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Posted to commits@hbase.apache.org by gi...@apache.org on 2018/08/25 14:47:59 UTC
[08/37] hbase-site git commit: Published site at
409e742ac3bdbff027b136a87339f4f5511da07d.
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/c7b180e2/devapidocs/src-html/org/apache/hadoop/hbase/util/HBaseFsck.TableInfo.html
----------------------------------------------------------------------
diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/util/HBaseFsck.TableInfo.html b/devapidocs/src-html/org/apache/hadoop/hbase/util/HBaseFsck.TableInfo.html
index cd509b8..a957d31 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/util/HBaseFsck.TableInfo.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/util/HBaseFsck.TableInfo.html
@@ -152,5137 +152,5182 @@
<span class="sourceLineNo">144</span>import org.apache.hadoop.util.ReflectionUtils;<a name="line.144"></a>
<span class="sourceLineNo">145</span>import org.apache.hadoop.util.Tool;<a name="line.145"></a>
<span class="sourceLineNo">146</span>import org.apache.hadoop.util.ToolRunner;<a name="line.146"></a>
-<span class="sourceLineNo">147</span>import org.apache.hbase.thirdparty.com.google.common.collect.Sets;<a name="line.147"></a>
-<span class="sourceLineNo">148</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.148"></a>
-<span class="sourceLineNo">149</span>import org.apache.yetus.audience.InterfaceStability;<a name="line.149"></a>
-<span class="sourceLineNo">150</span>import org.apache.zookeeper.KeeperException;<a name="line.150"></a>
-<span class="sourceLineNo">151</span>import org.slf4j.Logger;<a name="line.151"></a>
-<span class="sourceLineNo">152</span>import org.slf4j.LoggerFactory;<a name="line.152"></a>
-<span class="sourceLineNo">153</span><a name="line.153"></a>
-<span class="sourceLineNo">154</span>import org.apache.hbase.thirdparty.com.google.common.base.Joiner;<a name="line.154"></a>
-<span class="sourceLineNo">155</span>import org.apache.hbase.thirdparty.com.google.common.base.Preconditions;<a name="line.155"></a>
-<span class="sourceLineNo">156</span>import org.apache.hbase.thirdparty.com.google.common.collect.ImmutableList;<a name="line.156"></a>
-<span class="sourceLineNo">157</span>import org.apache.hbase.thirdparty.com.google.common.collect.Lists;<a name="line.157"></a>
-<span class="sourceLineNo">158</span>import org.apache.hbase.thirdparty.com.google.common.collect.Multimap;<a name="line.158"></a>
-<span class="sourceLineNo">159</span>import org.apache.hbase.thirdparty.com.google.common.collect.Ordering;<a name="line.159"></a>
-<span class="sourceLineNo">160</span>import org.apache.hbase.thirdparty.com.google.common.collect.TreeMultimap;<a name="line.160"></a>
-<span class="sourceLineNo">161</span><a name="line.161"></a>
-<span class="sourceLineNo">162</span>import org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil;<a name="line.162"></a>
-<span class="sourceLineNo">163</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.AdminService.BlockingInterface;<a name="line.163"></a>
-<span class="sourceLineNo">164</span><a name="line.164"></a>
-<span class="sourceLineNo">165</span>/**<a name="line.165"></a>
-<span class="sourceLineNo">166</span> * HBaseFsck (hbck) is a tool for checking and repairing region consistency and<a name="line.166"></a>
-<span class="sourceLineNo">167</span> * table integrity problems in a corrupted HBase.<a name="line.167"></a>
-<span class="sourceLineNo">168</span> * <p><a name="line.168"></a>
-<span class="sourceLineNo">169</span> * Region consistency checks verify that hbase:meta, region deployment on region<a name="line.169"></a>
-<span class="sourceLineNo">170</span> * servers and the state of data in HDFS (.regioninfo files) all are in<a name="line.170"></a>
-<span class="sourceLineNo">171</span> * accordance.<a name="line.171"></a>
+<span class="sourceLineNo">147</span>import org.apache.hbase.thirdparty.com.google.common.annotations.VisibleForTesting;<a name="line.147"></a>
+<span class="sourceLineNo">148</span>import org.apache.hbase.thirdparty.com.google.common.collect.Sets;<a name="line.148"></a>
+<span class="sourceLineNo">149</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.149"></a>
+<span class="sourceLineNo">150</span>import org.apache.yetus.audience.InterfaceStability;<a name="line.150"></a>
+<span class="sourceLineNo">151</span>import org.apache.zookeeper.KeeperException;<a name="line.151"></a>
+<span class="sourceLineNo">152</span>import org.slf4j.Logger;<a name="line.152"></a>
+<span class="sourceLineNo">153</span>import org.slf4j.LoggerFactory;<a name="line.153"></a>
+<span class="sourceLineNo">154</span><a name="line.154"></a>
+<span class="sourceLineNo">155</span>import org.apache.hbase.thirdparty.com.google.common.base.Joiner;<a name="line.155"></a>
