Hi,
I'm using ofbiz release10.04@1072382 with MySQL database server (with
default settings).

Of late I have been observing lots of 'lock wait time out' exceptions in
the logs primarily while the system is trying to update entity OrderHeader.

If anyone has any suggestions please do share.

Below is the portion of the exception trace -

2012-05-01 18:51:34,865 [ERROR] SQL Exception while executing the
following: UPDATE ORDER_HEADER SET ORDER_TYPE_ID=?, ORDER_NAME=?,
EXTERNAL_ID=?, SALES_CHANNEL_ENUM_ID=?, ORDER_DATE=?, PRIORITY=?,
ENTRY_DATE=?, PICK_SHEET_PRINTED_DATE=?, VISIT_ID=?, STATUS_ID=?,
CREATED_BY=?, FIRST_ATTEMPT_ORDER_ID=?, CURRENCY_UOM=?, SYNC_STATUS_ID=?,
BILLING_ACCOUNT_ID=?, ORIGIN_FACILITY_ID=?, WEB_SITE_ID=?,
PRODUCT_STORE_ID=?, TERMINAL_ID=?, TRANSACTION_ID=?,
AUTO_ORDER_SHOPPING_LIST_ID=?, NEEDS_INVENTORY_ISSUANCE=?, IS_RUSH_ORDER=?,
INTERNAL_CODE=?, REMAINING_SUB_TOTAL=?, GRAND_TOTAL=?, IS_VIEWED=?,
LAST_UPDATED_STAMP=?, LAST_UPDATED_TX_STAMP=?, CREATED_STAMP=?,
CREATED_TX_STAMP=? WHERE ORDER_ID=?
2012-05-01 18:51:34,867 [ERROR] Error while updating
[GenericEntity:OrderHeader][autoOrderShoppingListId,null()][billingAccountId,null()][createdBy,admin(java.lang.String)][createdStamp,2012-05-01
18:48:57.0(java.sql.Timestamp)][createdTxStamp,2012-05-01
18:48:57.0(java.sql.Timestamp)][currencyUom,USD(java.lang.String)][entryDate,2012-05-01
18:48:57.0(java.sql.Timestamp)][externalId,null()][firstAttemptOrderId,null()][grandTotal,72.00(java.math.BigDecimal)][internalCode,null()][isRushOrder,null()][isViewed,null()][lastUpdatedStamp,2012-05-01
18:50:43.297(java.sql.Timestamp)][lastUpdatedTxStamp,2012-05-01
18:50:42.078(java.sql.Timestamp)][needsInventoryIssuance,null()][orderDate,2012-05-01
18:48:57.0(java.sql.Timestamp)][orderId,SE11510(java.lang.String)][orderName,Test
Order(java.lang.String)][orderTypeId,SALES_ORDER(java.lang.String)][originFacilityId,null()][pickSheetPrintedDate,null()][priority,2(java.lang.String)][productStoreId,9000(java.lang.String)][remainingSubTotal,72.00(java.math.BigDecimal)][salesChannelEnumId,WEB_SALES_CHANNEL(java.lang.String)][statusId,ORDER_COMPLETED(java.lang.String)][syncStatusId,null()][terminalId,null()][transactionId,null()][visitId,5171(java.lang.String)][webSiteId,OrderEntry(java.lang.String)]
2012-05-01 18:51:34,869 [ERROR]
---- exception report
----------------------------------------------------------
Failure in store operation for entity [OrderHeader]:
org.ofbiz.entity.GenericEntityException: Error while updating OrderHeader
(SQL Exception: (Lock wait timeout exceeded; try restarting transaction)).
Rolling back transaction.
Exception: org.ofbiz.entity.GenericEntityException
Message: Error while updating OrderHeader (SQL Exception: (Lock wait
timeout exceeded; try restarting transaction))
---- cause
---------------------------------------------------------------------
Exception: org.ofbiz.entity.GenericDataSourceException
Message: SQL Exception: (Lock wait timeout exceeded; try restarting
transaction)
---- cause
---------------------------------------------------------------------
Exception: java.sql.SQLException
Message: Lock wait timeout exceeded; try restarting transaction

-- 
Regards,
Varun Bhansaly

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