mirror of https://gitee.com/bigwinds/arangodb
593 lines
16 KiB
JavaScript
593 lines
16 KiB
JavaScript
////////////////////////////////////////////////////////////////////////////////
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/// @brief arango datafile debugger
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///
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/// @file
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///
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/// DISCLAIMER
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///
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/// Copyright 2004-2012 triAGENS GmbH, Cologne, Germany
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///
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/// Licensed under the Apache License, Version 2.0 (the "License");
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/// you may not use this file except in compliance with the License.
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/// You may obtain a copy of the License at
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///
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/// http://www.apache.org/licenses/LICENSE-2.0
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///
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/// Unless required by applicable law or agreed to in writing, software
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/// distributed under the License is distributed on an "AS IS" BASIS,
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/// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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/// See the License for the specific language governing permissions and
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/// limitations under the License.
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///
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/// Copyright holder is triAGENS GmbH, Cologne, Germany
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///
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/// @author Dr. Frank Celler
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/// @author Copyright 2012, triAGENS GmbH, Cologne, Germany
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////////////////////////////////////////////////////////////////////////////////
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var internal = require("internal");
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var console = require("console");
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var fs = require("fs");
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var printf = internal.printf;
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////////////////////////////////////////////////////////////////////////////////
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/// @addtogroup ArangoDB
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/// @{
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////////////////////////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////////////////////////
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/// @brief remove datafile
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////////////////////////////////////////////////////////////////////////////////
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function RemoveDatafile (collection, type, datafile) {
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var backup = datafile + ".corrupt";
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fs.move(datafile, backup);
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printf("Removed %s at %s\n", type, datafile);
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printf("Backup is in %s\n", backup);
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printf("\n");
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief wipe entries
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////////////////////////////////////////////////////////////////////////////////
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function WipeDatafile (collection, type, datafile, lastGoodPos) {
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collection.truncateDatafile(datafile, lastGoodPos);
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printf("Truncated and sealed datafile\n");
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief queries user to wipe a datafile
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////////////////////////////////////////////////////////////////////////////////
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function QueryWipeDatafile (collection, type, datafile, scan, lastGoodPos) {
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var entries = scan.entries;
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if (entries.length == 0) {
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if (type === "journal" || type === "compactor") {
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printf("WARNING: The journal is empty. Even the header is missing. Going\n");
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printf(" to remove the file.\n");
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}
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else {
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printf("WARNING: The datafile is empty. Even the header is missing. Going\n");
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printf(" to remove the datafile. This should never happen. Datafiles\n");
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printf(" are append-only. Make sure your hard disk does not contain\n");
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printf(" any hardware errors.\n");
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}
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printf("\n");
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RemoveDatafile(collection, type, datafile);
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return;
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}
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var ask = true;
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if (type === "journal") {
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if (entries.length === lastGoodPos + 3 && entries[lastGoodPos + 2].status === 2) {
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printf("WARNING: The journal was not closed properly, the last entry is corrupted.\n");
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printf(" This might happen ArangoDB was killed and the last entry was not\n");
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printf(" fully written to disk. Going to remove the last entry.\n");
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ask = false;
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}
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else {
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printf("WARNING: The journal was not closed properly, the last entries are corrupted.\n");
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printf(" This might happen ArangoDB was killed and the last entries were not\n");
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printf(" fully written to disk.\n");
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}
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}
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else {
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printf("WARNING: The datafile contains corrupt entries. This should never happen.\n");
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printf(" Datafiles are append-only. Make sure your hard disk does not contain\n");
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printf(" any hardware errors.\n");
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}
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printf("\n");
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if (ask) {
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printf("Wipe the last entries (Y/N)? ");
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var line = console.getline();
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if (line !== "yes" && line !== "YES" && line !== "y" && line !== "Y") {
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printf("ABORTING\n");
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return;
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}
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}
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var entry = entries[lastGoodPos];
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WipeDatafile(collection, type, datafile, entry.position + entry.size);
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief prints details about entries
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////////////////////////////////////////////////////////////////////////////////
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function PrintEntries (entries, amount) {
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var start, end;
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if (amount > 0) {
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start = 0;
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end = amount;
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if (end > entries.length) {
