Locks are important for maintaining concurrency in the Db2 environment. However, locks might cause several types of contention situations that degrade Db2 performance, including suspension, timeout, and deadlock.
There is a deadlock in the resource manager database in the RMTRACKING table. Action You must have the DB2_RR_TO_RS=YES registry variable set in Db2®.
分别是trx->n_mysql_tables_in_use,trx->mysql_n_tables_lockedLOCK WAIT/**表示事务状态处于锁等待**/2 lock struct(s)/**表示此事务中的锁结构数目**/, heap size 360/**代表内存堆的byte长度**/, 1 row lock(s)/**是锁了一行**/MySQL thread id8760/**对应的操作系统的线程结构(pthread_t)*...
SYS@oraLHRDB2> SELECT A.INDX, 2 A.KSPPINM NAME, 3 A.KSPPDESC, 4 B.KSPPSTVL 5 FROM X$KSPPI A, 6 X$KSPPCV B 7 WHERE A.INDX = B.INDX 8 AND LOWER(A.KSPPINM) LIKE LOWER('%&PARAMETER%'); ENTER VALUE FOR PARAMETER:_lm_dd_interval OLD 8: AND LOWER(A.KSPPINM) LIKE ...
使用disruptor后,并发导致的问题,报错信息如下: [2019-01-17 16:53:27] [pool-3-thread-4] [INFO] [org.springframework.jdbc.support.SQLErrorCodesFactory] [org.springframework.jdbc.support.SQLErrorCodesFactory:127] - SQLErrorCodes loaded: [DB2, Derby, H2, HS
I don't believe it would deadlock if it was a serial plan. I haven't had chance to search in vkb yet but feel this one is more fishing like a bug, please let me know if I am wrong again.Here is the deadlock graph from the errorlog, hope will fit in this text box:2007-02-...
Description When you hit the SCRAPER_SLOT_MAX_ACTIVE_SIZE requests stop being processed silently with no warning. If you are deferring items in a pipeline that depend on other requests finishing before completing then you can get into a ...
Privacy Statement:https://www.ovirt.org/privacy-policy.htmloVirt Code of Conduct:https://www.ovirt.org/community/about/community-guidelines/List Archives:https://lists.ovirt.org/archives/list/users@ovirt.org/message/PUHUX7PS36N7CQJDB2PDIDVBBLAQ5WUP/...
Db2z在出现deadlock/timeout的时候,不会主动take一个dump,而是会抛出DSNT375I/DSNT500I或者DSNT376I/DSNT500I这样的消息对来说明情况,如果要分析deadlock/timeout原因,就需要精确地set一个slip,去生成dump 可以根据MEPL,找到DSNILMCL可能出TIMEOUT的地方,算出range,写出如下slip 如果R8是be... ...
You need to look in the DB2 log for whatever platform you are on, and there should be messages in there to indicate what is attempting to acquire the table, and what is holding it. Obviously your tran is attempting to acquire, but you will need to look at the other tran, whatever ...