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Thomas Heigl commented on WICKET-6177: -------------------------------------- It fails with: {code} 16816 [read] ERR o.a.w.p.memory.HttpSessionDataStore - Cannot store the data for page with id '2' in session with id '528610207C4F0751CA70F4B34DB75DBE' {code} The code in {{HttpSessionDataStore}}: {code} @Override public void storeData(String sessionId, int pageId, byte[] pageAsBytes) { PageTable pageTable = getPageTable(true, true); if (pageTable != null) { pageTable.storePage(pageId, pageAsBytes); if (LOG.isDebugEnabled()) { LOG.debug("Stored '{}' bytes for page '{}' in session '{}'", pageAsBytes.length, pageId, sessionId); } evictionStrategy.evict(pageTable); } else { LOG.error("Cannot store the data for page with id '{}' in session with id '{}'", pageId, sessionId); } } {code} It tries to get the page table from a session attribute and the session is not available after asynchronous serialization. > Blocking page serialization > --------------------------- > > Key: WICKET-6177 > URL: https://issues.apache.org/jira/browse/WICKET-6177 > Project: Wicket > Issue Type: Bug > Components: wicket > Affects Versions: 7.4.0 > Environment: any > Reporter: Martin Makundi > Labels: serialization > Attachments: 6177.tgz, Wicket_Quickstart_7.zip > > Original Estimate: 168h > Remaining Estimate: 168h > > We have a performance issue with our Wicket app, page serialization causes > inconvenience to user because PageStoreManager.storeTouchedPages() blocks the > request until pageSerializer.serialize(page) has been handled. > Could this be solved by serializing the page in a separate thread and let the > request complete? > The problem we have is that user is making quick small ajax modifications to > the page but serialization + network latency makes the delay very > inconvenient. If serialization could be done in separate thread, user would > feel only the network delay which is bearable. -- This message was sent by Atlassian JIRA (v6.3.15#6346)