Commit 989e682b authored by Marc Alff's avatar Marc Alff

Local merge

parents ea35bf7a 9c5e4362
This diff is collapsed.
...@@ -16,6 +16,7 @@ operation, number_of_bytes, ...@@ -16,6 +16,7 @@ operation, number_of_bytes,
substring(object_name, locate("no_index_tab", object_name)) as short_name substring(object_name, locate("no_index_tab", object_name)) as short_name
from performance_schema.events_waits_history_long from performance_schema.events_waits_history_long
where operation not like "tell" where operation not like "tell"
and event_name like "wait/io/file/myisam/%"
order by thread_id, event_id; order by thread_id, event_id;
event_name short_source operation number_of_bytes short_name event_name short_source operation number_of_bytes short_name
wait/io/file/myisam/kfile mi_create.c: create NULL no_index_tab.MYI wait/io/file/myisam/kfile mi_create.c: create NULL no_index_tab.MYI
......
...@@ -46,6 +46,13 @@ insert into no_index_tab set a = 'foo', b = 1; ...@@ -46,6 +46,13 @@ insert into no_index_tab set a = 'foo', b = 1;
# Verification # Verification
# Note that mi_create.c contains mysql_file_tell() calls in debug only, # Note that mi_create.c contains mysql_file_tell() calls in debug only,
# so the result are filtered to remove 'tell'. # so the result are filtered to remove 'tell'.
# Note that even after setting other instruments to enabled='NO'
# and truncating the events_waits_history_long table,
# some events -- that were already started but not completed --
# for other instruments could still be added in the history.
# To protect against that, an extra where clause
# "and event_name like "wait/io/file/myisam/%"
# is added to the select to filter out the result.
select event_name, select event_name,
left(source, locate(":", source)) as short_source, left(source, locate(":", source)) as short_source,
...@@ -53,6 +60,7 @@ select event_name, ...@@ -53,6 +60,7 @@ select event_name,
substring(object_name, locate("no_index_tab", object_name)) as short_name substring(object_name, locate("no_index_tab", object_name)) as short_name
from performance_schema.events_waits_history_long from performance_schema.events_waits_history_long
where operation not like "tell" where operation not like "tell"
and event_name like "wait/io/file/myisam/%"
order by thread_id, event_id; order by thread_id, event_id;
# In case of failures, this will tell if file io are lost. # In case of failures, this will tell if file io are lost.
......
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