如何解析zk中的ToBeAppliedRequestProcessor

这期内容当中小编将会给大家带来有关如何解析zk中的ToBeAppliedRequestProcessor，文章内容丰富且以专业的角度为大家分析和叙述，阅读完这篇文章希望大家可以有所收获。

ToBeAppliedRequestProcessor在Leader中

在已处理事务和最后处理事务处理器之间，处理器链上下一个是FinalRequestProcessor

public void processRequest(Request request) throws RequestProcessorException {    next.processRequest(request);    // The only requests that should be on toBeApplied are write    // requests, for which we will have a hdr. We can't simply use    // request.zxid here because that is set on read requests to equal    // the zxid of the last write op.    if (request.getHdr() != null) {        long zxid = request.getHdr().getZxid();        Iterator iter = leader.toBeApplied.iterator();        if (iter.hasNext()) {            Proposal p = iter.next();            if (p.request != null && p.request.zxid == zxid) {                iter.remove();                return;            }        }        LOG.error("Committed request not found on toBeApplied: " + request);    }}

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