Merge branch '2.0' into 2.1

CMakeLists.txt

@@ -60,6 +60,10 @@ include_directories(${PCRE2_INCLUDE_DIRS})
 if(NOT MARIADB_CONNECTOR_FOUND)
   message(STATUS "Building MariaDB Connector-C from source.")
   include(cmake/BuildMariaDBConnector.cmake)
+else()
+  # This is required as the core depends on the `connector-c` target
+  add_custom_target(connector-c)
+  message(STATUS "Using system Connector-C")
 endif()
 
 if(NOT JANSSON_FOUND)

query_classifier/test/classify.c

@@ -11,7 +11,6 @@
  * Public License.
  */
 
-#include <my_config.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>

server/core/maxscale/poll.h

@@ -57,7 +57,7 @@ void            dShowThreads(DCB *dcb);
 void            dShowEventQ(DCB *dcb);
 void            dShowEventStats(DCB *dcb);
 
-int             poll_get_stat(POLL_STAT stat);
+int64_t         poll_get_stat(POLL_STAT stat);
 RESULTSET       *eventTimesGetList();
 
 void            poll_send_message(enum poll_message msg, void *data);

server/core/poll.c

@@ -1517,8 +1517,7 @@ dShowEventStats(DCB *pdcb)
  * @param stat  The required statistic
  * @return      The value of that statistic
  */
-int
-poll_get_stat(POLL_STAT stat)
+int64_t poll_get_stat(POLL_STAT stat)
 {
     switch (stat)
     {

server/core/test/testfeedback.c

@@ -31,7 +31,6 @@
 #undef NDEBUG
 #endif
 #define FAILTEST(s) printf("TEST FAILED: " s "\n");return 1;
-#include <my_config.h>
 #include <mysql.h>
 #include <stdio.h>
 #include <maxscale/notification.h>

server/modules/filter/mqfilter/mqfilter.c

@@ -59,7 +59,6 @@
 
 #define MXS_MODULE_NAME "mqfilter"
 
-#include <my_config.h>
 #include <stdio.h>
 #include <fcntl.h>
 #include <maxscale/filter.h>

server/modules/protocol/examples/CMakeLists.txt

@@ -2,4 +2,5 @@ install_script(cdc.py core)
 install_script(cdc_users.py core)
 install_script(cdc_last_transaction.py core)
 install_script(cdc_kafka_producer.py core)
+install_script(cdc_schema.py core)
 install_file(cdc_schema.go core)

server/modules/protocol/examples/cdc.py

@@ -12,52 +12,32 @@
 # Public License.
 
 import time
-import json
-import re
 import sys
 import socket
 import hashlib
 import argparse
-import subprocess
 import selectors
 import binascii
 import os
 
-# Read data as JSON
-def read_json():
-    decoder = json.JSONDecoder()
-    rbuf = bytes()
-    ep = selectors.EpollSelector()
-    ep.register(sock, selectors.EVENT_READ)
+def read_data():
+    sel = selectors.DefaultSelector()
+    sel.register(sock, selectors.EVENT_READ)
 
     while True:
-        pollrc = ep.select(timeout=int(opts.read_timeout) if int(opts.read_timeout) > 0 else None)
         try:
+            events = sel.select(timeout=int(opts.read_timeout) if int(opts.read_timeout) > 0 else None)
             buf = sock.recv(4096, socket.MSG_DONTWAIT)
-            rbuf += buf
-            while True:
-                rbuf = rbuf.lstrip()
-                data = decoder.raw_decode(rbuf.decode('utf_8'))
-                rbuf = rbuf[data[1]:]
-                print(json.dumps(data[0]))
-        except ValueError as err:
-            sys.stdout.flush()
-            pass
-        except Exception:
+            if len(buf) > 0:
+                os.write(sys.stdout.fileno(), buf)
+                sys.stdout.flush()
+            else:
+                raise Exception('Socket was closed')
+
+        except BlockingIOError:
             break
-
-# Read data as Avro
-def read_avro():
-    ep = selectors.EpollSelector()
-    ep.register(sock, selectors.EVENT_READ)
-
-    while True:
-        pollrc = ep.select(timeout=int(opts.read_timeout) if int(opts.read_timeout) > 0 else None)
-        try:
-            buf = sock.recv(4096, socket.MSG_DONTWAIT)
-            os.write(sys.stdout.fileno(), buf)
-            sys.stdout.flush()
-        except Exception:
+        except Exception as ex:
+            print(ex, file=sys.stderr)
             break
 
 parser = argparse.ArgumentParser(description = "CDC Binary consumer", conflict_handler="resolve")
@@ -91,7 +71,4 @@ response = str(sock.recv(1024)).encode('utf_8')
 # Request a data stream
 sock.send(bytes(("REQUEST-DATA " + opts.FILE + (" " + opts.GTID if opts.GTID else "")).encode()))
 
