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76 lines
1.9 KiB
Bash
Executable File
76 lines
1.9 KiB
Bash
Executable File
#!/bin/sh
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#
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# you dont need to stop synapse.
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#
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# from: https://jo-so.de/2018-03/Matrix.html#state_groups_stateaufrumen
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#
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# this script used:
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# https://github.com/matrix-org/rust-synapse-compress-state
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#
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## start task via:
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# $ sudo systemd-run --nice=4 -pCPUSchedulingPolicy=batch \
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# -pIOSchedulingClass=idle --uid=matrix-synapse --collect \
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# --unit=synapse-clear-state ~/bin/synapse_clear_state
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#
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## watch task-log via:
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# $ journalctl -Stoday -u synapse-clear-state -f
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#
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set -e -u
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username='matrix'
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db='matrix'
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conn_str="host=localhost user=$username dbname=$db application_name=state_compress"
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###
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export RUST_BACKTRACE=short LC_ALL=C.UTF-8
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if which time >/dev/null
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then
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export TIME='%E elapsed %M rss'
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time=time
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else
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time=
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fi
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cd "$(mktemp -d)"
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echo "Writing SQL files to $PWD"
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if [ $# -eq 0 ]
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then
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set -- $(psql -X -t -A -U "$username" -c 'SELECT room_id FROM state_groups
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GROUP BY room_id ORDER BY count(*)' $db)
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fi
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echo 'Disabling autovacuum on state_groups_state'
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psql -X -q -b -U "$username" -c 'alter table state_groups_state set (autovacuum_enabled = false);' $db
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no=0
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for room in $*
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do
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echo '--------------------'
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echo
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sql_file=state-compress-$((no += 1)).sql
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echo "Writing SQL commands to $sql_file"
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$time synapse_compress_state -t -p "$conn_str" -o "$sql_file" -r "$room" -m 1000
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if test -s "$sql_file"
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then
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$time psql -X -q -b -U "$username" -c '\set ON_ERROR_STOP on' -f "$sql_file" $db
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else
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rm "$sql_file"
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fi
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done
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echo 'Enabling autovacuum on state_groups_state'
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psql -X -q -b -U "$username" -c 'alter table state_groups_state set (autovacuum_enabled = true);' $db
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echo 'Running VACUUM and ANALYZE for state_groups_state ...'
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$time psql -X -q -b -U "$username" -c 'VACUUM FULL ANALYZE state_groups_state' $db
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echo "All SQL scripts are in $PWD"
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exit 0
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