ACK, tested as well.

-AVM


On 2/17/2017 3:15 PM, Anders Widell wrote:
> I will implement it for the 5.2 release.
>
> regards,
>
> Anders Widell
>
>
> On 02/17/2017 10:42 AM, A V Mahesh wrote:
>> Hi Anders Widell,
>>
>> On 2/17/2017 2:59 PM, Anders Widell wrote:
>>> I will write a ticket on this.
>> If you are planing to address the new ticket  before 5.2 , it will be 
>> fine .
>> Otherwise  we need to fix  with some shot time solution at-least 
>> while Starting OpenSAF Services.
>>
>> -AVM
>>>
>>> regards,
>>>
>>> Anders Widell
>>>
>>>
>>> On 02/17/2017 10:25 AM, A V Mahesh wrote:
>>>> Hi Anders Widel,
>>>>
>>>> On 2/17/2017 2:42 PM, Anders Widell wrote:
>>>>> I have thought about introducing some way to force a flush, e.g. 
>>>>> by sending it the SIGHUP signal.
>>>>
>>>>  If you are planing to do above  later in separate  #Ticket , 
>>>> at-least for now  try to flushes in shot sequence
>>>>  while Starting OpenSAF Services , otherwise  it will be clueless 
>>>> if `log server` non graceful exit and node restarting with in 15 
>>>> seconds .
>>>>
>>>> -AVM
>>>>
>>>> On 2/17/2017 2:42 PM, Anders Widell wrote:
>>>>> Yes, the log server flushes messages to disk every 15 seconds. It 
>>>>> flushes immediately when the write buffer is full and when the log 
>>>>> server is shut down, though. I have thought about introducing some 
>>>>> way to force a flush, e.g. by sending it the SIGHUP signal.
>>>>>
>>>>> regards,
>>>>>
>>>>> Anders Widell
>>>>>
>>>>> On 02/17/2017 10:03 AM, A V Mahesh wrote:
>>>>>> Hi Anders Widell,
>>>>>>
>>>>>> While testing the patch , Delayed MDS loging is observed , see 
>>>>>> below even after  successful Re-Starting OpenSAF Services,
>>>>>> MDS logs are not reflected immediately , after some time the 
>>>>>> accumulated logs are getting added to /var/log/opensaf/mds.log
>>>>>> is this expected behavior ?
>>>>>>
>>>>>> ============================================================================================================
>>>>>>  
>>>>>>
>>>>>>
>>>>>> SC-1:/var/log/opensaf # /etc/init.d/opensafd restart
>>>>>> Stopping OpenSAF Services: done
>>>>>> /etc/init.d/opensafd: line 229: tartnable_coredump: command not 
>>>>>> found
>>>>>> Starting OpenSAF Services (Using TCP): done
>>>>>> SC-1:/var/log/opensaf # ls -l mds.log
>>>>>> -rw-r--r-- 1 root root 2868 Feb 17 14:23 mds.log
>>>>>> SC-1:/var/log/opensaf #
>>>>>> SC-1:/var/log/opensaf #
>>>>>> SC-1:/var/log/opensaf # /etc/init.d/opensafd restart
>>>>>> Stopping OpenSAF Services: done
>>>>>> /etc/init.d/opensafd: line 229: tartnable_coredump: command not 
>>>>>> found
>>>>>> Starting OpenSAF Services (Using TCP): done
>>>>>> SC-1:/var/log/opensaf # ls -l mds.log
>>>>>> -rw-r--r-- 1 root root 2868 Feb 17 14:23 mds.log
>>>>>> SC-1:/var/log/opensaf # ls -l mds.log
>>>>>> -rw-r--r-- 1 root root 2868 Feb 17 14:23 mds.log
>>>>>> SC-1:/var/log/opensaf # ls -l mds.log
>>>>>> -rw-r--r-- 1 root root 2868 Feb 17 14:23 mds.log
>>>>>> SC-1:/var/log/opensaf # ls -l mds.log
>>>>>> -rw-r--r-- 1 root root 2868 Feb 17 14:23 mds.log
>>>>>> SC-1:/var/log/opensaf # ls -l mds.log
>>>>>> -rw-r--r-- 1 root root 2868 Feb 17 14:23 mds.log
>>>>>> SC-1:/var/log/opensaf # ls -l mds.log
>>>>>> -rw-r--r-- 1 root root 2868 Feb 17 14:23 mds.log
>>>>>> SC-1:/var/log/opensaf # ls -l mds.log
>>>>>> -rw-r--r-- 1 root root 2868 Feb 17 14:23 mds.log
>>>>>> SC-1:/var/log/opensaf # ls -l mds.log
>>>>>> -rw-r--r-- 1 root root 5357 Feb 17 14:24 mds.log
>>>>>> SC-1:/var/log/opensaf #
>>>>>>
>>>>>> ============================================================================================================
>>>>>>  
>>>>>>
>>>>>>
>>>>>> -AVM
>>>>>>
>>>>>>
>>>>>>
>>>>>> On 2/15/2017 2:58 PM, Anders Widell wrote:
>>>>>>> src/dtm/Makefile.am |   7 ++-
>>>>>>>   src/dtm/transport/log_server.cc            |   6 +-
>>>>>>>   src/dtm/transport/log_writer.cc            |  15 +----
>>>>>>>   src/dtm/transport/log_writer.h             |   3 +-
>>>>>>>   src/dtm/transport/tests/log_writer_test.cc |  75 
>>>>>>> ++++++++++++++++++++++++++++++
>>>>>>>   5 files changed, 89 insertions(+), 17 deletions(-)
>>>>>>>
>>>>>>>
>>>>>>> Fix a bug in the MDS log server that caused it to overwrite an 
>>>>>>> existing MDS log
>>>>>>> after a node reboot. An existing log file will now be appended.