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end = entries.length;
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}
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}
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else {
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start = entries.length + amount - 1;
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if (start < 0) {
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return;
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}
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if (start < Math.abs(amount)) {
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return;
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}
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end = entries.length;
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}
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for (var i = start; i < end; ++i) {
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var entry = entries[i];
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var s = "unknown";
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switch (entry.status) {
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case 1: s = "OK"; break;
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case 2: s = "OK (end)"; break;
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case 3: s = "FAILED (empty)"; break;
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case 4: s = "FAILED (too small)"; break;
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case 5: s = "FAILED (crc mismatch)"; break;
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}
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printf(" %d: status %s type %d size %d, tick %s\n", i, s, entry.type, entry.size, entry.tick);
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}
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief checks a datafile deeply
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////////////////////////////////////////////////////////////////////////////////
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function DeepCheckDatafile (collection, type, datafile, scan, details) {
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var entries = scan.entries;
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printf("Entries\n");
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var lastGood = 0;
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var lastGoodPos = 0;
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var stillGood = true;
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if (details) {
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// print details
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PrintEntries(entries, 10);
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PrintEntries(entries, -10);
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}
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for (var i = 0; i < entries.length; ++i) {
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var entry = entries[i];
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if (entry.status === 1 || entry.status === 2) {
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if (stillGood) {
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lastGood = entry;
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lastGoodPos = i;
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}
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}
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else {
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stillGood = false;
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}
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}
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if (! stillGood) {
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printf(" Last good position: %d\n", lastGood.position + lastGood.size);
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printf("\n");
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QueryWipeDatafile(collection, type, datafile, scan, lastGoodPos);
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}
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printf("\n");
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief checks a datafile
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////////////////////////////////////////////////////////////////////////////////
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function CheckDatafile (collection, type, datafile, issues, details) {
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printf("Datafile\n");
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printf(" path: %s\n", datafile);
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printf(" type: %s\n", type);
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var scan = collection.datafileScan(datafile);
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printf(" current size: %d\n", scan.currentSize);
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printf(" maximal size: %d\n", scan.maximalSize);
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printf(" total used: %d\n", scan.endPosition);
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printf(" # of entries: %d\n", scan.numberMarkers);
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printf(" status: %d\n", scan.status);
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printf(" isSealed: %s\n", scan.isSealed ? "yes" : "no");
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// set default value to unknown
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var statusMessage = "UNKNOWN (" + scan.status + ")";
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var color = internal.COLORS.COLOR_YELLOW;
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switch (scan.status) {
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case 1:
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statusMessage = "OK";
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color = internal.COLORS.COLOR_GREEN;
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if (! scan.isSealed && type === "datafile") {
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color = internal.COLORS.COLOR_YELLOW;
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}
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break;
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case 2:
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statusMessage = "NOT OK (reached empty marker)";
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color = internal.COLORS.COLOR_RED;
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break;
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case 3:
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statusMessage = "FATAL (reached corrupt marker)";
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color = internal.COLORS.COLOR_RED;
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break;
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case 4:
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statusMessage = "FATAL (crc failed)";
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color = internal.COLORS.COLOR_RED;
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break;
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case 5:
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statusMessage = "FATAL (cannot open datafile or too small)";
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color = internal.COLORS.COLOR_RED;
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break;
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}
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printf(color);
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printf(" status: %s\n\n", statusMessage);
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printf(internal.COLORS.COLOR_RESET);
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if (scan.status !== 1) {
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issues.push({
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collection: collection.name(),
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path: datafile,
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type: type,
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status: scan.status,
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message: statusMessage,
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color: color
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});
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}
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if (scan.numberMarkers === 0) {
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statusMessage = "datafile contains no entries";
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color = internal.COLORS.COLOR_YELLOW;
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issues.push({
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collection: collection.name(),
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path: datafile,
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type: type,
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status: scan.status,
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message: statusMessage,
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color: color