-if opts.format == "JSON":
-    read_json()
-elif opts.format == "AVRO":
-    read_avro()
+read_data()

server/modules/protocol/examples/cdc_schema.py

@@ -0,0 +1,88 @@
+#!/usr/bin/env python3
+
+# Copyright (c) 2016 MariaDB Corporation Ab
+#
+# Use of this software is governed by the Business Source License included
+# in the LICENSE.TXT file and at www.mariadb.com/bsl11.
+#
+# Change Date: 2019-07-01
+#
+# On the date above, in accordance with the Business Source License, use
+# of this software will be governed by version 2 or later of the General
+# Public License.
+
+#
+# This program requires the MySQL Connector/Python to work
+#
+
+import mysql.connector as mysql
+import json
+import sys
+import argparse
+
+parser = argparse.ArgumentParser(description = "CDC Schema Generator", conflict_handler="resolve", epilog="""This program generates CDC schema files for a specific table or all the tables in a database. The
+schema files need to be generated if the binary log files do not contain the
+CREATE TABLE events that define the table layout.""")
+parser.add_argument("-h", "--host", dest="host", help="Network address where the connection is made", default="localhost")
+parser.add_argument("-P", "--port", dest="port", help="Port where the connection is made", default="3306")
+parser.add_argument("-u", "--user", dest="user", help="Username used when connecting", default="")
+parser.add_argument("-p", "--password", dest="password", help="Password used when connecting", default="")
+parser.add_argument("DATABASE", help="Generate Avro schemas for this database")
+
+opts = parser.parse_args(sys.argv[1:])
+
+def parse_field(row):
+    res = dict()
+    name = row[1].lower().split('(')[0]
+
+    if name in ("date", "datetime", "time", "timestamp", "year", "tinytext", "text",
+	        "mediumtext", "longtext", "char", "varchar", "enum", "set"):
+        res["type"] = "string"
+    elif name in ("tinyblob", "blob", "mediumblob", "longblob", "binary", "varbinary"):
+        res["type"] = "bytes"
+    elif name in ("int", "smallint", "mediumint", "integer", "tinyint", "short", "bit"):
+        res["type"] = "int"
+    elif name in ("float"):
+        res["type"] = "float"
+    elif name in ("double", "decimal"):
+        res["type"] = "double"
+    elif name in ("null"):
+        res["type"] = "null"
+    elif name in ("long", "bigint"):
+        res["type"] = "long"
+    else:
+        res["type"] = "string"
+
+
+    res["name"] = row[0].lower()
+
+    return res
+
+try:
+    conn = mysql.connect(user=opts.user, password=opts.password, host=opts.host, port=opts.port)
+    cursor = conn.cursor()
+    cursor.execute("SHOW TABLES FROM {}".format(opts.DATABASE))
+
+    tables = []
+    for res in cursor:
+        tables.append(res[0])
+
+
+    for t in tables:
+        schema = dict(namespace="MaxScaleChangeDataSchema.avro", type="record", name="ChangeRecord", fields=[])
+        cursor.execute("DESCRIBE {}.{}".format(opts.DATABASE, t))
+
+        for res in cursor:
+            schema["fields"].append(parse_field(res))
+
+        dest = open("{}.{}.000001.avsc".format(opts.DATABASE, t), 'w')
+        dest.write(json.dumps(schema))
+        dest.close()
+
+    cursor.close()
+    conn.close()
+
+except Exception as e:
+    print(e)
+    exit(1)
+

server/modules/routing/avrorouter/avro_rbr.c

@@ -507,9 +507,8 @@ uint8_t* process_row_event_data(TABLE_MAP *map, TABLE_CREATE *create, avro_value
     ptr += (ncolumns + 7) / 8;
     ss_dassert(ptr < end);
 