>>>>>>>
>>>>>>> diff --git a/src/dtm/Makefile.am b/src/dtm/Makefile.am
>>>>>>> --- a/src/dtm/Makefile.am
>>>>>>> +++ b/src/dtm/Makefile.am
>>>>>>> @@ -1,6 +1,7 @@
>>>>>>>   #      -*- OpenSAF  -*-
>>>>>>>   #
>>>>>>>   # (C) Copyright 2016 The OpenSAF Foundation
>>>>>>> +# Copyright Ericsson AB 2017 - All Rights Reserved.
>>>>>>>   #
>>>>>>>   # This program is distributed in the hope that it will be 
>>>>>>> useful, but
>>>>>>>   # WITHOUT ANY WARRANTY; without even the implied warranty of 
>>>>>>> MERCHANTABILITY
>>>>>>> @@ -82,12 +83,14 @@ bin_transport_test_CPPFLAGS = \
>>>>>>>   bin_transport_test_LDFLAGS = \
>>>>>>>       $(AM_LDFLAGS) \
>>>>>>>       src/base/lib_libopensaf_core_la-getenv.lo \
>>>>>>> +    src/dtm/transport/bin_osaftransportd-log_writer.o \
>>>>>>> src/dtm/transport/bin_osaftransportd-transport_monitor.o
>>>>>>>     bin_transport_test_SOURCES = \
>>>>>>> -    src/dtm/transport/tests/transport_monitor_test.cc \
>>>>>>> +    src/dtm/transport/tests/log_writer_test.cc \
>>>>>>>       src/dtm/transport/tests/mock_logtrace.cc \
>>>>>>> -    src/dtm/transport/tests/mock_osaf_poll.cc
>>>>>>> +    src/dtm/transport/tests/mock_osaf_poll.cc \
>>>>>>> +    src/dtm/transport/tests/transport_monitor_test.cc
>>>>>>>     bin_transport_test_LDADD = \
>>>>>>>       $(GTEST_DIR)/lib/libgtest.la \
>>>>>>> diff --git a/src/dtm/transport/log_server.cc 
>>>>>>> b/src/dtm/transport/log_server.cc
>>>>>>> --- a/src/dtm/transport/log_server.cc
>>>>>>> +++ b/src/dtm/transport/log_server.cc
>>>>>>> @@ -1,6 +1,7 @@
>>>>>>>   /*      -*- OpenSAF  -*-
>>>>>>>    *
>>>>>>>    * (C) Copyright 2016 The OpenSAF Foundation
>>>>>>> + * Copyright Ericsson AB 2017 - All Rights Reserved.
>>>>>>>    *
>>>>>>>    * This program is distributed in the hope that it will be 
>>>>>>> useful, but
>>>>>>>    * WITHOUT ANY WARRANTY; without even the implied warranty of 
>>>>>>> MERCHANTABILITY
>>>>>>> @@ -36,8 +37,9 @@ void LogServer::Run() {
>>>>>>>       {term_fd_, POLLIN, 0},
>>>>>>>       {log_socket_.fd(), POLLIN, 0}
>>>>>>>     };
>>>>>>> -  struct timespec last_flush = base::ReadMonotonicClock();
>>>>>>> +  struct timespec last_flush{};
>>>>>>>     do {
>>>>>>> +    if (log_writer_.empty()) last_flush = 
>>>>>>> base::ReadMonotonicClock();
>>>>>>>       for (int i = 0; i < 256; ++i) {
>>>>>>>         char* buffer = log_writer_.current_buffer_position();
>>>>>>>         ssize_t result = log_socket_.Recv(buffer, 
>>>>>>> LogWriter::kMaxMessageSize);
>>>>>>> @@ -57,6 +59,6 @@ void LogServer::Run() {
>>>>>>>       }
>>>>>>>       struct timespec timeout = (last_flush + 
>>>>>>> base::kFifteenSeconds) - current;
>>>>>>>       pfd[1].fd = log_socket_.fd();
>>>>>>> -    osaf_ppoll(pfd, 2, &timeout, nullptr);
>>>>>>> +    osaf_ppoll(pfd, 2, log_writer_.empty() ? nullptr : 
>>>>>>> &timeout, nullptr);
>>>>>>>     } while ((pfd[0].revents & POLLIN) == 0);
>>>>>>>   }
>>>>>>> diff --git a/src/dtm/transport/log_writer.cc 
>>>>>>> b/src/dtm/transport/log_writer.cc
>>>>>>> --- a/src/dtm/transport/log_writer.cc
>>>>>>> +++ b/src/dtm/transport/log_writer.cc
>>>>>>> @@ -1,6 +1,7 @@
>>>>>>>   /*      -*- OpenSAF  -*-
>>>>>>>    *
>>>>>>>    * (C) Copyright 2016 The OpenSAF Foundation
>>>>>>> + * Copyright Ericsson AB 2017 - All Rights Reserved.