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});
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printf(color);
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printf("WARNING: %s\n", statusMessage);
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printf(internal.COLORS.COLOR_RESET);
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RemoveDatafile(collection, type, datafile);
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return;
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}
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if (scan.entries[0].type !== 1000) {
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// asserting a TRI_DF_MARKER_HEADER as first marker
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statusMessage = "datafile contains no datafile header marker at pos #0!";
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color = internal.COLORS.COLOR_YELLOW;
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issues.push({
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collection: collection.name(),
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path: datafile,
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type: type,
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status: scan.status,
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message: statusMessage,
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color: color
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});
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printf(color);
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printf("WARNING: %s\n", statusMessage);
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printf(internal.COLORS.COLOR_RESET);
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RemoveDatafile(collection, type, datafile);
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return;
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}
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if (scan.entries.length === 2 && scan.entries[1].type !== 2000) {
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// asserting a TRI_COL_MARKER_HEADER as second marker
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statusMessage = "datafile contains no collection header marker at pos #1!";
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color = internal.COLORS.COLOR_YELLOW;
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issues.push({
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collection: collection.name(),
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path: datafile,
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type: type,
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status: scan.status,
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message: statusMessage,
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color: color
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});
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printf(color);
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printf("WARNING: %s\n", statusMessage);
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printf(internal.COLORS.COLOR_RESET);
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RemoveDatafile(collection, type, datafile);
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return;
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}
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if (type !== "journal" && scan.entries.length === 3 && scan.entries[2].type === 0) {
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// got the two initial header markers but nothing else...
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statusMessage = "datafile is empty but not sealed";
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color = internal.COLORS.COLOR_YELLOW;
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issues.push({
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collection: collection.name(),
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path: datafile,
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type: type,
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status: scan.status,
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message: statusMessage,
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color: color
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});
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printf(color);
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printf("WARNING: %s\n", statusMessage);
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printf(internal.COLORS.COLOR_RESET);
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RemoveDatafile(collection, type, datafile);
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return;
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}
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if (scan.status === 1 && scan.isSealed) {
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return;
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}
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DeepCheckDatafile(collection, type, datafile, scan, details);
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief checks a collection
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////////////////////////////////////////////////////////////////////////////////
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function CheckCollection (collection, issues, details) {
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printf("Database\n");
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printf(" name: %s\n", internal.db._name());
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printf(" path: %s\n", internal.db._path());
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printf("\n");
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printf("Collection\n");
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printf(" name: %s\n", collection.name());
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printf(" identifier: %s\n", collection._id);
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printf("\n");
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var datafiles = collection.datafiles();
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printf("Datafiles\n");
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printf(" # of journals: %d\n", datafiles.journals.length);
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printf(" # of compactors: %d\n", datafiles.compactors.length);
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printf(" # of datafiles: %d\n", datafiles.datafiles.length);
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printf("\n");
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for (var i = 0; i < datafiles.journals.length; ++i) {
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CheckDatafile(collection, "journal", datafiles.journals[i], issues, details);
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}
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for (var i = 0; i < datafiles.datafiles.length; ++i) {
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CheckDatafile(collection, "datafile", datafiles.datafiles[i], issues, details);
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}
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for (var i = 0; i < datafiles.compactors.length; ++i) {
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CheckDatafile(collection, "compactor", datafiles.compactors[i], issues, details);
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}
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief select and check a collection
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////////////////////////////////////////////////////////////////////////////////
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function main (argv) {
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var databases = internal.db._listDatabases();
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var i;
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var collectionSorter = function (l, r) {
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var lName = l.name().toLowerCase();
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var rName = r.name().toLowerCase();
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if (lName !== rName) {
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return lName < rName ? -1 : 1;
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}
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return 0;
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};
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printf("%s\n", " ___ _ __ _ _ ___ ___ ___ ");
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printf("%s\n", " / \\__ _| |_ __ _ / _(_) | ___ / \\/ __\\ / _ \\");
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printf("%s\n", " / /\\ / _` | __/ _` | |_| | |/ _ \\ / /\\ /__\\// / /_\\/");
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printf("%s\n", " / /_// (_| | || (_| | _| | | __/ / /_// \\/ \\/ /_\\\\ ");
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printf("%s\n", "/___,' \\__,_|\\__\\__,_|_| |_|_|\\___| /___,'\\_____/\\____/ ");
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printf("\n");
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if (databases.length == 0) {
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printf("No databases available. Exiting\n");