-    for (long i = 0; i < map->columns && npresent < ncolumns; i++)
+    for (long i = 0; i < map->columns && i < create->columns && npresent < ncolumns; i++)
     {
-        ss_dassert(create->columns == map->columns);
         ss_debug(int rc = )avro_value_get_by_name(record, create->column_names[i], &field, NULL);
         ss_dassert(rc == 0);
 
@@ -552,12 +551,31 @@ uint8_t* process_row_event_data(TABLE_MAP *map, TABLE_CREATE *create, avro_value
                 }
                 else
                 {
-                    uint8_t bytes = *ptr;
+                    /**
+                     * The first byte in the metadata stores the real type of
+                     * the string (ENUM and SET types are also stored as fixed
+                     * length strings).
+                     *
+                     * The first two bits of the second byte contain the XOR'ed
+                     * field length but as that information is not relevant for
+                     * us, we just use this information to know whether to read
+                     * one or two bytes for string length.
+                     */
+
+                    uint8_t bytes = *ptr++;
+                    int len = metadata[metadata_offset] +
+                        (((metadata[metadata_offset + 1] >> 4) & 0x3) ^ 0x3);
+
+                    if (len <= 255)
+                    {
+                        bytes += *ptr++ << 8;
+                    }
+
                     char str[bytes + 1];
-                    memcpy(str, ptr + 1, bytes);
+                    memcpy(str, ptr, bytes);
                     str[bytes] = '\0';
                     avro_value_set_string(&field, str);
-                    ptr += bytes + 1;
+                    ptr += bytes;
                     ss_dassert(ptr < end);
                 }
             }

server/modules/routing/avrorouter/avro_schema.c

@@ -794,6 +794,22 @@ void make_avro_token(char* dest, const char* src, int length)
     dest[length] = '\0';
 }
 
+int get_column_index(TABLE_CREATE *create, const char *tok)
+{
+    int idx = -1;
+
+    for (int x = 0; x < create->columns; x++)
+    {
+        if (strcasecmp(create->column_names[x], tok) == 0)
+        {
+            idx = x;
+            break;
+        }
+    }
+
+    return idx;
+}
+
 bool table_create_alter(TABLE_CREATE *create, const char *sql, const char *end)
 {
     const char *tbl = strcasestr(sql, "table"), *def;
@@ -844,27 +860,45 @@ bool table_create_alter(TABLE_CREATE *create, const char *sql, const char *end)
                 {
                     tok = get_tok(tok + len, &len, end);
 
-                    MXS_FREE(create->column_names[create->columns - 1]);
-                    char ** tmp = MXS_REALLOC(create->column_names, sizeof(char*) * create->columns - 1);
-                    ss_dassert(tmp);
+                    int idx = get_column_index(create, tok);
 
-                    if (tmp == NULL)
+                    if (idx != -1)
                     {
-                        return false;
+                        free(create->column_names[idx]);
+                        for (int i = idx; i < (int)create->columns - 1; i++)
+                        {
+                            create->column_names[i] = create->column_names[i + 1];
+                        }
+
+                        char ** tmp = realloc(create->column_names, sizeof(char*) * create->columns - 1);
+                        ss_dassert(tmp);
+
+                        if (tmp == NULL)
+                        {
+                            return false;
+                        }
+
+                        create->column_names = tmp;
+                        create->columns--;
+                        updates++;
                     }
 
-                    create->column_names = tmp;
-                    create->columns--;
-                    updates++;
                     tok = get_next_def(tok, end);
                     len = 0;
                 }
                 else if (tok_eq(ptok, "change", plen) && tok_eq(tok, "column", len))
                 {
                     tok = get_tok(tok + len, &len, end);
-                    MXS_FREE(create->column_names[create->columns - 1]);
-                    create->column_names[create->columns - 1] = strndup(tok, len);
-                    updates++;
+
+                    int idx = get_column_index(create, tok);
+
+                    if (idx != -1)
+                    {
+                        free(create->column_names[idx]);
+                        create->column_names[idx] = strndup(tok, len);
+                        updates++;
+                    }
+
                     tok = get_next_def(tok, end);
                     len = 0;
                 }
@@ -975,7 +1009,6 @@ TABLE_MAP *table_map_alloc(uint8_t *ptr, uint8_t hdr_len, TABLE_CREATE* create)
         map->id = table_id;
         map->version = create->version;
         map->flags = flags;
-        ss_dassert(column_count == create->columns);
         map->columns = column_count;
         map->column_types = MXS_MALLOC(column_count);
         /** Allocate at least one byte for the metadata */