>>>>>>>    *
>>>>>>>    * This program is distributed in the hope that it will be 
>>>>>>> useful, but
>>>>>>>    * WITHOUT ANY WARRANTY; without even the implied warranty of 
>>>>>>> MERCHANTABILITY
>>>>>>> @@ -48,8 +49,9 @@ void LogWriter::Open() {
>>>>>>>                   S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | 
>>>>>>> S_IROTH | S_IWOTH);
>>>>>>>       } while (fd == -1 && errno == EINTR);
>>>>>>>       if (fd >= 0) {
>>>>>>> +      off_t seek_result = lseek(fd, 0, SEEK_END);
>>>>>>> +      if (seek_result >= 0) current_file_size_ = seek_result;
>>>>>>>         fd_ = fd;
>>>>>>> -      current_file_size_ = FileSize(fd);
>>>>>>>       }
>>>>>>>     }
>>>>>>>   }
>>>>>>> @@ -98,14 +100,3 @@ void LogWriter::Flush() {
>>>>>>>     }
>>>>>>>     current_file_size_ += bytes_written;
>>>>>>>   }
>>>>>>> -
>>>>>>> -size_t LogWriter::FileSize(int fd) {
>>>>>>> -  struct stat stat_buf;
>>>>>>> -  size_t file_size;
>>>>>>> -  if (fstat(fd, &stat_buf) == 0 && S_ISREG(stat_buf.st_mode) != 
>>>>>>> 0) {
>>>>>>> -    file_size = static_cast<size_t>(stat_buf.st_blocks) * 512;
>>>>>>> -  } else {
>>>>>>> -    file_size = 0;
>>>>>>> -  }
>>>>>>> -  return file_size;
>>>>>>> -}
>>>>>>> diff --git a/src/dtm/transport/log_writer.h 
>>>>>>> b/src/dtm/transport/log_writer.h
>>>>>>> --- a/src/dtm/transport/log_writer.h
>>>>>>> +++ b/src/dtm/transport/log_writer.h
>>>>>>> @@ -1,6 +1,7 @@
>>>>>>>   /*      -*- OpenSAF  -*-
>>>>>>>    *
>>>>>>>    * (C) Copyright 2016 The OpenSAF Foundation
>>>>>>> + * Copyright Ericsson AB 2017 - All Rights Reserved.
>>>>>>>    *
>>>>>>>    * This program is distributed in the hope that it will be 
>>>>>>> useful, but
>>>>>>>    * WITHOUT ANY WARRANTY; without even the implied warranty of 
>>>>>>> MERCHANTABILITY
>>>>>>> @@ -32,6 +33,7 @@ class LogWriter {
>>>>>>>     virtual ~LogWriter();
>>>>>>>       char* current_buffer_position() { return buffer_ + 
>>>>>>> current_buffer_size_; }
>>>>>>> +  bool empty() const { return current_buffer_size_ == 0; }
>>>>>>>       // Write @a size bytes of log message data in the memory 
>>>>>>> pointed to by @a
>>>>>>>     // buffer to the MDS log file. After the log message has 
>>>>>>> been written, the
>>>>>>> @@ -42,7 +44,6 @@ class LogWriter {
>>>>>>>    private:
>>>>>>>     constexpr static const size_t kBufferSize = 128 * size_t{1024};
>>>>>>>     constexpr static const size_t kMaxFileSize = 5000 * 
>>>>>>> size_t{1024};
>>>>>>> -  static size_t FileSize(int fd);
>>>>>>>     void Open();
>>>>>>>     void Close();
>>>>>>>     void RotateLog();
>>>>>>> diff --git a/src/dtm/transport/tests/log_writer_test.cc 
>>>>>>> b/src/dtm/transport/tests/log_writer_test.cc
>>>>>>> new file mode 100644
>>>>>>> --- /dev/null
>>>>>>> +++ b/src/dtm/transport/tests/log_writer_test.cc
>>>>>>> @@ -0,0 +1,75 @@
>>>>>>> +/*      -*- OpenSAF  -*-
>>>>>>> + *
>>>>>>> + * Copyright Ericsson AB 2017 - All Rights Reserved.
