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wait for all locks to be free when updating schema

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This commit is contained in:
Clint Armstrong
2015-07-22 08:09:19 -04:00
parent 777d5d6c6f
commit 1379a13c76
1 changed files with 5 additions and 1 deletions
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6
includes/sql-schema/update.php
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@ -34,7 +34,11 @@ if (!isset($debug)) {
if (!dbGetLock('schema_update')) { if (!dbGetLock('schema_update')) {
echo "Schema update already in progress. Exiting"; echo "Schema update already in progress. Exiting";
exit(1); exit(1);
} } //end if
do {
sleep(1);
} while (@dbFetchCell('SELECT COUNT(*) FROM `devices` WHERE NOT IS_FREE_LOCK(CONCAT("polling.", device_id)) OR NOT IS_FREE_LOCK(CONCAT("queued.", device_id)) OR NOT IS_FREE_LOCK(CONCAT("discovering.", device_id))') > 0);
$insert = 0; $insert = 0;