/usr/lib/x86_64-linux-gnu/glusterfs/glusterfind/changelogdata.py is in glusterfs-common 3.8.8-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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# -*- coding: utf-8 -*-
# Copyright (c) 2015 Red Hat, Inc. <http://www.redhat.com/>
# This file is part of GlusterFS.
#
# This file is licensed to you under your choice of the GNU Lesser
# General Public License, version 3 or any later version (LGPLv3 or
# later), or the GNU General Public License, version 2 (GPLv2), in all
# cases as published by the Free Software Foundation.
import sqlite3
import urllib
import os
from utils import RecordType
from utils import output_path_prepare
class OutputMerger(object):
"""
Class to merge the output files collected from
different nodes
"""
def __init__(self, db_path, all_dbs):
self.conn = sqlite3.connect(db_path)
self.cursor = self.conn.cursor()
self.cursor_reader = self.conn.cursor()
query = "DROP TABLE IF EXISTS finallist"
self.cursor.execute(query)
query = """
CREATE TABLE finallist(
id INTEGER PRIMARY KEY AUTOINCREMENT,
ts VARCHAR,
type VARCHAR,
gfid VARCHAR,
path1 VARCHAR,
path2 VARCHAR,
UNIQUE (type, path1, path2) ON CONFLICT IGNORE
)
"""
self.cursor.execute(query)
# If node database exists, read each db and insert into
# final table. Ignore if combination of TYPE PATH1 PATH2
# already exists
for node_db in all_dbs:
if os.path.exists(node_db):
conn = sqlite3.connect(node_db)
cursor = conn.cursor()
query = """
SELECT ts, type, gfid, path1, path2
FROM gfidpath
WHERE path1 != ''
ORDER BY id ASC
"""
for row in cursor.execute(query):
self.add_if_not_exists(row[0], row[1], row[2],
row[3], row[4])
self.conn.commit()
def add_if_not_exists(self, ts, ty, gfid, path1, path2=""):
# Adds record to finallist only if not exists
query = """
INSERT INTO finallist(ts, type, gfid, path1, path2)
VALUES(?, ?, ?, ?, ?)
"""
self.cursor.execute(query, (ts, ty, gfid, path1, path2))
def get(self):
query = """SELECT type, path1, path2 FROM finallist
ORDER BY ts ASC, id ASC"""
return self.cursor_reader.execute(query)
def get_failures(self):
query = """
SELECT gfid
FROM finallist
WHERE path1 = '' OR (path2 = '' AND type = 'RENAME')
"""
return self.cursor_reader.execute(query)
class ChangelogData(object):
def __init__(self, dbpath, args):
self.conn = sqlite3.connect(dbpath)
self.cursor = self.conn.cursor()
self.cursor_reader = self.conn.cursor()
self._create_table_gfidpath()
self._create_table_pgfid()
self._create_table_inodegfid()
self.args = args
self.path_sep = "/" if args.no_encode else "%2F"
def _create_table_gfidpath(self):
drop_table = "DROP TABLE IF EXISTS gfidpath"
self.cursor.execute(drop_table)
create_table = """
CREATE TABLE gfidpath(
id INTEGER PRIMARY KEY AUTOINCREMENT,
ts VARCHAR,
type VARCHAR,
gfid VARCHAR(40),
pgfid1 VARCHAR(40) DEFAULT '',
bn1 VARCHAR(500) DEFAULT '',
pgfid2 VARCHAR(40) DEFAULT '',
bn2 VARCHAR(500) DEFAULT '',
path1 VARCHAR DEFAULT '',
path2 VARCHAR DEFAULT ''
)
"""
self.cursor.execute(create_table)
def _create_table_inodegfid(self):
drop_table = "DROP TABLE IF EXISTS inodegfid"
self.cursor.execute(drop_table)
create_table = """
CREATE TABLE inodegfid(
inode INTEGER PRIMARY KEY,
gfid VARCHAR(40),
converted INTEGER DEFAULT 0,
UNIQUE (inode, gfid) ON CONFLICT IGNORE
)
"""
self.cursor.execute(create_table)
def _create_table_pgfid(self):
drop_table = "DROP TABLE IF EXISTS pgfid"
self.cursor.execute(drop_table)
create_table = """
CREATE TABLE pgfid(
pgfid VARCHAR(40) PRIMARY KEY,
UNIQUE (pgfid) ON CONFLICT IGNORE
)
"""
self.cursor.execute(create_table)
def _get(self, tablename, filters):
# SELECT * FROM <TABLENAME> WHERE <CONDITION>
params = []