+<span class="sourceLineNo">156</span>import org.apache.hbase.thirdparty.com.google.common.base.Preconditions;<a name="line.156"></a>
+<span class="sourceLineNo">157</span>import org.apache.hbase.thirdparty.com.google.common.collect.ImmutableList;<a name="line.157"></a>
+<span class="sourceLineNo">158</span>import org.apache.hbase.thirdparty.com.google.common.collect.Lists;<a name="line.158"></a>
+<span class="sourceLineNo">159</span>import org.apache.hbase.thirdparty.com.google.common.collect.Multimap;<a name="line.159"></a>
+<span class="sourceLineNo">160</span>import org.apache.hbase.thirdparty.com.google.common.collect.Ordering;<a name="line.160"></a>
+<span class="sourceLineNo">161</span>import org.apache.hbase.thirdparty.com.google.common.collect.TreeMultimap;<a name="line.161"></a>
+<span class="sourceLineNo">162</span><a name="line.162"></a>
+<span class="sourceLineNo">163</span>import org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil;<a name="line.163"></a>
+<span class="sourceLineNo">164</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.AdminService.BlockingInterface;<a name="line.164"></a>
+<span class="sourceLineNo">165</span><a name="line.165"></a>
+<span class="sourceLineNo">166</span>/**<a name="line.166"></a>
+<span class="sourceLineNo">167</span> * HBaseFsck (hbck) is a tool for checking and repairing region consistency and<a name="line.167"></a>
+<span class="sourceLineNo">168</span> * table integrity problems in a corrupted HBase. This tool was written for hbase-1.x. It does not<a name="line.168"></a>
+<span class="sourceLineNo">169</span> * work with hbase-2.x; it can read state but is not allowed to change state; i.e. effect 'repair'.<a name="line.169"></a>
+<span class="sourceLineNo">170</span> * See hbck2 (HBASE-19121) for a hbck tool for hbase2.<a name="line.170"></a>
+<span class="sourceLineNo">171</span> *<a name="line.171"></a>
<span class="sourceLineNo">172</span> * <p><a name="line.172"></a>
-<span class="sourceLineNo">173</span> * Table integrity checks verify that all possible row keys resolve to exactly<a name="line.173"></a>
-<span class="sourceLineNo">174</span> * one region of a table. This means there are no individual degenerate<a name="line.174"></a>
-<span class="sourceLineNo">175</span> * or backwards regions; no holes between regions; and that there are no<a name="line.175"></a>
-<span class="sourceLineNo">176</span> * overlapping regions.<a name="line.176"></a>
-<span class="sourceLineNo">177</span> * <p><a name="line.177"></a>
-<span class="sourceLineNo">178</span> * The general repair strategy works in two phases:<a name="line.178"></a>
-<span class="sourceLineNo">179</span> * <ol><a name="line.179"></a>
-<span class="sourceLineNo">180</span> * <li> Repair Table Integrity on HDFS. (merge or fabricate regions)<a name="line.180"></a>
-<span class="sourceLineNo">181</span> * <li> Repair Region Consistency with hbase:meta and assignments<a name="line.181"></a>
-<span class="sourceLineNo">182</span> * </ol><a name="line.182"></a>
-<span class="sourceLineNo">183</span> * <p><a name="line.183"></a>
-<span class="sourceLineNo">184</span> * For table integrity repairs, the tables' region directories are scanned<a name="line.184"></a>
-<span class="sourceLineNo">185</span> * for .regioninfo files. Each table's integrity is then verified. If there<a name="line.185"></a>
-<span class="sourceLineNo">186</span> * are any orphan regions (regions with no .regioninfo files) or holes, new<a name="line.186"></a>
-<span class="sourceLineNo">187</span> * regions are fabricated. Backwards regions are sidelined as well as empty<a name="line.187"></a>
-<span class="sourceLineNo">188</span> * degenerate (endkey==startkey) regions. If there are any overlapping regions,<a name="line.188"></a>
-<span class="sourceLineNo">189</span> * a new region is created and all data is merged into the new region.<a name="line.189"></a>
-<span class="sourceLineNo">190</span> * <p><a name="line.190"></a>
-<span class="sourceLineNo">191</span> * Table integrity repairs deal solely with HDFS and could potentially be done<a name="line.191"></a>
-<span class="sourceLineNo">192</span> * offline -- the hbase region servers or master do not need to be running.<a name="line.192"></a>
-<span class="sourceLineNo">193</span> * This phase can eventually be used to completely reconstruct the hbase:meta table in<a name="line.193"></a>
-<span class="sourceLineNo">194</span> * an offline fashion.<a name="line.194"></a>
-<span class="sourceLineNo">195</span> * <p><a name="line.195"></a>
-<span class="sourceLineNo">196</span> * Region consistency requires three conditions -- 1) valid .regioninfo file<a name="line.196"></a>
-<span class="sourceLineNo">197</span> * present in an HDFS region dir, 2) valid row with .regioninfo data in META,<a name="line.197"></a>