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return;
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}
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databases.sort();
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printf("Available databases:\n");
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for (i = 0; i < databases.length; ++i) {
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printf(" %d: %s\n", i, databases[i]);
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}
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var line;
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printf("Database to check: ");
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while (true) {
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line = console.getline();
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if (line == "") {
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printf("Exiting. Please wait.\n");
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return;
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}
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else {
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var l = parseInt(line);
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if (l < 0 || l >= databases.length || l === null || l === undefined || isNaN(l)) {
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printf("Please select a number between 0 and %d: ", databases.length - 1);
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}
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else {
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internal.db._useDatabase(databases[l]);
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break;
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}
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}
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}
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printf("\n");
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var collections = internal.db._collections();
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if (collections.length == 0) {
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printf("No collections available. Exiting\n");
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return;
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}
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// sort the collections
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collections.sort(collectionSorter);
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printf("Available collections:\n");
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for (i = 0; i < collections.length; ++i) {
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printf(" %d: %s\n", i, collections[i].name());
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}
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printf(" *: all\n");
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printf("\n");
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printf("Collection to check: ");
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var a = [];
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while (true) {
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line = console.getline();
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if (line == "") {
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printf("Exiting. Please wait.\n");
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return;
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}
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if (line === "*") {
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for (i = 0; i < collections.length; ++i) {
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a.push(i);
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}
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break;
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}
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else {
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var l = parseInt(line);
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if (l < 0 || l >= collections.length || l === null || l === undefined || isNaN(l)) {
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printf("Please select a number between 0 and %d: ", collections.length - 1);
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}
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else {
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a.push(l);
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break;
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}
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}
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}
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printf("\n");
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printf("Prints details (yes/no)? ");
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var details = false;
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while (true) {
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line = console.getline();
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if (line === "") {
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printf("Exiting. Please wait.\n");
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return;
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}
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if (line === "yes" || line === "YES" || line === "y" || line === "Y") {
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details = true;
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}
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break;
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}
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var issues = [ ];
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for (i = 0; i < a.length; ++i) {
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var collection = collections[a[i]];
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printf("Checking collection #%d: %s\n", a[i], collection.name());
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printf("-------------------------------------------------------------------\n");
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var last = Math.round(internal.time());
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// unload all collections not yet unloaded (2) & not corrupted (0)
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while (collection.status() !== 2 && collection.status() !== 0) {
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collection.unload();
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var next = Math.round(internal.time());
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if (next != last) {
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printf("Trying to unload collection '%s'\n", collection.name());
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last = next;
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}
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}
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printf("\n");
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CheckCollection(collection, issues, details);
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}
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if (issues.length > 0) {
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// report issues
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printf("\n%d issue(s) found:\n------------------------------------------\n", issues.length);
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for (i = 0; i < issues.length; ++i) {
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var issue = issues[i];
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printf(" issue #%d\n collection: %s\n path: %s\n type: %s\n",
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i,
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issue.collection,
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issue.path,
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String(issue.type));
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printf("%s", issue.color);
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printf(" message: %s", issue.message);
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printf("%s", internal.COLORS.COLOR_RESET);
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printf("\n\n");
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}
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}
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else {
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printf("\nNo issues found.\n");
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}
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @}
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////////////////////////////////////////////////////////////////////////////////
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// Local Variables:
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// mode: outline-minor
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// outline-regexp: "^\\(/// @brief\\|/// @addtogroup\\|// --SECTION--\\|/// @page\\|/// @}\\)"
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// End:
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