通过查询apiserver的日志，发现以下报错 watch chan error: etcdserver: mvcc: required revision has been compacted 原因是
Object* object = array->RemoveHoles(); if (object->IsFailure()) return object; // 拿到有效元素 JSArray* compacted_array...= JSArray::cast(object); // 数组长度 int compacted_array_length = Smi::cast(compacted_array->length(...))->value(); // 分配一个新的数组 object = Heap::AllocateFixedArray(compacted_array_length); if (object-...return object; FixedArray* key_array = FixedArray::cast(object); // 逐个复制过去 for (int i = 0; i < compacted_array_length...; i++) { key_array->set(i, compacted_array->GetElement(i)); } // 去重合成新数组返回 return UnionOfKeys
在parquet格式的非压缩表运行查询比在压缩表上运行查询多1.6倍的时间 这是针对ORC文件格式的压缩测试的输出，其中SLS_SALES_FACT_ORC是非压缩表，而SLS_SALES_FACT_COMPACTED_ORC...(total: 3.673 s) [bigsql@host root]$ hdfs dfs -ls /apps/hive/warehouse/gosalesdw.db/sls_sales_fact_compacted_orc...items drwxrwxrwx - bigsql hadoop 0 2017-12-14 18:14 /apps/hive/warehouse/gosalesdw.db/sls_sales_fact_compacted_orc...rwxrwxrwx 3 bigsql hadoop 19602272 2017-12-15 12:19 /apps/hive/warehouse/gosalesdw.db/sls_sales_fact_compacted_orc...rwxrwxrwx 3 bigsql hadoop 3720403 2017-12-15 12:19 /apps/hive/warehouse/gosalesdw.db/sls_sales_fact_compacted_orc
expanded nested compacted compressed 默认是nested。...选择expanded格式： sass --style expanded test.scss 如下： 选择nested格式： sass --style nested test.scss 选择compacted...格式： sass --style compacted test.scss 选择compressed格式： sass --style compressed test.scss 使用 partials
record to Kafka: This message has failed its CRC checksum, exceeds the valid size, has a null key for a compacted...corrupt.org.apache.kafka.common.errors.CorruptRecordException: This message has failed its CRC checksum, exceeds the valid size, has a null key for a compacted
www.nature.com/articles/s41592-022-01609-w 序列分析 Scalable, ultra-fast, and low-memory construction of compacted...The de Bruijn graph is a key data structure in modern computational genomics, and construction of its compacted
───────┘ ┌─────────────────────────────────────────┐ ┌───────────┐ ┌───────────┐ │ 1 compacted... └───────────┘ ┌──────────────────────────┐ ┌──────────────────────────┐ ┌───────────┐ │ 1 compacted... │ │ 3 compacted │ │ 5 mutable │ after (option B) └─────────────────────────...tombstones.Reader db.deleteBlocks(deletable) db.compactor.Plan(): Plan returns a set of directories that can be compacted
其原理就是利用了kafka的compacted topic，offset以consumer group,topic与partion的组合作为key直接提交到compacted topic中。
. // If the required rev is compacted, ErrCompacted will be returned....]byte // victim is set when ch is blocked and undergoing victim processing victim bool // compacted...is set when the watcher is removed because of compaction compacted bool // restore is true when...or range [key, end) from the given startRev. // // The whole event history can be watched unless compacted
这个问题在社区中有对应的 issue#prevKV not being returned if the previous KV was compacted is suprising behavior。...One example of how this is possible is if the previous value has been compacted already.
The key-value // store should be periodically compacted or the event history will continue to grow...WithRev(rev) with rev > 0, Get retrieves keys at the given revision; // if the required revision is compacted...If revisions waiting to be sent over the // watch are compacted, then the watch will be canceled by...the server, the // client will post a compacted error watch response, and the channel will close.
17973248,"leader":13803658152347727308,"raftIndex":6359,"raftTerm":2}}] 压缩所有旧有修订版本 $ etdctl compact 1516 compacted
─────┘ ┌─────────────────────────────────────────┐ ┌───────────┐ ┌───────────┐ │ 1 compacted...└───────────┘ ┌──────────────────────────┐ ┌──────────────────────────┐ ┌───────────┐ │ 1 compacted...│ │ 3 compacted │ │ 5 mutable │ after (option B) └────────────────────────
return a full compaction plan the next // time Plan() is called if there are files that could be compacted...// See if this generation is orphan'd which would prevent it from being further // compacted...continue } compactable = append(compactable, group) } // All the files to be compacted...must be compacted in order....We need to convert each // group to the actual set of files in that group to be compacted.
By default we will avoid cleaning a log where more than 50% of the log has been compacted....Only applicable for logs that are being compacted. long 0 [0,...] log.cleaner.min.compaction.lag.ms medium
Buckets are rearranged each time HashMap is compacted or expanded.
这是压缩修订版本的命令： etcdctl compact 5compacted revision 5 #在压缩修订版本之前的任何修订版本都不可访问 etcdctl get --rev=4 foo{"level...attempt":0,"error":"rpc error: code = OutOfRange desc = etcdserver: mvcc: required revision has been compacted..."}Error: etcdserver: mvcc: required revision has been compacted 3.3 租约 授予租约 应用可以为 etcd 集群里面的键授予租约。
This topic should have many partitions and be replicated and compacted. # Kafka Connect will attempt...connector and task configurations; note that this should be a single partition, highly replicated, # and compacted...This topic can have multiple partitions and should be replicated and compacted. # Kafka Connect will
--ignoreRevision 忽略 etcd revision的保证，强制执行备份，用户备份在线系统时 revision 变化过快遇到 revision compacted 的问题。
759080536 Index summary off heap memory used: 133704648 Compression metadata off heap memory used: 0 Compacted...partition minimum bytes: 43 Compacted partition maximum bytes: 1597 Compacted partition mean bytes:
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