-<span class="sourceLineNo">198</span> * and 3) a region is deployed only at the regionserver that was assigned to<a name="line.198"></a>
-<span class="sourceLineNo">199</span> * with proper state in the master.<a name="line.199"></a>
-<span class="sourceLineNo">200</span> * <p><a name="line.200"></a>
-<span class="sourceLineNo">201</span> * Region consistency repairs require hbase to be online so that hbck can<a name="line.201"></a>
-<span class="sourceLineNo">202</span> * contact the HBase master and region servers. The hbck#connect() method must<a name="line.202"></a>
-<span class="sourceLineNo">203</span> * first be called successfully. Much of the region consistency information<a name="line.203"></a>
-<span class="sourceLineNo">204</span> * is transient and less risky to repair.<a name="line.204"></a>
-<span class="sourceLineNo">205</span> * <p><a name="line.205"></a>
-<span class="sourceLineNo">206</span> * If hbck is run from the command line, there are a handful of arguments that<a name="line.206"></a>
-<span class="sourceLineNo">207</span> * can be used to limit the kinds of repairs hbck will do. See the code in<a name="line.207"></a>
-<span class="sourceLineNo">208</span> * {@link #printUsageAndExit()} for more details.<a name="line.208"></a>
-<span class="sourceLineNo">209</span> */<a name="line.209"></a>
-<span class="sourceLineNo">210</span>@InterfaceAudience.LimitedPrivate(HBaseInterfaceAudience.TOOLS)<a name="line.210"></a>
-<span class="sourceLineNo">211</span>@InterfaceStability.Evolving<a name="line.211"></a>
-<span class="sourceLineNo">212</span>public class HBaseFsck extends Configured implements Closeable {<a name="line.212"></a>
-<span class="sourceLineNo">213</span> public static final long DEFAULT_TIME_LAG = 60000; // default value of 1 minute<a name="line.213"></a>
-<span class="sourceLineNo">214</span> public static final long DEFAULT_SLEEP_BEFORE_RERUN = 10000;<a name="line.214"></a>
-<span class="sourceLineNo">215</span> private static final int MAX_NUM_THREADS = 50; // #threads to contact regions<a name="line.215"></a>
-<span class="sourceLineNo">216</span> private static boolean rsSupportsOffline = true;<a name="line.216"></a>
-<span class="sourceLineNo">217</span> private static final int DEFAULT_OVERLAPS_TO_SIDELINE = 2;<a name="line.217"></a>
-<span class="sourceLineNo">218</span> private static final int DEFAULT_MAX_MERGE = 5;<a name="line.218"></a>
-<span class="sourceLineNo">219</span> private static final String TO_BE_LOADED = "to_be_loaded";<a name="line.219"></a>
-<span class="sourceLineNo">220</span> private static final String HBCK_LOCK_FILE = "hbase-hbck.lock";<a name="line.220"></a>
-<span class="sourceLineNo">221</span> private static final int DEFAULT_MAX_LOCK_FILE_ATTEMPTS = 5;<a name="line.221"></a>
-<span class="sourceLineNo">222</span> private static final int DEFAULT_LOCK_FILE_ATTEMPT_SLEEP_INTERVAL = 200; // milliseconds<a name="line.222"></a>
-<span class="sourceLineNo">223</span> private static final int DEFAULT_LOCK_FILE_ATTEMPT_MAX_SLEEP_TIME = 5000; // milliseconds<a name="line.223"></a>
-<span class="sourceLineNo">224</span> // We have to set the timeout value > HdfsConstants.LEASE_SOFTLIMIT_PERIOD.<a name="line.224"></a>
-<span class="sourceLineNo">225</span> // In HADOOP-2.6 and later, the Namenode proxy now created with custom RetryPolicy for<a name="line.225"></a>
-<span class="sourceLineNo">226</span> // AlreadyBeingCreatedException which is implies timeout on this operations up to<a name="line.226"></a>
-<span class="sourceLineNo">227</span> // HdfsConstants.LEASE_SOFTLIMIT_PERIOD (60 seconds).<a name="line.227"></a>
-<span class="sourceLineNo">228</span> private static final int DEFAULT_WAIT_FOR_LOCK_TIMEOUT = 80; // seconds<a name="line.228"></a>
-<span class="sourceLineNo">229</span> private static final int DEFAULT_MAX_CREATE_ZNODE_ATTEMPTS = 5;<a name="line.229"></a>
-<span class="sourceLineNo">230</span> private static final int DEFAULT_CREATE_ZNODE_ATTEMPT_SLEEP_INTERVAL = 200; // milliseconds<a name="line.230"></a>
-<span class="sourceLineNo">231</span> private static final int DEFAULT_CREATE_ZNODE_ATTEMPT_MAX_SLEEP_TIME = 5000; // milliseconds<a name="line.231"></a>
-<span class="sourceLineNo">232</span><a name="line.232"></a>
-<span class="sourceLineNo">233</span> /**********************<a name="line.233"></a>
-<span class="sourceLineNo">234</span> * Internal resources<a name="line.234"></a>
-<span class="sourceLineNo">235</span> **********************/<a name="line.235"></a>
-<span class="sourceLineNo">236</span> private static final Logger LOG = LoggerFactory.getLogger(HBaseFsck.class.getName());<a name="line.236"></a>
-<span class="sourceLineNo">237</span> private ClusterMetrics status;<a name="line.237"></a>
-<span class="sourceLineNo">238</span> private ClusterConnection connection;<a name="line.238"></a>