>>>>>>> + *
>>>>>>> + * This program is distributed in the hope that it will be 
>>>>>>> useful, but
>>>>>>> + * WITHOUT ANY WARRANTY; without even the implied warranty of 
>>>>>>> MERCHANTABILITY
>>>>>>> + * or FITNESS FOR A PARTICULAR PURPOSE. This file and program 
>>>>>>> are licensed
>>>>>>> + * under the GNU Lesser General Public License Version 2.1, 
>>>>>>> February 1999.
>>>>>>> + * The complete license can be accessed from the following 
>>>>>>> location:
>>>>>>> + * http://opensource.org/licenses/lgpl-license.php
>>>>>>> + * See the Copying file included with the OpenSAF distribution 
>>>>>>> for full
>>>>>>> + * licensing terms.
>>>>>>> + *
>>>>>>> + */
>>>>>>> +
>>>>>>> +#include <cstdlib>
>>>>>>> +#include <cstring>
>>>>>>> +#include <fstream>
>>>>>>> +#include <string>
>>>>>>> +#include "dtm/transport/log_writer.h"
>>>>>>> +#include "gtest/gtest.h"
>>>>>>> +
>>>>>>> +class LogWriterTest : public ::testing::Test {
>>>>>>> + protected:
>>>>>>> +  LogWriterTest() :
>>>>>>> +      tmpdir_{} {
>>>>>>> +  }
>>>>>>> +
>>>>>>> +  virtual ~LogWriterTest() {
>>>>>>> +  }
>>>>>>> +
>>>>>>> +  virtual void SetUp() {
>>>>>>> +    char tmpdir[] = "/tmp/log_writer_test_XXXXXX";
>>>>>>> +    char* result = mkdtemp(tmpdir);
>>>>>>> +    ASSERT_NE(result, nullptr);
>>>>>>> +    tmpdir_ = result;
>>>>>>> +    int retval = setenv("pkglogdir", tmpdir_.c_str(), 1);
>>>>>>> +    ASSERT_EQ(retval, 0);
>>>>>>> +  }
>>>>>>> +
>>>>>>> +  virtual void TearDown() {
>>>>>>> +    std::string cmd = std::string("rm -f ") + tmpdir_ + 
>>>>>>> std::string("/*");
>>>>>>> +    int result = system(cmd.c_str());
>>>>>>> +    ASSERT_EQ(result, 0);
>>>>>>> +    result = rmdir(tmpdir_.c_str());
>>>>>>> +    ASSERT_EQ(result, 0);
>>>>>>> +    result = unsetenv("pkglogdir");
>>>>>>> +    ASSERT_EQ(result, 0);
>>>>>>> +  }
>>>>>>> +
>>>>>>> +  std::string tmpdir_;
>>>>>>> +};
>>>>>>> +
>>>>>>> +TEST_F(LogWriterTest, ExistingFileShouldBeAppended) {
>>>>>>> +  const char first_line[] = "first line";
>>>>>>> +  const char second_line[] = "second line";
>>>>>>> +  std::ofstream ostr(tmpdir_ + std::string("/mds.log"));
>>>>>>> +  ostr << first_line << std::endl;
>>>>>>> +  ostr.close();
>>>>>>> +  LogWriter* log_writer = new LogWriter();
>>>>>>> +  memcpy(log_writer->current_buffer_position(), second_line,
>>>>>>> +         sizeof(second_line) - 1);
>>>>>>> + log_writer->current_buffer_position()[sizeof(second_line) - 1] 
>>>>>>> = '\n';
>>>>>>> +  log_writer->Write(sizeof(second_line));
>>>>>>> +  delete log_writer;
>>>>>>> +  std::ifstream istr(tmpdir_ + std::string("/mds.log"));
>>>>>>> +  std::string line1;
>>>>>>> +  std::string line2;
>>>>>>> +  std::getline(istr, line1);
>>>>>>> +  EXPECT_FALSE(istr.fail());
>>>>>>> +  std::getline(istr, line2);
>>>>>>> +  EXPECT_FALSE(istr.fail());
>>>>>>> +  EXPECT_EQ(line1, std::string(first_line));
>>>>>>> +  EXPECT_EQ(line2, std::string(second_line));
>>>>>>> +}
>>>>>>
>>>>>
>>>>
>>>
>>
>


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