query = "SELECT * FROM %s WHERE 1=1" % tablename
for key, value in filters.items():
query += " AND %s = ?" % key
params.append(value)
return self.cursor_reader.execute(query, params)
def _get_distinct(self, tablename, distinct_field, filters):
# SELECT DISTINCT <COL> FROM <TABLENAME> WHERE <CONDITION>
params = []
query = "SELECT DISTINCT %s FROM %s WHERE 1=1" % (distinct_field,
tablename)
for key, value in filters.items():
query += " AND %s = ?" % key
params.append(value)
return self.cursor_reader.execute(query, params)
def _delete(self, tablename, filters):
# DELETE FROM <TABLENAME> WHERE <CONDITIONS>
query = "DELETE FROM %s WHERE 1=1" % tablename
params = []
for key, value in filters.items():
query += " AND %s = ?" % key
params.append(value)
self.cursor.execute(query, params)
def _add(self, tablename, data):
# INSERT INTO <TABLENAME>(<col1>, <col2>..) VALUES(?,?..)
query = "INSERT INTO %s(" % tablename
fields = []
params = []
for key, value in data.items():
fields.append(key)
params.append(value)
values_substitute = len(fields)*["?"]
query += "%s) VALUES(%s)" % (",".join(fields),
",".join(values_substitute))
self.cursor.execute(query, params)
def _update(self, tablename, data, filters):
# UPDATE <TABLENAME> SET col1 = ?,.. WHERE col1=? AND ..
params = []
update_fields = []
for key, value in data.items():
update_fields.append("%s = ?" % key)
params.append(value)
query = "UPDATE %s SET %s WHERE 1 = 1" % (tablename,
", ".join(update_fields))
for key, value in filters.items():
query += " AND %s = ?" % key
params.append(value)
self.cursor.execute(query, params)
def _exists(self, tablename, filters):
if not filters:
return False
query = "SELECT COUNT(1) FROM %s WHERE 1=1" % tablename
params = []
for key, value in filters.items():
query += " AND %s = ?" % key
params.append(value)
self.cursor.execute(query, params)
row = self.cursor.fetchone()
return True if row[0] > 0 else False
def gfidpath_add(self, changelogfile, ty, gfid, pgfid1="", bn1="",
pgfid2="", bn2="", path1="", path2=""):
self._add("gfidpath", {
"ts": changelogfile.split(".")[-1],
"type": ty,
"gfid": gfid,
"pgfid1": pgfid1,
"bn1": bn1,
"pgfid2": pgfid2,
"bn2": bn2,
"path1": path1,
"path2": path2
})
def gfidpath_update(self, data, filters):
self._update("gfidpath", data, filters)
def gfidpath_delete(self, filters):
self._delete("gfidpath", filters)
def gfidpath_exists(self, filters):
return self._exists("gfidpath", filters)
def gfidpath_get(self, filters={}):
return self._get("gfidpath", filters)
def gfidpath_get_distinct(self, distinct_field, filters={}):
return self._get_distinct("gfidpath", distinct_field, filters)
def pgfid_add(self, pgfid):
self._add("pgfid", {
"pgfid": pgfid
})
def pgfid_update(self, data, filters):
self._update("pgfid", data, filters)
def pgfid_get(self, filters={}):
return self._get("pgfid", filters)
def pgfid_get_distinct(self, distinct_field, filters={}):
return self._get_distinct("pgfid", distinct_field, filters)
def pgfid_exists(self, filters):
return self._exists("pgfid", filters)
def inodegfid_add(self, inode, gfid, converted=0):
self._add("inodegfid", {
"inode": inode,
"gfid": gfid,
"converted": converted
})
def inodegfid_update(self, data, filters):
self._update("inodegfid", data, filters)
def inodegfid_get(self, filters={}):
return self._get("inodegfid", filters)
def inodegfid_get_distinct(self, distinct_field, filters={}):
return self._get_distinct("inodegfid", distinct_field, filters)
def inodegfid_exists(self, filters):
return self._exists("inodegfid", filters)
def append_path1(self, path, inode):
# || is for concatenate in SQL
query = """UPDATE gfidpath SET path1 = path1 || ',' || ?