-<span class="sourceLineNo">239</span> private Admin admin;<a name="line.239"></a>
-<span class="sourceLineNo">240</span> private Table meta;<a name="line.240"></a>
-<span class="sourceLineNo">241</span> // threads to do ||izable tasks: retrieve data from regionservers, handle overlapping regions<a name="line.241"></a>
-<span class="sourceLineNo">242</span> protected ExecutorService executor;<a name="line.242"></a>
-<span class="sourceLineNo">243</span> private long startMillis = EnvironmentEdgeManager.currentTime();<a name="line.243"></a>
-<span class="sourceLineNo">244</span> private HFileCorruptionChecker hfcc;<a name="line.244"></a>
-<span class="sourceLineNo">245</span> private int retcode = 0;<a name="line.245"></a>
-<span class="sourceLineNo">246</span> private Path HBCK_LOCK_PATH;<a name="line.246"></a>
-<span class="sourceLineNo">247</span> private FSDataOutputStream hbckOutFd;<a name="line.247"></a>
-<span class="sourceLineNo">248</span> // This lock is to prevent cleanup of balancer resources twice between<a name="line.248"></a>
-<span class="sourceLineNo">249</span> // ShutdownHook and the main code. We cleanup only if the connect() is<a name="line.249"></a>
-<span class="sourceLineNo">250</span> // successful<a name="line.250"></a>
-<span class="sourceLineNo">251</span> private final AtomicBoolean hbckLockCleanup = new AtomicBoolean(false);<a name="line.251"></a>
-<span class="sourceLineNo">252</span><a name="line.252"></a>
-<span class="sourceLineNo">253</span> // Unsupported options in HBase 2.0+<a name="line.253"></a>
-<span class="sourceLineNo">254</span> private static final Set<String> unsupportedOptionsInV2 = Sets.newHashSet("-fix",<a name="line.254"></a>
-<span class="sourceLineNo">255</span> "-fixAssignments", "-fixMeta", "-fixHdfsHoles", "-fixHdfsOrphans", "-fixTableOrphans",<a name="line.255"></a>
-<span class="sourceLineNo">256</span> "-fixHdfsOverlaps", "-sidelineBigOverlaps", "-fixSplitParents", "-removeParents",<a name="line.256"></a>
-<span class="sourceLineNo">257</span> "-fixEmptyMetaCells", "-repair", "-repairHoles", "-maxOverlapsToSideline", "-maxMerge");<a name="line.257"></a>
-<span class="sourceLineNo">258</span><a name="line.258"></a>
-<span class="sourceLineNo">259</span> /***********<a name="line.259"></a>
-<span class="sourceLineNo">260</span> * Options<a name="line.260"></a>
-<span class="sourceLineNo">261</span> ***********/<a name="line.261"></a>
-<span class="sourceLineNo">262</span> private static boolean details = false; // do we display the full report<a name="line.262"></a>
-<span class="sourceLineNo">263</span> private long timelag = DEFAULT_TIME_LAG; // tables whose modtime is older<a name="line.263"></a>
-<span class="sourceLineNo">264</span> private static boolean forceExclusive = false; // only this hbck can modify HBase<a name="line.264"></a>
-<span class="sourceLineNo">265</span> private boolean fixAssignments = false; // fix assignment errors?<a name="line.265"></a>
-<span class="sourceLineNo">266</span> private boolean fixMeta = false; // fix meta errors?<a name="line.266"></a>
-<span class="sourceLineNo">267</span> private boolean checkHdfs = true; // load and check fs consistency?<a name="line.267"></a>
-<span class="sourceLineNo">268</span> private boolean fixHdfsHoles = false; // fix fs holes?<a name="line.268"></a>
-<span class="sourceLineNo">269</span> private boolean fixHdfsOverlaps = false; // fix fs overlaps (risky)<a name="line.269"></a>
-<span class="sourceLineNo">270</span> private boolean fixHdfsOrphans = false; // fix fs holes (missing .regioninfo)<a name="line.270"></a>
-<span class="sourceLineNo">271</span> private boolean fixTableOrphans = false; // fix fs holes (missing .tableinfo)<a name="line.271"></a>
-<span class="sourceLineNo">272</span> private boolean fixVersionFile = false; // fix missing hbase.version file in hdfs<a name="line.272"></a>
-<span class="sourceLineNo">273</span> private boolean fixSplitParents = false; // fix lingering split parents<a name="line.273"></a>
-<span class="sourceLineNo">274</span> private boolean removeParents = false; // remove split parents<a name="line.274"></a>
-<span class="sourceLineNo">275</span> private boolean fixReferenceFiles = false; // fix lingering reference store file<a name="line.275"></a>
-<span class="sourceLineNo">276</span> private boolean fixHFileLinks = false; // fix lingering HFileLinks<a name="line.276"></a>
-<span class="sourceLineNo">277</span> private boolean fixEmptyMetaCells = false; // fix (remove) empty REGIONINFO_QUALIFIER rows<a name="line.277"></a>
-<span class="sourceLineNo">278</span> private boolean fixReplication = false; // fix undeleted replication queues for removed peer<a name="line.278"></a>
-<span class="sourceLineNo">279</span> private boolean cleanReplicationBarrier = false; // clean replication barriers of a table<a name="line.279"></a>
