filesystem case sensitivity.
Hostname can include characters, which are invalid for use as filename,
thus case sensitivity test will fail to produce meaningful results.
Was because the quoting character was always '"' instead of being
retrieve from the JDBC source.
modified: storage/connect/JdbcInterface.java
modified: storage/connect/jdbconn.cpp
modified: storage/connect/tabjdbc.cpp
When a BF thread attempts to abort a victim thread's transaction,
the victim thread is not locked and thus its not safe to rely on
its data structures like htons registered for the trx.
So, instead of getting the registered htons from victim, innodb's
hton can be looked up directly from installed_htons[] and used to
abort the transaction. (Same technique is used in older versions)
The crash is caused due to a race condition where wsrep
startup threads invoke ha_maria::implicit_commit() method
while maria_hton is partially initialized. The fix is to
skip this method if plugins are uninitialized.
update info->write_end and info->write_pos together, with no
"return on error" in between, otherwise write_end might end up being
smaller than write_pos
RESTRICTED IN ALL GA RELEASES
Back port of WL#6782 to 5.5 and 5.6. This also includes
back port of Bug#20771331, Bug#20741572 and Bug#20770671.
Bug#24695274 and Bug#24679907 are also handled along with
this.
(Fixing both InnoDB and XtraDB)
Re-opening a TABLE object (after e.g. FLUSH TABLES or open table cache
eviction) causes ha_innobase to call
dict_stats_update(DICT_STATS_FETCH_ONLY_IF_NOT_IN_MEMORY).
Inside this call, the following is done:
dict_stats_empty_table(table);
dict_stats_copy(table, t);
On the other hand, commands like UPDATE make this call to get the "rows in
table" statistics in table->stats.records:
ha_innobase->info(HA_STATUS_VARIABLE|HA_STATUS_NO_LOCK)
note the HA_STATUS_NO_LOCK parameter. It means, no locks are taken by
::info() If the ::info() call happens between dict_stats_empty_table
and dict_stats_copy calls, the UPDATE's optimizer will get an estimate
of table->stats.records=1, which causes it to pick a full table scan,
which in turn will take a lot of row locks and cause other bad
consequences.
On OS X with clang 7.3.0 running any test as embedded crashes. As
libfeedback was not compiled with embedded, we had 2 notions of THD,
with different number of members. When calling inline functions defined in
sql_class.h, the functions were defined for 1 THD but called on an
object that is different. This resulted in erroneous data being returned
and shortly after, a crash within the alloc_query() function.
Recompile the feedback plugin for the embedded server specifically to
not have such symbol conflicts.
- Library path's are different now
- New dependency on Linux libuuid
- Add calls for SDK Initialization/shutdown
- Also add request_timeout parameter, default SDK HTTPs timeout appears
to be too short in my tests
Server uses gethostname() for the default base name for pid/log files.
If a character is not representable in current ANSI encoding, gethostname
replaces it with question mark. Thus, generated log file name would also
contain a question mark. However, Windows forbids certain characters in
filenames, among them '?'.
This is described in MSDN article https://msdn.microsoft.com/en-us/library/windows/desktop/aa365247(v=vs.85).aspx
At attempts to create the file via freopen() fails, thus server would not
be able to start.
The fix is to verify hostname and fall back to "mysql", if
invalid characters are found.