server/modules/routing/maxinfo/maxinfo_exec.c

@@ -29,6 +29,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <inttypes.h>
 
 #include <maxscale/alloc.h>
 #include <maxscale/atomic.h>
@@ -998,7 +999,7 @@ maxinfo_zombie_dcbs()
 /**
  * Interface to poll stats for reads
  */
-static int
+static int64_t
 maxinfo_read_events()
 {
     return poll_get_stat(POLL_STAT_READ);
@@ -1007,7 +1008,7 @@ maxinfo_read_events()
 /**
  * Interface to poll stats for writes
  */
-static int
+static int64_t
 maxinfo_write_events()
 {
     return poll_get_stat(POLL_STAT_WRITE);
@@ -1016,7 +1017,7 @@ maxinfo_write_events()
 /**
  * Interface to poll stats for errors
  */
-static int
+static int64_t
 maxinfo_error_events()
 {
     return poll_get_stat(POLL_STAT_ERROR);
@@ -1025,7 +1026,7 @@ maxinfo_error_events()
 /**
  * Interface to poll stats for hangup
  */
-static int
+static int64_t
 maxinfo_hangup_events()
 {
     return poll_get_stat(POLL_STAT_HANGUP);
@@ -1034,7 +1035,7 @@ maxinfo_hangup_events()
 /**
  * Interface to poll stats for accepts
  */
-static int
+static int64_t
 maxinfo_accept_events()
 {
     return poll_get_stat(POLL_STAT_ACCEPT);
@@ -1043,7 +1044,7 @@ maxinfo_accept_events()
 /**
  * Interface to poll stats for event queue length
  */
-static int
+static int64_t
 maxinfo_event_queue_length()
 {
     return poll_get_stat(POLL_STAT_EVQ_LEN);
@@ -1052,7 +1053,7 @@ maxinfo_event_queue_length()
 /**
  * Interface to poll stats for max event queue length
  */
-static int
+static int64_t
 maxinfo_max_event_queue_length()
 {
     return poll_get_stat(POLL_STAT_EVQ_MAX);
@@ -1061,7 +1062,7 @@ maxinfo_max_event_queue_length()
 /**
  * Interface to poll stats for max queue time
  */
-static int
+static int64_t
 maxinfo_max_event_queue_time()
 {
     return poll_get_stat(POLL_STAT_MAX_QTIME);
@@ -1070,7 +1071,7 @@ maxinfo_max_event_queue_time()
 /**
  * Interface to poll stats for max event execution time
  */
-static int
+static int64_t
 maxinfo_max_event_exec_time()
 {
     return poll_get_stat(POLL_STAT_MAX_EXECTIME);
@@ -1137,17 +1138,17 @@ status_row(RESULTSET *result, void *data)
         resultset_row_set(row, 0, status[context->index].name);
         switch (status[context->index].type)
         {
-        case VT_STRING:
-            resultset_row_set(row, 1,
-                              (char *)(*status[context->index].func)());
-            break;
-        case VT_INT:
-            snprintf(buf, 80, "%ld",
-                     (long)(*status[context->index].func)());
-            resultset_row_set(row, 1, buf);
-            break;
-        default:
-            ss_dassert(!true);
+            case VT_STRING:
+                resultset_row_set(row, 1,
+                                  (char *)(*status[context->index].func)());
+                break;
+            case VT_INT:
+                snprintf(buf, 80, "%" PRId64,
+                         (int64_t)(*status[context->index].func)());
+                resultset_row_set(row, 1, buf);
+                break;
+            default:
+                ss_dassert(!true);
         }
         context->index++;
         return row;

server/modules/routing/readwritesplit/rwsplit_mysql.c

@@ -13,7 +13,6 @@
 
 #include "readwritesplit.h"
 
-#include <my_config.h>
 #include <stdio.h>
 #include <strings.h>
 #include <string.h>

server/modules/routing/schemarouter/schemarouter.c

@@ -13,7 +13,6 @@
 
 #include "schemarouter.h"
 
-#include <my_config.h>
 #include <stdio.h>
 #include <strings.h>
 #include <string.h>

server/modules/routing/schemarouter/sharding_common.h

@@ -15,7 +15,6 @@
  */
 
 #include <maxscale/cdefs.h>
-#include <my_config.h>
 #include <poll.h>
 #include <maxscale/buffer.h>
 #include <maxscale/modutil.h>