WHERE gfid IN (SELECT gfid FROM inodegfid WHERE inode = ?)"""
self.cursor.execute(query, (path, inode))
def gfidpath_set_path1(self, path1, pgfid1):
# || is for concatenate in SQL
if path1 == "":
update_str1 = "? || bn1"
update_str2 = "? || bn2"
else:
update_str1 = "? || '{0}' || bn1".format(self.path_sep)
update_str2 = "? || '{0}' || bn2".format(self.path_sep)
query = """UPDATE gfidpath SET path1 = %s
WHERE pgfid1 = ?""" % update_str1
self.cursor.execute(query, (path1, pgfid1))
# Set Path2 if pgfid1 and pgfid2 are same
query = """UPDATE gfidpath SET path2 = %s
WHERE pgfid2 = ?""" % update_str2
self.cursor.execute(query, (path1, pgfid1))
def gfidpath_set_path2(self, path2, pgfid2):
# || is for concatenate in SQL
if path2 == "":
update_str = "? || bn2"
else:
update_str = "? || '{0}' || bn2".format(self.path_sep)
query = """UPDATE gfidpath SET path2 = %s
WHERE pgfid2 = ?""" % update_str
self.cursor.execute(query, (path2, pgfid2))
def when_create_mknod_mkdir(self, changelogfile, data):
# E <GFID> <MKNOD|CREATE|MKDIR> <MODE> <USER> <GRP> <PGFID>/<BNAME>
# Add the Entry to DB
# urllib.unquote_plus will not handle unicode so, encode Unicode to
# represent in 8 bit format and then unquote
pgfid1, bn1 = urllib.unquote_plus(
data[6].encode("utf-8")).split("/", 1)
if self.args.no_encode:
# No urlencode since no_encode is set, so convert again to Unicode
# format from previously encoded.
bn1 = bn1.decode("utf-8").strip()
else:
# Quote again the basename
bn1 = urllib.quote_plus(bn1.strip())
self.gfidpath_add(changelogfile, RecordType.NEW, data[1], pgfid1, bn1)
def when_rename(self, changelogfile, data):
# E <GFID> RENAME <OLD_PGFID>/<BNAME> <PGFID>/<BNAME>
pgfid1, bn1 = urllib.unquote_plus(
data[3].encode("utf-8")).split("/", 1)
pgfid2, bn2 = urllib.unquote_plus(
data[4].encode("utf-8")).split("/", 1)
if self.args.no_encode:
# Quote again the basename
bn1 = bn1.decode("utf-8").strip()
bn2 = bn2.decode("utf-8").strip()
else:
# Quote again the basename
bn1 = urllib.quote_plus(bn1.strip())
bn2 = urllib.quote_plus(bn2.strip())
if self.gfidpath_exists({"gfid": data[1], "type": "NEW",
"pgfid1": pgfid1, "bn1": bn1}):
