSE.X files which contain the full
license texts.
(Bitbake rev: ff237c33337f4da2ca06c3a2c49699bc26608a6b)
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Under heavy load with process delays, sqlite can issues a "locking
protocol" error (SQLITE_PROTOCOL). Unfortunately, it is impossible to
distinguish between actual locking protocol errors and this race
condition, so they best that can be done is to retry the operation when
the error is detected.
[YOCTO #13108]
(Bitbake rev: 93cd15644f9d12b38abea276fee7b5bade0276df)
Signed-off-by: Joshua Watt <JPEWhacker@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
The configuration of the sqlite database can timeout due to locking
under heavy load and should be subject to the same retry logic as the
other statements.
[YOCTO #13069]
(Bitbake rev: 5a2a95b0396e39662968690b3065d2f88167a71c)
Signed-off-by: Joshua Watt <JPEWhacker@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Turns off the shared cache. It isn't a significant factor in performance
(now that WAL is enabled), and is a really bad idea to have enabled in
processes that fork() (as bitbake it prone to do).
[YOCTO #13030]
(Bitbake rev: 71b427bf01374973a971c10cb64024c8ef2a11eb)
Signed-off-by: Joshua Watt <JPEWhacker@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Enabling the write ahead log improves database reliability, speeds up
writes (since they mostly happen sequentially), and speeds up readers
(since they are no longer blocked by most write operations). The
persistent database is very read heavy, so the auto-checkpoint size is
reduced from the default (usually 1000) to 100 so that reads remain
fast.
[YOCTO #13030]
(Bitbake rev: 79100fa67539f9654af9bf6d3e6842eb5c12e989)
Signed-off-by: Joshua Watt <JPEWhacker@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Constructs the "key" column in the persistent database as a non-NULL
primary key. This significantly speeds up lookup operations in large
databases.
[YOCTO #13030]
(Bitbake rev: f5ba7775cfcb90401522d977cc66fe0f5aeb7a66)
Signed-off-by: Joshua Watt <JPEWhacker@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
The original implementation of persistent data executed all SQL
statements via sqlite3.Connection.execute(). Behind the scenes, this
function created a sqlite3 Cursor object, executed the statement, then
returned the cursor. However, the implementation did not account for
this and failed to close the cursor object when it was done. The cursor
would eventually be closed when the garbage collector got around to
destroying it. However, sqlite has a limit on the number of cursors that
can exist at any given time, and once this limit is reached it will
block a query to wait for a cursor to be destroyed. Under heavy database
queries, this can result in Python deadlocking with itself, since the
SQL query will block waiting for a free cursor, but Python can no longer
run garbage collection (as it is blocked) to free one.
This restructures the SQLTable class to use two decorators to aid in
performing actions correctly. The first decorator (@retry) wraps a
member function in the retry logic that automatically restarts the
function in the event that the database is locked.
The second decorator (@transaction) wraps the function so that it occurs
in a database transaction, which will automatically COMMIT the changes
on success and ROLLBACK on failure. This function additionally creates
an explicit cursor, passes it to the wrapped function, and cleans it up
when the function is finished.
Note that it is still possible to leak cursors when iterating. This is
much less frequent, but can still be mitigated by wrapping the iteration
in a `with` statement:
with db.iteritems() as it:
for (k, v) in it:
...
As a side effect, since most statements are wrapped in a transaction,
setting the isolation_level when the connection is created is no longer
necessary.
[YOCTO #13030]
(Bitbake rev: e8b9d3f534ef404780be23b601d5a4bb9cec928a)
Signed-off-by: Joshua Watt <JPEWhacker@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
These imports were from python 2.6 and earlier, 2.4 in some cases.
Drop them since we're all python3 now.
(Bitbake rev: 7ef12684e8647b006bf46cae695069d4bfece1cf)
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
getVar() now defaults to expanding by default, thus remove the True
option from getVar() calls with a regex search and replace.
Search made with the following regex: getVar ?\(( ?[^,()]*), True\)
(Bitbake rev: 3b45c479de8640f92dd1d9f147b02e1eecfaadc8)
Signed-off-by: Joshua Lock <joshua.g.lock@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Revision d0f904d407f57998419bd9c305ce53e5eaa36b24 accidentally broke
items() and values() and made them cause stack overflows. Undo that
breakage.
