The tasks themselves now control whether they are executed again. To
compare it to the old system, oneshot tasks now return `false` and
repeating tasks return `true`.
Letting the housekeeper remove the tasks makes the code simpler and
removes the possibility of the task being removed while it is being
executed. It does introduce a deadlock possibility if a housekeeper
function is called inside a housekeeper task.
The old hkheartbeat variable was changed to the mxs_clock() function that
simply wraps an atomic load of the variable. This allows it to be
correctly read by MaxScale as well as opening up the possibility of
converting the value load to a relaxed memory order read.
Renamed the header and associated macros. Removed inclusion of the
heartbeat header from the housekeeper header and added it to the files
that were missing it.
According to customer reports collecting the statistics has a significant
impact on the performance. As we don't need that information we can just
as well turn off that.
Further, since maxscale-common now links to the sqlite3-library, no
module needs to do that explicitly.
The sprintf calls failed due to a warning about possible buffer
overflow. Curiously enough, the same warnings do appear on Fedora 26 but
only when the calls are changed to snprintf.
The test loads multiple modules in one call so we have to pre-load them
one by one to make sure that they are all present regardless of the
locations where the individual modules were built.
MXS-1545: handling of slave file EOF refactoring.
Some slave/router state are now checked before any WARN/ERROR messages
about slave file EOF.
The missing “next_file” is always logged with warn.
MXS-1530: check ANNOTATE_ROWS flag in connecting slave.
In MariaDB 10.2.4 replicate_annotate_row_events and
binlog_annotate_row_events have default to ON: this change checks
whether the connecting slave is not has ANNOTATE_ROWS in
blr_slave_binlog_dump(), those ANNOTATE_ROWS events can be sent or not
to the slave.
Stop replicating from master if unsupported binlog events are seen.
Also report error message for unsupported events
(blr_read_events_all_events) at maxscale start-up and with
maxbinlogcheck utility
The usage of the router_options has become optional in 2.1. This means
that the binlogrouter should not fail to start if no router_options are
defined.
Also lowered the error about master.ini to a warning as it is expected to
happen on a fresh installation.
MXS-1530: check ANNOTATE_ROWS flag in connecting slave.
In MariaDB 10.2.4 replicate_annotate_row_events and
binlog_annotate_row_events have default to ON: this change checks
whether the connecting slave is not has ANNOTATE_ROWS in
blr_slave_binlog_dump(), those ANNOTATE_ROWS events can be sent or not
to the slave.
The internal header directory conflicted with in-source builds causing a
build failure. This is fixed by renaming the internal header directory to
something other than maxscale.
The renaming pointed out a few problems in a couple of source files that
appeared to include internal headers when the headers were in fact public
headers.
Fixed maxctrl in-source builds by making the copying of the sources
optional.
The new `ssl_verify_peer_certificate` parameter controls whether the peer
certificate is verified. This allows self-signed certificates to be
properly used with MaxScale.
The transaction safety was checked even if master GTID registration was
disabled. This always caused a failure when the router was started without
the transaction safety parameter.
As transaction safety is required by the GTID registration, it is not very
helpful to refuse to start if an invalid set of options is detected. To
make usage of the master GTID registration easier, the transaction safety
is also automatically enabled.
Now SHOW ALL SLAVES STATUS reports new fields:
Retried_transactions;
Max_relay_log_size,
Executed_log_entries,
Slave_received_heartbeats,
Slave_heartbeat_period,
Gtid_Slave_Pos"
Currently binlog server doesn't send to slaves these event types:
- MARIADB10_START_ENCRYPTION_EVENT
- IGNORABLE_EVENT
It also skips events with LOG_EVENT_IGNORABLE_F flag.
This modification allows sending events with that flag.
