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Bug #13702112 : WAIT_FOR_READ IS STUCK IN THE 90S

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rb://1334
approved by: Inaam Rana
This commit is contained in:
Yasufumi Kinoshita 2012-10-17 15:28:31 +09:00
parent c55dd6bd4a
commit f8bae00ab1
1 changed files with 4 additions and 3 deletions
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7
storage/innodb_plugin/buf/buf0buf.c
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@ -241,7 +241,7 @@ the read requests for the whole area.
#ifndef UNIV_HOTBACKUP
/** Value in microseconds */
static const int WAIT_FOR_READ = 5000;
static const int WAIT_FOR_READ = 100;
/** Number of attemtps made to read in a page in the buffer pool */
static const ulint BUF_PAGE_READ_MAX_RETRIES = 100;
@ -1897,8 +1897,9 @@ wait_until_unfixed:
mutex_exit(&block->mutex);
if (io_fix == BUF_IO_READ) {
os_thread_sleep(WAIT_FOR_READ);
/* wait by temporaly s-latch */
rw_lock_s_lock(&(block->lock));
rw_lock_s_unlock(&(block->lock));
} else {
break;
}