[infinispan-issues] [JBoss JIRA] (ISPN-7526) Write skew check throws even if the previous value was not read

[ https://issues.jboss.org/browse/ISPN-7526?page=com.atlassian.jira.plugin.... ] Radim Vansa commented on ISPN-7526: ----------------------------------- [~dan.berindei] I think that write skew check should check that *preconditions* of the transaction did not changed, rather than any concurrent update to the value. If the transactions were serialized, the update could happen just before the transaction starts/read is executed. However, the situation is even worse when the key is non-local: this test fails: {code:java} final Object key = new MagicKey("ignore-return-value", cache(0)); final AdvancedCache<Object, Object> c = advancedCache(1); final TransactionManager tm = tm(1); cache(0).put(key, "init"); tm.begin(); c.getAdvancedCache().withFlags(Flag.IGNORE_RETURN_VALUES).put(key, "v1"); c.replace(key, "v1", "v2"); tm.commit(); // throws WSCE {code} because the replace command is not forced to retrieve the remote entry (the value is already cached in context). Therefore, the seen version for WSC is a non-existent version, which does not match the actual version. There are two ways to fix this: a) don't do the check as we haven't seen any version b) force remote read with {{IGNORE_RETURN_VALUES}} if the entry is not yet in the context. -- This message was sent by Atlassian JIRA (v7.2.3#72005)