(Bitbake rev: 88c5beca705efa7df4a96fb2aaf3f13c336ac328)
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Various misc changes to convert bitbake to python3 which don't warrant
separation into separate commits.
(Bitbake rev: d0f904d407f57998419bd9c305ce53e5eaa36b24)
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Python 2's sqlite3 module defaults to returning Unicode strings for SQL
text queries, which could trickle down to other parts of bitbake code and
cause unexpected Unicode conversions. Using byte strings avoids this issue.
For example, the git fetcher's AUTOREV support caches HEAD SHA1's using
bb.persist_data, so sometimes the git command strings passed to fetch2's
runfetchcmd() were unicode, potentially causing UnicodeDecodeErrors when
it appended the values of environment variables containing non-ASCII chars.
[YOCTO #9382]
(Bitbake rev: 09623a0811c613a47a01ae465b822d8156faca30)
Signed-off-by: Daniel Klauer <daniel.klauer@gin.de>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
If the power were to fail, it doesn't matter to us much if the data
makes it to disk or not, we'd have other problems. However an fsync()
call on a multi build autobuilder is painful so lets avoid them.
This is particularly true in this case if a timeout causes a reconnect
during a build.
(Bitbake rev: ec28256ac2a30f047585e8f61200d764bc295ded)
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
- one can use get_by_pattern to get a list of values associated
with keys that match the specified pattern
(Bitbake rev: 6ee1f58698e2d782c54ce5aec271bcec26107eac)
Signed-off-by: Constantin Musca <constantinx.musca@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
[YOCTO #1761]
Reconnect to the backend Sqlite DB in 'database is locked' exception so
the timeout can be leveraged in each time retry.
(Bitbake rev: b310382764367b573c84f33d847c6eb821266f9e)
Signed-off-by: Lianhao Lu <lianhao.lu@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
- use os.chmod, not os.fchmod, as the latter is missing under pypy
- rearrange our imports a bit
- don't die if sqlite3 is missing shared cache support
(Bitbake rev: f229824dc9c453adf6067500e2bf6761536e4f2f)
Signed-off-by: Chris Larson <chris_larson@mentor.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Think this got inadvertantly dropped when switching to the new API.
(Bitbake rev: 628c5159d1151b89f2b7210c8819489e8dc9a84d)
Signed-off-by: Chris Larson <chris_larson@mentor.com>
Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
Rather than having to run .addDomain() and then .getValue(domain, key),
.setValue(domain, key), etc, now it just works as mappings.
As an example:
setValue(domain, key) -> persist[domain][key] = value
It also arranges things so we can construct objects of this type using any
arbitrary filename/path for the sqlite3 database, rather than being so
tightly bound to the metadata.
(Bitbake rev: d9e8b8af308ae871efdc8ef0782be30af8c1f894)
Signed-off-by: Chris Larson <chris_larson@mentor.com>
Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
Caching the database connection can cause serious issues if it results in
multiple processes (e.g. multiple tasks) simultaneously using the same
connection.
This reverts commit 8a6876752b90efd81d92f0947bfc9527d8260969.
(Bitbake rev: 60b9b18eafad5ac46c7cf1048d749d673c2ee0ad)
Signed-off-by: Chris Larson <chris_larson@mentor.com>
Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
Parallel processes interacting with the persist_data db can quite easily
explode without this.
(Bitbake rev: b3d5432cff0ff28f4c8a5bcf10efa3e383b4fd4d)
Signed-off-by: Chris Larson <chris_larson@mentor.com>
Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
We use a custom Logger subclass for our loggers
This logger provides:
- 'debug' method which accepts a debug level
- 'plain' method which bypasses log formatting
- 'verbose' method which is more detail than info, but less than debug
(Bitbake rev: 3b2c1fe5ca56daebb24073a9dd45723d3efd2a8d)
Signed-off-by: Chris Larson <chris_larson@mentor.com>
Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
It appears the timeout sometimes has no effect and we see database access failures. Combat
this by wrapping the execute function in all cases and retrying manually ourselves.
Thanks to Kevin Tian for help debugging this.
Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
Store database connection to persistent database in fetcher.
(Bitbake rev: 8a6876752b90efd81d92f0947bfc9527d8260969)
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
Signed-off-by: Chris Larson <chris_larson@mentor.com>
Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
