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MDEV-33620 Improve times and states in show processlist for replication
This will makes it easier to find out what replication workers are doing and what they are waiting for. Things changed in processlist: - Slave_SQL time was not consistent. Now time for state "Slave has read all relay log; waiting for more updates" shows how long it has waited for getting the next event. - Slave_worker threads did often show "Closing tables" for a long time. Now the state is reverted to the previous state after "Closing tables" is done. - Commit and Rollback states where not shown for replication (and some other threads). Now Commit and Rollback states are always shown and the state is reverted to previous state when the Commit/Rollback have finished. Code changes: - Added thd->set_time_for_next_stage() for parallel replication when when starting to wait for prior transactions to commit, group commit, and FTWRL and for free space in thread pool. Before we reset the time only after the above events. - Moved THD_STAGE_INFO(stage_rollback) and THD_STAGE_INFO(stage_commit) from sql_parse.cc to transaction.cc to ensure this is done for all commits and not only 'normal connection queries'. Test case changes: - close_thread_tables() reverting stage to previous stage caused the counter in performance_schema to be increased. In many case it is the 'sql/starting' stage that was effected. - We only change to "Commit" stage if there is a need for a commit. This caused some "Commit" stages to disapper from perfschema reports. TODO in 11.#: - Slave_IO always showes "Waiting for master to send event" and the time is from SLAVE START. We should in 11.# change this to be the time since reading the last event.
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Monty
@ -128,8 +128,8 @@ relative_event_id relative_end_event_id event_name comment nesting_event_type re
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11 11 stage/sql/Executing (stage) STATEMENT 0
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12 12 stage/sql/End of update loop (stage) STATEMENT 0
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13 13 stage/sql/Query end (stage) STATEMENT 0
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14 14 stage/sql/Commit (stage) STATEMENT 0
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15 15 stage/sql/closing tables (stage) STATEMENT 0
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14 14 stage/sql/closing tables (stage) STATEMENT 0
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15 15 stage/sql/Query end (stage) STATEMENT 0
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16 16 stage/sql/Starting cleanup (stage) STATEMENT 0
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17 17 stage/sql/Freeing items (stage) STATEMENT 0
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18 18 wait/io/socket/sql/client_connection send STATEMENT 0
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@ -152,8 +152,8 @@ relative_event_id relative_end_event_id event_name comment nesting_event_type re
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35 35 stage/sql/Executing (stage) STATEMENT 24
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36 36 stage/sql/End of update loop (stage) STATEMENT 24
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37 37 stage/sql/Query end (stage) STATEMENT 24
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38 38 stage/sql/Commit (stage) STATEMENT 24
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39 39 stage/sql/closing tables (stage) STATEMENT 24
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38 38 stage/sql/closing tables (stage) STATEMENT 24
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39 39 stage/sql/Query end (stage) STATEMENT 24
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40 40 stage/sql/Starting cleanup (stage) STATEMENT 24
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41 41 stage/sql/Freeing items (stage) STATEMENT 24
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42 42 wait/io/socket/sql/client_connection send STATEMENT 24
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@ -176,8 +176,8 @@ relative_event_id relative_end_event_id event_name comment nesting_event_type re
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59 59 stage/sql/Executing (stage) STATEMENT 48
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60 60 stage/sql/End of update loop (stage) STATEMENT 48
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61 61 stage/sql/Query end (stage) STATEMENT 48
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62 62 stage/sql/Commit (stage) STATEMENT 48
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63 63 stage/sql/closing tables (stage) STATEMENT 48
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62 62 stage/sql/closing tables (stage) STATEMENT 48
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63 63 stage/sql/Query end (stage) STATEMENT 48
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64 64 stage/sql/Starting cleanup (stage) STATEMENT 48
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65 65 stage/sql/Freeing items (stage) STATEMENT 48
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66 66 wait/io/socket/sql/client_connection send STATEMENT 48
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@ -203,8 +203,8 @@ select "With a third part to make things complete" as payload NULL NULL
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84 84 stage/sql/Executing (stage) STATEMENT 72
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85 85 stage/sql/End of update loop (stage) STATEMENT 72
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86 86 stage/sql/Query end (stage) STATEMENT 72
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87 87 stage/sql/Commit (stage) STATEMENT 72
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88 88 stage/sql/closing tables (stage) STATEMENT 72
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87 87 stage/sql/closing tables (stage) STATEMENT 72
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88 88 stage/sql/Query end (stage) STATEMENT 72
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89 89 stage/sql/Starting cleanup (stage) STATEMENT 72
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90 92 stage/sql/Freeing items (stage) STATEMENT 72
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91 91 wait/io/socket/sql/client_connection send STAGE 90
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@ -222,8 +222,8 @@ select "With a third part to make things complete" as payload NULL NULL
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102 102 stage/sql/Executing (stage) STATEMENT 93
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103 103 stage/sql/End of update loop (stage) STATEMENT 93
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104 104 stage/sql/Query end (stage) STATEMENT 93
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105 105 stage/sql/Commit (stage) STATEMENT 93
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106 106 stage/sql/closing tables (stage) STATEMENT 93
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105 105 stage/sql/closing tables (stage) STATEMENT 93
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106 106 stage/sql/Query end (stage) STATEMENT 93
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107 107 stage/sql/Starting cleanup (stage) STATEMENT 93
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108 110 stage/sql/Freeing items (stage) STATEMENT 93
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109 109 wait/io/socket/sql/client_connection send STAGE 108
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@ -239,8 +239,8 @@ select "With a third part to make things complete" as payload NULL NULL
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119 119 stage/sql/Executing (stage) STATEMENT 111
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120 120 stage/sql/End of update loop (stage) STATEMENT 111
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121 121 stage/sql/Query end (stage) STATEMENT 111
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122 122 stage/sql/Commit (stage) STATEMENT 111
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123 123 stage/sql/closing tables (stage) STATEMENT 111
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122 122 stage/sql/closing tables (stage) STATEMENT 111
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123 123 stage/sql/Query end (stage) STATEMENT 111
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124 124 stage/sql/Starting cleanup (stage) STATEMENT 111
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125 125 stage/sql/Freeing items (stage) STATEMENT 111
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126 126 wait/io/socket/sql/client_connection send STATEMENT 111
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@ -263,8 +263,8 @@ select "With a third part to make things complete" as payload NULL NULL
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143 143 stage/sql/Executing (stage) STATEMENT 132
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144 144 stage/sql/End of update loop (stage) STATEMENT 132
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145 145 stage/sql/Query end (stage) STATEMENT 132
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146 146 stage/sql/Commit (stage) STATEMENT 132
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147 147 stage/sql/closing tables (stage) STATEMENT 132
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146 146 stage/sql/closing tables (stage) STATEMENT 132
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147 147 stage/sql/Query end (stage) STATEMENT 132
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148 148 stage/sql/Starting cleanup (stage) STATEMENT 132
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149 149 stage/sql/Freeing items (stage) STATEMENT 132
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150 150 wait/io/socket/sql/client_connection send STATEMENT 132
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