# If <OLD_PGFID>/<BNAME> is same as CREATE, Update
# <NEW_PGFID>/<BNAME> in NEW.
self.gfidpath_update({"pgfid1": pgfid2, "bn1": bn2},
{"gfid": data[1], "type": "NEW",
"pgfid1": pgfid1, "bn1": bn1})
elif self.gfidpath_exists({"gfid": data[1], "type": "RENAME",
"pgfid2": pgfid1, "bn2": bn1}):
# If we are renaming file back to original name then just
# delete the entry since it will effectively be a no-op
if self.gfidpath_exists({"gfid": data[1], "type": "RENAME",
"pgfid2": pgfid1, "bn2": bn1,
"pgfid1": pgfid2, "bn1": bn2}):
self.gfidpath_delete({"gfid": data[1], "type": "RENAME",
"pgfid2": pgfid1, "bn2": bn1})
else:
# If <OLD_PGFID>/<BNAME> is same as <PGFID2>/<BN2>
# (may be previous RENAME)
# then UPDATE <NEW_PGFID>/<BNAME> as <PGFID2>/<BN2>
self.gfidpath_update({"pgfid2": pgfid2, "bn2": bn2},
{"gfid": data[1], "type": "RENAME",
"pgfid2": pgfid1, "bn2": bn1})
else:
# Else insert as RENAME
self.gfidpath_add(changelogfile, RecordType.RENAME, data[1],
pgfid1, bn1, pgfid2, bn2)
if self.gfidpath_exists({"gfid": data[1], "type": "MODIFY"}):
# If MODIFY exists already for that GFID, remove it and insert
# again so that MODIFY entry comes after RENAME entry
# Output will have MODIFY <NEWNAME>
self.gfidpath_delete({"gfid": data[1], "type": "MODIFY"})
self.gfidpath_add(changelogfile, RecordType.MODIFY, data[1])
def when_link_symlink(self, changelogfile, data):
# E <GFID> <LINK|SYMLINK> <PGFID>/<BASENAME>
# Add as New record in Db as Type NEW
pgfid1, bn1 = urllib.unquote_plus(
data[3].encode("utf-8")).split("/", 1)
if self.args.no_encode:
# Quote again the basename
bn1 = bn1.decode("utf-8").strip()
else:
# Quote again the basename
bn1 = urllib.quote_plus(bn1.strip())
self.gfidpath_add(changelogfile, RecordType.NEW, data[1], pgfid1, bn1)
def when_data_meta(self, changelogfile, data):
# If GFID row exists, Ignore else Add to Db
if not self.gfidpath_exists({"gfid": data[1], "type": "NEW"}) and \
not self.gfidpath_exists({"gfid": data[1], "type": "MODIFY"}):
self.gfidpath_add(changelogfile, RecordType.MODIFY, data[1])
def when_unlink_rmdir(self, changelogfile, data):
# E <GFID> <UNLINK|RMDIR> <PGFID>/<BASENAME>
pgfid1, bn1 = urllib.unquote_plus(
data[3].encode("utf-8")).split("/", 1)
if self.args.no_encode:
bn1 = bn1.decode("utf-8").strip()
else:
# Quote again the basename
bn1 = urllib.quote_plus(bn1.strip())
deleted_path = data[4] if len(data) == 5 else ""
if deleted_path != "":
deleted_path = output_path_prepare(deleted_path,
self.args)
if self.gfidpath_exists({"gfid": data[1], "type": "NEW",
"pgfid1": pgfid1, "bn1": bn1}):
# If path exists in table as NEW with same GFID
# Delete that row
self.gfidpath_delete({"gfid": data[1], "type": "NEW",
"pgfid1": pgfid1, "bn1": bn1})
else:
# Else Record as DELETE
self.gfidpath_add(changelogfile, RecordType.DELETE, data[1],
pgfid1, bn1, path1=deleted_path)
# Update path1 as deleted_path if pgfid1 and bn1 is same as deleted
self.gfidpath_update({"path1": deleted_path}, {"gfid": data[1],
"pgfid1": pgfid1,
"bn1": bn1})
# Update path2 as deleted_path if pgfid2 and bn2 is same as deleted
self.gfidpath_update({"path2": deleted_path}, {
"type": RecordType.RENAME,
"gfid": data[1],
"pgfid2": pgfid1,
"bn2": bn1})
# If deleted directory is parent for somebody
query1 = """UPDATE gfidpath SET path1 = ? || '{0}' || bn1
WHERE pgfid1 = ? AND path1 != ''""".format(self.path_sep)
self.cursor.execute(query1, (deleted_path, data[1]))
query1 = """UPDATE gfidpath SET path2 = ? || '{0}' || bn1
WHERE pgfid2 = ? AND path2 != ''""".format(self.path_sep)
self.cursor.execute(query1, (deleted_path, data[1]))
def commit(self):
self.conn.commit()
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