a2idx: Turns an ASCII character into an index (a=1, b=2, etc)
a2zidx: Turns an ASCII character into a 0-index (a=0, b=1, etc)
dim2idx: Turns dimensions (eg row, column, rack-unit) into an index
skip: Return an index where some items are 'skipped'
ipadd: Add a value to an IP address
This patch add trace log for the db access. Currently support
5 log levels:
- 0: disable the trace log for db.
- 1: trace the calls of database subroutines.
- 2: trace the event to build the cache for the table
- 3: trace the event with cache hit
- 4: trace the SQL statement
implement-feature: #3612
Output example from xcat/cluster.log:
···
Aug 9 01:59:15 c910f05c01bc02k74 xcat[694]: [DB Trace]: {"msg":{"table":"site","method":"xCAT::Table::setAttribs"},"type":"end","elapsed":"0.00176s"}
Aug 9 01:59:15 c910f05c01bc02k74 xcat[694]: [DB Trace]: {"msg":{"table":"site","method":"xCAT::Table::setAttribs"},"type":"start"}
Aug 9 01:59:15 c910f05c01bc02k74 xcat[694]: [DB Trace]: {"msg":{"addon":"SELECT * FROM site WHERE \"value\" = ? AND \"comments\" = ? AND \"disable\" = ? AND \"key\" = ?","table":"site","method":"xCAT::Table::setAttribs"},"type":"start_sql"}
Aug 9 01:59:15 c910f05c01bc02k74 xcat[694]: [DB Trace]: {"msg":{"table":"site","method":"xCAT::Table::setAttribs"},"type":"end_sql","elapsed":"0.00043s"}
Aug 9 01:59:15 c910f05c01bc02k74 xcat[694]: [DB Trace]: {"msg":{"addon":"INSERT INTO site (\"value\",\"comments\",\"key\",\"disable\") VALUES (?,?,?,?)","table":"site","method":"xCAT::Table::setAttribs"},"type":"start_sql"}
Aug 9 01:59:15 c910f05c01bc02k74 xcat[694]: [DB Trace]: {"msg":{"addon":"INSERT INTO site (\"value\",\"comments\",\"key\",\"disable\") VALUES (?,?,?,?)","table":"site","method":"xCAT::Table::setAttribs"},"type":"end_sql","elapsed":"0.00043s"}
Aug 9 01:59:15 c910f05c01bc02k74 xcat[694]: [DB Trace]: {"msg":{"table":"site","method":"xCAT::Table::setAttribs"},"type":"end","elapsed":"0.00171s"}
Aug 9 01:59:15 c910f05c01bc02k74 xcat[694]: [DB Trace]: {"msg":{"table":"site","method":"xCAT::Table::getAttribs"},"type":"start"}
Aug 9 01:59:15 c910f05c01bc02k74 xcat[694]: [DB Trace]: {"msg":{"addon":"SELECT * FROM site WHERE \"key\" = ? and (\"disable\" is NULL or \"disable\" in ('0','no','NO','No','nO'))","table":"site","method":"xCAT::Table::getAttribs"},"type":"start_sql"}
Aug 9 01:59:15 c910f05c01bc02k74 xcat[694]: [DB Trace]: {"msg":{"table":"site","method":"xCAT::Table::getAttribs"},"type":"end_sql","elapsed":"0.00061s"}
Aug 9 01:59:15 c910f05c01bc02k74 xcat[694]: [DB Trace]: {"msg":{"table":"site","method":"xCAT::Table::getAttribs"},"type":"end","elapsed":"0.00125s"}
Aug 9 01:59:19 c910f05c01bc02k74 xcat[694]: [DB Trace]: {"msg":{"table":"site","method":"xCAT::Table::getAllAttribs"},"type":"start"}
Aug 9 01:59:19 c910f05c01bc02k74 xcat[694]: [DB Trace]: {"msg":{"addon":"SELECT * FROM site WHERE \"disable\" is NULL or \"disable\" in ('0','no','NO','No','nO')","table":"site","method":"xCAT::Table::getAllAttribs"},"type":"start_sql"}
Aug 9 01:59:19 c910f05c01bc02k74 xcat[694]: [DB Trace]: {"msg":{"addon":"SELECT * FROM site WHERE \"disable\" is NULL or \"disable\" in ('0','no','NO','No','nO')","table":"site","method":"xCAT::Table::getAllAttribs"},"type":"end_sql","elapsed":"0.00080s"}
···
As `get_site_attribute` subroutine could not cache the value for
hierarchicalattrs configuration, this commit move the check logic of
`hierarchicalattrs` from `getNodeAttribs_nosub_returnany` to `getNodesAttribs`
and `getAllNodeAttribs` to optimize the the performance of bulk query.
After testing, this change will bring 50% performance improvement for
`getNodesAttribs` subroutine.
As the attribute value in the nics table can not match the regular
expresion format supported by the table library, this patch add the
logic in the def utils to handle the regular expresion.
close-issue: #2412
As history reasons, null value is always set within the composite primary
keys, this patch is just a work aroud for the issue encountered on postgres.
Correct fix is to report error to the client side, but too much error handler
is missing in xcat code
close-issue: #2037
close-issue: #2007
$dbworkerpid = -1 db process has not been started,
access db in direct access mode.
$dbworkerpid == 0 db process itself.
$dbworkerpid >0 db process is started, access db in cache mode.
This patch add check method to wait for the DB process in xcatd.
Enhance the close method in Table.pm to disable the undef operation
for nodelist in DB process as the reference has already been cached
as a weak reference.
close-issue: #1011
This patch add changes to detect the error and enter in direct db access
mode so that the other process can access the data without db access
process temporarily. Direct access is not suggested way and currently
nodelist (noderange) can not support this mode.
Partial issue: #537
Still avoid *rebuilding* the cache, as in the use_cache not set suggests a mass amount of setAttribs and build_cache(1) would be extremely expensive,
just force the next consumer after the set to take the hit
git-svn-id: https://svn.code.sf.net/p/xcat/code/xcat-core/trunk@14001 8638fb3e-16cb-4fca-ae20-7b5d299a9bcd
