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Merge #11781: Add -debuglogfile
option
5a7c09a
test: Add tests for `-debuglogfile` with subdirs (Anthony Towns)4158734
doc: Update release notes for `-debuglogfile` (Wladimir J. van der Laan)2323242
test: Add test for `-debuglogfile` (Wladimir J. van der Laan)cf5f432
Add `-debuglogfile` option (Wladimir J. van der Laan) Pull request description: This patch adds an option to configure the name and/or directory of the debug log file. The user can specify either a relative path, in which case the path is relative to the (network specific) data directory. They can also specify an absolute path to put the log anywhere else in the file system. Alternative to #11741 that gets rid of the concept of a "log directory" by specifying the path for the specific kind of log, the debug log. Which happens to be the only kind of log we have at this point*, but a hypothetical new kind of log (say, an audit log) would get a new option. This has more flexibility than specifying a directory which has to contain all of them. \* excluding `db.log` which is internally generated by the wallet database library, but that one moves along with `-walletdir`. Tree-SHA512: 4434d0e598dc23504e5c9e67fdbaef56db4f0fd490f9f54fd503e69d4dda9b5b69c539e1794ed841e72161b7b1dc3374d2f1193dd431b057566750e56fd8f24b
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@ -441,6 +441,7 @@ std::string HelpMessage(HelpMessageMode mode)
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}
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strUsage += HelpMessageOpt("-dbcache=<n>", strprintf(_("Set database cache size in megabytes (%d to %d, default: %d)"), nMinDbCache, nMaxDbCache, nDefaultDbCache));
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strUsage += HelpMessageOpt("-loadblock=<file>", _("Imports blocks from external blk000??.dat file on startup"));
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strUsage += HelpMessageOpt("-debuglogfile=<file>", strprintf(_("Specify location of debug log file: this can be an absolute path or a path relative to the data directory (default: %s)"), DEFAULT_DEBUGLOGFILE));
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strUsage += HelpMessageOpt("-maxorphantxsize=<n>", strprintf(_("Maximum total size of all orphan transactions in megabytes (default: %u)"), DEFAULT_MAX_ORPHAN_TRANSACTIONS_SIZE));
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strUsage += HelpMessageOpt("-maxmempool=<n>", strprintf(_("Keep the transaction memory pool below <n> megabytes (default: %u)"), DEFAULT_MAX_MEMPOOL_SIZE));
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strUsage += HelpMessageOpt("-mempoolexpiry=<n>", strprintf(_("Do not keep transactions in the mempool longer than <n> hours (default: %u)"), DEFAULT_MEMPOOL_EXPIRY));
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@ -1518,8 +1519,11 @@ bool AppInitMain(boost::thread_group& threadGroup, CScheduler& scheduler)
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ShrinkDebugFile();
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}
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if (fPrintToDebugLog)
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OpenDebugLog();
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if (fPrintToDebugLog) {
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if (!OpenDebugLog()) {
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return InitError(strprintf("Could not open debug log file %s", GetDebugLogPath().string()));
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}
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}
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if (!fLogTimestamps)
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LogPrintf("Startup time: %s\n", DateTimeStrFormat("%Y-%m-%d %H:%M:%S", GetTime()));
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37
src/util.cpp
37
src/util.cpp
@ -109,6 +109,7 @@ int nWalletBackups = 10;
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const char * const BITCOIN_CONF_FILENAME = "dash.conf";
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const char * const BITCOIN_PID_FILENAME = "dashd.pid";
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const char * const DEFAULT_DEBUGLOGFILE = "debug.log";
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ArgsManager gArgs;
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bool fPrintToConsole = false;
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@ -210,26 +211,40 @@ static void DebugPrintInit()
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vMsgsBeforeOpenLog = new std::list<std::string>;
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}
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void OpenDebugLog()
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fs::path GetDebugLogPath()
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{
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fs::path logfile(gArgs.GetArg("-debuglogfile", DEFAULT_DEBUGLOGFILE));
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if (logfile.is_absolute()) {
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return logfile;
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} else {
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return GetDataDir() / logfile;
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}
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}
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bool OpenDebugLog()
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{
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boost::call_once(&DebugPrintInit, debugPrintInitFlag);
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boost::mutex::scoped_lock scoped_lock(*mutexDebugLog);
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assert(fileout == nullptr);
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assert(vMsgsBeforeOpenLog);
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fs::path pathDebug = GetDataDir() / "debug.log";
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fs::path pathDebug = GetDebugLogPath();
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fileout = fsbridge::fopen(pathDebug, "a");
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if (fileout) {
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setbuf(fileout, nullptr); // unbuffered
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// dump buffered messages from before we opened the log
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while (!vMsgsBeforeOpenLog->empty()) {
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FileWriteStr(vMsgsBeforeOpenLog->front(), fileout);
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vMsgsBeforeOpenLog->pop_front();
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}
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if (!fileout) {
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return false;
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}
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setbuf(fileout, nullptr); // unbuffered
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// dump buffered messages from before we opened the log
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while (!vMsgsBeforeOpenLog->empty()) {
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FileWriteStr(vMsgsBeforeOpenLog->front(), fileout);
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vMsgsBeforeOpenLog->pop_front();
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}
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delete vMsgsBeforeOpenLog;
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vMsgsBeforeOpenLog = nullptr;
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return true;
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}
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struct CLogCategoryDesc
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@ -447,7 +462,7 @@ int LogPrintStr(const std::string &str)
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// reopen the log file, if requested
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if (fReopenDebugLog) {