-<span class="sourceLineNo">280</span> private boolean fixAny = false; // Set to true if any of the fix is required.<a name="line.280"></a>
-<span class="sourceLineNo">281</span><a name="line.281"></a>
-<span class="sourceLineNo">282</span> // limit checking/fixes to listed tables, if empty attempt to check/fix all<a name="line.282"></a>
-<span class="sourceLineNo">283</span> // hbase:meta are always checked<a name="line.283"></a>
-<span class="sourceLineNo">284</span> private Set<TableName> tablesIncluded = new HashSet<>();<a name="line.284"></a>
-<span class="sourceLineNo">285</span> private TableName cleanReplicationBarrierTable;<a name="line.285"></a>
-<span class="sourceLineNo">286</span> private int maxMerge = DEFAULT_MAX_MERGE; // maximum number of overlapping regions to merge<a name="line.286"></a>
-<span class="sourceLineNo">287</span> // maximum number of overlapping regions to sideline<a name="line.287"></a>
-<span class="sourceLineNo">288</span> private int maxOverlapsToSideline = DEFAULT_OVERLAPS_TO_SIDELINE;<a name="line.288"></a>
-<span class="sourceLineNo">289</span> private boolean sidelineBigOverlaps = false; // sideline overlaps with >maxMerge regions<a name="line.289"></a>
-<span class="sourceLineNo">290</span> private Path sidelineDir = null;<a name="line.290"></a>
-<span class="sourceLineNo">291</span><a name="line.291"></a>
-<span class="sourceLineNo">292</span> private boolean rerun = false; // if we tried to fix something, rerun hbck<a name="line.292"></a>
-<span class="sourceLineNo">293</span> private static boolean summary = false; // if we want to print less output<a name="line.293"></a>
-<span class="sourceLineNo">294</span> private boolean checkMetaOnly = false;<a name="line.294"></a>
-<span class="sourceLineNo">295</span> private boolean checkRegionBoundaries = false;<a name="line.295"></a>
-<span class="sourceLineNo">296</span> private boolean ignorePreCheckPermission = false; // if pre-check permission<a name="line.296"></a>
-<span class="sourceLineNo">297</span><a name="line.297"></a>
-<span class="sourceLineNo">298</span> /*********<a name="line.298"></a>
-<span class="sourceLineNo">299</span> * State<a name="line.299"></a>
-<span class="sourceLineNo">300</span> *********/<a name="line.300"></a>
-<span class="sourceLineNo">301</span> final private ErrorReporter errors;<a name="line.301"></a>
-<span class="sourceLineNo">302</span> int fixes = 0;<a name="line.302"></a>
-<span class="sourceLineNo">303</span><a name="line.303"></a>
-<span class="sourceLineNo">304</span> /**<a name="line.304"></a>
-<span class="sourceLineNo">305</span> * This map contains the state of all hbck items. It maps from encoded region<a name="line.305"></a>
-<span class="sourceLineNo">306</span> * name to HbckInfo structure. The information contained in HbckInfo is used<a name="line.306"></a>
-<span class="sourceLineNo">307</span> * to detect and correct consistency (hdfs/meta/deployment) problems.<a name="line.307"></a>
-<span class="sourceLineNo">308</span> */<a name="line.308"></a>
-<span class="sourceLineNo">309</span> private TreeMap<String, HbckInfo> regionInfoMap = new TreeMap<>();<a name="line.309"></a>
-<span class="sourceLineNo">310</span> // Empty regioninfo qualifiers in hbase:meta<a name="line.310"></a>
-<span class="sourceLineNo">311</span> private Set<Result> emptyRegionInfoQualifiers = new HashSet<>();<a name="line.311"></a>
+<span class="sourceLineNo">173</span> * Region consistency checks verify that hbase:meta, region deployment on region<a name="line.173"></a>
+<span class="sourceLineNo">174</span> * servers and the state of data in HDFS (.regioninfo files) all are in<a name="line.174"></a>
+<span class="sourceLineNo">175</span> * accordance.<a name="line.175"></a>
+<span class="sourceLineNo">176</span> * <p><a name="line.176"></a>
+<span class="sourceLineNo">177</span> * Table integrity checks verify that all possible row keys resolve to exactly<a name="line.177"></a>
+<span class="sourceLineNo">178</span> * one region of a table. This means there are no individual degenerate<a name="line.178"></a>
+<span class="sourceLineNo">179</span> * or backwards regions; no holes between regions; and that there are no<a name="line.179"></a>
+<span class="sourceLineNo">180</span> * overlapping regions.<a name="line.180"></a>
+<span class="sourceLineNo">181</span> * <p><a name="line.181"></a>
+<span class="sourceLineNo">182</span> * The general repair strategy works in two phases:<a name="line.182"></a>
+<span class="sourceLineNo">183</span> * <ol><a name="line.183"></a>
+<span class="sourceLineNo">184</span> * <li> Repair Table Integrity on HDFS. (merge or fabricate regions)<a name="line.184"></a>
+<span class="sourceLineNo">185</span> * <li> Repair Region Consistency with hbase:meta and assignments<a name="line.185"></a>
