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#!/usr/bin/env python
#
# Public Domain 2014-2016 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.
import Queue
import os, shutil, sys, threading, time, wiredtiger, wttest
from helper import compare_tables
class checkpoint_thread(threading.Thread):
def __init__(self, conn, done):
self.conn = conn
self.done = done
threading.Thread.__init__(self)
def run(self):
sess = self.conn.open_session()
while not self.done.isSet():
# Sleep for 10 milliseconds.
time.sleep(0.001)
sess.checkpoint()
sess.close()
class backup_thread(threading.Thread):
def __init__(self, conn, backup_dir, done):
self.backup_dir = backup_dir
self.conn = conn
self.done = done
threading.Thread.__init__(self)
def run(self):
sess = self.conn.open_session()
while not self.done.isSet():
# Sleep for 2 seconds.
time.sleep(2)
sess.checkpoint()
shutil.rmtree(self.backup_dir, ignore_errors=True)
os.mkdir(self.backup_dir)
cursor = sess.open_cursor('backup:', None, None)
files = list()
while True:
ret = cursor.next()
if ret != 0:
break
files.append(cursor.get_key())
shutil.copy(cursor.get_key(), self.backup_dir)
cursor.close()
bkp_conn = wiredtiger.wiredtiger_open(self.backup_dir)
bkp_session = bkp_conn.open_session()
# Verify that the backup was OK.
uris = list()
for next_file in files:
if next_file.startswith("WiredTiger"):
continue
uri = "file:" + next_file
uris.append(uri)
# TODO: We want a self.assertTrue here - but need to be a wttest to
# do that..
if not compare_tables(
self, sess, uris, "checkpoint=WiredTigerCheckpoint"):
print "Error: checkpoint tables differ."
else:
wttest.WiredTigerTestCase.printVerbose(
3, "Checkpoint tables match")
if not compare_tables(self, bkp_session, uris):
print "Error: backup tables differ."
else:
wttest.WiredTigerTestCase.printVerbose(3, "Backup tables match")
bkp_conn.close()
sess.close()
# A worker thread that pulls jobs off a queue. The jobs can be different types.
# Currently supported types are:
# 'i' for insert.
# 'b' for bounce (close and open) a session handle
# 'd' for drop a table
# 't' for create a table and insert a single item into it
class op_thread(threading.Thread):
def __init__(self, conn, uris, key_fmt, queue, done):
self.conn = conn
self.uris = uris
self.key_fmt = key_fmt
self.queue = queue
self.done = done
threading.Thread.__init__(self)
def run(self):
sess = self.conn.open_session()
if (len(self.uris) == 1):
c = sess.open_cursor(self.uris[0], None, None)
else:
cursors = list()
for next_uri in self.uris:
cursors.append(sess.open_cursor(next_uri, None, None))
while not self.done.isSet():
try:
op, key, value = self.queue.get_nowait()
if op == 'gi': # Group insert a number of tables.
sess.begin_transaction()
for next_cur in cursors:
next_cur[key] = value
sess.commit_transaction()
if op == 'gu': # Group update a number of tables.
sess.begin_transaction()
for next_cur in cursors:
next_cur.set_key(key)
next_cur.set_value(value)
next_cur.update()
next_cur.reset()
sess.commit_transaction()
if op == 'i': # Insert an item
c[key] = value
elif op == 'b': # Bounce the session handle.
c.close()
sess.close()
sess = self.conn.open_session()
c = sess.open_cursor(self.uris[0], None, None)
elif op == 'd': # Drop a table. The uri identifier is in key
for i in range(10):
try:
sess.drop(self.uris[0] + str(key))
break
except wiredtiger.WiredTigerError as e:
continue
elif op == 't': # Create a table, add an entry
sess.create(self.uris[0] + str(key),
"key_format=" + self.key_fmt + ",value_format=S")
try:
c2 = sess.open_cursor(self.uris[0] + str(key), None, None)
c2[key] = value
c2.close()
except wiredtiger.WiredTigerError as e:
# These operations can fail, if the drop in another
# thread happened
pass
self.queue.task_done()
except Queue.Empty:
# Wait on the queue until done is flagged
time.sleep(0.01)
if (len(self.uris) == 1):
c.close()
else:
for next_cursor in cursors:
next_cursor.close()
sess.close()
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