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MDEV-20220: Merge 5.7 P_S replication table 'replication_applier_status_by_worker

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Step1:
=====
Backport 'replication_applier_status_by_worker' from upstream.

Iterate through rpl_parallel_thread_pool and display slave worker thread
specific information as part of 'replication_applier_status_by_worker'
table.

---------------------------------------------------------------------------
|Column Name:           |        Description:                             |
|-------------------------------------------------------------------------|
|                       |                                                 |
|CHANNEL_NAME           | Name of replication channel through which the   |
|                       | transaction is received.                        |
|                       |                                                 |
|THREAD_ID              | Thread_Id as displayed in 'performance_schema.  |
|                       | threads' table for thread with name             |
|                       | 'thread/sql/rpl_parallel_thread'                |
|                       |                                                 |
|                       | THREAD_ID will be NULL when worker threads are  |
|                       | stopped due to an error/force stop              |
|                       |                                                 |
|SERVICE_STATE          | Thread is running or not                        |
|                       |                                                 |
|LAST_SEEN_TRANSACTION  | Last GTID executed by worker                    |
|                       |                                                 |
|LAST_ERROR_NUMBER      | Last Error that occured on a particular worker  |
|                       |                                                 |
|LAST_ERROR_MESSAGE     | Last error specific message                     |
|                       |                                                 |
|LAST_ERROR_TIMESTAMP   | Time stamp of last error                        |
|                       |                                                 |
---------------------------------------------------------------------------

CHANNEL_NAME will be empty when the worker has not processed any
transaction. Channel_name points to valid source channel_name when it is
processing a transaction/event group.
This commit is contained in:
Sujatha
2021-04-08 15:49:32 +05:30
parent 7c524d4414
commit 94f1d0f84d
18 changed files with 565 additions and 289 deletions
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24
sql/rpl_reporting.h
View File

@@ -41,6 +41,7 @@ public:
@param thread_name Printable name of the slave thread that is reporting.
*/
Slave_reporting_capability(char const *thread_name);
mutable my_thread_id err_thread_id;
/**
Writes a message and, if it's an error message, to Last_Error
@@ -81,12 +82,35 @@ public:
{
number= 0;
message[0]= '\0';
timestamp[0]= '\0';
}
void update_timestamp()
{
struct tm tm_tmp;
struct tm *start;
skr= my_time(0);
localtime_r(&skr, &tm_tmp);
start=&tm_tmp;
sprintf(timestamp, "%02d%02d%02d %02d:%02d:%02d",
start->tm_year % 100,
start->tm_mon+1,
start->tm_mday,
start->tm_hour,
start->tm_min,
start->tm_sec);
timestamp[15]= '\0';
}
/** Error code */
uint32 number;
/** Error message */
char message[MAX_SLAVE_ERRMSG];
/** Error timestamp as string */
char timestamp[64];
/** Error timestamp as time_t variable. Used in performance_schema */
time_t skr;
};
Error const& last_error() const { return m_last_error; }