+<span class="sourceLineNo">186</span> * </ol><a name="line.186"></a>
+<span class="sourceLineNo">187</span> * <p><a name="line.187"></a>
+<span class="sourceLineNo">188</span> * For table integrity repairs, the tables' region directories are scanned<a name="line.188"></a>
+<span class="sourceLineNo">189</span> * for .regioninfo files. Each table's integrity is then verified. If there<a name="line.189"></a>
+<span class="sourceLineNo">190</span> * are any orphan regions (regions with no .regioninfo files) or holes, new<a name="line.190"></a>
+<span class="sourceLineNo">191</span> * regions are fabricated. Backwards regions are sidelined as well as empty<a name="line.191"></a>
+<span class="sourceLineNo">192</span> * degenerate (endkey==startkey) regions. If there are any overlapping regions,<a name="line.192"></a>
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+<span class="sourceLineNo">194</span> * <p><a name="line.194"></a>
+<span class="sourceLineNo">195</span> * Table integrity repairs deal solely with HDFS and could potentially be done<a name="line.195"></a>
+<span class="sourceLineNo">196</span> * offline -- the hbase region servers or master do not need to be running.<a name="line.196"></a>
+<span class="sourceLineNo">197</span> * This phase can eventually be used to completely reconstruct the hbase:meta table in<a name="line.197"></a>
+<span class="sourceLineNo">198</span> * an offline fashion.<a name="line.198"></a>
+<span class="sourceLineNo">199</span> * <p><a name="line.199"></a>
+<span class="sourceLineNo">200</span> * Region consistency requires three conditions -- 1) valid .regioninfo file<a name="line.200"></a>
+<span class="sourceLineNo">201</span> * present in an HDFS region dir, 2) valid row with .regioninfo data in META,<a name="line.201"></a>
+<span class="sourceLineNo">202</span> * and 3) a region is deployed only at the regionserver that was assigned to<a name="line.202"></a>
+<span class="sourceLineNo">203</span> * with proper state in the master.<a name="line.203"></a>
+<span class="sourceLineNo">204</span> * <p><a name="line.204"></a>
+<span class="sourceLineNo">205</span> * Region consistency repairs require hbase to be online so that hbck can<a name="line.205"></a>
+<span class="sourceLineNo">206</span> * contact the HBase master and region servers. The hbck#connect() method must<a name="line.206"></a>
+<span class="sourceLineNo">207</span> * first be called successfully. Much of the region consistency information<a name="line.207"></a>
+<span class="sourceLineNo">208</span> * is transient and less risky to repair.<a name="line.208"></a>
+<span class="sourceLineNo">209</span> * <p><a name="line.209"></a>
+<span class="sourceLineNo">210</span> * If hbck is run from the command line, there are a handful of arguments that<a name="line.210"></a>
+<span class="sourceLineNo">211</span> * can be used to limit the kinds of repairs hbck will do. See the code in<a name="line.211"></a>
+<span class="sourceLineNo">212</span> * {@link #printUsageAndExit()} for more details.<a name="line.212"></a>
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+<span class="sourceLineNo">215</span>@InterfaceStability.Evolving<a name="line.215"></a>
+<span class="sourceLineNo">216</span>public class HBaseFsck extends Configured implements Closeable {<a name="line.216"></a>
+<span class="sourceLineNo">217</span> public static final long DEFAULT_TIME_LAG = 60000; // default value of 1 minute<a name="line.217"></a>
+<span class="sourceLineNo">218</span> public static final long DEFAULT_SLEEP_BEFORE_RERUN = 10000;<a name="line.218"></a>
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+<span class="sourceLineNo">221</span> private static final int DEFAULT_OVERLAPS_TO_SIDELINE = 2;<a name="line.221"></a>
+<span class="sourceLineNo">222</span> private static final int DEFAULT_MAX_MERGE = 5;<a name="line.222"></a>
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+<span class="sourceLineNo">224</span> /**<a name="line.224"></a>
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+<span class="sourceLineNo">226</span> * It puts in place a lock when it goes to write/make changes.<a name="line.226"></a>
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+<span class="sourceLineNo">228</span> @VisibleForTesting<a name="line.228"></a>
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+<span class="sourceLineNo">232</span> private static final int DEFAULT_LOCK_FILE_ATTEMPT_MAX_SLEEP_TIME = 5000; // milliseconds<a name="line.232"></a>
+<span class="sourceLineNo">233</span> // We have to set the timeout value > HdfsConstants.LEASE_SOFTLIMIT_PERIOD.<a name="line.233"></a>
+<span class="sourceLineNo">234</span> // In HADOOP-2.6 and later, the Namenode proxy now created with custom RetryPolicy for<a name="line.234"></a>
