1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
|
/*-
* Public Domain 2014-2020 MongoDB, Inc.
* Public Domain 2008-2014 WiredTiger, Inc.
*
* This is free and unencumbered software released into the public domain.
*
* Anyone is free to copy, modify, publish, use, compile, sell, or
* distribute this software, either in source code form or as a compiled
* binary, for any purpose, commercial or non-commercial, and by any
* means.
*
* In jurisdictions that recognize copyright laws, the author or authors
* of this software dedicate any and all copyright interest in the
* software to the public domain. We make this dedication for the benefit
* of the public at large and to the detriment of our heirs and
* successors. We intend this dedication to be an overt act of
* relinquishment in perpetuity of all present and future rights to this
* software under copyright law.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
#include "format.h"
/*
* bulk_begin_transaction --
* Begin a bulk-load transaction.
*/
static void
bulk_begin_transaction(WT_SESSION *session)
{
uint64_t ts;
char buf[64];
wiredtiger_begin_transaction(session, "isolation=snapshot");
ts = __wt_atomic_addv64(&g.timestamp, 1);
testutil_check(__wt_snprintf(buf, sizeof(buf), "read_timestamp=%" PRIx64, ts));
testutil_check(session->timestamp_transaction(session, buf));
}
/*
* bulk_commit_transaction --
* Commit a bulk-load transaction.
*/
static void
bulk_commit_transaction(WT_SESSION *session)
{
uint64_t ts;
char buf[64];
ts = __wt_atomic_addv64(&g.timestamp, 1);
testutil_check(__wt_snprintf(buf, sizeof(buf), "commit_timestamp=%" PRIx64, ts));
testutil_check(session->commit_transaction(session, buf));
/* Update the oldest timestamp, otherwise updates are pinned in memory. */
timestamp_once(session);
}
/*
* bulk_rollback_transaction --
* Rollback a bulk-load transaction.
*/
static void
bulk_rollback_transaction(WT_SESSION *session)
{
testutil_check(session->rollback_transaction(session, NULL));
}
void
wts_load(void)
{
WT_CONNECTION *conn;
WT_CURSOR *cursor;
WT_DECL_RET;
WT_ITEM key, value;
WT_SESSION *session;
uint32_t committed_keyno, keyno, v;
bool is_bulk;
conn = g.wts_conn;
testutil_check(conn->open_session(conn, NULL, NULL, &session));
trace_msg("%s", "=============== bulk load start");
/*
* No bulk load with custom collators, the order of insertion will not match the collation
* order.
*/
is_bulk = true;
if (g.c_reverse)
is_bulk = false;
/*
* open_cursor can return EBUSY if concurrent with a metadata operation, retry in that case.
*/
while ((ret = session->open_cursor(
session, g.uri, NULL, is_bulk ? "bulk,append" : NULL, &cursor)) == EBUSY)
__wt_yield();
testutil_check(ret);
/* Set up the key/value buffers. */
key_gen_init(&key);
val_gen_init(&value);
if (g.c_txn_timestamps)
bulk_begin_transaction(session);
for (committed_keyno = keyno = 0; ++keyno <= g.c_rows;) {
key_gen(&key, keyno);
val_gen(NULL, &value, keyno);
switch (g.type) {
case FIX:
if (!is_bulk)
cursor->set_key(cursor, keyno);
cursor->set_value(cursor, *(uint8_t *)value.data);
if (g.trace_all)
trace_msg("bulk %" PRIu32 " {0x%02" PRIx8 "}", keyno, ((uint8_t *)value.data)[0]);
break;
case VAR:
if (!is_bulk)
cursor->set_key(cursor, keyno);
cursor->set_value(cursor, &value);
if (g.trace_all)
trace_msg("bulk %" PRIu32 " {%.*s}", keyno, (int)value.size, (char *)value.data);
break;
case ROW:
cursor->set_key(cursor, &key);
cursor->set_value(cursor, &value);
if (g.trace_all)
trace_msg("bulk %" PRIu32 " {%.*s}, {%.*s}", keyno, (int)key.size, (char *)key.data,
(int)value.size, (char *)value.data);
break;
}
/*
* We don't want to size the cache to ensure the initial data set can load in the in-memory
* case, guaranteeing the load succeeds probably means future updates are also guaranteed to
* succeed, which isn't what we want. If we run out of space in the initial load, reset the
* row counter and continue.
*/
if ((ret = cursor->insert(cursor)) != 0) {
testutil_assert(ret == WT_CACHE_FULL || ret == WT_ROLLBACK);
if (g.c_txn_timestamps) {
bulk_rollback_transaction(session);
bulk_begin_transaction(session);
}
/*
* Decrease inserts since they won't be successful if we're hitting cache limits, and
* increase the delete percentage to get some extra space once the run starts. We can't
* simply modify the values because they have to equal 100 when the database is reopened
* (we are going to rewrite the CONFIG file, too).
*/
if (g.c_insert_pct > 5) {
g.c_delete_pct += g.c_insert_pct - 5;
g.c_insert_pct = 5;
}
v = g.c_write_pct / 2;
g.c_delete_pct += v;
g.c_write_pct -= v;
break;
}
/* Restart the enclosing transaction every 5K operations so we don't overflow the cache. */
if (keyno % 5000 == 0) {
/* Report on progress. */
track("bulk load", keyno, NULL);
if (g.c_txn_timestamps) {
bulk_commit_transaction(session);
committed_keyno = keyno;
bulk_begin_transaction(session);
}
}
}
/*
* Ideally, the insert loop runs until the number of rows plus one, in which case row counts are
* correct. If the loop exited early, reset the counters and rewrite the CONFIG file (so reopens
* aren't surprised).
*/
if (keyno != g.c_rows + 1) {
g.rows = committed_keyno;
g.c_rows = (uint32_t)committed_keyno;
config_print(false);
}
if (g.c_txn_timestamps)
bulk_commit_transaction(session);
testutil_check(cursor->close(cursor));
trace_msg("%s", "=============== bulk load stop");
testutil_check(session->close(session, NULL));
key_gen_teardown(&key);
val_gen_teardown(&value);
}
|