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fReopenDebugLog = false;
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fs::path pathDebug = GetDataDir() / "debug.log";
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fs::path pathDebug = GetDebugLogPath();
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if (fsbridge::freopen(pathDebug,"a",fileout) != nullptr)
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setbuf(fileout, nullptr); // unbuffered
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}
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@ -876,7 +891,7 @@ void ShrinkDebugFile()
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// Amount of debug.log to save at end when shrinking (must fit in memory)
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constexpr size_t RECENT_DEBUG_HISTORY_SIZE = 10 * 1000000;
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// Scroll debug.log if it's getting too big
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fs::path pathLog = GetDataDir() / "debug.log";
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fs::path pathLog = GetDebugLogPath();
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FILE* file = fsbridge::fopen(pathLog, "r");
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// If debug.log file is more than 10% bigger the RECENT_DEBUG_HISTORY_SIZE
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// trim it down by saving only the last RECENT_DEBUG_HISTORY_SIZE bytes
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@ -56,6 +56,7 @@ static const bool DEFAULT_LOGTIMEMICROS = false;
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static const bool DEFAULT_LOGIPS = false;
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static const bool DEFAULT_LOGTIMESTAMPS = true;
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static const bool DEFAULT_LOGTHREADNAMES = false;
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extern const char * const DEFAULT_DEBUGLOGFILE;
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/** Signals for translation. */
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class CTranslationInterface
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@ -232,7 +233,8 @@ void CreatePidFile(const fs::path &path, pid_t pid);
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#ifdef WIN32
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fs::path GetSpecialFolderPath(int nFolder, bool fCreate = true);
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#endif
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void OpenDebugLog();
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fs::path GetDebugLogPath();
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bool OpenDebugLog();
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void ShrinkDebugFile();
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void runCommand(const std::string& strCommand);
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59
test/functional/feature_logging.py
Executable file
59
test/functional/feature_logging.py
Executable file
@ -0,0 +1,59 @@
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#!/usr/bin/env python3
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# Copyright (c) 2017 The Bitcoin Core developers
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# Distributed under the MIT software license, see the accompanying
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# file COPYING or http://www.opensource.org/licenses/mit-license.php.
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"""Test debug logging."""
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import os
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from test_framework.test_framework import BitcoinTestFramework
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class LoggingTest(BitcoinTestFramework):
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def set_test_params(self):
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self.num_nodes = 1
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self.setup_clean_chain = True
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def run_test(self):
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# test default log file name
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assert os.path.isfile(os.path.join(self.nodes[0].datadir, "regtest", "debug.log"))
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# test alternative log file name in datadir
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self.restart_node(0, ["-debuglogfile=foo.log"])
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assert os.path.isfile(os.path.join(self.nodes[0].datadir, "regtest", "foo.log"))
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# test alternative log file name outside datadir
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tempname = os.path.join(self.options.tmpdir, "foo.log")
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self.restart_node(0, ["-debuglogfile=%s" % tempname])
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assert os.path.isfile(tempname)
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# check that invalid log (relative) will cause error
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invdir = os.path.join(self.nodes[0].datadir, "regtest", "foo")
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invalidname = os.path.join("foo", "foo.log")
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self.stop_node(0)
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self.assert_start_raises_init_error(0, ["-debuglogfile=%s" % (invalidname)],
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"Error: Could not open debug log file")
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assert not os.path.isfile(os.path.join(invdir, "foo.log"))
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# check that invalid log (relative) works after path exists
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self.stop_node(0)
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os.mkdir(invdir)
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self.start_node(0, ["-debuglogfile=%s" % (invalidname)])
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assert os.path.isfile(os.path.join(invdir, "foo.log"))
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# check that invalid log (absolute) will cause error
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self.stop_node(0)
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invdir = os.path.join(self.options.tmpdir, "foo")
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invalidname = os.path.join(invdir, "foo.log")
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self.assert_start_raises_init_error(0, ["-debuglogfile=%s" % invalidname],
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"Error: Could not open debug log file")
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assert not os.path.isfile(os.path.join(invdir, "foo.log"))
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# check that invalid log (absolute) works after path exists
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self.stop_node(0)
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os.mkdir(invdir)
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self.start_node(0, ["-debuglogfile=%s" % (invalidname)])
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assert os.path.isfile(os.path.join(invdir, "foo.log"))
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if __name__ == '__main__':
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LoggingTest().main()
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@ -142,6 +142,7 @@ BASE_SCRIPTS= [
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'feature_shutdown.py',
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'privatesend.py',
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'uacomment.py',
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'feature_logging.py',
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]
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EXTENDED_SCRIPTS = [
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