+<span class="sourceLineNo">235</span> // AlreadyBeingCreatedException which is implies timeout on this operations up to<a name="line.235"></a>
+<span class="sourceLineNo">236</span> // HdfsConstants.LEASE_SOFTLIMIT_PERIOD (60 seconds).<a name="line.236"></a>
+<span class="sourceLineNo">237</span> private static final int DEFAULT_WAIT_FOR_LOCK_TIMEOUT = 80; // seconds<a name="line.237"></a>
+<span class="sourceLineNo">238</span> private static final int DEFAULT_MAX_CREATE_ZNODE_ATTEMPTS = 5;<a name="line.238"></a>
+<span class="sourceLineNo">239</span> private static final int DEFAULT_CREATE_ZNODE_ATTEMPT_SLEEP_INTERVAL = 200; // milliseconds<a name="line.239"></a>
+<span class="sourceLineNo">240</span> private static final int DEFAULT_CREATE_ZNODE_ATTEMPT_MAX_SLEEP_TIME = 5000; // milliseconds<a name="line.240"></a>
+<span class="sourceLineNo">241</span><a name="line.241"></a>
+<span class="sourceLineNo">242</span> /**********************<a name="line.242"></a>
+<span class="sourceLineNo">243</span> * Internal resources<a name="line.243"></a>
+<span class="sourceLineNo">244</span> **********************/<a name="line.244"></a>
+<span class="sourceLineNo">245</span> private static final Logger LOG = LoggerFactory.getLogger(HBaseFsck.class.getName());<a name="line.245"></a>
+<span class="sourceLineNo">246</span> private ClusterMetrics status;<a name="line.246"></a>
+<span class="sourceLineNo">247</span> private ClusterConnection connection;<a name="line.247"></a>
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+<span class="sourceLineNo">249</span> private Table meta;<a name="line.249"></a>
+<span class="sourceLineNo">250</span> // threads to do ||izable tasks: retrieve data from regionservers, handle overlapping regions<a name="line.250"></a>
+<span class="sourceLineNo">251</span> protected ExecutorService executor;<a name="line.251"></a>
+<span class="sourceLineNo">252</span> private long startMillis = EnvironmentEdgeManager.currentTime();<a name="line.252"></a>
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+<span class="sourceLineNo">256</span> private FSDataOutputStream hbckOutFd;<a name="line.256"></a>
+<span class="sourceLineNo">257</span> // This lock is to prevent cleanup of balancer resources twice between<a name="line.257"></a>
+<span class="sourceLineNo">258</span> // ShutdownHook and the main code. We cleanup only if the connect() is<a name="line.258"></a>
+<span class="sourceLineNo">259</span> // successful<a name="line.259"></a>
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+<span class="sourceLineNo">261</span><a name="line.261"></a>
+<span class="sourceLineNo">262</span> // Unsupported options in HBase 2.0+<a name="line.262"></a>
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+<span class="sourceLineNo">264</span> "-fixAssignments", "-fixMeta", "-fixHdfsHoles", "-fixHdfsOrphans", "-fixTableOrphans",<a name="line.264"></a>
+<span class="sourceLineNo">265</span> "-fixHdfsOverlaps", "-sidelineBigOverlaps", "-fixSplitParents", "-removeParents",<a name="line.265"></a>
+<span class="sourceLineNo">266</span> "-fixEmptyMetaCells", "-repair", "-repairHoles", "-maxOverlapsToSideline", "-maxMerge");<a name="line.266"></a>
+<span class="sourceLineNo">267</span><a name="line.267"></a>
+<span class="sourceLineNo">268</span> /***********<a name="line.268"></a>
+<span class="sourceLineNo">269</span> * Options<a name="line.269"></a>
+<span class="sourceLineNo">270</span> ***********/<a name="line.270"></a>
+<span class="sourceLineNo">271</span> private static boolean details = false; // do we display the full report<a name="line.271"></a>
+<span class="sourceLineNo">272</span> private long timelag = DEFAULT_TIME_LAG; // tables whose modtime is older<a name="line.272"></a>
+<span class="sourceLineNo">273</span> private static boolean forceExclusive = false; // only this hbck can modify HBase<a name="line.273"></a>
+<span class="sourceLineNo">274</span> private boolean fixAssignments = false; // fix assignment errors?<a name="line.274"></a>
+<span class="sourceLineNo">275</span> private boolean fixMeta = false; // fix meta errors?<a name="line.275"></a>
+<span class="sourceLineNo">276</span> private boolean checkHdfs = true; // load and check fs consistency?<a name="line.276"></a>
+<span class="sourceLineNo">277</span> private boolean fixHdfsHoles = false; // fix fs holes?<a name="line.277"></a>
+<span class="sourceLineNo">278</span> private boolean fixHdfsOverlaps = false; // fix fs overlaps (risky)<a name="line.278"></a>
+<span class="sourceLineNo">279</span> private boolean fixHdfsOrphans = false; // fix fs holes (missing .regioninfo)<a name="line.279"></a>
+<span class="sourceLineNo">280</span> private boolean fixTableOrphans = false; // fix fs holes (missing .tableinfo)<a name="line.280"></a>
+<span class="sourceLineNo">281</span> private boolean fixVersionFile = false; // fix missing hbase.version file in hdfs<a name="line.281"></a>
+<span class="sourceLineNo">282</span> private boolean fixSplitParents = false; // fix lingering split parents<a name="line.282"></a>
+<span class="sourceLineNo">283</span> private boolean removeParents = false; // remove split parents<a name="line.283"></a>
+<span class="sourceLineNo">284</span> private boolean fixReferenceFiles = false; // fix lingering reference store file<a name="line.284"></a>
+<span class="sourceLineNo">285</span> private boolean fixHFileLinks = false; // fix lingering HFileLinks<a name="line.285"></a>
+<span class="sourceLineNo">286</span> private boolean fixEmptyMetaCells = false; // fix (remove) empty REGIONINFO_QUALIFIER rows<a name="line.286"></a>
+<span class="sourceLineNo">287</span> private boolean fixReplication = false; // fix undeleted replication queues for removed peer<a name="line.287"></a>
+<span class="sourceLineNo">288</span> private boolean cleanReplicationBarrier = false; // clean replication barriers of a table<a name="line.288"></a>
+<span class="sourceLineNo">289</span> private boolean fixAny = false; // Set to true if any of the fix is required.<a name="line.289"></a>
+<span class="sourceLineNo">290</span><a name="line.290"></a>
+<span class="sourceLineNo">291</span> // limit checking/fixes to listed tables, if empty attempt to check/fix all<a name="line.291"></a>
+<span class="sourceLineNo">292</span> // hbase:meta are always checked<a name="line.292"></a>
+<span class="sourceLineNo">293</span> private Set<TableName> tablesIncluded = new HashSet<>();<a name="line.293"></a>
+<span class="sourceLineNo">294</span> private TableName cleanReplicationBarrierTable;<a name="line.294"></a>
+<span class="sourceLineNo">295</span> private int maxMerge = DEFAULT_MAX_MERGE; // maximum number of overlapping regions to merge<a name="line.295"></a>
+<span class="sourceLineNo">296</span> // maximum number of overlapping regions to sideline<a name="line.296"></a>
+<span class="sourceLineNo">297</span> private int maxOverlapsToSideline = DEFAULT_OVERLAPS_TO_SIDELINE;<a name="line.297"></a>
+<span class="sourceLineNo">298</span> private boolean sidelineBigOverlaps = false; // sideline overlaps with >maxMerge regions<a name="line.298"></a>
+<span class="sourceLineNo">299</span> private Path sidelineDir = null;<a name="line.299"></a>
+<span class="sourceLineNo">300</span><a name="line.300"></a>
+<span class="sourceLineNo">301</span> private boolean rerun = false; // if we tried to fix something, rerun hbck<a name="line.301"></a>
+<span class="sourceLineNo">302</span> private static boolean summary = false; // if we want to print less output<a name="line.302"></a>
+<span class="sourceLineNo">303</span> private boolean checkMetaOnly = false;<a name="line.303"></a>
+<span class="sourceLineNo">304</span> private boolean checkRegionBoundaries = false;<a name="line.304"></a>
+<span class="sourceLineNo">305</span> private boolean ignorePreCheckPermission = false; // if pre-check permission<a name="line.305"></a>
+<span class="sourceLineNo">306</span><a name="line.306"></a>
+<span class="sourceLineNo">307</span> /*********<a name="line.307"></a>
+<span class="sourceLineNo">308</span> * State<a name="line.308"></a>
+<span class="sourceLineNo">309</span> *********/<a name="line.309"></a>
+<span class="sourceLineNo">310</span> final private ErrorReporter errors;<a name="line.310"></a>
+<span class="sourceLineNo">311</span> int fixes = 0;<a name="line.311"></a>
<span class="sourceLineNo">312</span><a name="line.312"></a>
<span class="sourceLineNo">313</span> /**<a name="line.313"></a>
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-<span class="sourceLineNo">316</span> * to prevent dupes.<a name="line.316"></a>
-<span class="sourceLineNo">317</span> *<a name="line.317"></a>
-<span class="sourceLineNo">318</span> * If tablesIncluded is empty, this map contains all tables.<a name="line.318"></a>
-<span class="sourceLineNo">319</span> * Otherwise, it contains only meta tables and tables in tablesIncluded,<a name="line.319"></a>
-<span class="sourceLineNo">320</span> * unless checkMetaOnly is specified, in which case, it contains only<a name="line.320"></a>
-<span class="sourceLineNo">321</span> * the meta table<a name="line.321"></a>
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+<span class="sourceLineNo">533</span> + retryCounter.getMaxAttempts());<a name="line.533"></a>
+<span class="sourceLineNo">534</span> LOG.debug("Failed to delete " + HBCK_LOCK_PATH, ioe);<a name="line.534"></a>
+<span class="sourceLineNo">535</span> try {<a name="line.535"></a>
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+<span class="sourceLineNo">539</span> LOG.warn("Interrupted while deleting lock file" +<a name="line.539"></a>
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<TRUNCATED>